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Missed the ITR Deadline? How to File a Belated Return Before 31 December 2026

Missed the 31 July or 31 August deadline for AY 2026-27? File a belated return by 31 December 2026. Late fee, regime rules, losses and the steps, explained.

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Key takeaways

  • You can still file your ITR for FY 2025-26 (AY 2026-27) as a belated return under section 139(4) until 31 December 2026.
  • The late fee under section 234F is ₹5,000, or ₹1,000 if your total income is up to ₹5 lakh, plus 1% a month interest on any unpaid tax.
  • A belated return is filed under the new tax regime: the old regime can only be chosen in a return filed by the original due date.
  • Business and capital losses cannot be carried forward from a belated return.
  • Miss 31 December too, and the only route left is an updated return (ITR-U) with 25%–70% extra tax.

Can you still file your ITR for AY 2026-27?

Yes. The original due dates for income earned in FY 2025-26 were 31 July 2026 if you have no business income and 31 August 2026 for non-audit business or professional income. If you missed yours, section 139(4) lets you file a belated return until 31 December 2026, or until your assessment is completed if that happens first.

Tax-audit cases have a later original date (extended by CBDT to 21 November 2026), so they are not belated yet. See our ITR filing 2026 guide for every due date this year.

What filing late costs

ChargeAmountApplies when
Late fee (section 234F)₹5,000Return filed after the due date
Late fee, small taxpayers₹1,000Total income up to ₹5 lakh
Interest (section 234A)1% a monthOn tax still unpaid after the due date

If your income is below the basic exemption limit and you are filing only to claim a refund, the late fee generally does not apply. Pay the fee and any tax due through e-Pay Tax on the portal before you submit the return, so it shows up in the return.

What you lose by filing late

The old tax regime

The choice of the old regime has to be made in a return filed by the original due date. A belated return is therefore taxed under the new regime. If you planned to claim large 80C, 80D, HRA or home-loan interest deductions, run the numbers before you file: our tax advisory team can tell you what the switch costs.

Carrying forward losses

Business losses and capital losses (for example, from shares or property) can be set off within the same year, but they cannot be carried forward to future years from a belated return. Losses from house property and unabsorbed depreciation are the exceptions.

Interest on your refund

Refund interest on a belated return runs from the date you file, not from 1 April. Every month you wait costs you interest the department would otherwise pay.

How to file a belated return

  1. Download your AIS and Form 26AS and match them with your Form 16, bank interest and capital-gains statements.
  2. Pay the late fee and any tax due through e-Pay Tax on incometax.gov.in.
  3. Log in, choose File Income Tax Return, select AY 2026-27 and the filing type 139(4) – Belated.
  4. Pick the right ITR form, check the pre-filled data, add the fee and tax challans, and submit.
  5. E-verify within 30 days with an Aadhaar OTP. An unverified return is treated as never filed.

If you miss 31 December too

After 31 December 2026 you cannot file a normal or belated return for AY 2026-27. The remaining option is an updated return (ITR-U), allowed within 48 months from the end of the assessment year. It comes with 25% to 70% additional tax depending on how late you are, and it cannot be used to claim a refund or report a loss. If you have already received a notice for the year, see what each income tax notice means.

Short on time? Send your documents on WhatsApp and we'll file your belated return, usually within one working day. ITR filing starts at ₹1,200.

Frequently asked questions

Can I file my ITR after the due date for AY 2026-27?

Yes. If you missed the 31 July 2026 deadline (no business income) or the 31 August 2026 deadline (non-audit business income), you can file a belated return under section 139(4) until 31 December 2026, with a late fee.

What is the late fee for filing ITR after the due date?

The late fee under section 234F is ₹5,000. If your total income is up to ₹5 lakh, it is capped at ₹1,000. Interest under section 234A of 1% a month also applies on any tax still unpaid after the original due date.

Can I choose the old tax regime in a belated return?

Generally no. The option to use the old regime must be exercised in a return filed by the original due date under section 139(1), so a belated return is taxed under the new regime. Business owners must also have filed Form 10-IEA by the due date to opt out.

Can I revise a belated return?

Yes. A belated return can be revised under section 139(5). For AY 2026-27, the window to revise runs until 31 March 2027 following the Finance Act, 2026 changes, or until assessment is completed if that is earlier.

What happens if I miss the 31 December 2026 deadline?

You can no longer file a normal or belated return for AY 2026-27. You can file an updated return (ITR-U) within 48 months from the end of the assessment year, paying 25% to 70% additional tax, but not to claim a refund or report a loss.

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