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🚨 SECTION 47 + SECTION 50 · ALL RETURN TYPES · CBIC NOTIFIED CAPS

GST Late Fee Calculator FY 2025-26 + Interest

Calculate exact GST late fee under Section 47 and interest under Section 50 at 18% p.a. Covers GSTR-1, GSTR-3B, GSTR-9, GSTR-9C, GSTR-10 with turnover-based caps, NIL return rules, QRMP scheme due dates, and the new 3-year filing bar effective July 2025.

GST Return Details

GSTR-3B: Monthly summary return — due 20th of next month
Per CBIC Notification 07/2023. Max late fee cap depends on this slab.
Today's date or your planned filing date
Net cash liability = Output tax − Eligible ITC. Interest u/s 50 = 18% p.a. on this only.
Section 50(3): Interest @ 24% p.a. on ITC wrongly availed AND utilised.
If tax was paid via challan on time but return filed late → Section 50 interest may not apply, only Section 47 late fee.
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GST Late Fee Calculator

Enter return type, turnover slab, and dates. See exact Section 47 late fee + Section 50 interest with CBIC-notified caps.

  • 📜 Section 47: Daily late fee per return type
  • 📊 Section 50: 18% p.a. interest on net cash liability
  • ⚠️ Section 50(3): 24% p.a. on wrong ITC utilised
  • 🚧 3-year bar: Cannot file after 3 years (Jul 2025)

GST Late Fee Structure — Quick Reference (FY 2025-26)

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GSTR-3B & GSTR-1 (Tax Liability)

Daily Rate: ₹50/day (₹25 CGST + ₹25 SGST)
Cap — AATO ≤ ₹1.5 Cr: ₹2,000
Cap — AATO ₹1.5-5 Cr: ₹5,000
Cap — AATO > ₹5 Cr: ₹10,000

0️⃣

NIL Return (No Supply, No Tax)

Daily Rate: ₹20/day (₹10 CGST + ₹10 SGST)
Cap: ₹500 per return
Applies when no outward supply was made and no tax payable for the period.

📅

GSTR-9 (Annual Return)

AATO ≤ ₹5 Cr: ₹50/day, cap 0.04% turnover
AATO ₹5-20 Cr: ₹100/day, cap 0.04% turnover
AATO > ₹20 Cr: ₹200/day, cap 0.50% turnover
AATO ≤ ₹2 Cr exempt from GSTR-9 filing.

⚠️

GSTR-10 (Final Return)

Daily Rate: ₹200/day (₹100 CGST + ₹100 SGST)
Cap: NO CAP — accumulates indefinitely
Must be filed within 3 months of registration cancellation. Most dangerous return type.

💰

Section 50 — Interest

Delayed tax payment: 18% p.a. on NET cash liability (not gross)
Wrong ITC utilised: 24% p.a. u/s 50(3)
Interest must be paid in CASH only — cannot be set off against ITC.

🚧

3-Year Filing Bar (July 2025)

Effective July 2025: GSTR-1, GSTR-3B, GSTR-9 cannot be filed after 3 years from original due date.
Continued non-filing for 2 consecutive months may trigger GSTIN suspension and Rule 138E e-way bill restrictions.

Real Examples — How Late Fees Compound

✓ SMALL BUSINESS

Trader, AATO ₹80 Lakh

Scenario: March 2026 GSTR-3B filed 30 days late. Net cash tax: ₹40,000.

Late fee: 30 × ₹50 = ₹1,500 (under ₹2K cap)
Interest: ₹40,000 × 18% × 30/365 = ₹591
Total: ₹2,091
⚠ MEDIUM BUSINESS

Manufacturer, AATO ₹8 Crore

Scenario: Two months delayed (60 days). Net tax: ₹3,00,000.

Late fee: 60 × ₹50 = ₹3,000 (under ₹10K cap)
Interest: ₹3,00,000 × 18% × 60/365 = ₹8,877
Total: ₹11,877
🚨 LARGE BUSINESS

Listed Co., AATO ₹50 Crore

Scenario: GSTR-9 (FY 2024-25) filed 180 days late.

Late fee: 180 × ₹200 = ₹36,000 OR 0.50% of ₹50 Cr = ₹25 lakh
(Whichever is LOWER applies) — ₹36,000
☠ WORST CASE

Cancelled Registration, GSTR-10

Scenario: Registration cancelled, GSTR-10 not filed for 365 days.

Late fee: 365 × ₹200 = ₹73,000 — NO CAP
File GSTR-10 within 3 months of cancellation to avoid this.

