File Content - 
		 Standard on Auditing (SA) 610 (Revised)  
Using the Work of Internal Auditors 
March  
Contents 
Paragraph(s) 
Introduction 
Scope of this SA  ............................................................................................. 1-5 
Relationship between Revised SA 315 and SA 610 (Revised) ...................... 6-10 
The External Auditor’s Responsibility for the Audit  ........................................... 11 
Effective Date  ................................................................................................... 12 
Objectives  ....................................................................................................... 13 
Definitions ........................................................................................................ 14 
Requirements 
Determining Whether, in Which Areas, and to What Extent the  
Work of the Internal Audit Function Can Be Used  ...................................... 15-20 
Using the Work of the Internal Audit Function  ............................................. 21-25 
Determining Whether, in Which Areas, and to What Extent Internal  
Auditors Can Be Used to Provide Direct Assistance .................................... 26-32 
Using Internal Auditors to Provide Direct Assistance  .................................. 33-35 
Documentation ............................................................................................ 36-37 
Application and Other Explanatory Material  
Definition of Internal Audit Function  ............................................................ A1-A4 
Determining Whether, in Which Areas, and to What Extent the  
Work of the Internal Audit Function Can Be Used  .................................... A5-A23 
Using the Work of the Internal Audit Function  ......................................... A24-A30 
Determining Whether, in Which Areas, and to What Extent Internal  
Auditors Can Be Used to Provide Direct Assistance ................................ A31-A39 
Using Internal Auditors to Provide Direct Assistance  .............................. A40-A41 
Standard on Auditing ( SA ) 610 (Revised ), Using the Work of Internal Auditors, should be 
read in conjunction with SA 200, Overall Objectives of the Independent Auditor and the 
Conduct of an Audit in Accordance with Standards on Auditing.
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Introduction 
Scope of this SA  
1. This Standard on Auditing (SA) deals with the external auditor’s responsibilities if using 
the  work  of  internal auditors.  This  includes  (a)  using  the  work  of  the  internal  audit  function  in 
obtaining audit evidence and (b) using internal auditors to provide direct assistance under the 
direction, supervision and review of the external auditor. 
2. This SA does  not  apply  if  the  entity  does  not  have  an  internal  audit  function.  (Ref: 
Para. A2) 
3. If the entity has an internal audit function, the requirements in this SA relating to using 
the work of that function do not apply if: 
(a) The responsibilities and activities of the function are not relevant to the audit; or  
(b) Based on the auditor’s preliminary understanding of the function obtained as a result 
of procedures performed under SA 315,1 the external auditor does not expect to use the work 
of the function in obtaining audit evidence. 
Nothing in this SA requires the external auditor to use the work of the internal audit function 
to  modify  the  nature  or  timing,  or  reduce  the  extent,  of  audit  procedures  to  be  performed 
directly  by  the  external  auditor;  it  remains a decision  of  the  external  auditor  in  establishing 
the overall audit strategy. 
4. Furthermore,  the  requirements  in  this SA relating  to  direct  assistance  do  not  apply  if 
the external auditor does not plan to use internal auditors to provide direct assistance. 
5. In some cases, the external auditor may be prohibited, or restricted to some extent, by 
law or regulation from using the work of the internal audit function or using internal auditors to 
provide direct assistance. The SAs do not override laws or regulations that govern an audit of 
financial  statements.2 Such prohibitions or restrictions will therefore not prevent the external 
auditor from complying with the SAs. (Ref: Para. A31) 
Relationship between SA 315 and SA 610 (Revised) 
6. Many entities establish internal audit functions as part of their internal control and 
governance structures. The objectives and scope of an internal audit function, the nature of its 
responsibilities  and its  organizational  status,  including  the  function’s  authority  and 
accountability,  vary  widely  and  depend on  the  size  and  structure  of  the  entity  and  the 
requirements of management and, where applicable, those charged with governance. 
7. SA  315 addresses  how  the  knowledge  and  experience  of  the  internal  audit  function 
can  inform  the  external  auditor’s  understanding  of  the  entity  and  its  environment  and 
identification  and  assessment of risks of material misstatement. SA 3153 also explains how 
                                                 1 Please  see  the  conforming  amendments  to Revised SA 315, Identifying  and  Assessing  the  Risks  of  Material 
Misstatement through Understanding the Entity and Its Environment, arising pursuant to issuance of this SA 610 
(Revised).  These are given at the end of the document. 2 SA 200, Overall  Objectives  of  the  Independent  Auditor  and  the  Conduct  of  an  Audit  in  Accordance  with 
Standards on Auditing, paragraph A55. 3 Please  see  the  conforming  amendments  to  Revised SA 315, Identifying  and  Assessing  the  Risks  of  Material 
Misstatement through Understanding the Entity and Its Environment, arising pursuant to issuance of this SA 610 
(Revised).  These are given at the end of the document. (Para A116 of SA 315 in those conforming amendments)
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effective  communication  between  the  internal  and  external  auditors  also  creates  an 
environment in  which  the external  auditor  can  be  informed  of  significant  matters  that  may 
affect the external auditor’s work. 
8. Depending  on whether  the internal  audit  function’s organizational  status  and  relevant 
policies and procedures adequately support the objectivity of the internal auditors, the level of 
competency  of  the  internal  audit  function,  and  whether  the  function  applies  a  systematic  and 
disciplined  approach,  the  external  auditor  may  also  be  able  to  use  the  work  of  the  internal 
audit  function  in  a  constructive  and  complementary  manner.  This SA addresses  the  external 
auditor’s  responsibilities  when,  based on  the  external  auditor’s  preliminary  understanding  of 
the  internal  audit  function  obtained  as  a  result of  procedures  performed  under  SA  315,  the 
external  auditor  expects  to  use  the  work  of  the  internal  audit  function  as  part  of  the  audit 
evidence  obtained.4 Such  use  of  that  work  modifies  the nature or timing, or reduces the 
extent, of audit procedures to be performed directly by the external auditor. 
9. In addition, this SA also addresses the external auditor’s responsibilities if considering 
using internal auditors to provide direct assistance under the direction, supervision and review 
of the external auditor. 
10. There may  be individuals in an entity  that perform procedures similar to those 
performed by an  internal audit function. However, unless performed by an objective and 
competent function that  applies  a  systematic  and  disciplined  approach,  including  quality 
control,  such  procedures  would  be  considered internal controls and obtaining evidence 
regarding the effectiveness of such controls would  be  part  of  the  auditor’s  responses  to 
assessed risks in accordance with SA 330.5 
The External Auditor’s Responsibility for the Audit 
11. The  external  auditor  has  sole  responsibility  for  the  audit  opinion  expressed,  and  that 
responsibility is not reduced by the external auditor’s use of the work of the internal audit 
function or internal auditors to provide direct assistance on the engagement. Although they 
may perform audit procedures  similar  to  those  performed  by  the  external  auditor,  neither  the 
internal  audit  function  nor  the  internal  auditors  are  independent  of  the  entity  as  is  required  of 
the  external  auditor  in  an  audit  of financial  statements  in  accordance with SA 200.6 This SA, 
therefore,  defines  the  conditions  that are  necessary  for  the  external  auditor  to  be  able  to  use 
the  work  of  internal  auditors.  It  also  defines  the  necessary  work  effort  to  obtain  sufficient 
appropriate evidence that the work of the internal audit function, or internal auditors providing 
direct assistance, is adequate for the purposes of the audit. The requirements are designed to 
provide a framework for the external auditor’s judgments regarding  the  use  of  the  work  of 
internal auditors to prevent over or undue use of such work. 
Effective Date 
12. This SA is effective for audits of financial statements for periods beginning on or after 
01st April, 2016. 
