You filed your ITR on time, then discovered a missed deduction or an incorrect entry. Under the old rules, your window to fix this closed on 31 December - the same deadline as the belated return. If you filed your belated return in late December, you had virtually no time to revise it. The Finance Act 2026 has fixed this by extending the revised return deadline from 9 months to 12 months from the end of the relevant tax year.
This guide explains what Section 263(5) of the Income Tax Act, 2025 now allows, who qualifies, what fee applies, how to file a revised return on the e-Filing portal, and how this change interacts with belated returns and updated returns (ITR-U).
What Is a Revised Return Under Section 263(5) and Why Was the Deadline Extended?
A revised return is an income tax return filed to correct any omission or wrong statement in an original or belated return, as permitted under Section 263(5) of the Income Tax Act, 2025 (corresponding to Section 139(5) of the Income Tax Act, 1961). It allows taxpayers to fix errors without penalties, subject to the prescribed time limit.
Previously, the time limit was 9 months from the end of the tax year - identical to the belated return deadline under Section 263(4). This meant that a taxpayer who filed a belated return in late December had no effective window to revise it. The Finance Bill 2026 recognised this gap and extended the window to 12 months.
For individuals managing income tax return filing, this extension provides a critical safety net. You now have until 31 March of the year following the tax year to correct mistakes - 3 full months beyond the belated return deadline.
Key Terms You Should Know
- Section 263(5) - Revised Return: Allows correction of omissions in a filed return. Time limit: 12 months from end of tax year (extended by Finance Act 2026 from 9 months).
- Section 263(4) - Belated Return: Return filed after due date but within 9 months. Subject to late filing fee under Section 428.
- Section 263(6) - Updated Return (ITR-U): For disclosing unreported income. 48-month window. Additional tax 25-70%.
- Section 428(b) - Fee for Delayed Revision: Rs 5,000 (income > Rs 5 lakh) or Rs 1,000 (income ≤ Rs 5 lakh) for revisions between 9 and 12 months.
- Tax Year: Unified 12-month April-March period replacing FY/AY under IT Act 2025. Tax Year 2026-27 = 01 April 2026 to 31 March 2027.
- Form 130: System-generated TDS certificate replacing Form 16 under IT Rules 2026.
Who Can File a Revised Return Under the New 12-Month Window?
Any person who has furnished an original return under Section 263(1) or a belated return under Section 263(4) can file a revised return, provided they discover an omission or wrong statement and file within 12 months from the end of the tax year or before completion of assessment.
- Salaried individuals who made errors in reporting salary, house property, capital gains, or deductions
- Business owners who incorrectly reported income or missed eligible deductions
- Taxpayers who filed under the wrong ITR form and received a defective return notice
- Individuals who forgot to report interest income, dividends, or mutual fund gains reflected in AIS/TIS
- Belated return filers who now have 3 extra months to correct their returns
If you followed our belated ITR filing guide and filed in December, you now have until 31 March to revise - something previously impossible.
Legal Framework: Old vs New Revised Return Provisions
| Aspect | Old Law (IT Act 1961) | New Law (IT Act 2025 + Finance Act 2026) |
|---|---|---|
| Governing Section | Section 139(5) | Section 263(5) |
| Time Limit | End of assessment year (31 March) or before assessment - effectively ~9 months | 12 months from end of tax year (31 March of following year) or before assessment |
| Fee for Late Revision | No fee | Rs 5,000 (income > Rs 5 lakh) or Rs 1,000 after 9 months - Section 428(b) |
| Can Revise Belated? | No - deadlines coincided | Yes - 3 extra months after belated deadline |
| Multiple Revisions? | Yes, within deadline | Yes, within 12 months |
| Terminology | Assessment Year / Previous Year | Tax Year (unified) |
| TDS Certificate | Form 16 | Form 130 |
| Transition | Section 139(5) amended effective 01 March 2026 for AY 2026-27 | Section 263(5) effective 01 April 2026 for TY 2026-27 onwards |
Note: For AY 2026-27, the revised return deadline extends to 31 March 2027 under the amended Section 139(5). From TY 2026-27 onwards, Section 263(5) of the new Act applies.
How to File a Revised Return on the e-Filing Portal: Step-by-Step Process
- Identify the error. Cross-verify with Form 130/Form 16, Form 26AS, AIS, and TIS. Common errors: missed interest income, incorrect deductions, wrong ITR form.
- Login to incometax.gov.in. Navigate to e-File > Income Tax Returns > File ITR. Select the relevant tax year.
- Select Revised Return as filing type. Choose Section 263(5) (or 139(5) for AY 2026-27). Enter the acknowledgement number and date of the original/belated return.
- Enter corrected details. Fill ALL schedules afresh - a revised return replaces the original entirely. Do not leave any schedule blank.
- Pay additional tax if applicable. Use challan ITNS 280. Interest under Section 234A/234B/234C applies on any shortfall from the original due date.
- Pay revision fee if filing after 9 months. Rs 5,000 or Rs 1,000 under Section 428(b).
- Submit and e-verify within 30 days. Use Aadhaar OTP, net banking, or DSC. The latest revised return replaces all previous versions.
