Section 128A GST Waiver of Interest & Penalties & Section 16(4) Retrospective Relief Guide

Executive Overview & Quick Highlights

The Goods and Services Tax (GST) landscape in India underwent a historic legislative transformation with the enactment of the Finance (No. 2) Act, 2024. Addressing years of intense litigation, judicial backlog, and severe departmental demands originating from the initial implementation years of the GST regime (Financial Years 2017-18, 2018-19, and 2019-20), Parliament introduced a landmark statutory amnesty and dispute resolution mechanism under Section 128A of the Central Goods and Services Tax (CGST) Act, 2017, alongside a monumental retrospective amendment to Section 16(4) inserting sub-sections (5) and (6). For corporate tax directors, chief financial officers, MSME entrepreneurs, and practicing tax consultants, this dual legislative relief provides a definitive pathway to extinguish outstanding interest and penalties and regularize disputed Input Tax Credit (ITC) claims without prolonged appellate litigation.

Under Section 128A read with Rule 164 of the CGST Rules, 2017 (notified via Notification No. 20/2024-Central Tax and Circular No. 238/32/2024-GST), taxpayers who are subject to demand notices, statements, or adjudication orders issued strictly under Section 73 (non-fraud cases) for FY 2017-18, FY 2018-19, and FY 2019-20 can obtain a complete, 100% statutory waiver of all accrued interest and penalties by paying the underlying principal tax demand on or before March 31, 2025. Simultaneously, the insertion of Section 16(5) retrospectively extends the deadline for availing Input Tax Credit in respect of invoices or debit notes for FY 2017-18, 2018-19, 2019-20, and 2020-21 up to November 30, 2021, rendering thousands of pending Section 73 and Section 74 ITC disallowance notices legally infructuous.

To navigate this statutory window, tax teams must systematically identify qualifying proceedings, reconcile GSTR-3B vs GSTR-2A/2B ledgers, compute exact tax components excluding interest and penalty, and file electronic applications in Form GST SPL-01 or Form GST SPL-02 on the common portal. Deploying specialized automated tax reconciliation platforms like assureTax and legal notice management workflows via assureNotice enables corporate finance departments to audit liability notices, draft appeal withdrawal applications, and secure conclusive discharge orders in Form GST SPL-05, permanently closing legacy tax exposures.

Statutory Architecture & Legislative Logic

The legislative foundation of the 2024 GST relief architecture operates through two interconnected statutory pillars: the conditional amnesty under Section 128A and the retrospective substantive right created under Section 16(5) and 16(6).

1. Structural Mapping: Section 128A Eligibility & Relief Matrix

Proceedings Stage	Statutory Status & Governing Provision	Application Form & Prescribed Timeline	Conclusive Discharge Form
Show-Cause Notice Stage	Notice issued u/s 73(1) or statement u/s 73(3) where no adjudication order has been passed. [Section 128A(1)(a)]	Pay tax by March 31, 2025; file Form GST SPL-01 within 3 months of payment.	Form GST SPL-05 (Acceptance Order)
Adjudication Order Stage	Order passed by Proper Officer u/s 73(9) where no appeal has been filed. [Section 128A(1)(b)]	Pay tax by March 31, 2025; file Form GST SPL-02 within 3 months of payment.	Form GST SPL-05 (Acceptance Order)
First Appeal / Revision Stage	Order passed by Appellate Authority u/s 107(11) or Revisional Authority u/s 108(1) upholding Section 73 demand. [Section 128A(1)(c)]	Pay tax by March 31, 2025; withdraw further appeal; file Form GST SPL-02 within 3 months.	Form GST SPL-05 (Acceptance Order)
Section 75(2) Re-determination Cases	Notice originally issued u/s 74 where appellate authority directs re-determination u/s 73.	Pay tax within 6 months from the date of the re-determination order; file Form GST SPL-02 within 3 months.	Form GST SPL-05 (Acceptance Order)
Retrospective ITC Claims	Section 16(5) & 16(6) covering ITC availed up to Nov 30, 2021 for FY 2017-18 to FY 2020-21.	If demand relates solely to Section 16(4) timing, apply for rectification/withdrawal under Section 128A or departmental circulars.	Order of Drop of Proceedings / SPL-05

Deep-Dive Technical Mechanics: Rule 164 & The Form GST SPL Workflow

CBIC Notification No. 20/2024-Central Tax inserted Rule 164 into the CGST Rules, 2017, laying down an exhaustive, time-bound procedural code that governs the submission, scrutiny, and approval of waiver applications:

