Sales-Tax Surcharges Remain Sales Tax: No Larger-Bench Reconsideration After the Precedential Conflict Disappears

1. Introduction

This judgment addresses a longstanding constitutional challenge to State sales-tax surcharges calculated as a percentage of the sales tax payable, rather than directly as a percentage of turnover. The assessees characterised these charges as an unauthorised “tax on tax”, or alternatively as taxes on dealers’ income. Odisha and Punjab maintained that they were merely enhancements of sales tax within the States’ legislative competence under the former Entry 54 of List II of the Seventh Schedule.

The controversy reached a seven-judge Bench because earlier decisions were thought to conflict. However, the Court ultimately concluded that no unresolved conflict remained: S. Kodar v. State of Kerala continued to govern sales-tax surcharges, while subsequent mineral-taxation jurisprudence had removed the premise underlying the supposed contrary authority.

The judgment’s significance is therefore twofold. Substantively, it reaffirms that the method used to calculate a surcharge does not, by itself, change its constitutional character. Institutionally, it explains why a larger-Bench reference need not proceed when subsequent binding law has eliminated the uncertainty that occasioned it.

2. Background: Three Connected but Distinct Controversies

2.1 Odisha: Surcharge under Section 5-A

Section 5-A of the Orissa Sales Tax Act, 1947, introduced with effect from 1 July 1990, required dealers whose annual gross turnover exceeded ₹10 lakh to pay a surcharge equal to 10% of their sales-tax liability. Section 5-A(3), reproduced in the separate opinion, prohibited collection of that surcharge from purchasers.

The Orissa High Court upheld the levy by applying S. Kodar v. State of Kerala and Hoechst Pharmaceuticals Ltd. & Ors. v. State of Bihar & Ors.. Arjun Flour Mills and other assessees appealed.

2.2 Punjab: General surcharge and exempt industrial units

Section 5(1-C) of the Punjab General Sales Tax Act, 1948 imposed a surcharge calculated at 10% of the tax payable. Section 30-AA additionally required industrial units enjoying sales-tax exemptions under Section 30-A to pay the surcharge notwithstanding those exemptions.

This second provision introduced a separate problem: if an exemption eliminates the underlying tax payable, what amount supports the surcharge, and does the charge remain an increment to sales tax? The Punjab and Haryana High Court upheld both provisions.

2.3 Punjab: Social-security cess and revenue routing

The Punjab Social Security Act, 2000 imposed a cess measured by sales-tax liability and earmarked its proceeds for social-security measures. The High Court struck down the enactment, holding, among other things, that the proceeds could not be credited directly to the Punjab Social Security Fund without first entering the State’s Consolidated Fund under Article 266.

Punjab challenged those decisions. These proceedings shared the legislative-competence issue with the surcharge cases, but also raised an independent constitutional question about receiving and appropriating public revenue.

3. Procedural History and the Question Before the Court

1. 13 August 1998: A two-judge Bench identified an apparent divergence between Hoechst Pharmaceuticals Ltd. & Ors. v. State of Bihar & Ors. and the seven-judge decision in India Cement Ltd. & Ors. v. State of Tamil Nadu & Ors..
2. 6 October 1999: A five-judge Bench recognised that reconsideration would also involve the Constitution Bench ruling in S. Kodar v. State of Kerala, necessitating reference to seven judges.
3. During the reference’s pendency: Mineral-taxation law developed through a five-judge decision and, decisively, a nine-judge decision. The relevant sales-tax enactments were also replaced through the VAT and GST transitions.
4. 2026: The seven-judge Bench considered, at the threshold, whether the reference still required adjudication.

The immediate question was thus narrower than the original tax challenge: did a genuine legal uncertainty remain that required resolution by seven judges?

4. Summary of the Judgment

4.1 The six-judge opinion delivered by Surya Kant, CJI

The principal opinion held that the reference had become infructuous. Its central conclusions were:

• S. Kodar v. State of Kerala directly establishes that an additional tax calculated by reference to sales-tax liability remains a tax on sales.
• India Cement Ltd. & Ors. v. State of Tamil Nadu & Ors. concerned mineral royalty and different legislative entries. It did not establish a general constitutional prohibition against calculating one levy by reference to another.
• The nine-judge decision in Mineral Area Development Authority & Anr. v. Steel Authority of India & Anr. displaced the proposition that royalty is a tax, removing the foundation of the supposed conflict.
• The replacement of the relevant tax regimes further reduced the need for larger-Bench consideration, without extinguishing disputes about historical liabilities.

