FinTax24

GST & Business

GST Late Fee Calculator

Quick answer: The FinTax24 GST Late-Fee and Penalty Calculator computes late-fee dues under Section 47 (CGST) and 18% per annum interest under Section 50 for delayed filing of GSTR-1, GSTR-3B and GSTR-9 (annual) returns, including the reduced ₹20 / ₹50 per day slab effective from FY 2021-22 onwards for NIL return filers.

Calculate late fee on delayed GST returns.

How to use this calculator

Follow these 5 steps for an accurate result.

  1. 1

    Pick return type

    Choose GSTR-1, GSTR-3B, GSTR-9 or other; each has different caps and per-day rates.

  2. 2

    Enter turnover

    Type aggregate turnover of the registered person in the relevant State / UT.

  3. 3

    Enter delay in days

    Number of days the return is delayed beyond the statutory due date.

  4. 4

    Enter tax payable

    Type the GST liability whose late payment triggers 18% interest under Section 50.

  5. 5

    Read late fee + interest

    See CGST late fee, SGST late fee, IGST late fee (where applicable) and interest line-by-line.

Key takeaways

  • Late fee under Section 47 is ₹50/day (₹20/day for NIL returns) — capped per Act and refundable under amnesty.
  • Interest on delayed tax payment is 18% per annum from the due-date till actual credit.
  • GSTR-9 (annual return) has a separate ₹200/day cap (₹100 CGST + ₹100 SGST) capped at ₹10,000 turnover-wise.
  • Useful for CA firms doing reconciliation, businesses estimating penalty exposure and amnesty-window planning.

Frequently asked questions

Quick answers to common questions about gst late fee calculator.

Late fee is ₹50 per day (₹25 CGST + ₹25 SGST) for normal filers and ₹20 per day for NIL returns under Section 47. Total late fee is capped at ₹10,000 per Act (₹5,000 CGST + ₹5,000 SGST) per return period. Effective from FY 2021-22 amendment.

Yes — late fee for GSTR-9 (annual return) is ₹100 per day (₹50 CGST + ₹50 SGST), capped at 0.25% of aggregate turnover (₹2,000 CGST + ₹2,000 SGST). For NIL annual return filers, ₹100 per day cap applies subject to turnover condition.

Section 50 levies 18% per annum (1.5% per month) interest on the tax amount unpaid, calculated from the due date of payment to the date of actual credit in the electronic cash ledger. Calculator applies this monthly interest automatically.

Yes — the Government notifies conditional waiver schemes from time to time (e.g., amnesty periods for FY 2017-18 to FY 2020-21 late returns) under Section 128 of the CGST Act. The current default calculator uses full-fee rates; consult our experts during active amnesty windows.

NIL return filers pay ₹20/day under Section 47 (₹10 CGST + ₹10 SGST) — significantly lower than the regular ₹50/day. This is the standard rate since FY 2022-23, designed to encourage compliance by small businesses.

Late fee and interest are paid electronically through the GST portal using the same Electronic Cash Ledger / Credit Ledger mechanism as regular tax. The returns are blocked from being filed until late fee and interest (if any) are debited from the cash ledger.

Key sources: GST Section 47 — late fee, CBIC GST notifications, GSTN FAQs on GSTR-3B.

Reviewed by FinTax24 Content Team · Review date

We file GST and ITR in Gujarat. Call or WhatsApp for tax help now.

Need help with gst late fee calculator?

Our experts can verify the numbers, plan the next steps, and file on your behalf.