How to Use This GST Late Fee & Interest Calculator

This is a professional-grade GST Compliance Ledger that computes late fee under Section 47 and interest under Section 50 across multiple pending return periods simultaneously — the same way a CA would compute it. Here is exactly how to use it:

  1. Select Return Type — Choose the GST return for which you want to compute the late fee. The calculator supports GSTR-3B (Monthly and Quarterly/QRMP), GSTR-1 (Monthly and Quarterly/QRMP), GSTR-4, GSTR-7, GSTR-9, GSTR-10, and CMP-08. Select the one applicable to your registration type.
  2. Select Turnover Slab — Choose your annual aggregate turnover slab: Up to ₹1.5 Crore, ₹1.5 Crore to ₹5 Crore, or Above ₹5 Crore. This determines the late fee cap applicable to your GSTR-3B and GSTR-1 returns.
  3. Enter State Turnover (if applicable) — For GSTR-9 late fee computation, state-wise turnover determines the percentage-based cap. Enter your state turnover correctly to get accurate results.
  4. Select Filing From Period — Choose the earliest period from which your returns are pending. The calculator will automatically generate a compliance ledger for all subsequent periods up to your actual filing date.
  5. Enter Actual Filing Date — Enter the date on which you actually filed or plan to file. This is used to compute the exact number of days of delay for each period and the corresponding interest under Section 50.
  6. Enter Net Tax for Each Period — In the generated table, enter the net cash tax liability for each pending period. This is used to compute Section 50 interest at 18% per annum on the unpaid tax amount.
  7. Review the Compliance Ledger and Challan Summary — The table shows Period, Due Date, Delay in days, Late Fee (CGST + SGST separately), Interest, and Total for each period. The Challan Summary at the bottom gives you the grand total split by CGST and SGST — use this to prepare your payment challans before filing.

💡 Pro Tip from our CA Team: Always use this calculator before filing any pending GST return. Knowing your exact liability — including late fee and interest — allows you to prepare the correct challan amount under the correct heads (CGST/SGST) before you open the GST portal. This prevents errors, failed payments and unnecessary re-filing attempts.


Who Files Which GST Return — Complete Taxpayer Guide

Understanding which return applies to your taxpayer category is the foundation of GST compliance. Here is a comprehensive breakdown — find your category and understand exactly which returns this calculator covers for you:

QRMP Scheme

📅 Regular Taxpayers — Quarterly Filers (QRMP)

Who this is: Businesses with annual turnover up to ₹5 crore who have opted for the QRMP scheme.

Returns applicable:

  • GSTR-1 (Quarterly) — by 13th after quarter end
  • GSTR-3B (Quarterly) — by 22nd/24th after quarter end
  • PMT-06 — monthly tax payment by 25th (months 1 & 2 of quarter)

Note: Category A states: 22nd. Category B states: 24th. QRMP taxpayers can use the Fixed Sum Method (35% challan) for PMT-06 — no interest applies even if actual liability is higher, provided payment is made by 25th.

Composition

🏪 Composition Scheme Taxpayers

Who this is: Small businesses with turnover up to ₹1.5 crore (manufacturers and traders) or ₹50 lakh (service providers under special composition) who have opted for Composition Scheme.

Returns applicable:

  • CMP-08 (Quarterly statement-cum-challan) — by 18th after quarter end
  • GSTR-4 (Annual Return) — by 30th April of next financial year

Important: CMP-08 is a statement under Rule 62, NOT a return under Section 39. Therefore, no late fee applies on delayed CMP-08. Only 18% interest under Section 50 applies on delayed tax payment. Late fee applies only on GSTR-4.

Service Providers

💼 Service Sector Businesses

Who this is: IT companies, consultants, professionals, agencies, and all service providers registered under GST.

Returns applicable:

  • GSTR-1 (Monthly or Quarterly based on turnover)
  • GSTR-3B (Monthly or Quarterly based on scheme)
  • GSTR-9 (Annual) — if turnover exceeds ₹2 crore

Key consideration: Service providers frequently have IGST liability on inter-state supplies. Interest under Section 50 applies on the total net cash tax including IGST — ensure your challan covers all three heads correctly.

TDS Deductors

🏛️ Government Bodies & TDS Deductors

Who this is: Government departments, PSUs, local authorities and other entities required to deduct TDS under Section 51 of the CGST Act.

