Interest on delayed tax payment accrues from the day after due date at government notified rates for unpaid tax and excess credit claims. Interest is payable on unpaid GST liabilities from the day after the tax is due, at a government notified rate (not exceeding eighteen percent), and interest on undue or excess input tax credit claims or undue reductions in output tax liability is payable at a higher government notified rate (not exceeding twenty four percent).