Supplier GST Default Cannot Automatically Deny Bona Fide Buyer’s ITC

By Khanindra Das Goods and Services Tax News September 27, 2026

Summary: A recurring GST dispute arises where a buyer purchases goods or services from a supplier who was validly registered and apparently compliant at the time of the transaction, pays the full invoice value including tax through banking channels and subsequently faces denial or blocking of input tax credit because of the supplier’s later default, retrospective registration cancellation or alleged fraud. Three distinct routes of departmental action arise: adjudication under Sections 73 or 74, retrospective cancellation of the supplier’s registration and provisional blocking of the buyer’s electronic credit ledger under Rule 86A. Decisions including LGW Industries Ltd. v. Union of India, Gargo Traders v. Joint Commissioner, Commercial Taxes, Safecon Lifescience, Sri Padmavathi Marketing and K.K. Alloys provide important safeguards against mechanical action. The emerging jurisprudence emphasises genuine transactions, documentary evidence, nexus between the taxpayer and alleged wrongdoing, and the statutory limits of Rule 86A. Buyers should therefore preserve invoices, e-way bills, transport records, banking evidence and return reconciliations and use the applicable administrative and judicial remedies promptly.

I. Introduction
II. Three Distinct Routes of Departmental Action
III. Retrospective Cancellation of the Supplier's Registration
IV. The Safecon Lifescience Line: Intelligence Is Not Evidence
V. Rule 86A: The Sharper and Less Accountable Instrument
VI. Circular 183/15/2022-GST: The Administrative Safety Valve
VII. Consequences for the Bona Fide Buyer
VIII. Legal Remedies: A Layered Strategy
IX. Concluding Observations
References

I. Introduction

A recurring pattern in the enforcement of the goods and services tax regime may be stated thus: a registered buyer purchases goods or services from a supplier who is, at the time of the transaction, validly registered and apparently compliant; the buyer pays the full invoice value, including the tax component, through banking channels; and some months or years later, the department discovers that the supplier has either failed to remit the collected tax, had its registration cancelled with retrospective effect, or is alleged to be a non-existent or fraudulent entity altogether. The response of the department, in a significant proportion of such cases, is to proceed not against the supplier but against the buyer — reversing the buyer’s input tax credit, raising a demand with interest, or, more drastically, blocking the buyer’s electronic credit ledger under Rule 86A of the Central Goods and Services Tax Rules, 2017 (“the CGST Rules”) before any adjudication has commenced. Whether this response is lawful, and what recourse is available to a buyer confronted with it, forms the subject of this article. Where an earlier piece in this series examined the constitutional challenge to Section 16(2)(c) of the Central Goods and Services Tax Act, 2017 (“the CGST Act”), this article is concerned with the narrower and more immediately practical question of how that provision, and the allied instrument of Rule 86A, are being deployed against buyers in practice, and the manner in which the constitutional courts, in a series of decisions rendered through 2025 and 2026, have circumscribed their use.

II. Three Distinct Routes of Departmental Action

At the outset, it is necessary to distinguish between three mechanisms by which the department may act against a buyer for a supplier’s default, since each carries a different procedural posture and a different remedy. The first is the ordinary demand route under Section 73 or Section 74 of the CGST Act, whereby input tax credit (“ITC”) is reversed on the footing that Section 16(2)(c)’s condition — actual payment of tax by the supplier — has not been satisfied, following an adjudication in which the buyer is at least entitled to a show cause notice and a hearing. The second is retrospective cancellation of the supplier’s own GST registration, used by the department to argue, often years after the transaction, that the buyer never dealt with a “registered” person at all within the meaning of Section 16(2)(b). The third, and by far the most disruptive, is provisional blocking of the buyer’s own electronic credit ledger under Rule 86A — an administrative act requiring no prior notice or hearing, capable of freezing a business’s working capital overnight on the strength of nothing more than “reasons to believe” recorded in writing by the Commissioner or an officer authorised by him.

III. Retrospective Cancellation of the Supplier’s Registration

The Calcutta High Court addressed the second of these routes — retrospective cancellation — in M/s LGW Industries Ltd. v. Union of India (13 December 2021), holding that where the underlying transactions genuinely predated the cancellation of the supplier’s registration, the buyer’s ITC could not be denied merely because the department later cancelled that registration with retrospective effect. The Court reasoned that a buyer dealing with a counterparty who held a valid, subsisting GST registration at the time of the transaction cannot be expected to anticipate or discover a cancellation that the department itself effects only afterwards, often for reasons entirely unconnected with the specific transaction in question. The same principle was reaffirmed in Gargo Traders v. Joint Commissioner, Commercial Taxes (State Tax) (12 June 2023), and the position may now be regarded as settled within that jurisdiction: retrospective cancellation of a supplier’s registration is a fact relevant to the department’s own recovery action against the supplier, but it does not, by itself, unwind a bona fide buyer’s credit where the buyer can otherwise establish that the transaction was genuine.