Returns applicable:

  • GSTR-7 — by 10th of the following month

Late fee on GSTR-7: ₹200 per day (₹100 CGST + ₹100 SGST), maximum ₹10,000 per return

Note: TDS not deposited to the government also attracts interest at 18% per annum under Section 50.

Annual Filing

📊 Annual Return Filers (GSTR-9)

Who this is: All regular taxpayers with annual aggregate turnover exceeding ₹2 crore must file GSTR-9. GSTR-9C (self-certified reconciliation statement) is mandatory above ₹5 crore.

Returns applicable:

  • GSTR-9 — by 31st December of next financial year
  • GSTR-9C — self-certified reconciliation (above ₹5 crore)

Late fee on GSTR-9: Slab-wise per Notification 07/2023-CT — see detailed table below

Cancellation

🚫 Cancelled GST Registration (GSTR-10)

Who this is: Taxpayers whose GST registration has been cancelled or surrendered must file GSTR-10 — the Final Return — within 3 months of the cancellation order or effective date of cancellation, whichever is later.

Returns applicable:

  • GSTR-10 (Final Return) — within 3 months of cancellation

Late fee on GSTR-10: ₹200 per day (₹100 CGST + ₹100 SGST), capped at ₹10,000 (₹5,000 CGST + ₹5,000 SGST) per Section 47(2).

Warning: Non-filing of GSTR-10 can block PAN-linked future registrations.

E-Commerce

🛒 E-Commerce Operators

Who this is: Online marketplaces and operators who are required to collect TCS under Section 52 of the CGST Act.

Returns applicable:

  • GSTR-8 (TCS) — by 10th of following month
  • GSTR-1 and GSTR-3B as regular taxpayer
  • GSTR-9B (Annual TCS return)

Note: Sellers on e-commerce platforms can claim TCS credit in their GSTR-3B under “TCS credit received.” Ensure your GSTIN is correctly registered with the marketplace to receive this credit.

New Registration

🆕 Newly Registered Taxpayers

Who this is: Businesses that have recently obtained GST registration — voluntarily or because turnover crossed the threshold (₹40 lakh for goods, ₹20 lakh for services, ₹10 lakh for special category states).

Key points:

  • Filing obligation starts from the effective date of registration
  • NIL returns must be filed even for months with zero transactions
  • Late fee on NIL GSTR-1 and GSTR-3B: ₹500 per return maximum (₹250 CGST + ₹250 SGST) — across all turnover slabs per Notification 19/2021 and 20/2021
  • Use this calculator starting from your registration date to check any pending liability

GST Late Fee Under Section 47 — Complete & Updated Guide

Section 47 of the CGST Act, 2017 governs the levy of late fee for delayed filing of GST returns. The late fee is charged on a per-day basis and accrues from the day after the due date until the actual date of filing. Several notifications have amended the original rates — the structure below reflects the current applicable law.

Late Fee Structure for GSTR-3B and GSTR-1 — Non-NIL Returns

Annual Turnover Slab Late Fee Per Day CGST Component SGST Component Maximum Cap Per Return
Up to ₹1.5 Crore ₹50 per day ₹25 per day ₹25 per day ₹2,000 (₹1,000 CGST + ₹1,000 SGST)
₹1.5 Crore to ₹5 Crore ₹50 per day ₹25 per day ₹25 per day ₹5,000 (₹2,500 CGST + ₹2,500 SGST)
Above ₹5 Crore ₹50 per day ₹25 per day ₹25 per day ₹10,000 (₹5,000 CGST + ₹5,000 SGST)

Late Fee for NIL Returns — GSTR-1 and GSTR-3B

📋 Notification Update — 19/2021 & 20/2021-Central Tax: The maximum late fee for NIL GSTR-1 and NIL GSTR-3B (returns with zero tax liability) is uniformly capped at ₹500 per return (₹250 CGST + ₹250 SGST) across all turnover slabs. This cap applies regardless of how many days the return is delayed. Many calculators and professionals incorrectly apply the higher non-NIL caps to NIL returns — this is legally incorrect.