1. Payment of Tax Component: The taxpayer must first deposit the entire amount of tax payable as specified in the notice, statement, or order. Crucially, where the notice includes both eligible tax (e.g., Section 73 non-fraud) and ineligible tax (e.g., erroneous refunds), only the eligible tax component must be paid to secure the waiver on that portion. Payments must be routed through the Electronic Cash Ledger or Electronic Credit Ledger (where permissible for tax liability) via Form GST DRC-03 or return filings.
2. Electronic Application Submission: Following payment, the taxpayer submits an online application on the GST common portal: Form GST SPL-01 for pending notices/statements, or Form GST SPL-02 for orders. The application must attach proof of payment (Challan / DRC-03) and proof of withdrawal of any pending appeal or writ petition.
3. Departmental Scrutiny: The proper officer examines the application within three months from the date of receipt. If the officer is satisfied that the full tax has been paid and all conditions are met, they issue an order in Form GST SPL-05, concluding the proceedings and extinguishing all liability for interest and penalty.
4. Deficiency Notice Protocol: If the officer believes the taxpayer has paid less than the required tax or failed to fulfill conditions, they must issue a show-cause notice in Form GST SPL-03 within three months, detailing the exact shortfall or discrepancy.
5. Taxpayer Response & Final Adjudication: The applicant has thirty days to file a reply in Form GST SPL-04. Upon reviewing the reply, the officer either accepts the waiver via Form GST SPL-05 or rejects the application via a reasoned order in Form GST SPL-07. If rejected, an appeal lies under Section 107 within three months.

8 Real-World Practical Case Studies & Numerical Illustrations

Case Study 1: Complete Waiver Calculation for Adjudicated Order under Section 73

Fact Pattern: Pioneer Auto Ancillaries Private Limited received an adjudication order under Section 73(9) for FY 2018-19 dated November 20, 2023. The order confirmed: (a) Tax Demand: ₹45,00,000 (IGST); (b) Interest under Section 50: ₹32,40,000; and (c) Penalty under Section 73(9): ₹4,50,000 (total demand: ₹81,90,000). The company had filed an appeal before the Commissioner (Appeals) under Section 107, making a 10% pre-deposit of ₹4,50,000. Pioneer wants to settle the matter under Section 128A.

Step-by-Step Settlement Workflow:

1. Remaining Tax to be Paid: The underlying tax liability is ₹45,00,000. Pioneer already deposited ₹4,50,000 as pre-deposit. Therefore, Pioneer deposits the balance tax of ₹40,50,000 via PMT-06 challan in its cash ledger before March 31, 2025.
2. Withdrawal of Appeal: Pioneer files an application for withdrawal of its Section 107 appeal before the Commissioner (Appeals), obtaining a certified withdrawal order.
3. Form GST SPL-02 Filing: Pioneer files Form GST SPL-02 on the GST portal, referencing the original order, attaching the withdrawal order, and linking the ₹4,50,000 pre-deposit and ₹40,50,000 DRC-03 payment.
4. Financial Impact: The proper officer verifies the payment and issues Form GST SPL-05. The entire interest of ₹32,40,000 and penalty of ₹4,50,000 (total ₹36,90,000) are 100% waived. Pioneer saves ₹36.90 Lakh in cash outflow. Automated tax computation in assureTax ensures flawless challan mapping.

Case Study 2: Retrospective Section 16(4) Relief Extinguishes ITC Disallowance Demand

Fact Pattern: Zenith Infotech Private Limited filed its GSTR-3B for March 2020 on October 18, 2020 (within the extended COVID-19 timeline). However, during an audit for FY 2019-20, the department alleged that ITC of ₹18.00 Lakh on tax invoices dated July 2019 was claimed in the GSTR-3B of March 2020, which was filed after the original statutory due date of September 2020 (pre-Finance Act 2022 timeline). The department issued an SCN under Section 73 demanding ₹18.00 Lakh tax, ₹14.50 Lakh interest, and ₹1.80 Lakh penalty.

Statutory Impact of Section 16(5): Under the newly inserted Section 16(5) (introduced by Finance (No. 2) Act, 2024 with retrospective effect from July 1, 2017), any ITC claimed in a return filed under Section 39 up to November 30, 2021 for FY 2017-18, 2018-19, 2019-20, and 2020-21 is statutorily valid and fully regularized. Because Zenith filed the return on October 18, 2020 (well before November 30, 2021), the ITC claim is deemed legally valid. The underlying tax demand becomes NIL. Zenith filed a representation citing Section 16(5) and Circular No. 237/31/2024-GST, compelling the proper officer to drop the entire demand without requiring any tax payment.

