Free Download — GST 2026
GST Filing Deadline Calendar 2026
for Indian Businesses
All GSTR-1, GSTR-3B, GSTR-9, TDS, TCS and advance tax due dates in one printable calendar. Never pay a late fee again.
All GSTR due dates TDS & TCS deadlines Advance tax dates Printable PDF
Late GST filing penalty: ₹50/day (CGST + SGST) for returns with tax liability. ₹20/day for nil returns. Don't miss these dates.
Key Deadlines — H1 2026
January 2026
- 11 Jan — GSTR-1 (Dec)
- 13 Jan — GSTR-1 IFF (Dec, QRMP)
- 20 Jan — GSTR-3B (Dec)
- 28 Jan — TDS/TCS deposit (Dec)
February 2026
- 11 Feb — GSTR-1 (Jan)
- 13 Feb — GSTR-1 IFF (Jan, QRMP)
- 20 Feb — GSTR-3B (Jan)
- 15 Feb — TDS Q3 return (Form 24Q/26Q)
March 2026
- 11 Mar — GSTR-1 (Feb)
- 20 Mar — GSTR-3B (Feb)
- 15 Mar — Advance Tax (3rd instalment)
- 31 Mar — ITR filing deadline (audit cases)
April 2026
- 11 Apr — GSTR-1 (Mar)
- 20 Apr — GSTR-3B (Mar)
- 30 Apr — GSTR-4 (FY 2025–26, composition)
- 30 Apr — TDS Q4 deposit
May 2026
- 11 May — GSTR-1 (Apr)
- 20 May — GSTR-3B (Apr)
- 31 May — TDS return Q4 (Form 24Q/26Q/27Q)
- 31 May — Form 16 issue deadline
June 2026
- 11 Jun — GSTR-1 (May)
- 20 Jun — GSTR-3B (May)
- 15 Jun — Advance Tax (1st instalment FY 27)
- 30 Jun — GSTR-4 annual for FY 2025–26
Full year calendar (Jan–Dec 2026) + H2 dates in the downloadable PDF.
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Get the Full Calendar
Jan–Dec 2026 PDF, sent to your email