Return Type Return Status Late Fee Per Day Maximum Cap (All Slabs)
GSTR-3B / GSTR-1 NIL Return (Zero tax liability) ₹20/day (₹10 CGST + ₹10 SGST) ₹500 per return (₹250 CGST + ₹250 SGST)
GSTR-3B / GSTR-1 Non-NIL Return (Tax liability exists) ₹50/day (₹25 CGST + ₹25 SGST) ₹2,000 / ₹5,000 / ₹10,000 (slab-wise)

Late Fee for Other Return Types

Return Type Taxpayer Category Due Date Late Fee Per Day Maximum Cap
GSTR-4 (Annual) Composition Scheme 30th April of next FY ₹200/day (₹100 CGST + ₹100 SGST) NIL returns: ₹500 | Non-NIL: ₹2,000 (per Notification 21/2021-CT)
CMP-08 (Quarterly) Composition Scheme 18th after quarter end ⚠️ NO LATE FEE — CMP-08 is a statement under Rule 62, not a return under Section 39. Only interest at 18% p.a. under Section 50 applies for delayed payment.
GSTR-7 TDS Deductors 10th of following month ₹200/day (₹100 CGST + ₹100 SGST) ₹10,000 per return
GSTR-9 (Annual) Regular Taxpayers (above ₹2 Cr) 31st December of next FY Slab-wise — see table below Slab-wise — see table below
GSTR-10 (Final) Cancelled Registration 3 months from cancellation order ₹200/day (₹100 CGST + ₹100 SGST) ₹10,000 (₹5,000 CGST + ₹5,000 SGST) per Section 47(2)

GSTR-9 Late Fee — Revised Slab-Wise Structure (From FY 2022-23 Onwards)

As per Notification No. 07/2023-Central Tax, the late fee for GSTR-9 has been rationalized into turnover-based slabs effective from FY 2022-23. The earlier flat rate of ₹200 per day with a 0.25% cap no longer applies uniformly:

Annual Aggregate Turnover Late Fee Per Day CGST Component SGST Component Maximum Cap
Up to ₹5 Crore ₹50 per day ₹25 per day ₹25 per day 0.04% of turnover in State/UT
₹5 Crore to ₹20 Crore ₹100 per day ₹50 per day ₹50 per day 0.04% of turnover in State/UT
Above ₹20 Crore ₹200 per day ₹100 per day ₹100 per day 0.25% of turnover in State/UT

⚠️ IGST Component: Late fee under Section 47 is levied only under the CGST Act and the respective SGST Act — there is no separate IGST late fee. However, interest under Section 50 applies on total unpaid tax liability including IGST. This is an important distinction when computing your total compliance liability.

Practical Examples — Late Fee Calculation

Example 1 — Small Business (Up to ₹1.5 Cr) — Non-NIL GSTR-3B Delay

A trader with turnover of ₹80 lakh files GSTR-3B for April 2025 on 15th June 2025 instead of 20th May 2025.

Delay = 26 days (21st May to 15th June 2025)

Late fee = 26 days × ₹50/day = ₹1,300

Maximum cap for this turnover slab = ₹2,000

Since ₹1,300 is below the cap of ₹2,000, the cap does not apply here.

Late Fee Payable: ₹1,300 (₹650 CGST + ₹650 SGST)

Example 2 — NIL Return Filer — GSTR-3B Delayed by 90 Days

A registered taxpayer with zero tax liability (NIL return) delays GSTR-3B filing by 90 days.

Computed late fee = 90 days × ₹20/day = ₹1,800

However — the maximum cap for NIL returns under Notification 19/2021 = ₹500 per return

The cap applies because ₹1,800 exceeds ₹500.

Actual Late Fee Payable: ₹500 (₹250 CGST + ₹250 SGST) — NOT ₹1,800

Example 3 — Medium Business (₹1.5 Cr to ₹5 Cr) — 4 Months GSTR-3B Pending

A manufacturer with turnover of ₹3 crore has GSTR-3B pending for January to April 2025, filing all on 30th April 2025.

January: Due 20th Feb → filed 30th Apr = 69 days × ₹50 = ₹3,450 (below ₹5,000 cap)

February: Due 20th Mar → filed 30th Apr = 41 days × ₹50 = ₹2,050

March: Due 20th Apr → filed 30th Apr = 10 days × ₹50 = ₹500

April: Filed on time → Nil late fee

Total Late Fee: ₹3,450 + ₹2,050 + ₹500 = ₹6,000 (₹3,000 CGST + ₹3,000 SGST)

Example 4 — Composition Taxpayer — CMP-08 Delayed

A composition dealer delays CMP-08 for Q1 (April-June 2025) by 45 days beyond the 18th July 2025 due date. Net tax payable: ₹50,000.