Objectives 
13. The objectives of the external auditor, where the entity has an internal audit function 
                                                 4 See paragraphs 15–25. 5 SA 330,The Auditor’s Responses to Assessed Risks. 6 SA 200, paragraph 14.
4 
and the external auditor expects to use the work of the function to modify the nature or timing, 
or reduce the extent, of audit procedures to be performed directly by the external auditor, or to 
use internal auditors to provide direct assistance, are:  
(a) To determine whether the work of the internal audit function or direct assistance from 
internal auditors can be used, and if so, in which areas and to what extent; 
and having made that determination: 
(b)  If  using  the  work  of  the  internal  audit  function,  to  determine  whether  that  work  is 
adequate for purposes of the audit; and 
(c) If  using  internal  auditors  to  provide  direct  assistance,  to  appropriately  direct, 
supervise and review their work. 
Definitions 
14. For purposes of the SAs, the following terms have the meanings attributed below: 
(a) Internal audit function – A function of an entity that performs assurance and 
consulting activities designed to evaluate and improve the effectiveness of the entity’s 
governance, risk management and internal control processes. (Ref: Para. A1–A4) 
(b) Direct assistance – The use of internal auditors to perform audit procedures under 
the direction, supervision and review of the external auditor. 
Requirements 
Determining  Whether,  in  Which  Areas,  and  to  What  Extent  the  Work  of  the 
Internal Audit Function Can Be Used 
Evaluating the Internal Audit Function 
15. The external auditor shall determine whether the work of the internal audit function can 
be used for purposes of the audit by evaluating the following: 
(a) The  extent to which the internal audit function’s organizational status and relevant 
policies and  procedures  support  the  objectivity  of  the  internal  auditors;  (Ref:  Para. 
A5–A9) 
(b) The level of competence of the internal audit function; and (Ref: Para. A5–A9) 
(c) Whether  the  internal  audit  function  applies  a  systematic  and  disciplined  approach, 
including quality control. (Ref: Para. A10–A11) 
16. The external auditor shall not use the work of the internal audit function if the external 
auditor determines that: 
(a) The  function’s  organizational  status  and  relevant  policies  and  procedures  do  not 
adequately support the objectivity of internal auditors; 
(b) The function lacks sufficient competence; or 
(c) The function  does  not  apply  a  systematic  and  disciplined  approach,  including quality 
control. (Ref: Para. A12–A14) 
Determining the Nature and Extent of Work of the Internal Audit Function that Can Be
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Used 
17. As  a  basis  for  determining  the  areas  and  the  extent  to  which  the  work  of  the  internal 
audit  function  can  be  used,  the  external  auditor  shall  consider  the  nature  and  scope  of  the 
work  that  has  been  performed, or is planned to be  performed, by  the internal  audit function 
and its relevance to the  external  auditor’s  overall  audit  strategy  and  audit  plan.  (Ref:  Para. 
A15–A17) 
18. The external auditor shall make all significant judgments in the audit engagement and, 
to prevent  undue  use  of  the  work  of  the  internal  audit  function,  shall  plan  to  use  less  of  the 
work of the function and perform more of the work directly: (Ref: Para. A15–A17) 
 (a) The more judgment is involved in: 
(i) Planning and performing relevant audit procedures; and 
(ii) Evaluating the audit evidence gathered; (Ref: Para. A18–A19) 
(b) The higher the assessed risk of material misstatement at the assertion level, with 
special consideration given to risks identified as significant; (Ref: Para. A20–A22) 
(c) The less the internal audit function’s organizational status and relevant policies and 
procedures adequately support the objectivity of the internal auditors; and 
(d) The lower the level of competence of the internal audit function. 
19. The  external  auditor  shall  also  evaluate  whether,  in  aggregate,  using  the  work  of  the 
internal  audit  function  to  the  extent  planned  would  still  result  in  the  external  auditor  being 
sufficiently  involved  in  the  audit,  given  the  external  auditor’s  sole  responsibility  for  the  audit 
opinion expressed. (Ref: Para. A15–A22) 
20. The  external  auditor  shall, in  communicating  with  those  charged with  governance  an 
overview  of  the planned scope and timing of the audit in accordance with SA 260,7 
communicate how the  external  auditor  has  planned  to  use  the  work  of  the  internal  audit 
function. (Ref: Para. A23) 
Using the Work of the Internal Audit Function 
21. If the  external  auditor  plans  to  use  the  work  of  the  internal  audit function,  the  external 
auditor  shall  discuss the planned use of its work with the function as a basis for coordinating 
their respective activities. (Ref: Para. A24–A26) 
22. The external auditor shall read the reports of the internal audit function relating to the 
work of the  function  that  the  external  auditor  plans  to  use  to  obtain  an  understanding  of  the 
nature and extent of audit procedures it performed and the related findings. 
23. The  external  auditor  shall  perform  sufficient  audit  procedures  on  the  body  of  work  of 
the  internal  audit  function  as  a  whole  that  the  external  auditor  plans  to  use  to  determine  its 
adequacy for purposes of the audit, including evaluating whether: 
(a) The  work  of  the  function  had  been  properly  planned, performed,  supervised, 
reviewed and documented; 
                                                 7 SA 260, Communication with Those Charged with Governance, paragraph 11.
6 
(b) Sufficient  appropriate  evidence  had  been  obtained  to  enable  the  function  to  draw 
reasonable conclusions; and 
(c) Conclusions  reached  are  appropriate  in  the  circumstances  and  the  reports  prepared 
by  the function  are  consistent  with  the  results  of  the  work  performed.  (Ref:  Para. 
A27–A30) 
24. The nature and extent of the external auditor’s audit procedures shall be responsive to 
the external auditor’s evaluation of: 
(a) The amount of judgment involved; 
(b) The assessed risk of material misstatement; 
(c) The extent to which the internal audit function’s organizational status and relevant 
policies and procedures support the objectivity of the internal auditors; and 
(d) The level of competence of the function;8 (Ref: Para. A27–A29) 
and shall include reperformance of some of the work. (Ref: Para. A30) 
25. The external auditor shall also evaluate whether the external auditor’s conclusions 
regarding the  internal  audit  function  in  paragraph  15  of this SA and  the  determination  of  the 
nature  and  extent  of  use  of  the  work of  the  function  for  purposes  of  the  audit in paragraphs 
18–19 of this SA remain appropriate. 
Determining  Whether,  in  Which  Areas,  and  to  What  Extent  Internal  Auditors 
Can Be Used to Provide Direct Assistance 
Determining  Whether  Internal  Auditors  Can  Be  Used  to  Provide  Direct  Assistance  for 
Purposes of the Audit 
26. The  external  auditor  may  be  prohibited  by  law  or  regulation  from  obtaining  direct 
assistance  from internal  auditors.  If so,  paragraphs  27–35  and  37  do  not  apply.  (Ref:  Para. 
A31) 
27. If  using  internal  auditors  to  provide  direct  assistance  is  not  prohibited  by  law  or 
regulation, and the external auditor plans to use internal auditors to provide direct assistance 
on  the  audit,  the  external auditor shall evaluate the existence and significance of threats to 
objectivity and the level of competence of the internal auditors who will be providing such 
assistance. The external auditor’s evaluation of the existence and significance of threats to 
the internal auditors’ objectivity shall include inquiry of the internal auditors regarding interests 
and relationships that may create a threat to their objectivity. (Ref: Para. A32–A34) 
28. The external auditor shall not use an internal auditor to provide direct assistance if:  
(a) There are significant threats to the objectivity of the internal auditor; or 
(b) The  internal  auditor  lacks  sufficient  competence  to  perform the  proposed  work.  (Ref: 
Para. A32–A34) 
Determining  the  Nature  and  Extent of  Work  that  Can  Be  Assigned  to  Internal  Auditors 
Providing Direct Assistance 
                                                 8 See paragraph 18.
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29. In determining the nature and extent of work that may be assigned to internal auditors 
and the nature, timing and extent of direction, supervision and review that is appropriate in the 
circumstances, the external auditor shall consider: 
(a) The amount of judgment involved in: 
(i) Planning and performing relevant audit procedures; and 
(ii) Evaluating the audit evidence gathered; 
(b)  The assessed risk of material misstatement; and 
(c) The  external  auditor’s  evaluation  of  the  existence  and  significance  of  threats  to  the 
objectivity and level of competence of the internal auditors who will be providing such 
assistance. (Ref: Para. A35–A39) 
30. The  external  auditor  shall  not  use  internal  auditors  to  provide  direct  assistance  to 
perform procedures that: 
(a)  Involve making significant judgments in the audit; (Ref: Para. A19) 
(b) Relate to higher assessed risks of material misstatement where the judgment 
required in performing the relevant audit procedures or evaluating the audit evidence 
gathered is more than limited; (Ref: Para. A38) 
(c) Relate  to  work  with  which  the  internal  auditors  have  been  involved  and  which  has 
already been, or will be, reported to management or those charged with governance 
by the internal audit function; or 
(d) Relate  to  decisions  the  external  auditor  makes  in  accordance  with  this SA regarding 
the  internal audit  function  and  the  use  of  its  work  or  direct  assistance.  (Ref:  Para. 