Documents and Records Needed for Filing a Revised Return
- Original ITR acknowledgement number and date of filing
- Form 130 (new TDS certificate) or Form 16 (for AY 2026-27)
- Form 26AS - consolidated tax credit statement
- AIS (Annual Information Statement) - third-party reported transactions
- TIS (Taxpayer Information Summary) - department’s pre-fill summary
- Bank statements for the relevant year
- Capital gains statement from broker/depository
- Investment proofs - PPF, ELSS, insurance, NPS (if revising 80C/80D)
- Rent receipts and rental agreement (if revising HRA)
- Challan receipt for additional tax paid before filing
Revised Return Fee Structure Under Section 428(b)
The Finance Act 2026 introduced a fee for revised returns filed beyond 9 months:
| Filing Window | Income ≤ Rs 5 Lakh | Income > Rs 5 Lakh | Section |
|---|---|---|---|
| Within 9 months (by 31 Dec) | No fee | No fee | 263(5) |
| 9 to 12 months (Jan-Mar) | Rs 1,000 | Rs 5,000 | 428(b) read with 263(5) |
| After 12 months | Not permitted - use ITR-U | Not permitted - ITR-U with 25-70% additional tax | 263(6) |
Note: The fee is a flat amount per filing. A salaried individual earning Rs 12 lakh who discovers a missed Rs 50,000 deduction in February pays Rs 5,000 fee but saves approximately Rs 15,000+ in tax - a net gain.
Common Mistakes to Avoid When Filing a Revised Return
Mistake 1: Filling only the corrected field. A revised return replaces the original entirely. You must complete all schedules. Leaving a schedule blank treats that income as zero, triggering a mismatch notice.
Mistake 2: Confusing revised return with ITR-U. Revised return corrects an already-filed return within 12 months. ITR-U under Section 263(6) discloses unreported income for 48 months with 25-70% additional tax. See our guide on updated return (ITR-U) filing rules.
Mistake 3: Not paying tax before submitting. If revision results in higher liability, pay the difference before filing. Interest under Section 234B/234C applies from the original due date.
Mistake 4: Missing e-verification. A revised return must be e-verified within 30 days. Without verification, it is treated as not filed.
Mistake 5: Revising to reduce loss without understanding carry-forward impact. A reduced loss in the revised return is the final figure for carry-forward. The original loss amount is disregarded.
Penalties and Consequences of Missing the Revised Return Deadline
Once the 12-month window closes, you cannot file a revised return. Your only option is ITR-U under Section 263(6) with additional tax of 25-70%.
Under Section 234A, interest at 1% per month applies if the revision results in additional tax and it was not paid by the original due date.
Under Section 270A, a penalty of 50% (under-reporting) or 200% (misreporting) may apply if the error amounts to income understatement. Filing a revised return before detection is the safest way to avoid this.
If the error relates to carry-forward of losses, the loss must have been declared in a return filed within the original due date. Revising to claim a loss not in the original return does not restore carry-forward if the original was late.
How Revised Returns Connect with Belated Returns, Updated Returns, and Loss Carry-Forward
Section 263(5) operates within a layered framework. If you file an original return by the due date (31 July for ITR-1/2, 31 August for ITR-3/4, 31 October for audit cases), you can revise within 12 months. If you miss the due date, file a belated return by 31 December, then revise between January and March - a correction pathway that did not exist before Finance Act 2026.
The interaction with choosing the right ITR form is critical. If you filed ITR-1 but had capital gains requiring ITR-2, the 12-month window lets you file a revised return with the correct form.
Updated returns (ITR-U) under Section 263(6) are a separate track - for income never declared. The 48-month window and 25-70% additional tax make ITR-U costlier. A revised return (12 months, max Rs 5,000 fee) should always be preferred over ITR-U when within the window.
Revised Return vs Updated Return vs Belated Return: Key Differences
| Feature | Revised Return | Updated Return (ITR-U) | Belated Return |
|---|---|---|---|
| Section (IT Act 2025) | 263(5) | 263(6) | 263(4) |
| Purpose | Correct errors in filed return | Disclose unreported income | File after missing due date |
| Time Limit | 12 months from end of tax year | 48 months from end of FY after tax year | 9 months from end of tax year |
| Fee / Additional Tax | Rs 1,000 or Rs 5,000 (after 9 months) | 25% to 70% of tax + interest | Rs 1,000 or Rs 5,000 (late fee) |
| Can Claim Refund? | Yes | No | Yes |
| Loss Carry-Forward? | Preserves if original was timely | Cannot create loss return | Business/capital losses denied |
| Multiple Filings? | Yes | Only once per year | One per year |
| Requires Prior Return? | Yes | No | No |
Key Takeaways
The Finance Act 2026 extended the revised return deadline under Section 263(5) from 9 to 12 months from the end of the relevant tax year, effective from Tax Year 2026-27 onwards.
This solves a long-standing problem: taxpayers who filed belated returns near the December deadline previously had zero time to revise, as both deadlines coincided at 9 months.
A fee of Rs 5,000 (income above Rs 5 lakh) or Rs 1,000 (income up to Rs 5 lakh) under Section 428(b) applies only for revised returns filed after 9 months - the first 9 months remain fee-free.
Revised returns should always be preferred over ITR-U when within the 12-month window, as the maximum fee is Rs 5,000 compared to 25-70% additional tax under ITR-U.
The same amendment applies to Section 139(5) of IT Act 1961, effective 01 March 2026, meaning the extended deadline also covers AY 2026-27 returns.
Need Help Revising Your Income Tax Return?
The extended 12-month window under Section 263(5) gives you time to correct errors, but the process requires accurate recalculation, proper documentation, and correct filing on the e-Filing portal.
Explore our professional ITR filing support for expert assistance with revised returns, tax computation, and compliance.
For queries, reach out at +91 945 945 6700 or WhatsApp us directly.
