Revised ITR Deadline for AY 2026-27 Is 31 March 2027: Fee After 31 December Explained

Current development

The Income Tax Department has clarified a major change for Assessment Year 2026-27: a revised income-tax return can now be filed up to 31 March 2027, rather than the earlier 31 December cut-off. The Department's updated ITR guidance also confirms that a fee applies where the revised return is filed after 31 December 2026.

This gives taxpayers additional time to correct an already-filed return, but the extra three months are not cost-free. For AY 2026-27, a revised return filed from 1 January 2027 to 31 March 2027 attracts a fee under section 234-I: ₹1,000 where total income does not exceed ₹5 lakh and ₹5,000 where total income exceeds ₹5 lakh.

What is a revised return?

A revised return is used when a taxpayer has already filed an income-tax return but later discovers an omission, incorrect figure, wrong disclosure or another mistake that needs correction. It is not the same as an updated return. The Income Tax Department's ITR FAQs state that a taxpayer who discovers a mistake in an already-submitted return may re-submit the return as a revised return.

What is the revised-return deadline for AY 2026-27?

For AY 2026-27, the Income Tax Department states that the revised-return deadline has been extended to the end of the relevant assessment year, namely 31 March 2027. The statutory amendment made by the Finance Act, 2026 similarly permits a revised return to be furnished before the end of the relevant assessment year or before completion of assessment, whichever is earlier.

The phrase "whichever is earlier" matters. Taxpayers should not assume that 31 March 2027 is available in every possible case if the assessment has already been completed before that date.

Fee after 31 December 2026

The additional window from January to March comes with a specific fee. Income Tax Department validation rules for AY 2026-27 state that the fee for a revised return filed after 31 December 2026 is ₹1,000 where total income does not exceed ₹5 lakh and ₹5,000 where total income exceeds ₹5 lakh.

Accordingly, taxpayers who already know that a correction is required may prefer to revise the return before 31 December rather than wait for the final three-month window.

Revised return versus belated return

A revised return corrects a return that has already been filed. A belated return is used when the original return itself was not filed within the applicable due date. The two concepts should not be mixed merely because both can arise after the original filing deadline.

Tax professionals should first identify whether an original or belated return already exists for the assessment year and whether the intended filing is correcting that return. The correct filing section and portal option should then be selected.

Common situations where revision may be needed

- Income or interest was omitted from the original return.

- TDS, TCS or tax-payment details were reported incorrectly.

- A bank account, deduction or disclosure was entered incorrectly.

- Capital-gain or house-property information needs correction.

- A taxpayer selected an incorrect figure or schedule and later identified the error.

Practical checklist before filing a revised return

- Reconcile AIS, Form 26AS and tax records: identify the exact mismatch instead of changing figures without support.

- Use the correct assessment year: for AY 2026-27, the outer revised-return date is 31 March 2027, subject to earlier completion of assessment.

- Check the fee date: a filing after 31 December 2026 can trigger the section 234-I fee.

- Retain the original acknowledgement: the revised filing should be linked to the correct earlier return.

- E-verify the revised return: filing is not complete merely because revised data has been uploaded.

Key takeaway

AY 2026-27 gives taxpayers a longer correction window: revised returns may be filed up to 31 March 2027, subject to the return not being overtaken by completion of assessment. However, revisions filed after 31 December 2026 attract a fee of ₹1,000 for total income up to ₹5 lakh and ₹5,000 where total income exceeds ₹5 lakh. Taxpayers and CAs should therefore correct known errors early rather than treating 31 March as a routine target date.