Tax & Compliance

India GST Compliance Calendar 2026: Key Deadlines and Filing Requirements

Comprehensive calendar of all GST filing deadlines, return types, and compliance requirements for businesses operating in India throughout 2026.

January 10, 202612 min read
Calendar with tax deadline markers and calculator on wooden desk

Staying compliant with GST filing requirements is critical for businesses operating in India.

Understanding GST Return Types

GSTR-1: Outward Supplies

  • Monthly for turnover > INR 5 crores
  • Quarterly for turnover ≤ INR 5 crores

GSTR-3B: Summary Return

  • Filed monthly by all regular taxpayers

GSTR-9: Annual Return

  • Filed annually by all regular taxpayers

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