Received a GST show cause notice or a demand order? Here are the most common, legally recognised grounds businesses use to challenge GST demand and recovery proceedings — and the timelines you cannot afford to miss.
A GST Notice Is Not the End of Your Case
GST litigation has climbed steadily as scrutiny has intensified around ITC claims, return-level reconciliations, and classification disputes. A show cause notice (SCN) can feel alarming — the numbers are often large, the language is formal, and the clock starts ticking the moment it is served. But an SCN is the beginning of a proceeding, not a concluded finding. Businesses that respond systematically, on the right grounds and within the right timelines, routinely get demands reduced, remanded, or set aside entirely.
This note sets out the grounds that businesses and their advisors most commonly — and most successfully — rely on to challenge a GST demand, along with the recovery mechanics that follow if a demand is left unanswered.
You are not required to pay while proceedings are pending
Payment becomes compulsory only once a final demand order is passed and attains enforceability. During the notice and adjudication stage, you are not legally required to pay the disputed amount — though a partial payment under protest can, in some situations, reduce the risk of premature recovery action.
Understanding the Demand Framework: 73, 74 & 74A
Before you can challenge a demand, it helps to know which provision it has been raised under, because each carries a different burden of proof, timeline, and penalty exposure.
| Provision | Applies To | Nature of Case | Penalty Exposure |
|---|---|---|---|
| Section 73 | Periods up to FY 2023-24 | No fraud, wilful misstatement, or suppression alleged | Lower — reduced penalty on early payment |
| Section 74 | Periods up to FY 2023-24 | Fraud, wilful misstatement, or suppression alleged | Higher — up to 100% of tax |
| Section 74A | FY 2024-25 onwards | Unified provision — covers both fraud and non-fraud cases under one section | Staged — depends on whether fraud/suppression is established |
Section 74A, inserted by the Finance (No. 2) Act, 2024 and effective from 1 November 2024, harmonises the limitation period for issuing notices and orders regardless of whether the case involves fraud — the SCN must generally be issued within 42 months from the due date of the annual return (or from the date of an erroneous refund) for the relevant financial year. What it does not harmonise is penalty: whether fraud, wilful misstatement, or suppression is actually established remains decisive for penalty exposure and prosecution risk, which is exactly why the classification of your case matters so much at the reply stage.
Check the financial year, not the notice date
Section 74A applies only to FY 2024-25 onwards. A notice issued in 2026 relating to FY 2022-23 or FY 2023-24 will still be governed by the older Sections 73 or 74 — always verify the financial year the demand relates to, not merely the date the notice was issued.
Ground 1: Defects in the Show Cause Notice Itself
This is, by volume, the most frequently and successfully argued ground in GST litigation today — and courts have been unusually consistent about it through 2025 and 2026.
Vague or non-speaking notices
The Supreme Court has held that an SCN issued under Section 74 containing mere tax figures — with no allegations, factual basis, or material particulars supporting a charge of fraud or suppression — is unsustainable. An SCN must be speaking, reasoned, and fact-based, especially where it invokes the serious charge of fraud.
Non-supply of relied-upon documents
Where the department’s case rests on documents or statements gathered during investigation, courts have set aside adjudication orders where those relied-upon documents (RUDs) were not supplied to the taxpayer along with the SCN — the taxpayer must know, and be able to respond to, the material actually being used against them.
Demand travelling beyond the notice
An adjudicating authority cannot confirm a demand on grounds that were never raised in the SCN. Adjudication must be confined strictly to the scope of what the notice alleged — a demand order that goes further is vulnerable on that basis alone.
Cryptic cancellation/assessment orders
Retrospective registration cancellations and assessment orders issued on generic grounds, without disclosing the basis for the action or supplying the underlying material, have been struck down as non-speaking and in violation of natural justice.
Timing matters for this ground
Courts have also shown they will not indulge a “vagueness” challenge raised for the first time after the taxpayer has already responded to the SCN on merits and lost. If you intend to argue that a notice is vague or lacks particulars, that ground needs to be raised clearly and early — ideally in your very first reply, and if pursued through a writ petition, before you engage substantively with the merits.
Ground 2: Improper Service of Notice or Order
Valid service is not a mere formality — it is, as one recent High Court put it, the very foundation of GST adjudication. A tax demand cannot survive unless the taxpayer has actually received a legally valid and meaningful opportunity to defend itself.
Common fact patterns that succeed on this ground: the SCN or order was uploaded only to the GST portal without any parallel communication where the taxpayer had genuinely stopped monitoring it (e.g., after a change in authorised signatory); the notice was sent to a superseded address or an inactive email; or recovery was initiated — such as debiting the Electronic Cash Ledger — on the very same day the order was passed, without allowing any window for the taxpayer to even become aware of it, let alone respond or appeal.
Ground 3: Violation of Natural Justice
Beyond notice defects, a cluster of related natural-justice grounds shows up repeatedly in successful challenges:
- No personal hearing granted, or a hearing granted without adequate notice of the date/time.
