Overview
The introduction of Form No. 183 under the Income Tax Act, 2025 marks a significant compliance requirement for businesses engaged in petroleum and natural gas operations in India. This audit report is essential for claiming deductions under Section 49 and ensures transparency in fund utilization and profit reporting.

What is Form 183?
Form No. 183 is an audit report filed under Section 49 read with Rule 291 of the Income-tax Act, 2025. It certifies deductions claimed by businesses engaged in:
- Prospecting petroleum
- Extracting natural gas
- Producing petroleum or gas in India
The report validates that deductions claimed (up to 20% of profits) are accurate and compliant.
Who Needs to File Form 183?
- Assessees involved in oil & gas exploration/production
- Taxpayers claiming deduction under Section 49
- Audit must be certified by a qualified Accountant
Is Filing Mandatory?
Yes. Furnishing of Form No. 183 is mandatory where deduction under Section 49 is claimed. In absence of this audit report, the deduction would not be allowed.
Due Date for Filing
Form 183 must be filed:
- Annually
- One month prior to the due date for furnishing the return of income u/s 263(1) of the Income Tax Act, 2025.
Key Documentation Required
To prepare Form 183, the following are essential:
a. Complete books of account relating to the business of prospecting, extracting, or producing petroleum, natural gas, or both in India.
b. A copy of the audit report, if the accounts of the business have already been audited under any other law.
c. The audited or provisional Balance Sheet and Profit & Loss Account
d. Evidence of deposits made into the "specified account" (Special Account or Site Restoration Account) before the end of the tax year.
e. Details of any interest credited to the specified account during the tax year.
f. Statements showing details of withdrawals made, including the date, amount and the specific purpose of each withdrawal.
g. Proof of utilization for funds withdrawn, including documents related to the purchase of assets or expenditures incurred as per the approved scheme.
h. Information regarding the sale or transfer of any asset acquired under the scheme, specifically if transferred within eight years of acquisition.
i. A formal computation of the deduction claimed under Section 49 to verify that it does not exceed 20% of the profits from such business as computed under the head Profits and gains of business or profession.
Structure of Form 183
The form consists of:
- Part A: Audit report where accounts are audited under any other law
- Part B: Audit report where accounts are not audited under any other law
- Part C: Particulars of the assessee
- Part D: Statement of claim of deduction under Section 49
Filing Process Explained
a. The assessee must first deposit eligible amounts into a "specified account," which refers to a Special Account with the State Bank of India, or a Site Restoration Account approved by the Ministry of Petroleum and Natural Gas, within the timelines prescribed by the scheme.
b. The assessee's business accounts must be audited by an "Accountant" as specifically defined in section 515(3)(b) of the Income-tax Act, 2025.
c. The accountant examines the books of account and prepares the statement of particulars, which includes verifying deposits, interest credited during the tax year, and the purposes and utilization of withdrawals.
d. The accountant furnishes the audit report online as an e-form (Form No. 183) via the designated e-filing portal.
e. It is mandatory for the accountant to provide their Membership Number, Firm Registration Number, and a Unique Document Identification Number (UDIN) within the form.
f. The accountant must verify the submitted form electronically using their Digital Signature Certificate (DSC).
g. The statutory filing process is finalized only after the taxpayer logs into the portal and "Accepts" the form furnished by the Accountant.
Why Form 183 is Important
- Acts as statutory proof for deduction eligibility
- Ensures compliance with tax provisions
- Prevents misuse of funds or premature asset transfers
- Validates deduction limits and income calculations