A35–A39) 
31. Having appropriately evaluated whether and, if so, to what extent internal auditors can 
be used to provide direct assistance on the audit, the external auditor shall, in communicating 
with those charged with governance an overview of the planned scope and timing of the audit 
in accordance with SA 260,9 communicate the nature and extent of the planned use of internal 
auditors  to  provide direct assistance so as to reach a mutual understanding that such use is 
not excessive in the circumstances of the engagement. (Ref: Para. A39) 
32. The  external  auditor  shall  evaluate  whether,  in  aggregate,  using  internal  auditors  to 
provide  direct assistance  to  the  extent  planned, together with  the  planned use  of  the work of 
the internal audit function, would still result in the external auditor being sufficiently involved in 
the audit, given the external auditor’s sole responsibility for the audit opinion expressed. 
Using Internal Auditors to Provide Direct Assistance 
33. Prior  to  using  internal  auditors  to  provide  direct  assistance  for  purposes  of  the  audit, 
the external auditor shall: 
(a) Obtain  written  agreement  from  an  authorized  representative  of  the  entity  that  the 
internal  auditors will  be  allowed  to  follow  the  external  auditor’s  instructions,  and  that 
                                                 9 SA 260, paragraph 11.
8 
the  entity  will  not  intervene  in the  work  the  internal  auditor  performs  for  the  external 
auditor; and  
(b) Obtain  written  agreement  from  the  internal  auditors  that  they  will  keep  confidential 
specific  matters as instructed by the external auditor and inform the external auditor 
of any threat to their objectivity. 
34. The external auditor shall direct, supervise and review the  work performed by internal 
auditors on the engagement in accordance with SA 220.10 In so doing: 
(a) The  nature,  timing  and  extent  of  direction,  supervision,  and  review  shall  recognize 
that  the internal  auditors  are  not  independent  of  the  entity  and  be  responsive  to  the 
outcome of the evaluation of the factors in paragraph 29 of this SA; and 
(b) The review procedures shall include the external auditor checking back to the 
underlying audit evidence for some of the work performed by the internal auditors. 
The direction, supervision and review by  the external auditor of the work performed by  the 
internal auditors  shall  be  sufficient  in  order  for  the  external  auditor  to  be  satisfied  that  the 
internal  auditors  have obtained  sufficient  appropriate  audit  evidence  to  support  the 
conclusions based on that work. (Ref: Para. A40–A41)  
35. In  directing,  supervising  and  reviewing  the  work  performed  by  internal  auditors,  the 
external  auditor shall remain alert for indications that the external auditor’s evaluations in 
paragraph 27 are no longer appropriate. 
Documentation 
36. If the  external  auditor  uses  the  work  of the  internal  audit function,  the  external  auditor 
shall include in the audit documentation: 
(a) The evaluation of: 
(i) Whether the function’s organizational status and relevant policies and 
procedures adequately support the objectivity of the internal auditors; 
(ii) The level of competence of the function; and 
(iii) Whether the function applies a systematic and disciplined approach, including 
quality control; 
(b) The nature and extent of the work used and the basis for that decision; and 
(c) The  audit  procedures  performed  by  the  external  auditor  to  evaluate  the  adequacy  of 
the work used. 
37. If  the  external  auditor  uses  internal  auditors  to  provide  direct  assistance  on  the  audit, 
the external auditor shall include in the audit documentation: 
(a) The  evaluation  of  the  existence  and  significance of  threats  to  the  objectivity  of  the 
internal auditors, and the level of competence of the internal auditors used to provide 
direct assistance; 
(b) The basis for the decision regarding the nature and extent of the work performed by 
                                                 10 SA 220, Quality Control for an Audit of Financial Statements.
9 
the internal auditors; 
(c) Who  reviewed  the  work  performed  and the  date  and  extent  of  that  review  in 
accordance with SA 230;11 
(d) The written agreements obtained from an authorized representative of the entity and 
the internal auditors under paragraph 33 of this SA; and  
(e) The working papers prepared by the internal auditors who provided direct assistance 
on the audit engagement. 
*** 
Application and Other Explanatory Material 
Definition of Internal Audit Function (Ref: Para. 2, 14(a)) 
A1. The objectives and scope of internal audit functions typically include assurance and 
consulting  activities designed  to  evaluate and improve  the  effectiveness of the entity’s 
governance processes, risk management and internal control such as the following: 
Activities Relating to Governance 
 The internal audit function may assess the governance process in its 
accomplishment of  objectives  on  ethics  and  values,  performance  management  and 
accountability, communicating risk and control information to appropriate areas of the 
organization and effectiveness of  communication among those charged with 
governance, external and internal auditors, and management. 
Activities Relating to Risk Management 
 The internal audit function may assist the entity by identifying and evaluating 
significant exposures to risk and contributing to the improvement of risk management 
and internal control (including effectiveness of the financial reporting process). 
 The internal audit function may  perform procedures to assist the entity in the 
detection of fraud. 
Activities Relating to Internal Control 
 Evaluation of internal control. The internal audit function may be assigned specific 
responsibility for reviewing controls, evaluating their operation and recommending 
improvements thereto. In doing so, the internal audit function provides assurance on 
the  control. For example, the internal audit function might plan and perform tests or 
other  procedures to provide assurance to management and those charged with 
governance  regarding the design, implementation and operating effectiveness of 
internal control, including those controls that are relevant to the audit. 
 Examination of financial and operating information. The internal audit function may 
be  assigned  to  review  the  means  used  to  identify,  recognize,  measure,  classify  and 
report financial and operating information, and to make specific inquiry into individual 
items, including detailed testing of transactions, balances and procedures. 
 Review of operating activities. The internal audit function may be assigned to review 
                                                 11 SA 230, Audit Documentation.
10 
the  economy,  efficiency  and  effectiveness  of  operating  activities,  including  non-
financial activities of an entity. 
 Review  of  compliance  with  laws  and  regulations. The  internal  audit  function  may  be 
assigned  to review compliance with laws, regulations and other external 
requirements, and with  management  policies and  directives  and  other  internal 
requirements. 
A2. Activities similar to those performed by an internal audit function may be conducted by 
functions  with  other  titles  within  an  entity.  Some  or  all  of  the  activities  of  an  internal  audit 
function  may  also be  outsourced to a third-party service provider. Neither the title of the 
function, nor whether it is  performed  by  the  entity  or  a  third-party  service  provider,  are  sole 
determinants of whether or not the external auditor can use the work of the function. Rather, it 
is  the  nature  of  the  activities;  the  extent to which the internal audit function’s organizational 
status and relevant policies and procedures  support the objectivity of the internal auditors; 
competence; and systematic and disciplined  approach  of  the  function  that  are  relevant. 
References  in  this SA to  the  work  of  the  internal  audit  function include relevant activities of 
other functions or third-party providers that have these characteristics. 
