GSTR-3B Interest & Late Fee Calculator
Calculate your GST liability, interest, and late fees accurately.
1. Return Details
Select the tax period for GSTR-3B.
Official due date for filing.
Date when the return is filed.
2. Tax Liability
Total liability before ITC.
3. Input Tax Credit (ITC)
Total input tax credit available.
ITC used to reduce tax liability.
4. Payment Details
Interest calculated up to this date.
If paid earlier, enter for accurate interest.
5 & 6. Interest & Late Fee Settings
Standard GST interest rate is 18% p.a.
Nil return has a lower late fee.
Default: ₹50 (Regular), ₹20 (Nil).
Late fee will not exceed this limit.