Late fee on CMP-08 = NIL (CMP-08 is not a return under Section 39 — no late fee applies)

Interest under Section 50 = ₹50,000 × 18% ÷ 365 × 45 days = ₹1,110

Total Liability: ₹0 late fee + ₹1,110 interest = ₹1,110 (payable in cash only)


GST Interest Under Section 50 — Delayed Tax Payment

Section 50 of the CGST Act imposes interest on the delayed payment of GST. This is separate from — and in addition to — the late filing fee under Section 47. The two are frequently confused but have fundamentally different triggers, rates and computation bases.

Section 50(1) — Delayed Tax Payment

Interest at 18% per annum is charged when:

  • Tax is paid after the due date of GSTR-3B
  • There is a shortfall in tax payment compared to actual liability
  • Tax collected but not deposited to the government within due date

Formula:

Net Cash Tax × 18% ÷ 365 × Days Delayed

Important amendment: Per the Finance Act 2021 (retrospective from 1st July 2017), interest applies only on the portion of tax paid from the Electronic Cash Ledger — not on ITC utilized. However, this benefit applies only when the return is filed — if no return is filed, interest on gross liability continues.

Section 50(3) — Wrongly Availed ITC

Interest at 18% per annum is charged when:

  • Input Tax Credit is wrongly availed and utilised
  • Fraudulent ITC is claimed and used
  • ITC reversed but wrongly reclaimed

Important correction per Finance Act 2022: Section 50(3) was amended retrospectively from 1st July 2017 to reduce the interest rate from 24% to 18% per annum. The earlier 24% rate is now legally obsolete. Interest at 18% applies uniformly on both delayed payment and wrongly utilised ITC.

Interest Computation — Period by Period Reference

Return / Statement Tax Payment Due Date Interest Starts From Rate Basis
GSTR-3B (Monthly) 20th of following month 21st of following month 18% p.a. Net cash tax paid
GSTR-3B (QRMP — Category A) 22nd of month after quarter 23rd of month after quarter 18% p.a. Net cash tax paid
GSTR-3B (QRMP — Category B) 24th of month after quarter 25th of month after quarter 18% p.a. Net cash tax paid
CMP-08 (Composition) 18th of month after quarter 19th of month after quarter 18% p.a. Self-assessed tax amount
PMT-06 (QRMP Monthly Payment) 25th of months 1 & 2 of quarter 26th of respective month 18% p.a. Shortfall over Fixed Sum Method (if used)
Wrongly availed and utilised ITC Date of ITC utilisation Same date 18% p.a. Amount of excess ITC utilised

Example — Section 50 Interest Calculation

A business had a net cash tax liability of ₹2,00,000 for GSTR-3B of March 2025 (due 20th April 2025) but filed and paid on 20th June 2025.

Days of delay = 61 days (21st April to 20th June 2025)

Interest = ₹2,00,000 × 18% ÷ 365 × 61 days

= ₹2,00,000 × 0.18 ÷ 365 × 61

Section 50 Interest = ₹6,010 payable in cash — in addition to any late fee under Section 47


Late Fee vs Interest — Critical Differences

Parameter Late Fee — Section 47 Interest — Section 50
Legal Section Section 47 of CGST Act Section 50 of CGST Act
What Triggers It Delay in FILING the return Delay in PAYMENT of tax
Applies on NIL Returns Yes — even on zero tax returns No — only when tax is unpaid
Applies on CMP-08 No — CMP-08 is a statement, not a return Yes — 18% on delayed payment
Rate ₹20–₹200 per day (fixed, capped) 18% per annum (uncapped, accrues daily)
Maximum Limit Yes — capped per return type and slab No cap — continues until payment
IGST Component No IGST late fee Yes — IGST interest is applicable
Waiver Mechanism Through government notifications / amnesty schemes Rarely — only in specific amnesty notifications
Payment Mode Cash only — ITC cannot be used Cash only — ITC cannot be used

🚨 Critical Point — Both Must Be Paid in Cash: Neither late fee under Section 47 nor interest under Section 50 can be paid using Input Tax Credit from the Electronic Credit Ledger. Even if you have crores of ITC balance, these amounts must be paid in cash from the Electronic Cash Ledger. This is one of the most common errors leading to demand notices from the GST department — always verify your cash ledger balance before filing delayed returns.