IV. The Safecon Lifescience Line: Intelligence Is Not Evidence

A more recent, and for the practitioner more instructive, illustration is furnished by the line of authority culminating in the Supreme Court’s dismissal, on 17 July 2026, of the department’s special leave petition in Additional Commissioner Grade 2 v. M/s Safecon Lifescience Private Limited, thereby affirming the Allahabad High Court’s judgment of 9 September 2025. Safecon had purchased pharmaceutical products from a supplier who was, at the time, both a validly registered dealer and a licensed drug manufacturer, against a tax invoice supported by an e-way bill and a transporter’s bilty, with payment made through banking channels and both parties having filed their GSTR-1 and GSTR-3B returns reflecting the transaction. Subsequently, acting on intelligence gathered by a central intelligence unit — never disclosed to Safecon — the department issued a show cause notice under Section 74 alleging that the supplier had itself purchased from non-tax-paying firms and that the supplier’s registration had subsequently been cancelled, and confirmed a demand against Safecon on that basis. The Allahabad High Court quashed the demand, holding that once actual movement of goods and payment of tax are established through the returns of both parties and remain unrebutted, Section 74 proceedings — which require a specific finding of fraud, wilful misstatement or suppression by the recipient itself — cannot be sustained on undisclosed departmental intelligence relating to conduct several steps removed from the buyer; the Court observed pointedly that the order had been passed “with closed eyes” on material Safecon was never given the opportunity to meet. The ruling drew on the Supreme Court’s earlier holding in Continental Foundation Joint Venture Holding v. Commissioner of Central Excise, Chandigarh-I, on the evidentiary threshold required before an extended period of limitation or an allegation of suppression can be sustained, and on CBIC’s own Instruction No. 05/2023-GST, which cautions field officers against mechanically extending an upstream irregularity to a downstream, unconnected buyer. The dismissal of the department’s special leave petition renders the High Court’s judgment final and, although a dismissal at the threshold does not by itself declare law under Article 141 of the Constitution (Kunhayammed v. State of Kerala, (2000) 6 SCC 359), it lends considerable weight to the High Court’s reasoning and squarely reinforces the documentary checklist — valid invoice, e-way bill, transporter records, banking-channel payment, and reconciled returns on both sides — that a buyer must be able to produce to withstand a challenge of this nature.

V. Rule 86A: The Sharper and Less Accountable Instrument

If the demand route at least affords a buyer the ordinary protections of adjudication, Rule 86A offers none of them at the outset. It permits a Commissioner, or an officer authorised by him, to block a registered person’s electronic credit ledger to the extent of credit considered fraudulently availed or ineligible, without prior notice, on the strength of recorded reasons alone — a power whose evident purpose, protecting revenue against dissipation of credit pending investigation, has made it an increasingly favoured first response to any suspicion touching a taxpayer’s supply chain. Two decisions rendered in the first half of 2026 have materially curtailed its availability against a bona fide buyer.

In Sri Padmavathi Marketing v. Assistant Commissioner of Commercial Taxes (4 March 2026), the Karnataka High Court was confronted with a variant of the problem: the department sought to block the petitioner’s own credit ledger on the ground that a recipient further down the chain had used the petitioner’s invoices to claim fraudulent credit without actual supply. The Court held that Rule 86A may be invoked only where the credit is fraudulently availed or ineligible in the hands of the very person whose ledger is being blocked, enumerating the situations the rule actually contemplates — credit availed on invoices from non-existent suppliers, credit availed without receipt of the underlying goods or services, credit corresponding to tax that has not reached the Government, or a claimant who is itself non-existent or lacks valid supporting documents — and held that an allegation directed at a different person in the chain does not satisfy any of these conditions and cannot found a blocking order against a party once removed from the alleged wrongdoing. The principle applies with equal, and perhaps greater, force to the more common scenario this article addresses: a buyer whose own purchases, invoices and payments are entirely in order cannot have its ledger blocked merely because its supplier, somewhere upstream, is the subject of investigation, unless the department can show the buyer’s own availment was itself fraudulent or ineligible.

The second decision is concerned with the extent of blocking rather than its target. In Union of India v. M/s K.K. Alloys, the Supreme Court, on 22 June 2026, dismissed the department’s appeals against a Punjab and Haryana High Court ruling and held that Rule 86A is a preventive measure confined to the ITC actually standing to a taxpayer’s credit at the time the blocking order is made; it does not authorise “negative blocking” — freezing an amount exceeding the existing balance so as to pre-emptively capture credit the taxpayer might accrue in the future. Any recovery of amounts beyond what is presently available in the ledger, the Court held, must proceed through the ordinary adjudication and recovery machinery of Sections 73, 74 or, where applicable, 74A, rather than through the administratively expedient, but procedurally attenuated, route of Rule 86A. Read together with a further line of High Court authority — including a Calcutta High Court direction requiring a post-decisional hearing where a substantial sum has been blocked, and Karnataka High Court criticism of blocking orders passed on “borrowed satisfaction” rather than the blocking officer’s own independent application of mind — the current position is that Rule 86A survives judicial scrutiny only where it is used narrowly, against the taxpayer’s own demonstrably tainted credit, within the taxpayer’s own existing balance, and accompanied at minimum by a prompt opportunity to be heard.

