Filing GST returns late costs money in two ways: a late fee for every day of delay, and interest on tax paid after the due date. Repeated delays can also lead to blocked e-way bills and cancellation of registration. This guide explains GST late fees and interest and how to work out what you owe.

Late fees for monthly and quarterly returns

ReturnLate fee per day (CGST + SGST)Maximum per return
GSTR-3B or GSTR-1, nil return₹20₹500
GSTR-3B or GSTR-1, turnover up to ₹1.5 crore₹50₹2,000
GSTR-3B or GSTR-1, turnover ₹1.5 crore to ₹5 crore₹50₹5,000
GSTR-3B or GSTR-1, turnover above ₹5 crore₹50₹10,000

The turnover band is based on your aggregate turnover in the previous financial year. For inter-state supplies, the fee is charged as IGST at the same total amount.

Late fee for the annual return (GSTR-9)

For annual returns from 2022-23 onwards, the late fee depends on turnover:

  • Turnover up to ₹5 crore: ₹50 per day, capped at 0.04% of turnover in the state
  • Turnover above ₹5 crore and up to ₹20 crore: ₹100 per day, capped at 0.04% of turnover in the state
  • Turnover above ₹20 crore: ₹200 per day, capped at 0.5% of turnover in the state

Taxpayers with turnover up to ₹2 crore are exempt from filing GSTR-9 for recent years.

Interest on late payment

If you pay tax after the due date, interest at 18% per year applies from the day after the due date until the day you pay. Interest is calculated on the tax paid in cash, not on the part set off using input tax credit.

Example: You owe ₹40,000 in GSTR-3B for a month, of which ₹25,000 is covered by input tax credit and ₹15,000 is paid in cash, 10 days late. Interest is ₹15,000 × 18% × 10 ÷ 365 = about ₹74. A late fee of ₹50 × 10 = ₹500 also applies.

Interest at 18% also applies where input tax credit is wrongly claimed and used, from the date of use until it is reversed.

The three-year bar

The law now prevents filing a GST return after three years from its due date. The GST portal began enforcing this from the November 2025 tax period. If a return is barred, you cannot file it, and the department can assess the tax and recover it with interest and penalties. If you have old pending returns, file them now.

How to check what your business owes

  1. Check filing status on the GST portal under Services, Returns, Track Return Status, for every month and quarter.
  2. Check your ledgers. The electronic liability ledger shows tax, interest and late fees payable.
  3. Calculate late fees by multiplying the days of delay by the daily rate, up to the cap for your turnover band.
  4. Calculate interest on the cash portion of tax paid late, at 18% per year.
  5. Pay in cash through PMT-06 and file the pending returns in order, oldest first.

How to avoid late fees

  • Keep sales and purchase records up to date every month
  • File nil returns even when there is no business
  • Use the QRMP scheme if eligible, to file quarterly
  • Track all due dates in our compliance calendar
  • Cancel your registration properly if you close the business; see how to cancel GST registration

Behind on returns? Our GST return filing team calculates your exact dues and files pending returns in the right order. See also GSTR-1 vs GSTR-3B.

This article explains the general GST position as on the date shown. Late fee caps and waivers are set by notifications and can change; the amounts shown on the GST portal for your returns prevail.