The Income-tax Act, 2025, as amended by the Finance Act, 2026, lays down a structured framework for rectification of mistakes, assessment of income, reassessment of escaped income and appeals against tax orders. The Income Tax Department’s latest reference material provides a consolidated overview of these provisions and the timelines taxpayers need to keep in mind.
For taxpayers and tax professionals, understanding these provisions is important because an incorrect assessment, an adjustment in an intimation or an adverse rectification order can have a direct impact on tax liability, refunds and further litigation.
Rectification of Mistakes Under Section 287
Section 287 permits an Income-tax authority to rectify a mistake that is apparent from the record. The power can be exercised by the authority on its own initiative or when the mistake is brought to its notice by the assessee, deductor or collector.
Rectification can cover an order passed by the authority, an intimation issued after processing of an income-tax return, and an intimation issued after processing of a TDS or TCS statement.
However, an authority cannot rectify a part of an order that has already been considered and decided in appeal or revision. A mistake that was not the subject matter of the appeal or revision can still be rectified by the authority that passed the original order.
Time Limit for Rectification
For orders passed by the Assessing Officer, CIT(A) or JCIT(A), a rectification order generally has to be passed within four years from the end of the financial year in which the order sought to be rectified was passed.
Where the taxpayer, deductor or collector makes the rectification application, the authority is required to pass the rectification order within six months from the end of the month in which the application is received.
For ITAT orders, rectification is required to be made within six months from the end of the month in which the order was passed. Where rectification is prejudicial to the assessee, an opportunity of being heard must be provided.
Understanding Income-tax Assessment
Assessment is the process through which the Income Tax Department examines the income reported by a taxpayer and determines the correct taxable income and corresponding tax liability.
The document identifies four major forms of assessment:
- Summary assessment under Section 270(1)
- Scrutiny assessment under Section 270(10)
- Best judgment assessment under Section 271
- Income escaping assessment under Section 279
Summary Assessment Under Section 270(1)
Summary assessment, commonly referred to as an intimation, is carried out through computerized processing at the Centralized Processing Centre (CPC), Bengaluru.
At this stage, the return is examined for matters such as arithmetical errors, incorrect claims apparent from the information provided, certain inconsistencies with earlier tax-year information and specified disallowances.
Before making an adjustment, the taxpayer must be given an opportunity to explain or rectify the issue within 30 days from the date of issue of the intimation. The response can be submitted electronically through the taxpayer’s e-filing account.
Where tax or interest is payable, the intimation is treated as a notice of demand, and the taxpayer is generally required to make payment within 30 days of receiving the intimation.
The document states that such intimation is required to be issued within nine months from the end of the financial year in which the return is furnished, subject to the conditions specified.
Scrutiny Assessment Under Section 270(10)
Scrutiny assessment involves a detailed examination of the income-tax return. While all returns undergo preliminary processing, only a specified percentage are subsequently selected for scrutiny.
Scrutiny may be either limited or complete. In limited scrutiny cases, the issues selected for examination are communicated to the taxpayer and the enquiry remains confined to those specified matters.
The assessment under Section 270(10), along with best judgment assessment and reassessment in specified cases, is required to be conducted through a faceless mechanism as prescribed.
The Assessing Officer must serve the scrutiny notice within three months from the end of the financial year in which the return is filed.
The assessment generally has to be completed within one year from the end of the financial year succeeding the relevant tax year. Where a reference is made to the Transfer Pricing Officer, the available assessment period is extended by 12 months.
Best Judgment Assessment Under Section 271
Best judgment assessment comes into play where the taxpayer does not cooperate with the assessment proceedings or where the correct taxable income cannot be determined from the available books and information.
The document categorises best judgment assessment into compulsory and discretionary assessments.
A compulsory best judgment assessment may arise where the taxpayer fails to file a valid return, fails to comply with a notice requiring filing of a return, fails to produce evidence or documents, fails to comply with directions relating to audit or inventory valuation, or does not rectify defects in the return within the prescribed period.
The assessment under Section 271 is generally required to be completed within one year from the end of the financial year succeeding the relevant tax year, subject to the specified extensions and special cases.
Income Escaping Assessment Under Section 279
Reassessment provisions apply where income chargeable to tax has escaped assessment and the Assessing Officer follows the prescribed procedure.
