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Compliance calendar.

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December 2026

7
Mon
- Income taxTDS payment
  Deductors · Deposit TDS deducted in the previous month.
11
Fri
- GSTGSTR-1 (outward supplies)
  Regular GST taxpayers (monthly filers) · Details of outward supplies for the previous month.
15
Tue
- Income taxAdvance tax instalment
  Taxpayers with tax liability above the threshold · Pay advance tax in instalments through the year.
- LabourESI contribution
  Establishments registered with ESIC · Deposit ESI contributions for the previous month.
- LabourPF contribution and return
  Establishments registered with EPFO · Deposit provident fund contributions and file the monthly return.
20
Sun
- GSTGSTR-3B (summary return and tax payment)
  Regular GST taxpayers (monthly filers) · Summary return and payment of tax. Due dates can vary by turnover and state.
31
Thu
- GSTGSTR-9 (annual return)
  Eligible GST taxpayers · Annual GST return for the previous financial year.

Dates are indicative

Due dates can be extended or vary by turnover, state and category. Confirm with the relevant authority or a professional. Get help with compliance.