Invoice generator
GST or non-GST invoice, quotation or bill you can print or save as PDF.
GST late fee and interest calculator
Enter the due date and the date you filed. The calculator applies the per-day late fee, the cap for your turnover and 18% a year interest on tax paid late.
These are the rule values we built in. Late fee waivers and new notifications change them, so check the amount shown on the GST portal before you pay.
Rules this calculator uses
- Late fee per day
- ₹50.00 (CGST + SGST)
- Late fee per day, nil return
- ₹20.00
- Cap, nil return
- ₹500.00
- Cap, turnover up to ₹1.5 crore
- ₹2,000.00
- Cap, turnover ₹1.5 crore to ₹5 crore
- ₹5,000.00
- Cap, turnover above ₹5 crore
- ₹10,000.00
- Interest on tax paid late
- 18% a year, per day (365-day year)
- Source
- Section 47 and section 50(1) of the CGST Act, with Notifications 19/2021 and 20/2021 - Central Tax (late fee caps from the June 2021 tax period).
Questions people ask
What is the late fee for GSTR-3B?
₹50 a day (₹25 CGST and ₹25 SGST), or ₹20 a day for a nil return, up to a cap per return that depends on last year's turnover. The calculator lists the exact values it uses.
Is there a late fee on IGST?
The late fee is charged under the CGST Act and the state GST Act, so it shows as CGST and SGST even when your tax is IGST.
How is GST interest worked out?
18% a year on the tax you pay in cash after the due date, for each day from the day after the due date to the day you pay. Tax paid from input tax credit doesn't attract this interest.
Can I pay the late fee from input tax credit?
No. The late fee and interest have to be paid in cash through the electronic cash ledger.
Want this inside your own account?
Marketiism keeps your invoice numbers, GST reports, UPI payment links and WhatsApp reminders in one place. Leave your details and we'll call to set it up for your business, or start the trial yourself.
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