GST Compliance Calendar — Due Dates by Taxpayer Category

Monthly Compliance — Regular Taxpayers

By This Date What to File / Pay Who Consequence of Missing
10th GSTR-7 (TDS Return) TDS Deductors under Section 51 ₹200/day late fee + 18% interest on TDS not deposited
11th GSTR-1 (Monthly Outward Supplies) Regular taxpayers — monthly filers Late fee applies + GSTR-3B filing gets blocked on portal
13th GSTR-1 (Quarterly — QRMP) QRMP scheme taxpayers Late fee applies on GSTR-1 separately
20th GSTR-3B + Full Tax Payment Regular monthly filers Late fee per slab + 18% interest on net cash tax unpaid
22nd / 24th GSTR-3B + Full Tax Payment (Quarterly) QRMP scheme taxpayers Late fee + 18% interest on shortfall
25th PMT-06 (Monthly Tax Payment) QRMP taxpayers — months 1 & 2 of quarter 18% interest on shortfall (Fixed Sum Method protects against interest if 35% challan paid)

Quarterly Compliance Calendar

Quarter CMP-08 Due Date GSTR-1 (QRMP) GSTR-3B (Cat A) GSTR-3B (Cat B)
Q1 (Apr–Jun) 18th July 13th July 22nd July 24th July
Q2 (Jul–Sep) 18th October 13th October 22nd October 24th October
Q3 (Oct–Dec) 18th January 13th January 22nd January 24th January
Q4 (Jan–Mar) 18th April 13th April 22nd April 24th April

Annual Compliance Deadlines

Return Who Must File Due Date Late Fee (Updated)
GSTR-4 Composition taxpayers 30th April of next FY ₹200/day — capped at ₹500 (NIL) or ₹2,000 (non-NIL) per Notification 21/2021
GSTR-9 Regular taxpayers (turnover above ₹2 crore) 31st December of next FY ₹50/₹100/₹200 per day — slab-wise cap at 0.04% or 0.25% of state turnover
GSTR-9C Taxpayers above ₹5 crore turnover 31st December of next FY Filed together with GSTR-9 — same late fee applies

✅ Compliance Tips from Our CA Team:

1. Set calendar reminders 5 days before each due date — not on the due date itself. The GST portal frequently experiences high traffic on due dates causing technical delays.

2. Always file GSTR-1 before GSTR-3B for the same period — the portal blocks GSTR-3B filing if GSTR-1 is pending (for monthly filers).

3. QRMP taxpayers using the Fixed Sum Method for PMT-06 — paying 35% of the previous quarter’s challan by the 25th protects against interest even if actual liability turns out higher.

4. Maintain sufficient balance in your GST cash ledger before the 20th of each month — late fee and interest cannot be paid from ITC.

5. File NIL returns on time — even zero-tax months require filing, and the late fee (though capped at ₹500) accumulates across multiple months quickly.


GST Amnesty Schemes — History and What to Expect

The GST Council has periodically announced amnesty schemes to allow taxpayers with large backlogs of unfiled returns to regularise their compliance at reduced late fees. These schemes are time-limited and must be availed proactively:

Amnesty Scheme 2021 — June to August 2021

Late fee waived for GSTR-3B returns from July 2017 to April 2021 for NIL return filers. Non-NIL filers got a capped late fee of ₹500 per return (₹250 CGST + ₹250 SGST). This covered nearly 4 years of backlog and was the most comprehensive scheme announced under GST.

GSTR-4 Amnesty — April to June 2022

Composition taxpayers with pending GSTR-4 returns from FY 2017-18 to FY 2021-22 could file with a maximum late fee of ₹500 per return for NIL returns and ₹2,000 for non-NIL returns — significantly lower than the standard late fee for the extended delay periods involved.

GSTR-10 Amnesty — April to June 2023

Taxpayers with pending final returns (GSTR-10) were allowed to file with a maximum late fee of ₹1,000 per return (₹500 CGST + ₹500 SGST) — well below the standard cap of ₹10,000 under Section 47(2). This was a significant relief for cancelled taxpayers with outstanding GSTR-10 obligations.

Broad Amnesty Scheme 2023 — April to June 2023

Covered GSTR-1, GSTR-3B and GSTR-4 returns from July 2017 to March 2023. Late fee was capped at ₹20,000 per return (₹10,000 CGST + ₹10,000 SGST) for non-NIL returns. Multiple return types were covered simultaneously — making it the broadest amnesty since GST inception.

