Taxpayers who made mistakes in their income tax filings or forgot to declare certain income still have a final opportunity to fix it. The government allows individuals to submit an updated return using ITR-U, but the deadline to do so is March 31, 2026.

This provision, introduced under Section 139(8A) of the Income Tax Act, helps taxpayers correct errors, disclose missed income, or even file a return if they initially failed to do so.

The updated return, commonly known as ITR-U, is a special facility provided by the Income Tax Department of India. It enables taxpayers to voluntarily fix discrepancies in their previously filed returns.

You can use ITR-U to:

• Declare income that was missed earlier


• Correct incorrect details in filed returns


• File a return even if you missed the original deadline

Any taxpayer can file an updated return under Section 139(8A), including those who:

• Did not file their original ITR on time


• Made errors in previously filed returns


• Want to disclose additional income voluntarily

For example, returns related to Assessment Year 2021–22 can be updated until March 31, 2026.

👉 Last date to file updated return: March 31, 2026

After this deadline, taxpayers will lose the opportunity to revise or update their returns for the eligible assessment year.

Yes, recent changes announced in the Union Budget 2026 have made it possible to file an updated return even after reassessment proceedings begin.

However, there’s a catch:

• You must pay an additional penalty of 10%


• Applicable tax and interest must also be cleared

This ensures compliance while giving taxpayers a second chance to correct their filings.

Many taxpayers confuse ITR-U with a revised return, but both serve different purposes:

• Used to correct minor mistakes


• Filed within a limited time after original return

• Used when income was not disclosed at all


• Can be filed up to 48 months from the end of the assessment year


• Requires payment of extra tax and penalty

Filing an updated return can help you:

• Avoid heavy penalties


• Stay compliant with tax laws


• Reduce chances of legal notices


• Maintain a clean financial record

Experts suggest that voluntarily correcting mistakes is always better than waiting for tax scrutiny.

The option to file an updated return via ITR-U is a valuable opportunity for taxpayers to fix past errors and stay compliant. With the March 31 deadline approaching fast, it is crucial to review your previous filings and act quickly if needed.

Even though it may involve paying extra tax or penalties, it is far better than facing legal complications later.