Deadline finder

Which deadlines apply to me?

Three questions, and the list below narrows to what is actually yours.

1 Which year, and in which sense?

Deadlines FOR a financial year Deadlines IN a calendar year

Financial year the return covers

2021-22 2022-23 2023-24 2024-25 2025-26 2026-27 2027-28 2028-29 2029-30 2030-31 2031-32
2 I am …

An individual A freelancer A startup / SMB An enterprise
3 How is your company set up?

How is your company set up?
Monthly GST returns Inter-state supplies Employs staff

Your deadlines for financial year 2026-27

May 2026

Due on	Filing	Period	Filed by	Deadline
May 11, 2026	GSTR-1	April 2026	yourself or an advisor	169 days ago
May 20, 2026	GSTR-3B	April 2026	yourself or an advisor	160 days ago

June 2026

Due on	Filing	Period	Filed by	Deadline
June 11, 2026	GSTR-1	May 2026	yourself or an advisor	138 days ago
June 22, 2026	GSTR-3B	May 2026	yourself or an advisor	127 days ago

July 2026

Due on	Filing	Period	Filed by	Deadline
July 13, 2026	GSTR-1	June 2026	yourself or an advisor	106 days ago
July 20, 2026	GSTR-3B	June 2026	yourself or an advisor	99 days ago
July 31, 2026	TDS Return	Q1 2026-27	yourself or an advisor	88 days ago

August 2026

Due on	Filing	Period	Filed by	Deadline
August 11, 2026	GSTR-1	July 2026	yourself or an advisor	77 days ago
August 20, 2026	GSTR-3B	July 2026	yourself or an advisor	68 days ago

September 2026

Due on	Filing	Period	Filed by	Deadline
September 11, 2026	GSTR-1	August 2026	yourself or an advisor	46 days ago
September 21, 2026	GSTR-3B	August 2026	yourself or an advisor	36 days ago

October 2026

Due on	Filing	Period	Filed by	Deadline
October 12, 2026	GSTR-1	September 2026	yourself or an advisor	15 days ago
October 20, 2026	GSTR-3B	September 2026	yourself or an advisor	7 days ago

November 2026

Due on	Filing	Period	Filed by	Deadline
November 02, 2026	TDS Return	Q2 2026-27	yourself or an advisor	in 6 days
November 11, 2026	GSTR-1	October 2026	yourself or an advisor	in 15 days
November 20, 2026	GSTR-3B	October 2026	yourself or an advisor	in 24 days

December 2026

Due on	Filing	Period	Filed by	Deadline
December 11, 2026	GSTR-1	November 2026	yourself or an advisor	in 45 days
December 21, 2026	GSTR-3B	November 2026	yourself or an advisor	in 55 days

January 2027

Due on	Filing	Period	Filed by	Deadline
January 11, 2027	GSTR-1	December 2026	yourself or an advisor	in 76 days
January 20, 2027	GSTR-3B	December 2026	yourself or an advisor	in 85 days

February 2027

Due on	Filing	Period	Filed by	Deadline
February 01, 2027	TDS Return	Q3 2026-27	yourself or an advisor	in 97 days
February 11, 2027	GSTR-1	January 2027	yourself or an advisor	in 107 days
February 22, 2027	GSTR-3B	January 2027	yourself or an advisor	in 118 days

March 2027

Due on	Filing	Period	Filed by	Deadline
March 11, 2027	GSTR-1	February 2027	yourself or an advisor	in 135 days
March 22, 2027	GSTR-3B	February 2027	yourself or an advisor	in 146 days

April 2027

Due on	Filing	Period	Filed by	Deadline
April 12, 2027	GSTR-1	March 2027	yourself or an advisor	in 167 days
April 20, 2027	GSTR-3B	March 2027	yourself or an advisor	in 175 days

May 2027

Due on	Filing	Period	Filed by	Deadline
May 31, 2027	TDS Return	Q4 2026-27	yourself or an advisor	in 216 days

November 2027

Due on	Filing	Period	Filed by	Deadline
November 01, 2027	Income Tax Return (audit cases) *	2026-27	filed by an advisor	in 370 days

About these dates

For these returns the deadline depends on the case. A non-audit return is due 31 July; where a tax audit under s.44AB is required, the return is due later. Every other date in the table is the same either way.
A date falling on a Sunday or a public holiday moves to the next working day (s.10, General Clauses Act).
Where the CBDT extended a date by circular, the original stands beside it, struck through. The info marker names the circular.
State holidays are not taken into account, and the CBDT extends these dates by circular in most years — check the current circular before relying on a date.

This overview is not tax advice. For your own case, please confirm the dates with a chartered accountant or on the Income Tax Department's e-filing portal.

This is not advice. Whether a threshold is crossed depends on your numbers.

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