Missed Income in ITR? File Updated Return (ITR-U) Before March 31 to Avoid Penalties

By Siddhi Jain | Mar 27, 2026, 22:13 IST

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.

What Is Updated ITR (ITR-U)?

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

Who Can File ITR-U?

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.

Key Deadline You Should Not Miss

👉 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.

Can You File ITR-U After Reassessment Starts?

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.

Difference Between ITR-U and Revised Return

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

Revised Return

Used to correct minor mistakes
Filed within a limited time after original return

ITR-U

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

Why Filing ITR-U Is Important

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.

Final Take

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.