ITR Due Dates and the Compliance Calendar for 2026-27

Income tax deadlines changed this year. The Finance Act, 2026 moved some due dates and gave more time to revise returns. Here is where things stand for the return you should already have filed (FY 2025-26) and for the current year (tax year 2026-27).

Returns for FY 2025-26 (AY 2026-27)

Who	Original due date	Status
Salaried / no business income (ITR-1, ITR-2)	31 July 2026	Passed
Business or profession, no audit (ITR-3, ITR-4)	31 August 2026. Moved from 31 July by the Finance Act, 2026, and permanent from this year	Passed
Audit cases (companies, firms and individuals needing audit)	Extended by CBDT to 21 November 2026 (audit report by 21 October 2026)	Open
Transfer pricing cases	30 November 2026	Open
Belated return	31 December 2026	Open
Revised return	31 March 2027. The window was extended from 9 to 12 months after the end of the tax year	Open
Updated return (ITR-U)	Up to 48 months, with additional tax	Open

Missed the deadline? File a belated return by 31 December 2026

Late fee: ₹5,000, or ₹1,000 if total income is ₹5 lakh or less. No fee applies if income is below the basic exemption limit.
Interest: 1% per month on unpaid tax from the due date.
What you lose: you cannot carry forward most losses (business, capital losses), and a belated return is taxed under the new regime if you have no business income.
After 31 December 2026, you can only file an updated return, which comes with additional tax.

Made a mistake? Revise by 31 March 2027

You can now revise an original or belated return up to 31 March 2027, or until the assessment is completed if that is earlier. A fee applies to revisions filed after 31 December: ₹5,000, or ₹1,000 if income is below ₹5 lakh.

Advance tax: tax year 2026-27

If your tax for the year (after TDS) is ₹10,000 or more, pay it in instalments:

Due date	Cumulative amount
15 June 2026	15%
15 September 2026	45%
15 December 2026	75%
15 March 2027	100%

Presumptive-scheme taxpayers can pay 100% by 15 March. Resident senior citizens without business income are exempt. Late or short payment means 1% per month interest.

Returns for tax year 2026-27 (filed in 2027)

This is the first year under the Income-tax Act, 2025:

Who	Due date
No business income	31 July 2027
Business or profession, no audit	31 August 2027
Tax audit report	30 September 2027
Audit cases	31 October 2027
Transfer pricing cases	30 November 2027
Belated return	31 December 2027
Revised return	31 March 2028

Other key dates for businesses and employers

Compliance	Due date
TDS deposit (non-government deductors)	7th of the following month (30 April for March)
Quarterly TDS returns	31 July, 31 October, 31 January, 31 May
TDS certificate to employees (Form 130, formerly Form 16)	15 June
GST returns: GSTR-1 / GSTR-3B (monthly filers)	11th / 20th of the following month

Frequently asked questions

Is the ITR due date extended this year?
For audit cases, yes: CBDT extended it to 21 November 2026. For other taxpayers the dates have passed, but a belated return can be filed until 31 December 2026.

Can I still choose the old regime in a belated return?
If you have no business income, the old regime can be chosen only in a return filed by the due date. A belated return is taxed under the new regime.

What if I miss 31 December 2026 as well?
You can file an updated return (ITR-U), but you must pay additional tax of 25% to 70% of the tax and interest due, depending on how late you are. Refunds cannot be claimed through an updated return.

Haven’t filed yet? Garvita Jain & Co. can file your belated or revised return before the deadline and deal with any notices. Contact us here, or at contact@garvitajainandco.com or +91 98678 16597.

This article is general information based on the law as of October 2026 and is not professional advice.

Sources

Official

Professional / CA publications