Calculate late filing fees & 18% p.a. interest for GSTR-3B, GSTR-1, GSTR-4, and GSTR-9 returns
Free GST Late Fee Calculator for GSTR-3B, GSTR-1, GSTR-4, GSTR-9. Calculate late filing fees, 18% interest, and total penalty on delayed GST returns instantly. This tool is built for practical, real-world usage where speed, clarity, and reliable output matter. You can start with the default values, review the result, and then refine inputs step by step to match your exact scenario.
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For GSTR-3B, the late fee is ₹50/day (₹25 CGST + ₹25 SGST) for regular returns, and ₹20/day for nil returns. The maximum cap depends on your annual turnover — ₹2,000 for turnover up to ₹1.5 Cr, ₹5,000 for up to ₹5 Cr, and ₹10,000 for above ₹5 Cr.
Interest is charged at 18% per annum on the outstanding tax liability from the due date to the actual date of filing/payment. The formula is: Tax × 18% × (days late / 365).
Yes, but at a reduced rate of ₹20/day (₹10 CGST + ₹10 SGST) with a maximum cap of ₹500 (₹250 per act).
GSTR-9 carries a late fee of ₹200/day (₹100 CGST + ₹100 SGST), capped at 0.5% of turnover in the relevant state or Union Territory.
The government periodically announces late fee amnesty schemes. Check the latest GST notifications for any active waivers or reductions.
Purpose: Calculate GST late fees & interest instantly for GSTR-3B, GSTR-1, GSTR-4, GSTR-9.
Accurately calculates GST late filing fees and 18% p.a. interest for all major return types. Supports nil vs taxable returns, turnover-based max fee caps, and automatic CGST/SGST split. Includes FAQ schema for Google rich results.
This page includes tool-specific method notes, edge-case guidance, and reference context to provide substantial user value beyond a basic calculator interface.