Section 128A — Interest and Penalty Waiver 2024-25

Budget 2024 introduced Section 128A providing a one-time waiver of interest and penalty for demands relating to FY 2017-18, 2018-19 and 2019-20 where no fraud or suppression is involved. Taxpayers must pay the full principal tax demand to avail this waiver. Applications must be filed within prescribed timelines — consult a CA before applying as the conditions are specific.

⚠️ Strategy Note: If you have a significant backlog of unfiled returns with large accumulated late fees, it is worth waiting to file during an amnesty window rather than paying full late fees. However, this approach carries the risk of enforcement action — GST officers can initiate Best Judgement Assessment under Section 62, cancel your registration, or block E-Way Bills during the waiting period. Always consult a CA before deciding to defer filing large backlogs.


Consequences of Non-Filing — Beyond Late Fees

Late fees and interest are the immediate financial consequences. But persistent non-filing of GST returns carries operational and legal consequences that can severely disrupt your business:

Operational

⛔ E-Way Bill Generation Blocked

If GSTR-3B is not filed for two consecutive months (monthly filers) or one consecutive quarter (QRMP filers), the GST portal automatically blocks E-Way Bill generation. Movement of goods requires an E-Way Bill above ₹50,000 — this effectively halts your business operations without any court order.

Commercial

📉 Buyers Cannot Claim ITC

When you fail to file GSTR-1, your outward supplies do not appear in your buyers’ GSTR-2B. This means your customers cannot claim Input Tax Credit on purchases from you. Large corporate buyers and government entities actively monitor GSTR-2B — persistent non-filing will cost you clients and purchase orders.

Legal

🚫 Registration Cancellation

A GST officer can initiate suo-moto cancellation of your registration if GSTR-3B is not filed for six consecutive months (monthly filers) or two consecutive quarters (QRMP filers). Once cancelled, you cannot make taxable supplies and must either apply for revocation immediately or wind up GST-related business activities.

Legal

⚖️ Best Judgement Assessment

Under Section 62, if you fail to file a return, the GST officer can assess your tax liability based on available information and issue a demand order. Such assessments are typically unfavourable to the taxpayer — officers apply conservative assumptions. Filing your actual return within 30 days of a Section 62 order withdraws the assessment, but interest continues to accrue.

Financial

🏦 Bank Account Attachment

Under Section 83, where a demand is pending and the officer believes tax dues may not be recoverable, bank accounts, receivables and other assets can be provisionally attached without a court order. This power is increasingly exercised by GST authorities for taxpayers with large outstanding demands and persistent non-compliance.

Reputational

📊 GST Compliance Rating Impact

The GST portal maintains a compliance rating for every GSTIN based on timely filing, accuracy and tax payment discipline. A poor rating is visible to all your buyers and suppliers. Large enterprises, PSUs and government departments increasingly screen their vendors’ GST compliance ratings — non-compliance can disqualify you from tenders and procurement processes.