A3. In  addition,  those  in  the  entity  with  operational  and  managerial  duties  and 
responsibilities  outside  of  the  internal  audit  function  would  ordinarily  face  threats  to  their 
objectivity that would preclude them from being treated as part of an internal audit function for 
the  purpose  of this SA ,  although  they  may  perform control activities that can be tested in 
accordance with SA 330.12 For this reason, monitoring controls performed by an owner-
manager would not be considered equivalent to an internal audit function. 
A4. While the objectives of an entity’s internal audit function and the external auditor differ, 
the function  may perform audit procedures similar to those performed by the external auditor 
in an audit of financial statements. If so, the external auditor may make use of the function for 
purposes of the audit in one or more of the following ways: 
 To obtain information that is relevant to the external auditor’s assessments of the 
risks of material misstatement due to error or fraud. In this regard, SA 31513 requires 
the  external auditor to obtain an understanding of the nature of the internal audit 
function’s responsibilities, its status within the organization, and the activities 
performed, or to be  performed,  and  make  inquiries  of  appropriate  individuals  within 
the internal audit function (if the entity has such a function); or 
 Unless  prohibited,  or  restricted  to  some  extent,  by  law  or  regulation,  the  external 
auditor,  after  appropriate  evaluation,  may  decide  to  use  work  that  has  been 
performed  by  the  internal  audit  function  during  the  period  in  partial  substitution  for 
audit evidence to be obtained directly by the external auditor.14 
In addition, unless prohibited, or restricted to some extent, by law or regulation, the external 
auditor may  use  internal  auditors  to  perform  audit  procedures  under  the  direction, 
supervision and review of the external auditor (referred to as “direct assistance” in this SA).15 
                                                 12 See paragraph 10. 13 Please  see  the  conforming  amendments  to  Revised SA 315, Identifying  and  Assessing  the  Risks  of  Material 
Misstatement through Understanding the Entity and Its Environment, arising pursuant to issuance of this SA 610 
(Revised).  These are given at the end of the document.(please see SA 315, paragraph 6(a) therein) 14 See paragraphs 15–25. 15 See paragraphs 26–35.
11 
Determining  Whether,  in  Which  Areas,  and  to  What  Extent  the  Work  of  the 
Internal Audit Function Can Be Used 
Evaluating the Internal Audit Function 
Objectivity and Competence (Ref: Para. 15(a)–(b)) 
A5. The external auditor exercises professional judgment in determining whether the work 
of the internal audit function can be used for purposes of the audit, and the nature and extent 
to which the work of the internal audit function can be used in the circumstances. 
A6. The extent to which the internal audit function’s organizational status and relevant 
policies and  procedures support the objectivity of the internal auditors and the level of 
competence of the function are particularly important in determining whether to use and, if so, 
the  nature  and  extent  of  the  use  of  the  work  of  the  function  that  is  appropriate  in  the 
circumstances. 
A7. Objectivity  refers  to  the  ability  to  perform those  tasks  without  allowing  bias,  conflict  of 
interest  or  undue  influence  of  others  to  override  professional  judgments.  Factors  that  may 
affect the external auditor’s evaluation include the following: 
 Whether the organizational status of the internal audit function, including the 
function’s  authority  and  accountability,  supports  the  ability  of  the  function  to  be  free 
from  bias,  conflict  of  interest or undue influence of others to override professional 
judgments. For example, whether the internal audit function reports to those charged 
with  governance  or  an  officer  with  appropriate  authority,  or  if  the  function  reports  to 
management, whether it has direct access to those charged with governance. 
 Whether the internal audit function is free of any conflicting responsibilities, for 
example,  having managerial or operational duties or responsibilities that are outside 
of the internal audit function. 
 Whether those charged with governance oversee employment decisions related to 
the  internal  audit  function,  for  example,  determining  the  appropriate  remuneration 
policy. 
 Whether there are any constraints or restrictions placed on the internal audit function 
by  management  or  those  charged  with  governance,  for  example,  in  communicating 
the internal audit function’s findings to the external auditor. 
 Whether the internal auditors are members of relevant professional bodies and their 
memberships obligate their compliance with relevant professional standards relating 
to objectivity, or whether their internal policies achieve the same objectives. 
A8. Competence of the internal audit function refers to the attainment and maintenance of 
knowledge and skills of the function as a whole at the level required to enable assigned tasks 
to  be  performed  diligently and in accordance with applicable professional standards. Factors 
that may affect the external auditor’s determination include the following: 
 Whether the internal audit function is adequately and appropriately resourced relative 
to the size of the entity and the nature of its operations. 
 Whether  there  are  established  policies  for  hiring,  training  and  assigning  internal 
auditors to internal audit engagements.
12 
 Whether the internal auditors have adequate technical training and proficiency in 
auditing.  Relevant  criteria  that  may  be  considered by  the  external  auditor  in  making 
the  assessment may include, for example, the internal auditors’ possession of a 
relevant professional designation and experience. 
 Whether the internal auditors possess the required knowledge relating to the entity’s 
financial  reporting and the applicable financial reporting framework and whether the 
internal audit  function  possesses  the  necessary  skills  (for  example,  industry-specific 
knowledge) to perform work related to the entity’s financial statements. 
 Whether the internal auditors are members of relevant professional bodies that oblige 
them  to  comply with the relevant professional standards including continuing 
professional development requirements. 
A9. Objectivity  and  competence  may  be  viewed  as  a  continuum.  The  more  the  internal 
audit function’s organizational status and relevant policies and procedures adequately support 
the  objectivity  of  the  internal  auditors  and  the  higher  the  level  of  competence  of  the  function, 
the  more  likely  the  external  auditor  may  make  use  of the  work  of  the  function  and  in  more 
areas.  However,  an  organizational  status and relevant policies and procedures that provide 
strong support for the objectivity  of the  internal auditors cannot compensate for the lack of 
sufficient competence of the internal audit function. Equally, a high level of competence of the 
internal  audit  function  cannot  compensate  for an  organizational  status  and  policies  and 
procedures that do not adequately support the objectivity of the internal auditors. 
Application of a Systematic and Disciplined Approach (Ref: Para. 15(c)) 
A10. The application of a systematic and disciplined approach to planning, performing, 
supervising, reviewing and documenting its activities distinguishes the activities of the internal 
audit function from other monitoring control activities that may be performed within the entity. 
A11. Factors that may affect the external auditor’s determination of whether the internal audit 
function applies a systematic and disciplined approach include the following: 
 The existence, adequacy and use of documented internal audit procedures or 
guidance  covering  such  areas  as  risk  assessments,  work  programs,  documentation 
and  reporting,  the  nature  and  extent  of  which  is  commensurate  with  the  size  and 
circumstances of an entity. 
 Whether  the  internal  audit  function  has  appropriate  quality  control  policies  and 
procedures, for  example,  such  as  those  policies  and  procedures  in  SQC  116 that 
would be applicable to an internal audit function (such as those relating to leadership, 
human resources and  engagement performance) or quality  control requirements in 
standards set by the relevant  professional  bodies  for  internal  auditors.  Such bodies 
may  also establish other appropriate  requirements  such  as  conducting  periodic 
external quality assessments. 
Circumstances When Work of the Internal Audit Function Cannot Be Used (Ref: Para. 16) 
A12. The  external  auditor’s evaluation  of whether  the  internal audit  function’s organizational 
status  and relevant  policies  and  procedures  adequately  support  the  objectivity  of  the  internal 
                                                 16 Standard on Quality Control (SQC) 1, Quality Control for Firms that Perform Audits and Reviews of 
Historical Financial Information, and Other Assurance and Related Services Engagements.
13 
auditors,  the  level of competence of the  internal  audit function, and whether it applies a 
systematic and disciplined  approach  may  indicate  that  the  risks  to  the  quality  of  the  work  of 
the function are too significant and therefore it is not appropriate to use any of the work of the 
function as audit evidence. 
