18% a year on tax paid after the due date — and 18% on input tax credit wrongly availed and actually used, from the day it was used. (Section 50, Central Goods and Services Tax Act, 2017.) In force since 1 July 2017 · Text checked against India Code on 25 October 2026.
The text of Section 50
50. Interest on delayed payment of tax.— (1) Every person who is liable to pay tax in accordance with the provisions of this Act or the rules made thereunder, but fails to pay the tax or any part thereof to the Government within the period prescribed, shall for the period for which the tax or any part thereof remains unpaid, pay, on his own, interest at such rate, not exceeding eighteen per cent., as may be notified by the Government on the recommendations of the Council: Provided that the interest on tax payable in respect of supplies made during a tax period and declared in the return for the said period furnished after the due date in accordance with the provisions of section 39, except where such return is furnished after commencement of any proceedings under section 73 or section 74 or section 74A in respect of the said period, shall be payable on that portion of the tax which is paid by debiting the electronic cash ledger. (2) The interest under sub-section (1) shall be calculated, in such manner as may be prescribed, from the day succeeding the day on which such tax was due to be paid. (3) Where the input tax credit has been wrongly availed and utilised, the registered person shall pay interest on such input tax credit wrongly availed and utilised, at such rate not exceeding twenty-four per cent. as may be notified by the Government, on the recommendations of the Council, and the interest shall be calculated, in such manner as may be prescribed.
Common questions
What is the interest rate for late GST payment?
18% a year under section 50(1) of the CGST Act, 2017, for the period the tax remains unpaid. Where input tax credit has been wrongly availed and utilised, section 50(3) charges interest at 18% a year from the date the credit was used, under rule 88B. The Act allows up to 24%, but 18% is the rate notified.
Is GST interest charged on the gross or the net liability?
Where the return for the period is furnished after the due date, the proviso to section 50(1) charges interest on the portion of the liability discharged in cash. That proviso was given retrospective effect from 1 July 2017.
Does GST interest need a notice before it applies?
No. The liability arises under the section itself for the period the tax is unpaid, which is why a delay discovered during a later reconciliation still carries interest for the whole period.
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