The key Indian tax and GST dates in one place — ITR filing deadlines for AY 2026–27 (income earned in FY 2025–26), advance-tax instalments for FY 2026–27, monthly and quarterly GST return dates, and TDS deposit & statement deadlines. Statutory dates as published by the Income Tax Department and GSTN; CBDT extensions are notified at incometax.gov.in.
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India Financial Year Calendar 2026–27
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Income tax returns — FY 2025–26 (AY 2026–27)
For income earned 1 April 2025 – 31 March 2026, filed in assessment year 2026–27.
| Who | Forms | Due date |
|---|---|---|
| Salaried individuals & others not requiring audit | ITR-1, ITR-2 | 31 July 2026 |
| Business / professional income, no tax audit | ITR-3, ITR-4 | 31 August 2026 (permanent change from Finance Act 2026) |
| Tax-audit cases (Section 44AB) | ITR-3, ITR-5, ITR-6 | 31 October 2026 |
| Transfer-pricing cases (Section 92E report) | — | 30 November 2026 |
| Belated or revised return (with late fee) | — | 31 December 2026 |
Advance tax — FY 2026–27
Applies when your tax liability after TDS is ₹10,000 or more. Percentages are cumulative.
| Instalment | Cumulative tax paid | Due date |
|---|---|---|
| 1st | 15% | 15 June 2026 |
| 2nd | 45% | 15 September 2026 |
| 3rd | 75% | 15 December 2026 |
| 4th | 100% | 15 March 2027 |
| Presumptive scheme (44AD / 44ADA) | 100% in one payment | 15 March 2027 |
GST returns
| Return | Who | Due |
|---|---|---|
| GSTR-1 (outward supplies) | Monthly filers (turnover > ₹5 crore) | 11th of next month |
| GSTR-3B (summary + payment) | Monthly filers | 20th of next month |
| GSTR-1 (quarterly, QRMP) | Turnover ≤ ₹5 crore on QRMP | 13th after quarter-end |
| GSTR-3B (quarterly, QRMP) | QRMP — 22nd or 24th by state group | 22nd / 24th after quarter-end |
| PMT-06 (monthly tax payment under QRMP) | QRMP months 1–2 of each quarter | 25th of next month |
| GSTR-9 / GSTR-9C annual return for FY 2025–26 | Registered businesses (thresholds apply) | 31 December 2026 |
TDS & TCS — FY 2026–27
New form numbers from 1 April 2026. Under the Income-tax Act 2025, the familiar TDS/TCS statement forms were renumbered for FY 2026–27: salary TDS Form 24Q → Form 138, resident non-salary 26Q → 140, non-resident 27Q → 144, and TCS 27EQ → 143. Same quarterly deadlines, new form names.
| Obligation | Period | Due date |
|---|---|---|
| Deposit TDS deducted | Each month | 7th of next month (March: 30 April) |
| Quarterly TDS statement — Q1 | Apr – Jun 2026 | 31 July 2026 |
| Quarterly TDS statement — Q2 | Jul – Sep 2026 | 31 October 2026 |
| Quarterly TDS statement — Q3 | Oct – Dec 2026 | 31 January 2027 |
| Quarterly TDS statement — Q4 | Jan – Mar 2027 | 31 May 2027 |
| Form 16 (salary TDS certificate) to employees | FY 2025–26 | 15 June 2026 |
How to read these dates
- FY vs AY: income earned in FY 2025–26 is filed in AY 2026–27 — select the assessment year on ITR forms and challans.
- Extensions: CBDT and GSTN extend specific deadlines by notification in some years. The dates here are the statutory defaults — check incometax.gov.in / gst.gov.in near a deadline.
- Your dates may differ: audit applicability, QRMP state groups, non-resident status and company deadlines all vary. Confirm with your CA.
- Tip: press Ctrl/Cmd + P to print this page or save it as a PDF.
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Frequently asked questions
When is the last date to file my ITR this year?
For income earned in FY 2025–26 (assessed in AY 2026–27): salaried taxpayers and others filing ITR-1 or ITR-2 must file by 31 July 2026. Business and professional taxpayers filing ITR-3 or ITR-4 who don't need a tax audit now have until 31 August 2026 — a permanent change made by the Finance Act 2026, not a one-off extension. Audit cases have until 31 October, and transfer-pricing cases until 30 November. CBDT sometimes extends these by notification, so check incometax.gov.in close to the deadline.
What's the difference between the financial year (FY) and assessment year (AY)?
The financial year is when you earn the income — 1 April to 31 March. The assessment year is the following year, when that income is assessed and the return is filed. So income earned in FY 2025–26 is reported in AY 2026–27. Every ITR form and challan asks for the assessment year, which trips up first-time filers — when filing in July–August 2026, select AY 2026–27.
What happens if I miss the ITR deadline?
You can still file a belated return up to 31 December 2026, but with a late-filing fee under Section 234F (₹5,000, or ₹1,000 if total income is below ₹5 lakh), interest on unpaid tax under Section 234A, and you lose the ability to carry forward most losses. A revised return (to fix mistakes) is also allowed until 31 December 2026.
Who has to pay advance tax, and when?
Anyone whose tax liability for the year (after TDS) is ₹10,000 or more — including salaried people with significant other income, freelancers and businesses. It's paid in four instalments during FY 2026–27: 15% by 15 June, 45% by 15 September, 75% by 15 December, and 100% by 15 March (cumulative). Taxpayers under the presumptive scheme (Sections 44AD/44ADA) can instead pay the whole amount by 15 March.
When are GST returns due?
Monthly filers (turnover above ₹5 crore): GSTR-1 by the 11th and GSTR-3B by the 20th of the following month. Smaller businesses on the QRMP scheme file quarterly — GSTR-1 by the 13th and GSTR-3B by the 22nd or 24th of the month after the quarter (depending on your state), while paying tax monthly via PMT-06 by the 25th. The annual return (GSTR-9, plus GSTR-9C reconciliation where applicable) for FY 2025–26 is due 31 December 2026.
Are these dates official?
They're the standard statutory due dates under the Income-tax Act and GST law for FY 2026–27 / AY 2026–27, as published by the Income Tax Department and GSTN. CBDT and GSTN periodically extend specific deadlines by notification, and your own dates can differ (audit applicability, state-specific QRMP dates, non-resident cases). Always confirm against incometax.gov.in and gst.gov.in or with your CA.
Updated through July 2026