A13. Consideration of the factors in paragraphs A7, A8 and A11 of this SA individually and in 
aggregate is important because an individual factor is often not sufficient to conclude that the 
work of the internal audit function cannot be used for purposes of the audit. For example, the 
internal audit  function’s  organizational  status  is  particularly  important  in  evaluating  threats  to 
the objectivity of the internal auditors. If the internal audit function reports to management, this 
would be considered a significant threat to the function’s objectivity unless other factors such 
as those described in  paragraph A7 of this SA collectively provide sufficient safeguards to 
reduce the threat to an acceptable level. 
A14. In  addition, a  self-review  threat17 is  created  when  the  external  auditor  accepts  an 
engagement  to  provide  internal  audit  services  to  an  audit  client,  and  the  results  of  those 
services  will  be  used  in  conducting  the  audit.  This  is  because  of  the  possibility  that  the 
engagement team will use the results of the internal audit service without properly evaluating 
those  results  or  without exercising the same level of professional skepticism as would be 
exercised when the internal  audit  work  is  performed  by  individuals  who  are  not  members  of 
the  firm. Paragraph  290.173  of  the  Code  of  Ethics,  issued  by  the  Institute  of  Chartered 
Accountants  of  India  therefore in  the  context  of  provision  of  internal  audit  service  to  financial 
statement audit clients, specifically provides that “a statutory auditor of an entity cannot be its 
internal auditor as it will not be possible for him to give an independent and objective opinion”. 
The said  Code  of  Ethics discusses  the  threats  and  the  safeguards  that  can  be  applied  to 
reduce the threats to an acceptable level in other circumstances. 
Determining the Nature and Extent of Work of the Internal Audit Function that Can Be 
Used 
Factors  Affecting  the  Determination  of  the  Nature  and  Extent  of  the  Work  of  the  Internal 
Audit Function that Can Be Used (Ref: Para. 17–19) 
A15. Once the external auditor has determined that the work of the internal audit function can 
be  used  for  purposes  of  the  audit,  a  first  consideration  is  whether  the  planned  nature  and 
scope  of  the  work  of  the  internal  audit  function  that  has  been  performed,  or  is  planned  to  be 
performed, is relevant to the overall audit strategy and audit plan that the external auditor has 
established in accordance with SA 300.18 
A16. Examples of work of the internal audit function that can be used by the external auditor 
include the following: 
 Testing of the operating effectiveness of controls. 
 Substantive procedures involving limited judgment. 
 Observations of inventory counts. 
                                                 17 Attention  of the members is also  invited  to  paragraph  2.1  of  the  Guidance  Note  on  Independence  of  Auditors, 
issued by the Institute of Chartered Accountants of India. 18 SA 300, Planning an Audit of Financial Statements.
14 
 Tracing transactions through the information system relevant to financial reporting. 
 Testing of compliance with regulatory requirements. 
 In  some  circumstances,  audits  or  reviews  of  the  financial  information  of  subsidiaries 
that are not significant components to the group (where this does not conflict with the 
requirements of SA 600).19 
A17. The external auditor’s determination of the planned nature and extent of use of the work 
of the internal  audit  function  will  be  influenced  by  the  external  auditor’s  evaluation  of  the 
extent  to  which  the  internal audit function’s organizational status and relevant policies and 
procedures adequately  support  the  objectivity  of  the  internal  auditors  and  the  level  of 
competence  of  the  internal  audit  function in  paragraph  18  of  this SA.  In  addition,  the amount 
of  judgment  needed  in  planning,  performing  and  evaluating  such  work  and  the  assessed  risk 
of  material  misstatement  at  the  assertion  level  are  inputs to  the  external  auditor’s 
determination.  Further,  there  are  circumstances  in  which  the  external  auditor cannot  use  the 
work of the internal audit function for purpose of the audit as described in paragraph 16 of this 
SA. 
Judgments  in  planning  and  performing  audit  procedures  and  evaluating  results  (Ref:  Para. 
18(a), 30(a)) 
A18. The  greater  the  judgment  needed  to  be  exercised  in  planning  and  performing  the  audit 
procedures  and evaluating the audit evidence, the external auditor will need to perform more 
procedures  directly  in  accordance  with  paragraph  18  of  this SA,  because  using  the  work  of 
the internal audit function alone will not provide the external auditor with sufficient appropriate 
audit evidence. 
A19. Since the external auditor has sole responsibility for the audit opinion expressed, the 
external  auditor needs to make the significant judgments in the audit engagement in 
accordance with paragraph 18. Significant judgments include the following: 
 Assessing the risks of material misstatement; 
 Evaluating the sufficiency of tests performed; 
 Evaluating  the  appropriateness  of  management’s  use  of  the  going  concern 
assumption; 
 Evaluating significant accounting estimates; and 
 Evaluating the adequacy of disclosures in the financial statements, and other matters 
affecting the auditor’s report. 
Assessed risk of material misstatement (Ref: Para. 18(b)) 
A20. For a particular account balance, class of transaction or disclosure, the higher an 
assessed risk of  material misstatement at the assertion level, the more judgment is often 
involved in planning and  performing  the  audit  procedures  and  evaluating  the  results  thereof. 
In  such  circumstances,  the  external  auditor  will  need  to  perform  more  procedures  directly  in 
accordance  with  paragraph  18  of  this SA,  and  accordingly,  make  less  use  of  the  work  of  the 
internal  audit  function  in  obtaining  sufficient  appropriate audit  evidence.  Furthermore,  as 
                                                 19 SA 600, Using the Work of Another Auditor.
15 
explained  in SA 200,20 the  higher  the  assessed  risks  of  material misstatement,  the  more 
persuasive the audit evidence required by the external auditor will need to be, and, therefore, 
the external auditor will need to perform more of the work directly. 
A21. As explained in SA 315,21 significant risks require special audit consideration and 
therefore the external auditor’s ability to use the work of the internal audit function in relation 
to  significant  risks  will  be  restricted  to  procedures  that  involve  limited  judgment.  In addition, 
where the risks of material misstatement is other than low, the use of the work of the internal 
audit function alone is unlikely to reduce audit risk to an acceptably low level and eliminate the 
need for the external auditor to perform some tests directly. 
A22. Carrying  out  procedures  in  accordance  with  this SA may  cause  the  external  auditor  to 
reevaluate  the external  auditor’s  assessment  of  the  risks  of  material  misstatement. 
Consequently, this may affect the external auditor’s determination of whether to use the work 
of the internal audit function and whether further application of this SA is necessary. 
Communication with Those Charged with Governance (Ref: Para. 20) 
A23.  In  accordance  with SA 260,22 the  external  auditor  is  required  to  communicate  with 
those charged with governance an overview of the planned scope and timing of the audit. The 
planned  use  of  the  work of  the  internal  audit  function  is  an  integral  part  of  the  external 
auditor’s overall audit strategy and is therefore relevant to those charged with governance for 
their understanding of the proposed audit approach. 
Using the Work of the Internal Audit Function 
Discussion and Coordination with the Internal Audit Function (Ref: Para. 21) 
A24. In discussing the planned use of their work with the internal audit function as a basis for 
coordinating the respective activities, it may be useful to address the following: 
 The timing of such work. 
 The nature of the work performed. 
 The extent of audit coverage.  
 Materiality for the financial statements as a whole (and, if applicable, materiality level 
or levels for particular classes of transactions, account balances or disclosures), and 
performance materiality. 
 Proposed methods of item selection and sample sizes. 
 Documentation of the work performed. 
 Review and reporting procedures. 
A25. Coordination  between  the  external  auditor  and  the  internal  audit  function  is  effective 
when, for example: 
 Discussions take place at appropriate intervals throughout the period. 
                                                 20 SA 200, paragraph A29. 21 SA 315, paragraph 4(e). 22 SA 260, paragraph 11.
16 
 The external auditor informs the internal audit function of significant matters that may 
affect the function. 