The Assessing Officer may assess or reassess escaped income and recompute relevant losses, depreciation, allowances or deductions. Importantly, income that comes to the AO’s notice during the reassessment proceedings may also be assessed or reassessed, subject to the provisions of the Act.
Information indicating possible escaped income may arise from the CBDT’s Risk Management Strategy, audit objections, information received under an agreement, specified information schemes, court or Tribunal orders, survey information and certain findings or directions of authorities.
Before issuing the reassessment notice in the ordinary course, the Assessing Officer is required to provide the taxpayer an opportunity of being heard and consider the taxpayer’s response.
Reassessment Notice Time Limits
The document provides different time limits depending on the amount of income alleged to have escaped assessment:
| Escaped Income | Time Limit for Notice under Section 280 |
|---|---|
| Less than ₹50 lakh | Within 4 years and 3 months from the end of the relevant tax year |
| ₹50 lakh or more | Within 6 years and 3 months from the end of the relevant tax year |
The corresponding show-cause notice under Section 281 is subject to shorter periods specified in the document.
Once reassessment proceedings are initiated, taxpayers should respond to notices, provide the required information and participate in the proceedings. The document states that reassessment under Section 279 must generally be completed within one year from the end of the financial year in which the notice was served.
Right to Appeal Against Income-tax Orders
Taxpayers who are aggrieved by an assessment, reassessment, rectification or other specified order can pursue the appellate mechanism provided under the Income-tax Act, 2025.
The first appellate authorities are the Joint Commissioner of Income-tax (Appeals) and Commissioner of Income-tax (Appeals). Specified orders, including assessment orders, reassessment orders, certain intimations, penalty orders and rectification orders, can be challenged before the appropriate appellate authority.
30-Day Time Limit for First Appeal
As per Section 358(3), an appeal is generally required to be presented within 30 days.
For assessment or penalty matters, the period is counted from the date of service of the notice of demand. In other cases, it runs from the date on which the relevant order or intimation is served.
The prescribed documents include the appeal form, memorandum of appeal, statement of facts, grounds of appeal, the order being challenged, notice of demand and relevant fee-payment details.
Appeal Before ITAT
The Income Tax Appellate Tribunal (ITAT) is the second appellate authority. Appeals against orders of the JCIT(A) or CIT(A) generally lie before the ITAT, while certain assessment, revision, penalty and rectification orders can also be challenged directly before the Tribunal as specified under the Act.
An appeal to the ITAT is required to be filed within two months from the end of the month in which the relevant order is communicated.
A cross-objection can be filed in Form 116 within 30 days of receiving notice of the appeal.
The document also specifies different filing fees depending on the assessed income and nature of the application. A rectification application before the ITAT carries a fee of ₹50, while a stay-of-demand application carries a fee of ₹500.
Appeal to High Court
The High Court is the third appellate authority. An appeal from an ITAT order can be filed where the High Court is satisfied that the case involves a substantial question of law.
The appeal is required to be filed within 120 days from the date on which the relevant order is received. The memorandum of appeal must specifically state the substantial question of law involved.
Appeal to Supreme Court
The Supreme Court is the final appellate authority under the framework outlined in the document. An appeal against a High Court order can be filed before the Supreme Court where the High Court certifies that the case is fit for appeal.
No specific time limit has been prescribed in the document for filing an appeal before the Supreme Court.
What Taxpayers Should Keep in Mind
The provisions relating to rectification, assessment and appeals make timely action particularly important. Taxpayers should carefully review every intimation, assessment order, reassessment notice and rectification order received from the Income Tax Department.
Where an apparent mistake exists, rectification may provide a mechanism for correcting the order. Where the taxpayer disagrees with an assessment or other appealable order, the prescribed appellate route and limitation period need to be followed.
Most importantly, taxpayers and professionals should maintain copies of orders, notices, statements of facts, grounds of appeal, challans and supporting documents so that any subsequent rectification or appellate proceeding can be handled efficiently.
The Income Tax Department document is stated to contain the provisions of the Income-tax Act, 2025 as amended by the Finance Act, 2026, and itself advises readers to verify the provisions against the relevant Acts, Rules and Notifications.
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