GST · EDUCATIONAL TOOL
GST Interest & Late Fee Calculator
Estimate standard delayed-return interest and GSTR-3B late fees, including the eligible cash-ledger adjustment and separately dated unpaid tax.
Educational estimates; verify the applicable period, conditions and official sources. Server calculation: inputs are sent securely to this website for calculation. The GST module does not retain the entered tax values. Do not enter personal identifiers.
UNDERSTAND THE CALCULATION
How to use GST Interest & Late Fee Calculator
Explore supported cash-ledger interest and return late-fee scenarios.
Inputs and definitions
Return and period, verified due date, payment date, tax-head liabilities and applicable cash-ledger/payment history.
Method and formula
Determine the supported interest base and day count, then apply the annual rate on a daily basis. Late fees are a separate calculation with their own conditions and caps.
Illustrative example
An illustrative ₹10,000 interest base for ten days at a confirmed 18% annual rate gives about ₹49.32 using 365 days. Cash-ledger adjustments can change the eligible base.
Scope and limitations
Review the relevant period, supplied facts, official sources and any conditions beside the result.
These examples explain the method. The interactive result depends on the selected facts and period, and is not a filing or an eligibility confirmation.
Processing: Server-calculated GST tool; inputs are sent for calculation and are not saved as client records by the GST module. Privacy details