ITR-U: Updated Return Guide — Who Can File, Deadline, and Additional Tax

ITR-U was introduced to give taxpayers a way to voluntarily correct an omission or error after the normal revised-return deadline has already passed — a genuinely useful option, but one with real restrictions that surprise people expecting it to work like a normal revised return.

What Is ITR-U?

An Updated Return under Section 139(8A) allows a taxpayer to file a return they missed entirely, or update a previously filed return, within 48 months from the end of the relevant assessment year — far beyond the normal window for a belated or revised return (which closes much sooner, typically by the end of the assessment year itself). It exists specifically to let taxpayers voluntarily correct under-reported income before the department catches it through other means.

The Critical Restriction: Only to Increase Income

This is the single most important thing to understand about ITR-U — it can only be used to declare additional income and pay additional tax. It cannot be used to:

• Claim a refund, or increase a refund already claimed
• Reduce total tax liability compared to the original/previous return
• Reduce a carried-forward loss
• Report a fresh loss where none existed before

If you overpaid tax or missed a legitimate deduction that would reduce your liability, ITR-U is not the mechanism — that requires a rectification request or, where the timeline still permits, a revised return instead. ITR-U exists purely for voluntary disclosure of under-reported income.

Additional Tax Rates by Filing Window

When filed (from end of relevant AY)	Additional tax on tax+interest due
Within 12 months	25%
12–24 months	50%
24–36 months	60%
36–48 months	70%

This additional tax is charged on top of the regular tax and interest that would otherwise be payable — it's a genuine cost of delay, structured specifically to reward filing sooner rather than later. Waiting the full 48 months makes correction meaningfully more expensive than doing it in year one.

Who Cannot File ITR-U

ITR-U isn't available in several specific situations:

• A search, survey, or requisition proceeding has already been initiated against the taxpayer for that year
• Assessment/reassessment/revision proceedings are pending or completed for that assessment year
• The department already has information about the undisclosed income through specific information-sharing agreements or other proceedings
• A prosecution has been initiated for that assessment year before the ITR-U filing date

ITR-U is designed as a voluntary-disclosure route, not an escape hatch once the department is already actively looking into a specific year.

Common Reasons People File ITR-U

• Missed reporting a second Form 16 (job change mid-year) in the original return
• Forgot to report interest income, dividend income, or capital gains that appeared later in AIS/Form 26AS
• Never filed a return at all for a year where they were actually liable, and it's since become clear from AIS data or a notice-triggering event
• Under-reported foreign income or assets discovered later

How to File

ITR-U is filed using the same ITR form applicable to that assessment year (ITR-1 through ITR-7 as relevant), with an additional Form ITR-U schedule computing the additional tax payable. It must be filed along with proof of payment of the additional tax and applicable interest — it's not a "file now, pay later" process.

If you've realised income was missed in an earlier year's return, filing sooner materially reduces the additional tax cost — our ITR filing service handles ITR-U computation and filing for past assessment years still within the window.