VI. Circular 183/15/2022-GST: The Administrative Safety Valve

Before invoking the writ jurisdiction of the High Court, a buyer facing an ITC denial rooted purely in a GSTR-2A/GSTR-3B mismatch for the financial years 2017-18 and 2018-19 has recourse to a less onerous administrative remedy under CBIC Circular No. 183/15/2022-GST, dated 27 December 2022. Where the discrepancy attributable to a particular supplier for either of those years does not exceed ₹5 lakh, the recipient must produce a certificate from the concerned supplier to the effect prescribed by the Circular. Where the discrepancy exceeds that threshold, the recipient must instead produce a certificate from the supplier’s own chartered accountant or cost accountant — bearing a Unique Document Identification Number verifiable on the ICAI or ICMAI portal — confirming that the invoices in question correspond to supplies actually made to the recipient and that the supplier has accounted for the corresponding tax in its own GSTR-3B returns. This mechanism, though confined in Circular No. 183/15/2022-GST itself to the two financial years the Circular addresses, remains directly relevant to a large volume of legacy disputes still working their way through adjudication and appeal, and exhausting it before litigating is generally the more efficient course wherever it is available on the facts.

VII. Consequences for the Bona Fide Buyer

The practical consequences of an adverse action along any of these three routes are cumulative rather than mutually exclusive. A demand confirmed under Section 73 or 74 may carry interest under Section 50 where the statutory requirements for interest are satisfied and, where the department frames the case under Section 74, exposes the buyer to the applicable penalty; that exposure, however, arises only where the department independently establishes fraud, wilful misstatement or suppression of facts on the part of the buyer itself — the threshold articulated in Safecon Lifescience and Continental Foundation Joint Venture. A Rule 86A blocking order, even where ultimately set aside, operates immediately and without notice, freezing working capital that many businesses rely on to fund ongoing purchases, and the reputational and banking consequences of a blocked credit ledger — particularly for a business seeking working-capital finance secured against its receivables — frequently outlast the legal dispute itself. A retrospective cancellation of a supplier’s registration, even where the buyer’s own ITC ultimately survives on the strength of LGW Industries and Gargo Traders, typically triggers a period of protracted correspondence and, not infrequently, litigation before that survival is confirmed.

VIII. Legal Remedies: A Layered Strategy

The remedies available to a bona fide buyer are best understood as layered, corresponding to the stage at which the department’s action is encountered. At the transactional stage, the most valuable protection is prospective rather than remedial: verifying a prospective supplier’s registration status, filing history and return-filing pattern before contracting, and retaining e-way bills, transporter records and banking-channel payment evidence as a matter of routine, since it is precisely this documentary record that proved decisive in both the LGW Industries and Safecon Lifescience lines. Where a GSTR-2A/3B mismatch for FY 2017-18 or 2018-19 is the sole ground of denial, the Circular 183 certification route should be pursued in the first instance. Where the department proceeds by way of a Section 73 or 74 notice, the buyer’s reply should insist, following Suncraft Energy Pvt. Ltd. v. Assistant Commissioner, State Tax (Calcutta High Court, 2 August 2023, the department’s special leave petition having been dismissed on 14 December 2023) and M/s D.Y. Beathel Enterprises v. State Tax Officer (Data Cell) (Madras High Court, 24 February 2021) — both of which require the department first to proceed against the defaulting supplier — and now Safecon Lifescience, that the department disclose the material it relies upon and first pursue action against the supplier, and should affirmatively place the full documentary record — invoice, e-way bill, transport evidence, banking proof, and both parties’ returns — before the adjudicating authority rather than leaving it to be inferred. Where the department instead moves directly to block the electronic credit ledger under Rule 86A, the buyer should examine, before any other step, whether the blocking order identifies fraud or ineligibility in the buyer’s own hands as required by Sri Padmavathi Marketing, and whether it exceeds the buyer’s existing ledger balance contrary to K.K. Alloys — either defect, on the current state of authority, is sufficient to have the order set aside on writ, and a prompt post-decisional hearing should in any event be demanded pending that challenge. Finally, and independent of the outcome of any of these proceedings, a buyer who has paid the tax component to a supplier who subsequently defaulted retains a civil remedy against that supplier, and, as a matter of commercial prudence rather than statutory entitlement, a contractual indemnity negotiated at the inception of the relationship affords the most reliable protection of all.

IX. Concluding Observations

The consistent thread running through LGW Industries, Gargo Traders, Safecon Lifescience, Sri Padmavathi Marketing and K.K. Alloys is that a supplier’s default, whatever form it takes — non-payment of collected tax, retrospective cancellation of registration, or an allegation of fraud upstream in the chain — cannot, without more, be visited on a buyer who can demonstrate the ordinary indicia of a genuine transaction. The department retains ample power to act, but the burden of showing that the buyer’s own conduct, rather than merely its position in a compromised supply chain, justifies denial of credit increasingly falls on the department itself, and a buyer who has maintained a complete and contemporaneous documentary record may now invoke a substantial and growing body of authority in its defence.