 The  external  auditor  is  advised  of  and  has  access  to  relevant  reports  of  the  internal 
audit function and is informed of any significant matters that come to the attention of 
the function when such matters may affect the work of the external auditor so that the 
external  auditor  is  able  to  consider  the  implications  of  such  matters  for  the  audit 
engagement. 
A26. SA 20023 discusses the importance of the auditor planning and performing the audit with 
professional  skepticism,  including  being  alert  to  information  that  brings  into  question  the 
reliability of documents and responses to inquiries to be used as audit evidence. Accordingly, 
communication  with  the  internal  audit  function  throughout  the  engagement  may  provide 
opportunities  for  internal  auditors to bring matters that may  affect the work of the external 
auditor to the external auditor’s attention.24 The  external  auditor  is  then  able  to take  such 
information  into  account  in  the  external auditor’s  identification  and  assessment of risks of 
material misstatement. In addition, if such  information may be indicative of a heightened risk 
of a material misstatement of the financial  statements  or may  be  regarding  any  actual, 
suspected  or  alleged  fraud,  the  external  auditor  can  take  this  into  account  in  the  external 
auditor’s  identification  of  risk  of  material  misstatement  due  to fraud  in  accordance  with SA 
240.25 
Procedures  to  Determine  the  Adequacy of  Work  of  the  Internal  Audit  Function  (Ref: 
Para. 23–24) 
A27. The external auditor’s audit procedures on the body of work of the internal audit function 
as  a  whole  that the external auditor plans to use provide a basis for evaluating the overall 
quality of the function’s work and the objectivity with which it has been performed. 
A28. The  procedures  the  external  auditor  may  perform  to  evaluate  the  quality  of  the  work 
performed  and  the  conclusions  reached  by  the  internal  audit  function,  in  addition  to 
reperformance in accordance with paragraph 24, include the following: 
 Making inquiries of appropriate individuals within the internal audit function. 
 Observing procedures performed by the internal audit function.  
 Reviewing the internal audit function’s work program and working papers. 
A29.  The more judgment involved, the higher the  assessed  risk of material  misstatement, 
the  less the  internal audit function’s organizational status and relevant policies and 
procedures adequately support the objectivity of the internal auditors, or the lower the level of 
competence  of  the  internal  audit  function,  the  more  audit  procedures  are  needed  to  be 
performed  by  the  external  auditor  on  the  overall body of work of the function to support the 
decision to use the work of the function in  obtaining  sufficient  appropriate  audit  evidence  on 
which to base the audit opinion. 
                                                 23 SA 200, paragraphs 15 and A18. 24 Please  see  the  conforming  amendments  to  Revised SA 315, Identifying  and  Assessing  the  Risks  of  Material 
Misstatement through Understanding the Entity and Its Environment, arising pursuant to issuance of this SA 610 
(Revised).  These are given at the end of the document.(please see SA 315, paragraph A116 therein). 25 SA 315, paragraph A11 (as  given  in  the conforming  amendments) in relation to SA 240, The Auditor’s 
Responsibilities Relating to Fraud in an Audit of Financial Statements.
17 
Reperformance (Ref: Para. 24) 
A30. For purposes of this SA, reperformance involves the external auditor’s independent 
execution of  procedures  to  validate  the  conclusions  reached  by  the  internal  audit  function. 
This  objective  may  be  accomplished  by  examining  items  already  examined  by  the  internal 
audit  function  or,  where  it  is  not  possible  to  do  so,  the  same  objective  may  also  be 
accomplished by examining sufficient other similar items not actually examined by the internal 
audit function. Reperformance provides more persuasive evidence regarding the adequacy of 
the work of the internal audit function compared to other procedures the external auditor may 
perform  in  paragraph  A28.  While  it  is  not  necessary  for  the  external  auditor  to  do 
reperformance  in  each  area  of  work  of  the  internal  audit  function  that  is  being  used,  some 
reperformance  is  required  on  the  body  of  work  of  the  internal  audit  function  as  a  whole  that 
the  external  auditor plans to use in accordance with paragraph 24. The external auditor is 
more likely to focus reperformance in those areas where more judgment was exercised by the 
internal  audit function in  planning,  performing  and  evaluating  the  results of  the  audit 
procedures and in areas of higher risk of material misstatement. 
Determining  Whether,  in  Which  Areas  and  to  What  Extent  Internal  Auditors 
Can Be Used to Provide Direct Assistance 
Determining  Whether  Internal  Auditors  Can  Be  Used  to  Provide  Direct  Assistance  for 
Purposes of the Audit (Ref: Para. 5, 26–28) 
A31. In case where the external auditor is prohibited by law or regulation from using internal 
auditors  to  provide  direct  assistance,  it  is  relevant  for  the principal auditors  to  consider 
whether  the prohibition  also  extends  to  component  auditors  and,  if  so,  to  address  this  in  the 
communication to the component auditors. 
A32. As  stated  in  paragraph  A7  of  this SA,  objectivity  refers to the ability  to perform the 
proposed work without allowing bias, conflict of interest or undue influence of others to 
override professional judgments. In evaluating the existence and significance of threats to the 
objectivity of an internal auditor, the following factors may be relevant: 
 The extent to which the internal audit function’s organizational status and relevant 
policies and procedures support the objectivity of the internal auditors.26 
 Family  and  personal  relationships  with  an  individual  working  in,  or  responsible  for, 
the aspect of the entity to which the work relates. 
 Association with the division or department in the entity to which the work relates. 
 Significant  financial  interests  in  the  entity  other  than  remuneration  on  terms 
consistent with those applicable to other employees at a similar level of seniority. 
Material issued by relevant professional bodies for internal auditors may provide additional 
useful guidance. 
A33. There  may  also  be  some  circumstances  in  which  the  significance  of  the  threats  to  the 
objectivity of an internal auditor is such that there are no safeguards that could reduce them 
to  an  acceptable  level.  For example, because the adequacy of safeguards is influenced by 
                                                 26 See paragraph A7.
18 
the significance of the work in the context of the audit, paragraph 30(a) and (b) prohibits the 
use of internal auditors to provide direct assistance in relation to performing procedures that 
involve  making  significant  judgments  in  the  audit  or that  relate  to  higher  assessed  risks  of 
material  misstatement  where  the  judgment  required  in  performing the  relevant  audit 
procedures or  evaluating  the  audit  evidence  gathered  is  more  than  limited.  This  would also 
be  the  case  where  the  work  involved  creates  a  self-review  threat,  which  is  why  internal 
auditors  are prohibited  from  performing  procedures  in  the  circumstances  described  in 
paragraph 30(c) and (d). 
A34. In  evaluating  the  level  of  competence  of  an  internal  auditor,  many  of  the  factors  in 
paragraph  A8  of  this SA may  also  be  relevant,  applied  in  the  context  of  individual  internal 
auditors and the work to which they may be assigned. 
Determining the Nature and Extent of Work that Can Be Assigned to Internal Auditors 
Providing Direct Assistance (Ref: Para. 29–31) 
A35. Paragraphs  A15–A22  of  this SA provide  relevant  guidance  in  determining  the  nature 
and extent of work that may be assigned to internal auditors. 
A36. In determining the nature of work that may be assigned to internal auditors, the external 
auditor is careful to limit such work to those areas that would be appropriate to be assigned. 
Examples  of activities and tasks that would not be appropriate to use internal auditors to 
provide direct assistance include the following: 
 Discussion of fraud risks. However, the external auditors may make inquiries of 
internal auditors about fraud risks in the organization in accordance with SA 315.27 
 Determination of unannounced audit procedures as addressed in SA 240. 
A37. Similarly, since in accordance with SA 50528 the external auditor is required to maintain 
control over external confirmation requests and evaluate the results of external confirmation 
procedures,  it would not be appropriate to assign these responsibilities to internal auditors. 