4.2 The separate opinion of K. V. Viswanathan, J.

Justice Viswanathan reached the same practical destination through a more express affirmation of the earlier precedent. He held that S. Kodar v. State of Kerala was correctly decided, remained good law, and required no reconsideration.

His opinion particularly emphasised that there was no conflict between that decision and Hoechst Pharmaceuticals Ltd. & Ors. v. State of Bihar & Ors.. The mineral-royalty litigation involved a different constitutional setting and could not undermine their reasoning.

4.3 Operative outcome

The individual appeals were not finally allowed or dismissed on their assessment merits. They were directed to appropriate regular Benches, with the surcharge-competence question governed by S. Kodar v. State of Kerala.

The Court expressly preserved the questions concerning exempt Punjab industrial units, Article 266 and the Social Security Fund, and other case-specific matters, including assessment periods and consequential relief. Justice Viswanathan specifically directed segregation of the Punjab social-security proceedings.

5. Precedents Cited and Their Influence

5.1 The controlling authority: S. Kodar v. State of Kerala

This five-judge decision, reported in the supplied judgment as (1974) 4 SCC 422 and [1975] 1 SCR 121, upheld the Tamil Nadu Additional Sales Tax Act, 1970. That legislation increased tax by 5% of the sales tax payable by dealers whose turnover exceeded ₹10 lakh and prohibited recovery of the additional amount from purchasers.

Its factual and statutory similarity made it decisive. The Court had already rejected the precise argument advanced in the present proceedings:

“the fact that quantum of the additional tax is determined with reference to the sales tax imposed would not alter its character.”

The earlier decision established three relevant propositions:

1. Legislative competence: An addition calculated on sales tax can remain a tax on the aggregate sales effected by the dealer.
2. Pass-through: A prohibition on recovering tax from purchasers does not transform sales tax into income tax.
3. Equality: Turnover-based differentiation between dealers can rationally reflect differences in economic capacity and therefore satisfy Article 14.

Both opinions treated this authority as independently sufficient. Its binding force did not depend on any concession made in later litigation.

5.2 Reaffirmation: Hoechst Pharmaceuticals Ltd. & Ors. v. State of Bihar & Ors.

This three-judge decision upheld a Bihar surcharge imposed on dealers above a turnover threshold, together with a prohibition on collecting it from buyers. The principal additional controversy concerned drug-price controls under the Essential Commodities Act, 1955.

The assessees here argued that the earlier judgment’s recorded concession—that the provisions were relatable to Entry 54 of List II—weakened its precedential value. The Court rejected that objection for two reasons. First, the controlling proposition had already been contested and decided in S. Kodar v. State of Kerala. Second, the later decision itself examined the surcharge’s character and rejected its attempted classification as income tax.

The decision also explained that Parliament’s regulation of essential commodities under Entry 33 of List III did not displace the State’s distinct sales-tax field. Regulatory control and taxation were not interchangeable sources of legislative authority.

5.3 The supposed contrary authority: India Cement Ltd. & Ors. v. State of Tamil Nadu & Ors.

This seven-judge case concerned a cess on mineral royalty under Tamil Nadu panchayat legislation. The State sought support from entries concerning land revenue, land taxation and mineral rights. The decision proceeded on the proposition that royalty was a tax and on an understanding that the central mining legislation occupied the relevant field.

The present Court distinguished that reasoning from the sales-tax issue. The mineral cess was not invalidated simply because it was calculated by reference to another payment. The dispute concerned the State’s competence over the underlying subject and the relationship between the relevant constitutional entries.

Consequently, the earlier judgment could not be converted into a general rule that every “tax calculated on tax” is unconstitutional. The Court considered the perceived conflict more apparent than real even before subsequent developments.

