Missed the ITR Deadline? Here's How to File a Belated Return for AY 2026-27

If the 31 July 2026 deadline has passed and you have not filed, you can still file, and you should. A return filed after the due date is called a belated return under Section 139(4), and for AY 2026-27 you have until 31 December 2026 to file it.

What a belated return is

A belated return is simply an income tax return submitted after your original due date. It is filed on the same e-filing portal, using the same ITR form, for the same assessment year. The difference is that a late fee and interest apply, and some benefits are no longer available.

How long you have

For income earned in FY 2025-26 (AY 2026-27), the belated return window closes on 31 December 2026. If you miss even that, you are not completely out of options, an updated return (ITR-U) can be filed for up to 48 months from the end of the assessment year, but with higher additional tax. So filing your belated return before 31 December is by far the cheaper path.

The late fee and interest

Under Section 234F the late fee is ₹1,000 if your total income does not exceed ₹5 lakh, and ₹5,000 in every other case. On top of that, interest under Section 234A is charged at 1% per month on any unpaid tax, from the due date until you actually pay. The longer you wait, the more the interest adds up, which is the single biggest reason to file now.

What you lose by filing late

Beyond the fee, a belated return costs you in ways people often do not expect. You cannot carry forward business losses or capital losses to set off against future gains (though house-property loss can still be carried forward). You can only file under the new tax regime, even if you had chosen the old regime and filed Form 10-IEA earlier. And a late or missing return raises your chances of a notice from the department.

How to file it right

Because a belated return locks you into the new regime and forfeits loss carry-forward, the calculations matter more, not less. A quick review by a Chartered Accountant makes sure you claim every deduction still available and pay the correct tax and interest, no more. Our Income Tax & ITR filing service handles belated returns end to end. Get a free consultation and we will file it correctly for you.