However, internal auditors may assist in assembling information necessary for the external 
auditor to resolve exceptions in confirmation responses. 
A38. The amount of judgment involved and the risk of material misstatement are also 
relevant in determining the work that may be assigned to internal auditors providing direct 
assistance. For example,  in  circumstances  where  the  valuation of  accounts  receivable  is 
assessed  as  an  area  of higher  risk,  the  external  auditor  could  assign  the  checking  of  the 
accuracy  of  the  aging  to  an  internal auditor providing direct assistance. However, because 
the evaluation of the adequacy of the provision based on the aging would involve more than 
limited  judgment,  it  would  not  be  appropriate to  assign  that  latter  procedure  to  an  internal 
auditor providing direct assistance. 
A39. Notwithstanding the direction, supervision and review by the external auditor, excessive 
use of internal  auditors  to  provide  direct  assistance  may  affect  perceptions  regarding  the 
independence of the external audit engagement. 
Using Internal Auditors to Provide Direct Assistance (Ref: Para. 34) 
A40. As  individuals  in  the  internal  audit  function  are  not  independent  of  the  entity  as  is 
                                                 27 SA 315, paragraph 6(a). 28 SA 505, External Confirmations, paragraphs 7 and 16.
19 
required  of  the  external auditor  when  expressing  an  opinion  on  financial  statements,  the 
external  auditor’s  direction,  supervision and  review  of  the  work  performed  by  internal 
auditors providing direct assistance will generally be of a different nature and more extensive 
than if members of the engagement team perform the work. 
A41. In  directing  the  internal  auditors,  the  external  auditor  may,  for  example,  remind  the 
internal  auditors to  bring  accounting  and  auditing  issues  identified  during  the  audit  to  the 
attention of the external auditor. In reviewing the work performed by the internal auditors, the 
external auditor’s considerations include whether the evidence obtained is sufficient and 
appropriate in the circumstances, and that it supports the conclusions reached.
20 
RELATED CONFORMING AMENDMENTS 
Note: The following are conforming amendments to SQC 1 and other SAs as a result of SA 
610 (Revised), Using the Work of Internal Auditors. The footnote numbers within  these 
amendments do not align with the SAs that will be amended, and reference should be made 
to those SAs. 
SQC 1, Quality Control for Firms that Perform Audits and Reviews of Historical 
Financial  Information,  and  Other  Assurance  and  Related  Services 
Engagements 
Definitions 
6. In this SQC, the following terms have the meanings attributed below: 
(e) Engagement  team – all  personnel  performing  an  engagement,  including  any 
experts  contracted  by  the  firm  in  connection  with  that  engagement. The  term “engagement 
team” excludes individuals within the client’s internal audit function who  provide  direct 
assistance  on  an  audit  engagement  when  the  external  auditor  complies  with  the 
requirements of SA 610 (Revised).29  
SA 220, Quality Control for an Audit of Financial Statements 
Definitions 
7. For purposes of the SAs, the following terms have the meanings attributed below: 
(d) Engagement  team – all  personnel  performing  an  engagement,  including  any 
experts  contracted  by  the  firm  in  connection  with  that  engagement. The term “engagement 
team” excludes individuals within the client’s internal audit function who  provide  direct 
assistance  on  an  audit  engagement  when  the  external  auditor  complies with  the 
requirements of SA 610 (Revised).30 
SA 260, Communication with Those Charged with Governance 
A18. Other  planning  matters that  it  may  be  appropriate to discuss with those charged with 
governance include: 
 Where  the  entity  has  an  internal  audit  function,  the  extent  to  which  the  auditor  will 
use  the  work  of  internal  audit,  and how  the  external  and  internal  auditors  can  best 
work  together  in  a  constructive  and  complementary  manner, and  the  nature  and 
extent of any planned use of internal auditors to provide direct assistance.31 
SA 300, Planning an Audit of Financial Statements 
Appendix 
Characteristics of the Engagement 
                                                 29 SA 610 (Revised), Using the Work of Internal Auditors, establishes limits on the use of direct assistance. It also acknowledges that the 
external auditor may be prohibited by law or regulation from obtaining direct assistance from internal auditors. Therefore, the use of direct 
assistance is restricted to situations where it is permitted. 30 SA 610 (Revised), Using the Work of Internal Auditors, establishes limits on the use of direct assistance. It also acknowledges that the 
external auditor may be prohibited by law or regulation from obtaining direct assistance from internal auditors. Therefore, the use of direct 
assistance is restricted to situations where it is permitted. 31 SA 610 (Revised), paragraphs 20 and 31.
21 
… 
 The  availability  of  the  work  of  internal  auditors  and  the  extent  of  the  auditor’s  potential 
reliance on such work, or internal auditors can be used to provide direct assistance.  
… 
SA 315, Identifying and Assessing the Risks of Material Misstatement Through 
Understanding the Entity and Its Environment 
6. The risk assessment procedures shall include the following: 
(a) Inquiries of management, of  appropriate  individuals  within  the  internal  audit  function  (if  
the function  exists),  and of others within the entity who in the auditor’s judgment may have 
information that is likely to assist in identifying risks of material misstatement due to fraud or 
error. (Ref: Para. A6-A13)   
………… 
23.  If the entity has an internal audit function,32 the auditor shall obtain an understanding of the 
following in order to determine whether the internal audit function is likely to be relevant to the audit: 
(a)  Tthe nature of the internal audit function’s responsibilities, and how the internal audit function fits 
in the entity’s its organisational structurestatus, ; and  
(b)  T the activities performed, or to be performed. , by the internal audit function. (Ref: Para. A101 
109 -A103 116) 
Inquiries of Management, the Internal Audit Function and Others Within the Entity (Ref: Para. 6(a)) 
A6. Much of the information obtained by the auditor’s inquiries is obtained from management and 
those responsible for financial reporting. Information  may  also  be  obtained  by  the  auditor  through 
inquiries  with  the  internal  audit  function,  if  the  entity  has  such  a  function,  and  others  within  the 
entity. 
A7. However, tThe auditor may also obtain information, or a different perspective in identifying risks of 
material misstatement, through inquiries of others within the entity and other employees with different 
levels of authority. For example: 
 …………………………… 
Inquiries  directed  toward  internal  audit  personnel  may  provide  information  about  internal  audit 
procedures  performed  during  the  year  relating  to  the  design  and  effectiveness  of  the  entity’s 
internal  control  and  whether  management  has  satisfactorily  responded  to  findings  from  those 
procedures. 
 ………………………….. 
 ……………………………. 
 ………………………. 
Inquiries of the Internal Audit Function 
A9. If  an  entity  has  an  internal  audit  function,  inquiries  of  the  appropriate  individuals  within  the 
function may provide information that is useful to the auditor in obtaining an understanding of the entity 
                                                 32 SA 610(Revised), “Using the Work of Internal Auditors”, paragraph 7(a)14(a), defines the term “internal audit function” for 
purposes of the SAs.
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and  its    environment,    and    in    identifying    and    assessing    risks    of    material    misstatement    at    the  
financial  statement    and    assertion    levels.    In    performing    its    work,    the    internal    audit    function    is  
likely    to    have  obtained  insight  into  the  entity’s  operations  and  business  risks,  and  may  have  findings 
based  on  its  work,    such    as    identified    control    deficiencies    or    risks,    that    may    provide    valuable  
input    into    the  auditor’s    understanding    of    the  entity,    the    auditor’s    risk    assessments  or  other  
aspects  of    the  audit.  The  auditor’s  inquiries  are  therefore  made  whether  or  not  the  auditor  expects  to 
use  the  work of  the  internal  audit  function  to  modify  the  nature  or timing,  or reduce  the  extent, of audit 
procedures to be performed.33  Inquiries  of  particular  relevance  may be  about  matters  the  internal  
audit  function  has raised with those charged with governance and the outcomes of the function’s own 
risk assessment process. 