5.4 Incremental levies: M/s Guruswamy & Co. etc. v. State of Mysore & Ors.

This authority supplied an important interpretive bridge: a cess imposed as an increment to an existing tax is judged in the same manner as that tax. Significantly, the mineral-royalty judgment itself approved this principle.

That approval supported harmony rather than conflict between the earlier decisions. A genuine surcharge on a valid sales tax ordinarily shares the principal levy’s constitutional character; its computational dependence does not create a new taxable subject.

5.5 The intermediate correction: State of West Bengal v. Kesoram Industries Ltd.

The five-judge majority interpreted the statement that “royalty is a tax” as an inadvertent error, reasoning that the intended statement concerned a cess on royalty. It treated royalty as consideration for mineral extraction rather than a tax.

Its corrective role was important but not institutionally conclusive: a five-judge Bench was interpreting a seven-judge decision. The resulting uncertainty ultimately required resolution by nine judges.

5.6 The decisive development: Mineral Area Development Authority & Anr. v. Steel Authority of India & Anr.

The nine-judge majority held that royalty is contractual consideration paid for enjoyment of mineral rights, not a sovereign tax. It also held that the MMDR Act, as considered there, did not impose the limitations necessary to displace State taxation under Entry 50 of List II.

This decision influenced the present judgment in two distinct ways:

• Removal of the supposed conflict: The proposition that royalty itself was a tax could no longer support the assessees’ “tax on tax” argument.
• Confirmation of the measurement principle: Legislative choice of a tax measure is permissible where it bears a reasonable nexus to the levy’s nature. The decision expressly noticed S. Kodar v. State of Kerala.

Justice Viswanathan also discussed its rejection of narrow reasoning about using mineral yield or royalty to measure land taxation. That discussion reinforced the distinction between what is taxed and how liability is quantified.

5.7 Taxing fields and tax measurement

• M.P.V. Sundararamier & Co. v. State of Andhra Pradesh: Establishes that taxation requires a specific taxing entry; a general regulatory entry does not automatically carry taxing power. This directed attention to the former Entry 54 of List II.
• Union of India v. Bombay Tyre International Ltd.: Supports distinguishing the nature of a levy from the measure used to assess it.
• Federation of Hotel & Restaurant Association of India v. Union of India: Reinforces legislative latitude in selecting a measure without confusing that measure with the tax’s essential character.
• Jindal Stainless Steel v. State of Haryana: Appears in the separate opinion’s discussion of the established separation between general legislative subjects and taxing fields.

5.8 Legal incidence, surcharge terminology and supporting authorities

J.K. Jute Mills Co. Ltd. v. State of U.P. and Tata Iron and Steel Co. Ltd. v. State of Bihar underpin the proposition that a seller’s right to recover tax from the purchaser is not an essential characteristic of sales tax. The principal opinion also reproduces an unidentified citation as __JUD_LINK_11__, AIR 1958 SC 756; the supplied text does not provide a case title for that authority.

Sarojini Tea Co. (P) Ltd. Vs. Collector of Dibrugarh and Indian Aluminum Co. and others v. State of Kerala and others appear in the Punjab High Court reasoning reproduced by Justice Viswanathan. They explain “surcharge” as an additional imposition enhancing an existing tax and sharing its nature. Their role is supportive, rather than independently determinative of the reference.

The quoted reasoning from S. Kodar v. State of Kerala also approves the approach in Ernakulam Radio Company v. State Of Kerala, Kiliker v. Sales Tax Officer and A. S. Ramachandra Rao v. State of Andhra Pradesh, treating the additional levy as an enhancement of sales tax.

5.9 Authorities within the mineral-taxation and repugnancy discussions

H.R.S. Murthy v. Collector of Chittoor explains the historical background to the mineral-cess litigation: the High Court had relied on it to sustain the cess as land taxation. Its treatment was subsequently questioned because the relevant MMDR Act provisions had not been adequately considered.

Orissa Cement Ltd. v. State Of Orissa is discussed through the nine-judge ruling’s rejection of its restrictive approach to royalty as a measure of land tax. The references to Goodricke, Federation of Mining Associations of Rajasthan, Mahalaxmi Fabric Mills, Saurashtra Cement, Mahanadi Coalfields and P. Kannadasan occur within the reproduced conclusions of that ruling. They map the mineral-taxation precedents clarified or overruled to the stated extent; this judgment does not independently reconsider each of them.

