FY 2025-26 · AY 2026-27

Tax Filing Due Dates

All income tax, GST, advance tax, TDS, and professional tax deadlines for FY 2025-26. Never miss a filing date.

Upcoming Deadlines

Due Date	Deadline	Type	Status
11 August 2026	GSTR-1 (Monthly)	GST	5 days left
20 August 2026	GSTR-3B (Monthly)	GST	14 days
31 August 2026	ITR-3 & ITR-4 Filing	Income Tax	25 days
11 September 2026	GSTR-1 (Monthly)	GST	36 days
15 September 2026	Advance Tax Q2	Advance Tax	40 days
20 September 2026	GSTR-3B (Monthly)	GST	45 days
11 October 2026	GSTR-1 (Monthly)	GST	66 days
20 October 2026	GSTR-3B (Monthly)	GST	75 days
11 November 2026	GSTR-1 (Monthly)	GST	97 days
20 November 2026	GSTR-3B (Monthly)	GST	106 days
11 December 2026	GSTR-1 (Monthly)	GST	127 days
15 December 2026	Advance Tax Q3	Advance Tax	131 days
20 December 2026	GSTR-3B (Monthly)	GST	136 days
31 December 2026	GSTR-9 Annual Return	GST	147 days
11 January 2027	GSTR-1 (Monthly)	GST	158 days
20 January 2027	GSTR-3B (Monthly)	GST	167 days
11 February 2027	GSTR-1 (Monthly)	GST	189 days
20 February 2027	GSTR-3B (Monthly)	GST	198 days
11 March 2027	GSTR-1 (Monthly)	GST	217 days
15 March 2027	Advance Tax Q4	Advance Tax	221 days
20 March 2027	GSTR-3B (Monthly)	GST	226 days

ITR-1 & ITR-2

July 31, 2026

Salaried individuals and investors

ITR-3 & ITR-4

August 31, 2026

Freelancers and business income (Budget 2026 extended)

GST Monthly

11th & 20th

GSTR-1 by 11th, GSTR-3B by 20th of each month

June 2026

Advance Tax Q1

July 2026

ITR-1 & ITR-2

August 2026

ITR-3 & ITR-4

September 2026

Advance Tax Q2

October 2026

Tax Audit

November 2026

GST Monthly

December 2026

GSTR-9 + Belated ITR

January 2027

GST Monthly

February 2027

Budget Month

March 2027

Advance Tax Q4

I handle ITR filing, GST returns, TDS deposits, and advance tax — all via WhatsApp. Never pay a late fee again.