Case Study 3: Partial Settlement of Notice Containing Eligible and Ineligible Demands

Fact Pattern: BlueStar Enterprises received a composite show-cause notice under Section 73 for FY 2017-18 demanding: (a) Tax of ₹12.00 Lakh for GSTR-1 vs GSTR-3B turnover mismatch; (b) Tax of ₹8.00 Lakh for alleged delayed ITC claim u/s 16(4); and (c) Erroneous export refund of ₹15.00 Lakh sanctioned contrary to Rule 89(4). Total tax: ₹35.00 Lakh, plus interest of ₹28.00 Lakh and penalty of ₹3.50 Lakh.

Statutory Analysis under Rule 164(4): Under the first proviso to Section 128A(1), the waiver scheme strictly excludes demands relating to erroneous refunds. BlueStar cannot seek waiver for the ₹15.00 Lakh refund demand. Furthermore, the ₹8.00 Lakh Section 16(4) demand is protected by Section 16(5). Therefore, BlueStar pays only the ₹12.00 Lakh turnover mismatch tax before March 31, 2025 and files Form GST SPL-01 for that specific issue. The proper officer issues SPL-05 granting waiver of interest and penalty on the ₹12.00 Lakh demand, while regularizing the ₹8.00 Lakh ITC demand, leaving only the ₹15.00 Lakh refund issue for substantive litigation.

Case Study 4: Section 74 Notice Re-determined under Section 73 pursuant to Section 75(2)

Fact Pattern: Radiant Engineering Limited was issued an order under Section 74(9) for FY 2018-19 alleging fraud and demanding ₹60.00 Lakh tax, ₹48.00 Lakh interest, and 100% penalty of ₹60.00 Lakh. On appeal before the Appellate Authority under Section 107, the Commissioner (Appeals) passed an order on January 10, 2025 holding that the department failed to establish fraudulent intent or suppression of facts, directing the proper officer to re-determine the tax liability under Section 73 as per Section 75(2).

Section 128A Applicability & Timelines: Under Section 128A(1) second proviso read with Rule 164(10), where liability is re-determined under Section 73 pursuant to Section 75(2), the taxpayer is fully entitled to the Section 128A waiver! The taxpayer is granted a special timeline: payment of the re-determined tax must be made within six months from the date of the re-determination order. Radiant pays the ₹60.00 Lakh re-determined tax within 6 months and files Form GST SPL-02, successfully securing a 100% waiver of both the ₹48.00 Lakh interest and the ₹60.00 Lakh penalty!

Case Study 5: Mandatory Appeal Withdrawal & High Court Writ Dismissal

Fact Pattern: Omega Logistics Limited had a pending writ petition before the Bombay High Court challenging a Section 73 demand of ₹30.00 Lakh for FY 2019-20. On February 15, 2025, Omega deposited ₹30.00 Lakh tax and filed Form GST SPL-02, but did not formally withdraw the High Court writ petition, intending to keep it open until the waiver order was received.

Procedural Trap & Rectification: Under Section 128A(1) read with Rule 164(7), the withdrawal of the appeal or writ petition is an indispensable condition precedent. The proper officer issued a deficiency notice in Form GST SPL-03 proposing rejection. Omega immediately moved a formal withdrawal memo before the High Court, obtained an order dismissing the writ petition as withdrawn, and uploaded the certified order in Form GST SPL-04 within 30 days. The officer accepted the application and issued Form GST SPL-05. Tracking notice deadlines through assureNotice prevents rejection pitfalls.

Case Study 6: Electronic Credit Ledger Utilization for Section 128A Payment

Fact Pattern: Sterling Metal Works Private Limited received a Section 73 SCN for FY 2018-19 demanding tax of ₹25.00 Lakh. Sterling had an accumulated balance of ₹40.00 Lakh in its Electronic Credit Ledger (ECL) arising from legitimate raw material inputs. Sterling paid the ₹25.00 Lakh tax liability by debiting its credit ledger through Form GST DRC-03.

Legality of Credit Ledger Utilization: CBIC Circular No. 238/32/2024-GST clarified that because Section 128A requires payment of the "tax payable", and under Section 49(4) of the CGST Act, the Electronic Credit Ledger can be utilized for discharging output tax liability, payment of the tax demand via valid credit ledger debit in DRC-03 is fully permissible and accepted for Section 128A eligibility. The proper officer approved the waiver in Form GST SPL-05 without requiring cash outlays.

Case Study 7: Impact of Incomplete Tax Payment & Form GST SPL-03 Shortfall Notice

Fact Pattern: Global Traders received an adjudication order under Section 73 confirming tax of ₹10.00 Lakh and interest of ₹7.50 Lakh. Global Traders deposited ₹8.50 Lakh tax, claiming that the remaining ₹1.50 Lakh was mathematically erroneous, and filed Form GST SPL-02.

