An ITR-U updated return is the Income Tax Department’s route for voluntarily reporting income or tax that was missed after the ordinary filing and revision windows closed. It can be filed even when no original return was submitted for that assessment year. But it is not a general do-over: the updated return normally needs to increase the amount payable, and the later it is filed, the higher the additional tax.
The department’s current guidance says the window extends to 48 months from the end of the relevant assessment year. For financial year 2026–27, it lists AY 2025–26, 2024–25, 2023–24 and 2022–23 as the years within that window. The new Form ITR-U notified in 2026 also describes a 48-month period.
ITR-U is not the same as a revised return
A revised return corrects an omission or wrong statement while the ordinary revision window is still open. ITR-U is designed for a later voluntary correction.
That difference matters. An ITR-U generally cannot be used simply to:
- turn taxable income into a loss;
- reduce the tax liability shown in an earlier return; or
- claim a new refund or increase an existing refund.
The route may still cover a taxpayer who did not file an original return, as well as someone who filed an original, belated or revised return. The applicable ITR form — ITR-1 through ITR-7 — is used with the updated-return schedules Part A Gen_139(8A) and Part B ATI, according to the department’s return-filing guidance.
Who may be able to file
ITR-U can be useful where a taxpayer discovers income or tax that was left out of an earlier filing. Examples could include bank interest, capital gains, rent or another item that becomes visible after checking the records again.
Before deciding that income was omitted, compare the underlying statements and supporting documents. Our guide to AIS and Form 26AS explains what each record shows and why a mismatch needs investigation rather than an automatic copy-and-paste correction.
Eligibility is not automatic. The law contains restrictions connected with searches, surveys, certain communicated information, prosecution and assessment or reassessment proceedings. A taxpayer also cannot keep filing repeated updated returns for the same assessment year. Because the precise restriction can depend on the facts and on which law applies to the year, the portal’s current eligibility checks and the official instructions should be reviewed before payment.
A loss case needs extra care too. The department’s current explainer says an updated return may convert an earlier loss return into a return of income or reduce the loss, but it should not remain a return of loss. If the change affects carried-forward loss, unabsorbed depreciation or tax credits in later years, consequential updated returns may be required for those years.
What the additional tax costs
Section 140B sets the additional income tax as a percentage of the aggregate tax and interest payable on the updated return. The percentage is not applied to the omitted income itself.
| When ITR-U is filed | Additional income tax |
|---|---|
| After the ordinary belated/revised-return window, but within 12 months from the end of the relevant assessment year | 25% |
| After 12 months but within 24 months | 50% |
| After 24 months but within 36 months | 60% |
| After 36 months but within 48 months | 70% |
Surcharge and cess form part of “tax” for this calculation. Regular tax, applicable interest and fee may still be payable separately. The official section 140B text says the tax, interest, fee and additional income tax must be paid before the updated return is furnished, with proof of payment accompanying the return.
A simple illustration helps. Suppose the tax and interest attributable to the update come to ₹20,000 and the return falls in the 24-to-36-month band. The additional income tax would be 60% of ₹20,000, or ₹12,000. That is before considering any other fee or amount that the return computation may show. It is only an illustration; the portal calculation depends on the taxpayer’s actual income, credits, interest and earlier filing.
A practical filing checklist
1. Confirm the assessment year
Do not start with the financial year alone. Match the income to the correct assessment year, then check whether that year is still inside the 48-month limit.
The department’s own updated-return page contains some duplicated older wording near the top, but its current detailed section and the 2026 ITR-U notification use 48 months. Use the current form, portal and law for the relevant assessment year rather than relying on an old screenshot or summary.
2. Reconcile records and documents
Review AIS, Form 26AS, TIS, bank statements, broker statements, Form 16 or 16A, rent records and any earlier return. A line in AIS is a signal to reconcile, not proof that the figure belongs in the return exactly as displayed.
3. Use the correct ITR form
ITR-U is not a substitute for the applicable main return. Select the ITR form that fits the taxpayer and income type, then complete Part A Gen_139(8A) and Part B ATI. Include the details of any earlier return, including its acknowledgement number and filing date where applicable.
4. Compute and pay before filing
Work out the revised total income, tax, interest, fee and the additional-income-tax percentage for the filing band. Adjust only eligible taxes or credits supported by the records. Pay the amount first and retain the challan details, because proof of payment is part of the filing requirement.
5. File electronically and verify
Companies, political parties and specified audited taxpayers generally file with a digital signature certificate. Other taxpayers may use a DSC or electronic verification code, subject to the official rules and portal options. Save the acknowledgement and final computation after verification.
Common mistakes to avoid
Treating four years as a flat grace period. The cost rises from 25% to 70% across the four bands. Waiting can make the same correction materially more expensive.
Using ITR-U to chase a refund. The updated-return route is not normally available when the result is a lower liability, a new refund or a larger refund.
Ignoring connected years. A reduction in carried-forward loss, depreciation or tax credit can affect later returns.
Assuming filing settles every compliance issue. ITR-U is a voluntary-compliance mechanism, not a blanket immunity statement. Keep the source documents and obtain professional advice where a search, notice, foreign asset, disputed income or earlier proceeding is involved.
Skipping the wider tax-law context. India is transitioning to the Income-tax Act, 2025. Our explainer on the Income-tax Act, 2025 changes gives the broader background, but the filing decision should use the provisions, form and portal instructions applicable to the specific assessment year.
