Key takeaways
What this article covers, in order:
- GST interest on late payment
- What it costs or triggers
- How to stay on the right side of it
- How HelloBooks helps
- Frequently asked questions
Interest on late GST is charged per day until you pay.
GST interest on late payment
Interest at 18% per annum applies on the net tax discharged late, calculated for the days of delay.
What it costs or triggers
Filing late costs a late fee of ₹50 per day (₹20 per day for a nil return), subject to a cap, plus interest at 18% per annum on any tax paid late — which is exactly why a reminder-driven filing routine pays for itself.
- Interest is on the net cash tax paid late.
- It runs from the due date to the payment date.
- It is separate from the late fee.
How to stay on the right side of it
- File every return on time, including nil returns.
- Reconcile input tax credit with GSTR-2B every month.
- Keep invoices, debit and credit notes for at least six years.
- Set calendar reminders for every due date, or let software do it.
How HelloBooks helps
You do not have to track any of this on a spreadsheet — HelloBooks does it for you. HelloBooks is free GST accounting software for Indian businesses: you can raise GST-compliant invoices with the correct HSN or SAC code, track input tax credit against your GSTR-2B, and file unlimited GSTR-1 and GSTR-3B returns from one dashboard.
- GST-ready invoicing with automatic CGST / SGST / IGST split and HSN or SAC codes.
- GSTR-2B reconciliation so you only claim the input tax credit you are actually entitled to.
- GSTR-1 and GSTR-3B filing free, with GSTR-9 generated ready to file and e-invoicing on higher plans.
- Due-date reminders so a late fee never catches you by surprise.
Thousands of founders, freelancers and accountants in India run their books on HelloBooks — you can start free, with no credit card.
Frequently asked questions
What is GST interest on late payment under GST?
Interest at 18% per annum applies on the net tax discharged late, calculated for the days of delay.
How do I avoid it?
File on time, reconcile your input tax credit against GSTR-2B, and keep clean records. Automated reminders in GST software prevent most penalties.
Can HelloBooks help me stay compliant?
Yes — HelloBooks files GSTR-1 and GSTR-3B free, reconciles GSTR-2B, generates GSTR-9 and sends due-date reminders so you never miss a filing.
