Late Return Calculator — Section 234F (428 of the 2025 Act) Fee, 234A (423 of the 2025 Act) Interest and the Cost of an Updated Return

The rules applied

The due date is 31 July following the financial year for ITR-1 and ITR-2, 31 August for business and professional returns (ITR-3/ITR-4) not liable to tax audit — a permanent change made by the Finance Act 2026 from AY 2026-27 — 31 October for audit cases and companies, and 30 November for transfer-pricing cases (for AY 2025-26 CBDT extended the non-audit and audit dates to 16 September 2025 and 10 December 2025, and the tool uses those dates). A return filed after the due date but by 31 December of the assessment year is a belated return under section 139(4) (263 of the 2025 Act) (a return already filed can be revised under section 139(5) up to 31 March of the following year, from AY 2026-27): late fee under section 234F of ₹5,000, or ₹1,000 where total income does not exceed ₹5 lakh, and nil where total income is within the basic exemption limit (₹4 lakh under the new regime from AY 2026-27, ₹3 lakh earlier) and no other condition makes filing compulsory; interest under section 234A at 1% a month or part of a month on tax unpaid at the due date; and no carry-forward of business or capital losses. After 31 December the only route is an updated return (ITR-U) under section 139(8A), within 48 months of the end of the assessment year, with additional tax under section 140B (267 of the 2025 Act) of 25% of the tax and interest (the section 234F fee is paid in addition) if filed within 12 months, 50% within 24, 60% within 36 and 70% within 48 months; it cannot be used to reduce tax, claim a refund or increase a loss, and is not available once a search or reassessment has started. Read our note on due dates.

Disclaimer. These calculators are provided for general information only. They apply the Indian and UAE tax rules as we understand them for the year stated and are not legal, tax or professional advice, and they do not create a client relationship. Your actual liability depends on your complete facts, on documents we have not seen and on law that changes; please confirm any figure with us before relying on it or acting on it. I. H. Khan and Associates accepts no liability for decisions taken on the basis of these tools. Nothing you enter leaves your browser unless you choose to send the result to us. Section numbers are those of the Income-tax Act, 2025, in force from 1 April 2026, with the familiar 1961 Act number in brackets; the rules are unchanged — see our section map.