Shortfall Rejection Mechanics: Section 128A requires payment of the entire tax specified in the order. The officer issued Form GST SPL-03 specifying the shortfall of ₹1.50 Lakh. Because Global Traders failed to pay the remaining ₹1.50 Lakh before March 31, 2025, the proper officer issued a final rejection order in Form GST SPL-07. The entire benefit was lost, restoring the full liability for interest (₹7.50 Lakh) and penalties.

Case Study 8: Section 16(6) Refund Ban on Taxes Already Paid

Fact Pattern: Delta Retailers Private Limited suffered a Section 16(4) demand of ₹15.00 Lakh tax and ₹8.00 Lakh interest in 2022 for FY 2018-19. Under departmental pressure, Delta paid the entire ₹23.00 Lakh in March 2023. Following the retrospective insertion of Section 16(5) in August 2024, Delta filed a refund claim under Section 54 seeking refund of the ₹23.00 Lakh paid.

Statutory Prohibition under Section 16(6): Parliament specifically enacted Section 16(6) as an explicit restriction: "No refund shall be made of all the tax, including any interest, penalty or late fee, if any, paid in respect of the said supply before the date of assent of the Finance (No. 2) Act, 2024." The refund application was statutorily rejected. Retrospective regularization shields pending demands, but does not open the treasury for past paid taxes.

Step-by-Step Audit & Compliance Verification Checklist

Step	Compliance Action	Verification & Execution Procedures	Documentation Evidence	Risk Level
1	Notice & Order Inventory Scoping	Extract all pending SCNs, statements, and adjudication orders for FY 2017-18, 2018-19, and 2019-20; verify proceedings are strictly u/s 73.	Notice registry in assureNotice.	High
2	Section 16(4) Demands Segregation	Isolate demands relating to delayed ITC claims; check if return was filed before Nov 30, 2021; draft representation citing Section 16(5).	GSTR-3B filing receipts, invoice ledgers.	High
3	Ineligible Demands Filtering	Ensure no claims are filed for erroneous refunds or Section 74 fraud orders (unless converted to Section 73 u/s 75(2)).	Order classification matrix.	High
4	Tax Component Computation	Calculate exact net tax payable, adjusting pre-deposits and prior partial payments; exclude interest and penalty completely.	Tax audit reconciliation in assureTax.	High
5	Challan Generation & Tax Payment	Deposit 100% of the underlying tax liability on or before March 31, 2025 using Electronic Cash Ledger or permissible Credit Ledger debits.	Form GST PMT-06, DRC-03 receipts.	High
6	Litigation & Appeal Withdrawal	File formal withdrawal applications before Appellate Authority (u/s 107), Tribunal (u/s 112), or High Court/SC; obtain certified withdrawal order.	Certified copy of withdrawal order.	High
7	Electronic SPL-01 / SPL-02 Filing	File Form GST SPL-01 (for notices) or SPL-02 (for orders) on common portal within 3 months of payment; attach payment proofs and withdrawal order.	ARN acknowledgment receipt.	High
8	Shortfall Notice (SPL-03) Tracking	Monitor portal for any deficiency notice in Form GST SPL-03; prepare detailed factual rebuttal in Form GST SPL-04 within 30 days.	SPL-03 notice, SPL-04 reply workpapers.	Medium
9	Discharge Order (SPL-05) Verification	Obtain Form GST SPL-05 confirming complete waiver of interest and penalty; verify ledger balances reflect zero liability.	Form GST SPL-05 conclusive order.	Low
10	Financial Accounts Adjustment	Reverse accrued interest and penalty provisions in books of account; update Schedule III contingent liability disclosures in assureFinancials.	Board notes, journal entries, audit schedules.	Medium

Ecosystem Automation: Maximizing Amnesty Settlement with assureOffice

Executing high-stakes tax amnesty settlements requires end-to-end coordination across statutory notice repositories, computational tax engines, accounting ledgers, and litigation trackers:

• assureTax: Reconciles GSTR-1, GSTR-3B, and GSTR-2A/2B across FY 2017-18 to 2019-20, isolates Section 73 tax components from interest and penalties, and automates DRC-03 payment validations.
• assureNotice: Tracks Section 73 SCNs and adjudication orders, monitors March 31, 2025 payment deadlines, and drafts jurisdiction-tested Form GST SPL-01/02 applications and appeal withdrawal memos.
• assureFinancials: Automates the reversal of disputed tax provisions, updates Schedule III contingent liability notes, and synchronizes post-amnesty balance sheet disclosures.
• assurePractice: Centralizes client amnesty portfolios, coordinates advocate appearances before appellate authorities, and tracks Form GST SPL-05 discharge orders under SA 230 standards.

