With petroleum and alcohol outside GST, Entry 54 of the State List has become the mainstay of State own-tax revenue. Discuss the implications for cooperative fiscal federalism.

The 101st Constitutional Amendment (2016) narrowed Entry 54, List II to six goods: petroleum crude, high speed diesel, petrol, natural gas, ATF and alcoholic liquor [2]. Yet sales tax still yields about 20%, and State excise about 14%, of States' own tax revenue (2025-26) [3]. This narrow but vital tax base has effects in both directions for cooperative federalism.

Implications that strengthen cooperative federalism

• Residual fiscal autonomy: GST pooled taxing power in the GST Council. Entry 54 leaves States one lever where they set rates on their own, which keeps them accountable to their legislatures.
• Legal certainty: A seven-judge Bench reaffirmed S. Kodar (1975). It held that a State cess on sales tax is an "enhancement of the rate", which ended litigation dating from 1994 [1].
• Counterweight to Union cesses: Union cesses and surcharges lie outside the divisible pool. So the 41% share kept by the 16th Finance Commission [6] works out to only about 32% of gross tax revenue [7]. Entry 54 lets States make up part of this gap.

Implications that strain cooperative federalism

• Disincentive to complete GST: Petroleum enters GST only on the GST Council's recommendation [2]. States are unwilling to give up their most flexible revenue, so the move stays stalled.
• No compensation template: Revenue from the old Entry 54 was left out of the GST compensation base year [8]. States therefore have no ready safety net if petroleum moves into GST.
• Cascading and consumer burden: Businesses cannot claim input credit for tax paid on fuel. The effective tax on petroleum in Delhi was about 62% (Nov 2022) [5], and this feeds into transport costs and inflation.
• Revenue concentration: SGST, sales tax and State excise together make up about 79% of States' own tax revenue [4]. This leaves budgets exposed to oil-price swings and to prohibition policies.
• Friction and blame-shifting: Fuel VAT and cesses differ across States. This drives fuel buying across State borders and Centre–State disputes over who is to blame for pump prices.

Entry 54 therefore both protects State autonomy and holds back tax harmonisation. It should move from a bargaining chip to a negotiated transition. That would need:

• a GST Council roadmap for bringing petroleum into GST in phases, with a time-bound revenue guarantee modelled on the 2016 compensation law [8];
• Union restraint on cesses that are not shared with States [6];
• publication of combined effective fuel tax rates by States.

Together, these steps would build the trust-based cooperative federalism that Article 279A and the GST Council were designed for.