Tax
GST Late Fee & Interest Calculator
Calculate the late fee and 18% interest payable on a delayed GSTR-3B or GSTR-1 return.
Return type
Annual turnover (for late-fee cap)
For GSTR-3B / GSTR-1. Late fee ₹50/day (₹25 + ₹25 CGST & SGST), capped at ₹2,000. Interest is 18% p.a. on net cash tax liability.
Total payable
₹1,941
Days late26
Late fee (CGST + SGST)₹1,300
Interest @ 18% p.a.₹641
Total₹1,941
Late feeInterest
About the GST Late Fee & Interest Calculator
Find the late fee and interest on a delayed GST return. Choose normal or nil, enter your net cash tax liability and the due and filing dates, and the calculator applies the per-day late fee (with the turnover-based cap) and 18% per-annum interest to show the total payable.
This calculator provides estimates for general guidance only and does not constitute professional advice. For advice specific to your situation, please get in touch.