The references identified in the quoted passage as Ch. Tika Ramji case and Deep Chand case support the explanation that Article 254 repugnancy concerns competing laws in the Concurrent List, not merely legislation operating in distinct regulatory and taxing fields.

5.10 Judicial discipline: Central Board of Dawoodi Bohra Community & Anr. v. State of Maharashtra & Anr.

This decision supplies the institutional foundation: a smaller Bench cannot overrule a larger Bench and must seek an appropriate reference when genuine doubt arises. Conversely, the present seven-judge Bench was bound by the intervening nine-judge declaration of law.

Once that binding decision removed the supposed inconsistency, the reference no longer served its original purpose.

6. Legal Reasoning

6.1 The taxable subject is different from the computational measure

The central error in the assessees’ argument was to treat the immediate arithmetic base as necessarily identifying the constitutional subject of taxation. The subject remained the sale or purchase of goods. Existing sales-tax liability was simply the yardstick for calculating the additional amount.

The Court’s arithmetic illustrates the point. Assuming a uniform sales-tax rate of 10%, a surcharge equal to 10% of that tax adds another 1% of taxable turnover. The effective combined rate is 11%, not 20%. The indirect calculation changes neither the transaction taxed nor the basic source of legislative competence.

This reasoning does not authorise every levy described as a surcharge. The law must still be enacted by a competent legislature, and its structure and measure must maintain the required connection with its taxable subject.

6.2 Inability to pass on tax does not turn it into income tax

Legal liability to pay sales tax ordinarily rests on the dealer. Whether legislation permits the dealer to recover that expense from a purchaser concerns allocation of the economic burden, not necessarily the levy’s constitutional identity.

The surcharge also operated independently of profit. A dealer suffering a loss could remain liable because taxable sales occurred. Its relationship was to turnover and sales-tax liability, not the existence or amount of net income.

Equally, affirming this characterisation does not eliminate every possible fundamental-rights objection. The earlier precedent recognised the relevance of a properly established confiscatory burden; it rejected the proposition that non-recoverability alone establishes invalidity.

6.3 The relevant legislative entries must not be confused

The repeated reference to “Entry 54” can obscure a crucial distinction:

The constitutional relationships governing mining could not simply be transplanted into the sales-tax field. Article 265 required authority of a competent law, but did not require direct turnover-based arithmetic in every sales-tax provision.

The reference to Parliament’s surcharge power under Article 271 was illustrative, not the source of State competence. The States’ authority arose from their own applicable taxing entry.

6.4 A reference must retain a genuine purpose

A larger-Bench reference is a step within existing litigation, not an independent proceeding requiring an answer regardless of later developments. Its continued justification depends on whether a live uncertainty remains that requires that Bench strength.

The Court linked this principle to judicial discipline, institutional resources and litigants’ interests. Keeping appeals suspended for resolution of an already-settled issue compounds delay without improving the law.

Importantly, the Court rejected an automatic rule. A subsequent judgment or amendment does not invariably terminate a reference. The referred question may remain important to pending disputes, or the intervening development may create fresh uncertainty. The inquiry is contextual.

6.5 VAT and GST were supporting, not extinguishing, developments

The relevant State enactments had been replaced through VAT legislation, and the Constitution (One Hundred and First Amendment) Act, 2016 fundamentally restructured indirect taxation. Article 246A introduced the GST legislative framework, while Entry 54 of List II was narrowed to specified petroleum products and alcoholic liquor for human consumption.

These changes reduced the prospective significance of the impugned statutory schemes. They did not erase historical assessments or make the parties’ financial interests disappear. Nor did the Court decide the validity of surcharges under GST legislation.

For goods remaining within the substituted Entry 54, the judgment states that the established reasoning in S. Kodar v. State of Kerala would govern the relevant question.

6.6 Pending challenges and the 2026 mining amendment

The Court recorded the Union’s curative petition against the nine-judge mineral-taxation decision and the insertion of Section 9-D into the MMDR Act in 2026. It held that neither development affected the sales-tax principle under consideration.

