Composite Show Cause Notices Covering Multiple Tax Periods: A Jurisdictional and Legal Infirmity

Introduction

The issuance of a show cause notice (SCN) is the foundational step in any tax adjudication process. It is not a mere procedural formality, but a jurisdiction-conferring instrument that delineates the scope of allegations, the period of demand, and the statutory basis for proposed action. Consequently, strict adherence to statutory discipline and settled principles of natural justice is indispensable. One recurring and increasingly scrutinised defect in tax administration is the practice of bundling multiple and distinct tax periods into a single composite show cause notice. Recent judicial pronouncements have unequivocally declared such a course of action to be ex facie bad in law.

Statutory Architecture and the Concept of “Tax Period”

Taxing statutes—whether under the Central Excise regime, Service Tax, or the GST framework—are structured around clearly demarcated tax periods. Each period gives rise to a separate and independent cause of action, governed by its own limitation, factual matrix, and compliance obligations. The statutory scheme does not contemplate a consolidated adjudication of multiple tax periods through a single notice unless expressly authorised. In the absence of such legislative sanction, administrative convenience cannot be elevated above statutory command.

A composite SCN, by collapsing distinct periods into one proceeding, obscures the statutory individuality of each tax period. This conflation results in uncertainty regarding limitation, quantification, mens rea (where applicable), and even the applicable rate of tax or exemption notifications prevailing during different periods.

Judicial Rejection of Composite Show Cause Notices

The Hon’ble Madras High Court, in M/s R.A. & Co. v. Additional Commissioner of Central Taxes (decided on 21 July 2025), has expressly deprecated the practice of issuing a single show cause notice covering several tax periods. The Court held that such a composite notice is impermissible in law, as it undermines the statutory scheme and deprives the assessee of a clear and effective opportunity to respond period-wise to the allegations raised. The judgment recognises that each tax period must be tested independently against the requirements of law, including limitation and evidentiary standards.

This legal position has been further fortified by the Hon’ble Allahabad High Court in M/s S.D. Freshners Ltd. v. Union of India (decided on 10 December 2025). After an exhaustive survey of a catena of judgments on the subject, the Court concluded that a composite show cause notice for multiple tax periods is neither contemplated by the taxing statute nor consistent with the fundamental principles governing taxation and adjudication. The Court underscored that jurisdiction to demand tax arises period-wise and that any attempt to aggregate such jurisdiction through a single notice is legally unsustainable.

Violation of Natural Justice and Procedural Fairness

Beyond statutory infirmity, composite SCNs also offend basic principles of natural justice. An assessee is entitled to know, with precision and clarity, the exact allegations pertaining to each period, the evidence relied upon, and the legal provisions invoked. When multiple periods—often spanning several years—are clubbed together, the notice becomes unwieldy and opaque, effectively diluting the right to a meaningful defence.

Such notices also risk mechanical adjudication, where findings for one period are impermissibly transplanted onto others, despite differences in facts or law. This approach strikes at the root of fair adjudication and renders the entire proceedings vulnerable to judicial invalidation.

Consequences of an Invalid Show Cause Notice

Since a valid show cause notice is the very foundation of jurisdiction, any adjudication order passed pursuant to an impermissible composite SCN is liable to be set aside as void ab initio. Courts have consistently held that jurisdictional defects are not curable by subsequent proceedings or by participation of the assessee. Administrative efficiency cannot be invoked to legitimise an action that the statute does not authorise.

Conclusion

The law is now well settled that bundling multiple and distinct tax periods into a single show cause notice is ex facie bad in law. The consistent judicial view, as crystallised by the Madras High Court and reaffirmed by the Allahabad High Court, leaves little room for doubt: each tax period constitutes a separate cause of action and must be proceeded against independently. Tax authorities would be well advised to align their practices with this settled legal position, failing which such proceedings are destined to collapse on jurisdictional grounds.