- Refusal to allow cross-examination of witnesses whose statements are relied upon in the adjudication — courts have held this violates the fundamental requirement of a fair hearing, particularly where the statement forms the backbone of the department’s case.
- Confidential information shared improperly between proceedings or with unauthorised parties, in violation of the statutory confidentiality obligation on tax authorities.
- Orders passed without considering the taxpayer’s reply on record, or without dealing with the specific submissions made.
Writ jurisdiction has limits here
Not every natural-justice grievance will get you a hearing in a writ petition. Where the dispute turns on contested facts — for instance, whether a hearing notice was actually served, or whether cross-examination was rightly refused on the specific facts — High Courts have declined to adjudicate those disputed factual questions in writ jurisdiction and have instead directed the taxpayer to the statutory appeal route under Section 107. Save the writ route for clear-cut, undisputed procedural failures.
Ground 4: Limitation — The SCN or Order Is Time-Barred
Every demand provision carries a hard outer limit, and a notice or order issued beyond it is void regardless of how strong the underlying allegation might otherwise be.
| Provision | SCN Limitation | Order Limitation |
|---|---|---|
| Section 73 | Well before the order deadline (typically ~2 years 9 months from annual return due date) | 3 years from due date of annual return |
| Section 74 | Well before the order deadline | 5 years from due date of annual return |
| Section 74A | 42 months from due date of annual return, or from date of erroneous refund | Prescribed timeline from SCN, subject to limited extensions |
Always compute limitation against the correct financial year, and check whether any COVID-period or other notified extension actually applies to your specific tax period — the department has, on occasion, relied on blanket extension notifications that do not, on a closer read, cover the year in question.
Ground 5: Jurisdictional and Authority Errors
Wrong proper officer
An SCN or order issued by an officer without valid jurisdiction over the taxpayer — whether on a territorial basis or because a case ought to have been assigned to a different wing (e.g., DGGI versus the jurisdictional Central/State officer) — is open to challenge.
Parallel proceedings on the same subject matter
Where both Central and State authorities initiate proceedings on the same subject matter for the same period, this is generally impermissible and can be challenged — the GST framework intends a single, cross-empowered proceeding.
Revision beyond statutory limits
A revisional authority acting under Section 108 cannot revise an order that has already been appealed, where the departmental appeal window has not yet expired, where more than three years have passed, or where the order was itself passed in exercise of revisionary power — each is an independent ground to challenge a revision order.
Ground 6: Wrong Invocation of Section 74/74A Over 73
Because Section 74 (and the fraud-limb of Section 74A) carries far higher penalty exposure and a longer limitation window, the department sometimes invokes it even where the underlying facts point, at most, to a computational error, a bona fide interpretational dispute, or a return-mismatch — not fraud, wilful misstatement, or suppression.
If you receive a notice under Section 74 or the fraud-limb of Section 74A for what genuinely looks like a classification or reconciliation issue, it is worth specifically challenging the invocation of the fraud provision itself, rather than only contesting the quantum. Recent GSTAT guidance has confirmed that where Section 74 proceedings are found unsustainable, the Appellate Authority cannot simply relabel the case as one under Section 73 on its own — it must remand the matter to the proper officer for a fresh determination, which itself resets important procedural protections in the taxpayer’s favour.
Ground 7: Merits — ITC, Classification & Reconciliation Disputes
Alongside the procedural grounds above, a large share of demands are ultimately contested and reduced on the merits. The most common recurring fact patterns:
GSTR-1 vs GSTR-3B vs GSTR-2A/2B mismatches
A large proportion of SCNs originate from automated mismatch flags between outward supply reporting, tax paid, and ITC auto-populated from supplier filings. Many of these are reconcilable with supporting documentation — supplier invoices, e-way bills, payment proof — and a well-documented reconciliation statement is often the single most effective response.
ITC denied for supplier-side defaults
Denial of ITC purely because a supplier failed to deposit tax or file returns, without any finding that the recipient failed to exercise due diligence or was complicit, has been a heavily litigated area — genuine purchasers who can evidence the underlying transaction have strong grounds to resist wholesale denial.
Classification and rate disputes
With the GST 2.0 rate rationalisation still settling in, classification-driven demands (which slab a good or service falls under) are an active area — these are genuinely contestable on interpretation and are rarely fraud cases, making an incorrect Section 74/74A invocation a live issue here too.
Time-of-supply and place-of-supply disputes
Disputes over which period a supply belongs to, or which state should have received the tax, often result in demands that are more a timing/allocation issue than genuine tax loss to the exchequer — a distinction worth foregrounding in your reply.
Recovery Proceedings: What Happens If You Don’t Act
Understanding the recovery timeline is what turns “we’ll deal with it later” into a costly mistake.
