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Income Tax· Updated Jul 2026· 5 min read· By CA Sumit Chandwani· AY 2026-27

ITR-U: How to File an Updated Return up to 48 Months Late

If you missed even the belated-return window, the updated return, ITR-U, is your last legal route to come clean. It is costly, but far better than an unfiled return sitting with the department.

What's in this guide
  1. What ITR-U is
  2. Who can and cannot file
  3. The additional tax
  4. How to file ITR-U

Sometimes the original and belated deadlines both pass, an old year never got filed, or income was under-reported. For these cases the law provides the updated return, ITR-U, under Section 139(8A). It lets you voluntarily set the record straight long after the normal windows close.

What ITR-U is

ITR-U is a mechanism to file a return, or correct one, well after the due date. For any assessment year, you can file an updated return up to 48 months from the end of that assessment year. It is designed to encourage voluntary compliance rather than leave income unreported.

Who can and cannot file it

ITR-U is available to most taxpayers who need to report additional income or file a missed return. It cannot be used to reduce your tax, claim or increase a refund, or report a loss, it is only for situations that result in additional tax. If a case is under assessment or search proceedings, restrictions apply.

The additional tax

The trade-off for this long window is cost. ITR-U requires payment of the normal tax and interest plus an additional amount that increases the later you file, stepping up over the 48-month period. This is why filing a belated return before 31 December is always cheaper than waiting for ITR-U, but ITR-U is still far better than leaving a return unfiled.

How to file ITR-U

Because ITR-U involves computing back-tax, interest and the additional levy correctly, and because errors can trigger scrutiny, it is worth having a professional handle it. Our Income Tax & ITR filing service can assess whether ITR-U applies to your case and file it accurately. Get a free consultation.

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Frequently asked questions

When is a tax audit mandatory under Section 44AB?
For a business, when turnover exceeds ₹1 crore, or ₹10 crore if cash transactions stay under 5% of both receipts and payments. For a professional, when gross receipts exceed ₹50 lakh. It is also mandatory if you opt out of a presumptive scheme like 44AD or 44ADA and declare profits below the presumptive rate while your income exceeds the basic exemption limit.

Frequently asked questions

What is ITR-U?
ITR-U is an updated return under Section 139(8A) that lets eligible taxpayers file or correct a return up to 48 months from the end of the relevant assessment year, on payment of additional tax.
Can I claim a refund using ITR-U?
No. ITR-U cannot be used to claim or increase a refund, reduce tax, or report a loss. It is only for cases that result in additional tax payable.
How much extra tax does ITR-U cost?
In addition to the normal tax and interest, ITR-U carries an extra amount that increases the later you file, stepping up over the 48-month window.
Is ITR-U better than not filing at all?
Yes. Filing ITR-U regularises your position voluntarily, which is far better than an unfiled return that can attract notices, penalties and scrutiny.

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