GST Late Fee & Interest Calculator
Estimate late fee per return and interest on delayed GST payment.
GSTR‑1 · 3B · 9
Return & delay details
Interest is approximate and for guidance
Late fee slabs differ between forms (3B, 1, 9, etc.) and nil vs non‑nil returns.
If filed on time but tax was paid late, use delay in payment instead.
Please enter delay in days (0 or more).
₹
Interest is calculated on this amount for delayed payment under Section 50.
%
₹
If left blank, calculator can use default slabs (e.g. ₹20/₹50 per day for GSTR‑3B) in your JS logic.
₹
Penalty summary
Late fee and interest payable for this return
₹0
Enter delay days, return type and tax amount to estimate late fee and interest.
Late fee per day
₹0
Total late fee
₹0
Interest amount
₹0
Effective interest rate used
0% p.a.
Delay in days
0 days
Outstanding tax base
₹0
Return: GSTR‑3B
Non‑nil return
Also Use:- GST Calculator