Under Section 78, the amount confirmed in an order must be paid within three months of service, failing which recovery proceedings may begin. Section 79 then gives the department a wide toolkit — deduction from money otherwise payable to you, recovery from third parties who owe you money (garnishee action), detention and sale of goods, attachment and sale of movable or immovable property, and recovery as arrears of land revenue. In parallel, Section 83 allows provisional attachment of property (including bank accounts) even during the pendency of certain proceedings, and Rule 86A allows blocking of electronic credit ledger balances where ITC is suspected to be wrongly availed — both powerful, and both independently challengeable where invoked without the statutory pre-conditions being met.
Filing an appeal with pre-deposit stays the balance automatically
This is the single most important practical fact in this entire note: once you file a Section 107 appeal with the 10% pre-deposit, recovery of the remaining disputed amount is deemed stayed under Section 107(7). File the second appeal to GSTAT with the further 10% pre-deposit, and the balance stays under Section 112(9) as well. You do not need to pay the full disputed demand to protect yourself from recovery action — only the pre-deposit.
The Appeal Route: Section 107 → GSTAT → High Court
First Appeal — Section 107
File before the Appellate Authority (Additional/Joint Commissioner Appeals or Commissioner Appeals) within 3 months of the order (plus 1 month condonable). Pre-deposit: 100% of the admitted tax, plus 10% of the disputed tax, capped at ₹20 crore each for CGST and SGST. This is where most demand challenges — procedural and merit-based alike — are first tested.
Second Appeal — GSTAT, Section 112
With the GST Appellate Tribunal now operational, appeals against a Section 107 (or Section 108 revision) order lie to GSTAT. Additional pre-deposit: 10% of the remaining disputed tax (capped again at ₹20 crore). File on FORM GST APL-05, electronically, through the GSTAT portal. For orders communicated before 1 April 2026, note the important 30 June 2026 deadline for backlog appeals — after which the right of second appeal is permanently extinguished for those matters.
Beyond GSTAT — High Court & Supreme Court
Further appeals on substantial questions of law lie to the High Court under Section 117, and thereafter to the Supreme Court under Section 118 — following the classic pattern of a fact-finding tribunal being the last forum for factual disputes.
Mistakes Businesses Commonly Make
Paying the full demand out of fear
Many taxpayers pay the entire confirmed amount rather than the much smaller pre-deposit, even where they have genuinely strong grounds to dispute the demand — needlessly tying up working capital.
Ignoring a notice served only on the portal
Assuming a notice is invalid simply because it was only uploaded to the GST portal is risky — portal service is generally a valid mode. The safer course is always to check the portal regularly and respond, then separately argue any genuine service defect if one exists.
Missing the 3-month/4-month appeal window
Once a demand order attains finality because no appeal was filed in time, the full amount — including accumulated interest — becomes immediately recoverable, and most of the grounds discussed in this note become far harder to raise.
Responding only on merits, never on procedure
A reply that only addresses the numbers, without also flagging genuine defects in the SCN itself (vagueness, missing documents, wrong classification under 73/74/74A), leaves a strong independent ground unused.
A Practical Action Plan
Diagnose the notice within days, not weeks
Identify the section invoked (73/74/74A), the financial year, the alleged grounds, and whether relied-upon documents have actually been supplied. This diagnosis shapes everything that follows.
Build both the procedural and the merits case in parallel
Don’t choose between challenging the SCN’s validity and contesting the numbers — plead both, in the alternative, in your reply.
Request a personal hearing, and document it
Always ask for a personal hearing in writing, and keep a record of the request — this closes off a common natural-justice loophole the department might otherwise leave open.
Calendar every deadline the moment the notice arrives
Reply deadline, order deadline, Section 107 appeal window, and — if it comes to that — the GSTAT window, including the 30 June 2026 backlog cutoff where relevant.
Protect cash flow with the pre-deposit route
Where an appeal is genuinely warranted, use the 10%/20% pre-deposit mechanism rather than settling the full demand, and confirm the automatic stay is reflected on record.
Common Questions
Can I ignore a GST notice if I believe it is wrong?
No. Even a notice you believe is fundamentally flawed should be responded to within the deadline — you can raise the flaw itself as your primary defence, but silence converts a contestable notice into an uncontested, and much harder to reverse, order.
Does filing an appeal stop the department from recovering the money?
Filing the appeal with the correct pre-deposit (10% at Section 107, a further 10% at GSTAT) triggers an automatic, statutory stay on recovery of the balance disputed amount. An appeal filed without the pre-deposit does not get this protection.
What if my case genuinely does involve a computational error, not fraud?
This is worth flagging explicitly and early — both because it affects your penalty exposure and because it can affect whether Section 73 or Section 74/74A was the correct provision to invoke in the first place.
Is a writ petition to the High Court a shortcut around the appeal process?
Rarely, and courts have increasingly said so. Writ jurisdiction is generally reserved for clear jurisdictional errors or undisputed procedural failures (like total non-service) — disputed factual questions, including many natural-justice claims, are usually sent back to the statutory appeal route under Section 107.