Income tax calendar for the tax year 2026-27

For the tax year 2026-27 (1 April 2026 to 31 March 2027), the key dates are advance tax on 15 June, 15 September, 15 December and 15 March, filing opening on 01-Apr-2027, the main due date 31-Jul-2027, and the last date for a belated or revised-with-fee return at 31-Dec-2027. The CBDT can change any of them.

The dates are computed from TaxCare's rule set for the tax year 2026-27, which repeats the 2025-26 rules and is provisional. They have not been signed off against the Income-tax Act, 2025. Check for any CBDT circular before relying on a date.

During the tax year: advance tax

If your tax for the year is ₹10,000 or more after TDS, you pay it in instalments. The shares are cumulative.

Short or late advance tax brings interest of 1% a month: section 234B if you pay less than 90% of the assessed tax by the end of the year, and section 234C for each instalment (3 months of interest per instalment, 1 month for the March one). There is no interest for the June instalment if you have paid 12% by then, or for September if you have paid 36%.

After the tax year: filing

See ITR due dates for the tax year 2026-27 for the late fee and interest.

The late fee and extra tax, in one place

• Belated return: a fee of ₹5,000, or ₹1,000 if total income is ₹5,00,000 or less, only if you were required to file. Interest of 1% a month on unpaid tax. No old regime in a belated return on TaxCare's rules.
• Revised return after 31 December: a fee of ₹5,000 (₹1,000 up to ₹5,00,000 of income).
• Updated return: additional tax of 25%, 50%, 60% or 70% of the tax and interest, depending on how many months have passed from the end of the relevant year (within 12, 24, 36 or 48 months). It cannot give a refund or report a loss.

After filing

See how to e-verify your ITR and refund status and delays.

Other dates worth knowing

• TDS certificates. Employers issue Form 16 (Form 130 from the tax year 2026-27) after the year ends.
• Tax statements. Form 26AS is the TDS statement up to the tax year 2025-26, and Form 168 from the tax year 2026-27. Both update through the year as deductors file.

If you are still filing for the tax year 2025-26

The usual due date was 31-Jul-2026 (31-Aug-2026 for business income with no audit, 31-Oct-2026 with audit). A belated return can be filed until 31-Dec-2026, a revised return until 31-Mar-2027, and an updated return from 01-Jan-2027 to 31-Mar-2031. Check the Income Tax Department's notices for any extension.

A simple yearly routine

1. April to March: keep records, and pay advance tax if due.
2. April: filing opens. Collect AIS, TIS and Form 26AS or Form 168.
3. May to July: receive Form 16, compare regimes and file before 31 July.
4. Within 30 days of filing: e-verify.
5. After that: watch the refund and any notice.

How TaxCare helps

TaxCare tells you whether your return is on time, belated, revised or updated, and calculates the fee and interest for each from the rules above. It reminds you to e-verify, the day after filing and with 7, 2 and 1 days left, so a filed return does not lapse. See pricing, or book a Tax Expert for a deadline you have already missed.

This guide gives general information and is not professional tax advice.