16 Detailed Practitioner FAQs on Section 128A Waiver & Section 16(4) Relief

1. What is the statutory payment deadline to avail the Section 128A waiver?

The entire tax payable specified in the notice, statement, or order must be paid on or before March 31, 2025 as prescribed under Notification No. 21/2024-Central Tax.

2. Does Section 128A apply to demands for FY 2020-21 or subsequent financial years?

No. Section 128A applies strictly and exclusively to demand notices and orders pertaining to Financial Years 2017-18, 2018-19, and 2019-20. Demands for FY 2020-21 onwards are not eligible for the waiver.

3. Can a taxpayer obtain Section 128A waiver for demands under Section 74?

No. Section 128A applies strictly to proceedings initiated under Section 73 (non-fraud cases). Proceedings initiated under Section 74 (fraud, willful misstatement, suppression of facts) are barred, unless an appellate authority converts the demand to Section 73 under Section 75(2).

4. What relief is provided by the retrospective amendment to Section 16(4)?

Section 16(5) retrospectively provides that for any invoice or debit note pertaining to FY 2017-18, 2018-19, 2019-20, or 2020-21, registered persons are entitled to take ITC in any return filed under Section 39 up to November 30, 2021, overriding earlier deadlines.

5. If a taxpayer already paid a Section 16(4) tax demand in 2022, can they claim a refund under Section 16(5)?

No. Section 16(6) explicitly prohibits the refund of any tax, interest, penalty, or late fee paid in respect of supplies prior to the enactment of the Finance (No. 2) Act, 2024.

6. What forms must be filed to claim the Section 128A waiver?

Taxpayers must file Form GST SPL-01 electronically for pending show-cause notices or statements, and Form GST SPL-02 for adjudication orders, within three months of payment.

7. Can Input Tax Credit (ITC) from the credit ledger be used to pay tax under Section 128A?

Yes. CBIC Circular No. 238/32/2024-GST confirmed that because Section 128A requires payment of the underlying output tax demand, payment through a valid debit to the Electronic Credit Ledger (where legally eligible) via DRC-03 is acceptable.

8. Is it mandatory to withdraw a pending Section 107 appeal before filing Form GST SPL-02?

Yes. Under Section 128A(1) read with Rule 164(7), any appeal pending before the Appellate Authority, Tribunal, or writ petition before High Courts/Supreme Court must be unconditionally withdrawn, and proof of withdrawal must be submitted.

9. What happens if a notice includes both eligible tax and an erroneous refund demand?

Under Rule 164(4), the taxpayer can pay the tax relating to the eligible issues (e.g., turnover mismatch) and claim partial waiver in Form GST SPL-01 for that portion, leaving the erroneous refund demand for normal adjudication.

10. What is the time limit for the proper officer to issue an order in Form GST SPL-05?

The proper officer must verify the application and issue the acceptance order in Form GST SPL-05 within three months from the date of receipt of Form GST SPL-01 or SPL-02.

11. What recourse does the taxpayer have if the proper officer issues a deficiency notice in Form GST SPL-03?

The taxpayer must file a detailed explanation and proof of compliance in Form GST SPL-04 within thirty days of receiving Form GST SPL-03.

12. Can a rejection order in Form GST SPL-07 be appealed?

Yes. Under Section 107 read with Rule 164(14), an order rejecting the waiver application in Form GST SPL-07 is an appealable order before the Appellate Authority (Commissioner Appeals) within three months.

13. Does Section 128A apply to interest under Section 50(1) on delayed filing of returns?

Circular No. 238/32/2024-GST clarified that standalone interest demands under Section 50(1) for delayed filing of GSTR-3B returns (where tax was already paid in the return) are not covered under Section 128A, as Section 128A applies to demand proceedings under Section 73.

14. What happens if an appeal was filed by the department against an order dropping Section 73 demands?

If the department has filed an appeal, the taxpayer can pay the disputed tax and file Form GST SPL-02, which requires the department to conclude proceedings upon verification.

15. Does the Section 128A waiver apply to transitional credit (TRAN-1) demands?

If the transitional credit demand was adjudicated under Section 73 for FY 2017-18, paying the principal tax allows the taxpayer to claim waiver of the associated interest and penalties under Section 128A.

16. What is the status of proceedings once Form GST SPL-05 is issued?

Upon the issuance of Form GST SPL-05, all proceedings in respect of the specified notice or order are deemed conclusively concluded, and no further interest or penalty can ever be demanded on those issues.