A10.   If,  based  on  responses  to  the  auditor’s  inquiries,  it  appears  that  there  are  findings  that  
may    be  relevant    to  the  entity’s    financial  reporting  and  the  audit,  the  auditor  may  consider  it 
appropriate  to  read  related  reports  of  the  internal  audit  function.  Examples  of  reports  of  the  internal 
audit function that may be relevant include the function’s strategy and planning documents and reports 
that  have  been    prepared    for    management    or    those    charged    with    governance    describing    the  
findings  of  the internal audit function’s examinations. 
A11.   In  addition,  in  accordance  with  SA 240,34  if  the  internal  audit  function  provides  information  
to    the  auditor  regarding  any  actual,  suspected  or  alleged  fraud,  the  auditor  takes  this  into  account  in 
the auditor’s identification of risk of material misstatement due to fraud. 
A12.   Appropriate  individuals  within  the  internal  audit  function  with  whom  inquiries  are  made  are  
those  who,  in  the  auditor’s  judgment,  have  the  appropriate  knowledge,  experience  and  authority,  such 
as the  chief  internal  audit  executive  or,  depending  on  the  circumstances,  other  personnel  within  
the function.  The  auditor  may  also  consider  it  appropriate  to  have  periodic  meetings  with  these 
individuals. 
Considerations specific to public sector entities (Ref: Para 6(a)) 
A13.      Auditors  of  public  sector  entities  often  have  additional  responsibilities  with  regard  to  internal 
control and  compliance  with  applicable  laws  and  regulations.  Inquiries  of  appropriate  individuals  
in    the  internal  audit  function  can  assist  the  auditors  in  identifying  the  risk  of  material noncompliance 
with applicable  laws  and  regulations  and  the  risk  of  deficiencies  in  internal  control  over  financial 
reporting. 
A79.      The      auditor      may      also        consider        how      management      has      responded      to      the      findings      and 
recommendations  of  the  internal  audit  function  regarding  identified  deficiencies  in  internal  control relevant  
to  the  audit,  including  whether  and  how  such  responses  have  been  implemented,  and whether they have 
been subsequently evaluated by the internal audit function. 
The Entity’s Internal Audit Functions (Ref: Para 23)  
A109101.  If  the The entity’s has  an internal  audit  function,  obtaining  an  understanding  of  that 
function  contributes  to  the  auditor’s  understanding  of  the  entity  and its  environment,  including  internal 
control,  in  particular  the  role  that  the  function  plays  in  the  entity’s  monitoring  of  internal  control  over 
financial  reporting.  This  understanding,  together  with  the  information  obtained  from  the  auditor’s 
inquiries  in paragraph  6(a)  of  this  SA,  may  also  provide  information  that  is    directly  relevant  to  the 
auditor’s  identification  and  assessment  of  the  risks  of  material  misstatement.is  likely  to  be  relevant  to 
the  audit  if  the  nature  of  the  internal  audit  function’s  responsibilities  and  activities  are  related  to  the 
                                                 33 The relevant requirements are contained in SA 610 (Revised). 34 SA 240, paragraph 19.
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entity’s financial reporting, and the auditor expects to use the work of the internal auditors to modify the 
nature  or  timing,  or  reduce  the  extent,  of  audit  procedures  to  be  performed.  When  the  auditor 
determines that the internal audit function is likely to be relevant to the audit, SA 610 applies. 
A110102.  The  objectives and  scope of  an  internal  audit  function, and  therefore the  nature  of  its 
responsibilities  and  its  status  within  the  organisation, including  the  function’s  authority  and 
accountability, vary  widely  and  depend  on  the  size  and  structure  of  the  entity  and  the  requirements  of 
management and, where applicable, those charged with governance. The responsibilities of an internal 
audit function may include, for example, monitoring of internal control, risk management, and review of 
compliance  with  laws  and  regulations.  On  the  other  hand,  the  responsibilities  of  the  internal  audit 
function  may  be  limited  to  the  review  of  the  economy,  efficiency  and  effectiveness  of  operations,  for 
example, and accordingly, may not relate to the entity’s financial reporting. These  matters  may  be  set  
out  in  an  internal  audit charter or terms of reference. 
A111. The  responsibilities  of  an  internal  audit  function  may  include  performing  procedures  and 
evaluating  the  results  to  provide  assurance  to  management  and  those  charged  with  governance 
regarding  the  design  and  effectiveness  of  risk  management,  internal  control  and  governance 
processes.  If  so,  the  internal  audit function  may  play  an  important  role  in  the  entity’s  monitoring  of 
internal  control  over  financial  reporting.  However,  the  responsibilities  of  the  internal  audit  function  may 
be focussed on evaluating  the  economy,  efficiency  and  effectiveness  of  operations  and,  if  so,  the  
work  of  the function may not directly relate to the entity’s financial reporting. 
A112. The auditor’s inquiries of appropriate individuals within the internal audit function in accordance 
with  paragraph   6(a)   of    this    SA  help    the    auditor   obtain    an    understanding    of   the    nature   of    the  
internal  audit    function’s    responsibilities.    If    the    auditor    determines    that    the    function’s  
responsibilities    are  related    to    the    entity’s    financial    reporting,    the    auditor  may    obtain    further  
understanding    of    the  activities  performed,  or  to  be  performed,  by  the  internal  audit  function  by 
reviewing the internal audit function’s audit plan for the period, if any, and discussing that plan with the 
appropriate individuals within the function. 
A113103.  If the nature of the internal audit function’s responsibilities and assurance activities are 
related  to  the  entity’s  financial  reporting, the    auditor    may    also    be    able    to    use    the    work    of    the  
internal  audit  function to  modify  the  nature  or timing, or reduce  the   extent, of audit  procedures    to  be 
performed directly by the auditor in obtaining audit evidence. Auditors may be more likely to be able to 
use  the  work    of    an    entity’s    internal    audit    function    when    it  appears,    for    example,    based    on  
experience    in  previous   audits    or  the    auditor’s    risk   assessment    procedures,   that   the    entity   has  
an  internal  audit function  that  is  adequately  and  appropriately  resourced  relative  to  the  size  of  
the    entity    and    the  nature  of  its  operations,  and  has  a  direct  reporting  relationship  to  those  charged 
with governance.the external auditor’s consideration of the activities performed, or to be performed by, 
the internal audit function may include review of the internal audit function’s audit plan for the period, if 
any, and discussion of that plan with the internal auditors. 
A114. If,    based    on    the    auditor’s    preliminary    understanding    of    the    internal    audit    function,    the    auditor 
expects to use the work of the internal audit function to modify the nature or timing, or reduce the extent, of audit 
procedures to be performed, SA 610 (Revised) applies. 
A115. As  is  further  discussed  in  SA  610  (Revised),  the  activities  of  an  internal  audit  function  are  distinct  from  
other    monitoring    controls    that    may    be    relevant    to    financial    reporting,    such    as    reviews    of  management 
accounting  information that are  designed to contribute  to  how the  entity prevents  or detects misstatements. 
A116. Establishing   communications   with   the   appropriate   individuals   within   an   entity’s   internal   audit 
function      early      in      the      engagement,      and      maintaining      such      communications      throughout      the
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engagement, can facilitate effective sharing of information. It creates an environment in which the auditor can be  
informed of  significant  matters  that may come to the attention  of  the internal audit function when such matters 
may affect the work of the auditor. SA 200 discusses the importance of the auditor planning and performing the 
audit with  professional skepticism, including being alert to information  that  brings  into  question  the  reliability  
of  documents  and  responses  to  inquiries  to  be used as audit evidence. Accordingly, communication with the 
internal  audit  function  throughout  the  engagement    may    provide    opportunities    for    internal    auditors    to    bring  
such  information  to  the auditor’s  attention.  The  auditor  is  then  able  to  take  such  information  into  account  
in  the  auditor’s identification and assessment of risks of material misstatement.