GST Late Fee 2026 FAQs

Can I pay late fees using my ITC balance?
No. Late fees and Section 50 interest MUST be paid in cash through GST challan (PMT-06). Even if you have ₹5 lakh in your ITC ledger, you cannot use a single rupee against late fees. The GST portal auto-calculates the late fee based on filing date and blocks return submission until paid in cash.
What if I paid tax via challan on time but filed the return late?
If you deposited the tax amount in the electronic cash ledger by the original due date (via PMT-06 challan), but the return itself was filed late: Section 50 interest may not apply on the tax (since government already had the money). However, Section 47 late fee for the return delay still applies. Note: This is a heavily litigated area — keep challan proof and consult your CA.
How is Section 50 interest calculated — gross tax or net cash liability?
Per retrospective amendment effective 1 July 2017: Interest under Section 50 is calculated on NET CASH LIABILITY only, not on gross tax liability.

Formula: Net Cash Liability = Total Output Tax − Eligible ITC

Example: Output tax ₹10L, ITC ₹8L. Net cash liability = ₹2L. Interest @ 18% applies only on ₹2L, not ₹10L. This is a massive relief and the litigation is mostly settled in favour of taxpayers.
What's the new 3-year filing bar from July 2025?
Per Finance Act 2023 (effective July 2025): GSTR-1, GSTR-3B, GSTR-9 cannot be filed after 3 years from the original due date. So a return for July 2022 due 20 August 2022 cannot be filed after 20 August 2025.

Late fees and interest continue to accrue during this window. Continued non-filing for 2 consecutive months also triggers: (a) GSTIN suspension, (b) Rule 138E e-way bill restrictions, (c) Section 29 cancellation proceedings.
NIL return: how is it different from regular return for late fees?
A return is "NIL" when there's no outward supply AND no tax payable for the period. NIL returns have a separate, lower late fee structure:

Daily rate: ₹20/day (₹10 CGST + ₹10 SGST)
Maximum cap: ₹500 per return

Important: Even if you had no business activity, you MUST file the NIL return on time. Just having ITC carried forward doesn't make it a regular return. The system auto-detects based on Table 3.1 (outward supplies) and Table 6 (tax payable) being zero.
QRMP scheme: how do due dates work for quarterly filers?
QRMP (Quarterly Return, Monthly Payment) scheme is for taxpayers with AATO up to ₹5 Crore. Due dates depend on principal place of business:

Category A states (Due 22nd): Maharashtra, Gujarat, Karnataka, MP, Chhattisgarh, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, Goa + UTs (Daman & Diu, Dadra, Puducherry, Andaman & Nicobar, Lakshadweep)

Category B states (Due 24th): All remaining states including UP, Bihar, West Bengal, Punjab, Haryana, Rajasthan, Delhi, J&K, North-Eastern states.

Monthly tax payment via PMT-06 by 25th of each month still required. Only return filing is quarterly.
What's the late fee for GSTR-9C (Reconciliation Statement)?
GSTR-9C is mandatory for AATO > ₹5 Crore (self-certified). Per Circular 246/03/2025-GST (30 Jan 2025): If you file GSTR-9 on time but GSTR-9C late, late fee applies until the full return (9 + 9C together) is submitted.

Late fee structure mirrors GSTR-9 turnover slabs. Notification 08/2025-CT (Jan 2025) provided a one-time waiver of excess fees for FY 2017-18 to 2022-23 if filed by 31 March 2025.
GSTR-10 has no cap — why is this so dangerous?
GSTR-10 (Final Return) must be filed within 3 months of GST registration cancellation. Unlike other returns, it has NO MAXIMUM CAP on late fees.

Math: ₹200/day × 365 days = ₹73,000 in one year.

Many businesses cancel registration, ignore GSTR-10, and discover years later they owe lakhs in accumulated late fees when applying for new registration or PAN-linked services. If your registration has been cancelled, file GSTR-10 IMMEDIATELY.
What changes under GST 2.0 (effective 22 September 2025)?
GST 2.0 implemented a simplified 4-slab structure (0%/5%/18%/40%) effective 22 September 2025. Return filing late fees and interest rules are UNCHANGED under GST 2.0 — Sections 47 and 50 of CGST Act 2017 continue to apply. The Income Tax Act 2025 (effective 1 April 2026) similarly does not affect GST law. Only rate slabs and HSN classifications changed.
How to use GST amnesty schemes to reduce historical late fees?
Government periodically announces amnesty schemes to clear backlogs:

Notification 07/2023-CT: Waived excess late fees for GSTR-9 (FY 2017-18 to 2021-22) if filed between Apr-Jun 2023, capped at ₹20,000.
Notification 08/2025-CT: Waived excess GSTR-9C fees for FY 2017-18 to 2022-23 if filed by 31 March 2025.

Status as of May 2026: No active amnesty scheme. Watch cbic-gst.gov.in for new notifications. Our blog covers each amnesty in detail when announced.
Prabhakar Kumar
⚖️ BUILT BY ICAI CA

Prabhakar Kumar

Chartered Accountant (ICAI, Nov 2019)

Founder of VittSphere Technologies. Practicing CA serving 200+ MSME clients across Pune. 86% win-rate at AO and CIT(A) level tax appeals.

Prabhakar Kumar
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