India Tax Calendar 2026-27 — Every Due Date You Cannot Miss
Advance tax, ITR, TDS, and GST deadlines for FY 2026-27 / AY 2026-27 (Apr 2026 – Mar 2027). Grouped by month. Penalty amount shown for each.
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Missing a tax deadline in India is expensive — a late-filed ITR alone can cost ₹5,000 in Section 234F fees, and missed advance-tax instalments attract 1% monthly interest under Section 234C. This calendar lists every statutory due date for Financial Year 2026-27 so you can plan compliance weeks ahead. All dates are confirmed against the official Income Tax Department notifications published at incometax.gov.in and the CBDT circular archive.
ITR — Section 234F: ₹1,000 if total income ≤ ₹5 lakh, else ₹5,000.
Unpaid tax — Section 234A: 1% per month simple interest from the due date until payment.
Advance tax shortfall — Section 234B/234C: 1% per month on the shortfall in each instalment.
TDS short-deposit — Section 201(1A): 1.5% per month until paid.
Late TDS return — Section 234E: ₹200 per day, capped at the TDS amount itself.
GST — Section 47 CGST Act: ₹50 per day (₹20 for nil return), capped, plus 18% p.a. interest on tax short-paid.
Cross-check against live notifications
The Central Board of Direct Taxes (CBDT) occasionally extends specific deadlines by circular — usually when the e-filing portal is overloaded or a major rule change drops late in the year. For the authoritative, real-time list see incometaxindia.gov.in/Pages/communications/Circulars. Our events page mirrors those extensions within 48 hours of publication. If you spot a discrepancy, ping us and we will verify against the source.
Frequently asked questions
What is the ITR filing last date for AY 2026-27?
For salaried individuals and non-audit taxpayers, the due date to file Income Tax Return for AY 2026-27 is 31 July 2026. For taxpayers subject to tax audit it is 31 October 2026, and for transfer pricing cases 30 November 2026.
What are the advance tax due dates for FY 2026-27?
Advance tax is payable in four instalments: 15 June (15% of liability), 15 September (45% cumulative), 15 December (75% cumulative) and 15 March (100%). Applicable if your total tax liability after TDS exceeds ₹10,000 in a financial year.
When must TDS be deposited with the government?
TDS deducted in any month must be deposited by the 7th of the next month. TDS for March has a later deadline of 30 April. Late deposit attracts interest at 1.5% per month under Section 201(1A).
What happens if I miss the 31 July 2026 ITR deadline?
You can still file a belated return up to 31 December 2026, but you will pay a Section 234F late-filing fee (₹1,000 if total income is up to ₹5 lakh, else ₹5,000) plus interest under Sec 234A on unpaid tax. You also lose the ability to carry forward certain losses.
Are GSTR-1 and GSTR-3B due the same day?
No. GSTR-1 (outward supplies) is due on the 11th of the following month for monthly filers; GSTR-3B (summary return with tax payment) is due on the 20th. QRMP scheme taxpayers file GSTR-1 quarterly and pay tax monthly via PMT-06.