What is the advance tax due date in March 2027?

March 15, 2027 is the final advance tax instalment deadline for FY 2026-27. You must have paid 100% of your estimated annual tax liability by this date.

What is the revised ITR deadline in March 2027?

March 31, 2027 is the last date to file a revised return for FY 2025-26 (AY 2026-27). Budget 2026 extended this from December 31 to March 31.

What is the GSTR-1 due date for March 2027?

GSTR-1 for February 2027 (monthly filers) is due on March 11, 2027.

What is the GSTR-3B due date for March 2027?

GSTR-3B for February 2027 is due on March 20, 2027 for monthly filers.

What is the advance tax due date in March 2027?

March 15, 2027 is the final advance tax instalment deadline for FY 2026-27. You must have paid 100% of your estimated annual tax liability by this date.

What is the revised ITR deadline in March 2027?

March 31, 2027 is the last date to file a revised return for FY 2025-26 (AY 2026-27). Budget 2026 extended this from December 31 to March 31.

What is the GSTR-1 due date for March 2027?

GSTR-1 for February 2027 (monthly filers) is due on March 11, 2027.

What is the GSTR-3B due date for March 2027?

GSTR-3B for February 2027 is due on March 20, 2027 for monthly filers.

FY 2026-27 · Tax Calendar

Tax Due Dates — March 2027

March 2027 is the final month of FY 2026-27 with multiple critical deadlines: advance tax Q4 on March 15 (100% cumulative), revised ITR deadline on March 31, and the end of the financial year.

Deadlines This Month

tracked filing dates

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Deadlines in March 2027

Due Date	Deadline	Type	Status
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

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