Due Dates
GSTR-1 (Monthly): 11th of every monthGSTR-3B (Monthly): 20th of every monthITR Filing (Individuals): 31st July 2026AOC-4 (ROC Annual Filing): 30th October 2026MGT-7 (ROC Annual Return): 29th November 2026
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GST Return Filing Due Dates & Penalty Structure for FY 2026-27

By CS Audit TeamAugust 05, 2026GST & Taxation
GST Return Filing Due Dates & Penalty Structure for FY 2026-27
"Avoid late fees under Section 47. Understand GSTR-1, GSTR-3B monthly deadlines, GSTR-9 annual compliance, and automated ITC reconciliation rules."

Understanding GST Compliance Requirements

Filing regular Goods and Services Tax (GST) returns is mandatory for all registered businesses in India. Failing to file returns on time attracts late fees under Section 47 and interest under Section 50 of the CGST Act.

Key Due Dates Checklist

  • GSTR-1 (Outward Supplies): 11th of every month (Monthly filers) or 13th of the month following the quarter (QRMP scheme).
  • GSTR-3B (Summary Tax Return): 20th of every month (Monthly filers) or 22nd/24th of the month following the quarter.
  • CMP-08 (Composition Scheme): 18th of the month following the quarter.
  • GSTR-9 & GSTR-9C (Annual Return & Reconciliation): 31st December following the relevant financial year.

Penalty & Late Fee Structure

  1. NIL Return Late Fee: ₹20 per day (₹10 CGST + ₹10 SGST) up to maximum limits.
  2. Taxable Return Late Fee: ₹50 per day (₹25 CGST + ₹25 SGST) up to ₹5,000 per return.
  3. Interest on Delayed Tax Payment: 18% per annum calculated on the net tax liability paid through electronic cash ledger.

Tips to Avoid Penalties

  • Maintain automated purchase registers and reconcile GSTR-2B monthly to ensure complete Input Tax Credit (ITC) claim.
  • File GSTR-1 on time so your buyers can claim ITC smoothly.
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