Estimate the late fee and interest payable on delayed GST returns. Enter the number of days delayed, per-day late fee, and tax amount to get an instant estimate of your total additional cost.
This calculator uses simple formulas and user-entered rates. For exact computation as per latest GST rules, refer to government notifications or consult your tax advisor.
Use this tool to estimate the late fee and interest payable when GST returns are filed after the due date. Actual amounts may vary based on return type, turnover category, exemptions, and government notifications.
Days between due date and actual filing date.
You can use a typical combined late fee for CGST+SGST or your own value.
Total GST payable for the period. For NIL return, you may leave this as 0.
For many delayed GST payments, interest of 18% p.a. is applicable. Check latest rules for your case.
Under the Goods and Services Tax (GST) regime in India, a registered taxpayer may have to pay late fee and interest if returns are filed after the due date or if tax payment is delayed. The broad logic is as follows (actual rules may vary by return type and turnover):
Late fee is usually charged on a per-day basis for each day of delay, for each return. Different rates may apply for NIL vs non-NIL returns and for different forms.
Late fee = Per-day late fee × Number of days delayed
In many cases, separate late fee is prescribed under CGST and SGST laws. The calculator lets you enter a combined per-day figure for simplicity.
If tax is paid after the due date, interest is often payable on the outstanding tax amount at a specified annual rate (for example 18% p.a. in many cases).
Interest = Tax amount × (Interest rate ÷ 100) × (Days of delay ÷ 365)
The calculator above uses this simple formula to estimate interest on tax payable based on your inputs.
For end-to-end GST record keeping, reconciliations, and timely filing support, you can reach out to BrightBooks Advisory Services. We help businesses maintain clean, compliant books and avoid last-minute surprises.
Late fee rates and caps are notified by the government and may differ by return form and period. You can refer to the GST portal or latest notifications. In this tool, you can enter that per-day amount manually.
Interest is usually calculated on the outstanding tax payable. If you want to estimate interest, you need to enter the approximate tax due for that period.
No. This is a simplified estimator for typical scenarios. It does not handle special cases, waivers, amnesty schemes, or different rates for different forms. It should be used only for rough planning.
Yes. BrightBooks Advisory Services can help you organize your records, reconcile data, and put in place processes so that future returns are filed on time and late fees are minimized.