Frequently Asked Questions — GST Late Fee & Interest

Can I pay GST late fee and interest using Input Tax Credit?
No — this is one of the most common misconceptions in GST compliance. Both late fee under Section 47 and interest under Section 50 must mandatorily be paid in cash from the Electronic Cash Ledger. Input Tax Credit available in the Electronic Credit Ledger cannot be used for either purpose. This is an absolute restriction under the GST law — even if you have crores of ITC balance, you must maintain sufficient cash in your GST account to cover late fees and interest before filing delayed returns. Failure to pay these amounts in cash will result in the portal flagging your return as incomplete.
What is the correct late fee for a NIL GSTR-3B filed after 6 months of delay?
The late fee is ₹500 per return (₹250 CGST + ₹250 SGST) — regardless of how many days the NIL return is delayed and regardless of your turnover slab. This cap was introduced via Notification No. 19/2021-Central Tax and applies uniformly. A 6-month delay on a NIL return would theoretically compute to ₹20 × 180 = ₹3,600 — but the statutory cap of ₹500 overrides this. This is a key relief for taxpayers with large backlogs of NIL period returns.
Does late fee apply on CMP-08 for delayed filing by composition taxpayers?
No. CMP-08 is a quarterly statement-cum-challan filed under Rule 62 of the CGST Rules — it is not a return filed under Section 39 of the CGST Act. Section 47 levies late fees only on returns filed under Sections 39, 44 or 45. Since CMP-08 falls outside this scope, no late fee applies on delayed CMP-08 filing. However, the delayed payment of tax through CMP-08 does attract interest at 18% per annum under Section 50 from the due date (18th of the month following the quarter) to the actual date of payment. The annual GSTR-4 filed by composition taxpayers is a return under Section 44 — late fee does apply on delayed GSTR-4.
Is interest under Section 50 charged on the gross tax or net tax after ITC?
Following the amendment to Section 50 vide the Finance Act 2021 (effective retrospectively from 1st July 2017), interest is charged only on the net cash tax paid — that is, the portion of tax actually discharged through the Electronic Cash Ledger. Tax paid via ITC does not attract interest. This was a major taxpayer-friendly amendment after years of litigation. However, there is an important caveat — if no return is filed at all, the interest computation reverts to gross liability until the return is filed. The benefit of net cash computation is only available once the return is actually filed and the ITC utilization is reflected in the system.
What is the revised late fee for GSTR-9 (Annual Return) from FY 2022-23 onwards?
Notification No. 07/2023-Central Tax rationalized the GSTR-9 late fee into three turnover-based slabs effective from FY 2022-23. For taxpayers with turnover up to ₹5 crore: ₹50 per day capped at 0.04% of turnover in the State/UT. For turnover between ₹5 crore and ₹20 crore: ₹100 per day capped at 0.04%. For turnover above ₹20 crore: ₹200 per day capped at 0.25%. This is a significant reduction from the earlier flat rate of ₹200 per day with a 0.25% cap for all taxpayers. The old rates may still apply for returns relating to FY 2021-22 and earlier — check the specific notification applicable to the year for which you are filing.
What is the interest rate for wrongly availed and utilised ITC under Section 50(3)?
The Finance Act 2022 retrospectively amended Section 50(3) with effect from 1st July 2017, reducing the interest rate on wrongly availed and utilised ITC from 24% to 18% per annum. This means the 24% rate that was widely cited and applied in the early years of GST is now legally obsolete — all interest computations on excess ITC utilization should use 18% per annum, even for periods before the 2022 amendment. If you received a demand with 24% interest on excess ITC, this is a valid ground for rectification or appeal.
What is the late fee cap for GSTR-10 (Final Return after cancellation)?
Section 47(2) of the CGST Act specifically caps the late fee for GSTR-10 at ₹10,000 (₹5,000 CGST + ₹5,000 SGST). This is the statutory maximum — no matter how long the delay, the late fee cannot exceed ₹10,000. Despite this cap, filing GSTR-10 promptly is critical because non-filing can block your PAN from being linked to future GST registrations and can attract Best Judgement Assessment by the GST officer. During the 2023 amnesty scheme for GSTR-10, this cap was temporarily reduced to ₹1,000 — watch for similar schemes if you have a pending GSTR-10.
How do I generate the challan to pay GST late fee and interest?
There are two ways. The most common approach is to file your pending return directly — for GSTR-3B, the portal auto-populates the applicable late fee in the return itself, and the system generates the payment requirement automatically. You then pay via the Electronic Cash Ledger before submitting. Alternatively, for advance payment, go to the GST portal → Services → Payments → Create Challan, select “Fee and Penalty” under CGST and SGST for late fee, and “Interest” under the applicable heads for interest. Enter the exact CGST and SGST amounts separately as computed by this calculator. After payment, the CRN (Challan Reference Number) reflects in your cash ledger and can be used when filing the pending return. Note that interest on IGST liability should be paid under the IGST interest head.
Should I file pending returns from 2017-18 now or wait for an amnesty scheme?
This is a decision that depends on several factors specific to your situation — and we strongly recommend consulting a CA before deciding. If you file now, late fees at current rates (though capped) will apply for the full delay period, plus interest continues to accrue on any unpaid tax until the date of actual payment. If you wait for an amnesty scheme, you risk enforcement action in the interim — GST officers are increasingly initiating Best Judgement Assessments and cancellation proceedings against long-standing defaulters. The right strategy depends on the number of pending returns, the total tax liability involved, whether your registration is still active, and the enforcement climate in your GST jurisdiction. Our CA team regularly advises clients on backlog clearance strategies — reach out before deciding.

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