GST Late Fee. & Interest.
Filed late? See your exact GST late fee and interest — with the nil-return rate and the ₹10,000 cap applied correctly, not guessed.
How much is your GST late fee?
Pick the return type, set the due and filing dates, and flag nil returns. We'll compute the late fee, interest and the ₹10,000 cap.
How GST late fees and interest work
File a GST return after its due date and a late fee accrues per day until you file, plus interest on any unpaid tax. The per-day fee depends on whether the return is nil. The late fee is capped, but interest is not — it keeps running on the tax you owe until it's paid.
Indian SaaS context: Nil returns are charged ₹20/day, not the ₹50/day regular rate — a distinction many calculators miss, overcharging small businesses by 2.5×. Interest at 18% p.a. applies only to an actual tax liability (typically GSTR-3B), so nil and GSTR-1 filings incur late fee alone.
Frequently asked questions
How much is the GST late fee per day?+
₹50 per day for a regular return (₹25 CGST + ₹25 SGST) and ₹20 per day for a nil return (₹10 + ₹10). Both are capped at ₹10,000 per return. Nil filers are charged the lower rate — a regular-rate charge on a nil return is a 2.5× overcharge.
Is there interest on top of the late fee?+
Yes — if you owe tax (typically GSTR-3B), interest accrues at 18% per annum (1.5% per month) on the unpaid liability from the due date until you pay. Nil returns and GSTR-1 have no tax liability, so no interest applies.
What's the maximum GST late fee?+
₹10,000 per return per Act (so ₹10,000 CGST + ₹10,000 SGST in the worst case) after the 2021 amendment. This calculator applies the ₹10,000 cap to the combined late fee it shows.
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