Under Section 50 of the CGST Act, late GST attracts interest at 18% a year on the net tax paid in cash, from the day after the due date to the date of payment. Interest = tax × 18% × days late ÷ 365. Example: ₹1,00,000 paid 30 days late → ₹1,479. Interest is paid in cash, not from input tax credit.
GST Interest Calculator
Estimate simple interest on delayed GST payment.
Indicative calculation only. Verify accounting, tax, lending and valuation decisions against your policies and source records.
How to use GST Interest Calculator
Use this free FastFee tool for a quick gst & compliance calculation. Enter the required values, review the result, and use the output for planning or internal calculations.
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