This conclusion should not be mistaken for a ruling on the validity or full scope of Section 9-D, or on the merits of the curative petition. The point was narrower: those mining-law developments did not undermine the independent authority of the sales-tax precedent.

7. Questions Expressly Left Open

7.1 Surcharges on exempt industrial units

The Court did not decide whether Section 30-AA validly imposed a surcharge on units otherwise exempt from sales tax. That requires examination of the exemption’s terms, the statutory calculation mechanism and whether the charge remains an increment to sales tax or functions independently.

This reservation marks an important boundary. The ordinary arithmetic supporting a surcharge on payable tax does not, without further statutory analysis, resolve a case in which the underlying payable amount may be nil.

7.2 Direct credit to the Social Security Fund

Article 266 raises a separate question from legislative competence. Even if the State may impose a levy, its proceeds must be received and appropriated consistently with the Constitution.

The Court neither endorsed nor reversed the High Court’s conclusion concerning direct credit to the Punjab Social Security Fund. The lawfulness of that revenue-routing arrangement remained for the appropriate Bench.

7.3 Assessments, statutory limits and relief

Individual assessment disputes, levy periods and consequential relief were preserved. The reproduced provisions also contain protections concerning the aggregate tax burden on goods declared to be of special importance under the Central Sales Tax Act, 1956.

Accordingly, rejection of the general competence objection does not establish that every assessment was correctly quantified or that every collection complied with applicable statutory limits. No general refund or recovery direction was issued.

8. Impact and Critical Assessment

8.1 Greater certainty in legacy tax disputes

The judgment substantially closes the general argument that a sales-tax surcharge is unconstitutional merely because it is expressed as a percentage of tax. Future legacy disputes must focus on genuinely distinguishing statutory features, assessment errors or other preserved grounds.

8.2 A disciplined approach to precedent

The decision cautions against extracting broad propositions from judgments dealing with different legislative fields. Constitutional tax cases require attention to the relevant entry, taxable subject, statutory structure and actual basis of decision—not isolated references to “tax on tax”.

8.3 Better management of constitutional references

The principal opinion provides a useful approach to old references overtaken by legal developments. Their continued necessity should be reviewed against current binding law, rather than assumed from the historical referral order.

8.4 The limits of the judgment matter as much as its affirmation

The strongest substantive reasoning is the direct application of S. Kodar v. State of Kerala and the subject–measure distinction. The VAT/GST transition is supplementary: repeal or constitutional restructuring alone cannot make surviving historical liabilities inconsequential.

The Court’s express reservations preserve that distinction. A settled general competence question coexists with unresolved exemption, public-finance and assessment questions. The judgment is therefore an authoritative clarification, not blanket validation of every connected levy or demand.

9. Complex Concepts Simplified

Legislative competence

Whether the Constitution authorises a particular legislature to enact the law in question.

Subject of a tax

What is being taxed—for example, a sale of goods.

Measure of a tax

The formula used to calculate the amount payable. It need not independently identify the tax’s constitutional character.

Surcharge

An additional amount ordinarily enhancing an existing tax. Its label is not conclusive; its statutory operation matters.

Legal incidence and economic burden

Legal incidence identifies who must pay the government. Economic burden identifies who ultimately bears the cost. They need not fall on the same person.

Royalty

In the mining context discussed here, consideration paid for the right to extract or enjoy minerals, rather than a tax merely because the government receives it.

Infructuous reference

A reference that no longer requires a larger-Bench answer because its underlying purpose has disappeared. The connected appeals may nevertheless remain alive.

Consolidated Fund of the State

The constitutional fund into which State revenues covered by Article 266 must flow, with withdrawals governed by constitutional and legal requirements.

10. Conclusion

The judgment reaffirms that a genuine sales-tax surcharge does not cease to be sales tax merely because it is calculated on the tax payable or cannot be passed on to purchasers. The controlling authority remains S. Kodar v. State of Kerala.

Its broader contribution concerns constitutional adjudication: a larger-Bench reference need not continue after binding developments remove its foundational uncertainty. At the same time, the Court carefully preserved unresolved exemption, public-finance and assessment disputes for ordinary adjudication. Settled principle, rather than continued procedural suspension, must now guide those cases.