How Indian States Manage Their Money: SOTR, GSDP, FRBM, Finance Commission & Fiscal Deficit

Every state government in India has to run schools, hospitals, police stations, roads, electricity, welfare schemes, and thousands of other things. All of this needs money. But — states cannot print currency, cannot collect income tax on individuals, cannot levy customs duty. Their revenue powers are limited by the Constitution.

So how do states run themselves? Where does the money come from? What happens when they spend more than they earn? Why do we hear headlines like "Punjab's debt crosses 50% of GSDP" or "Kerala breaches FRBM limit"? And who decides how much money the Centre must share with states?

This article walks through the entire architecture — layer by layer, in story form.

Here is what we will cover:

1. The Core Problem — why states cannot survive on their own revenues alone
2. GSDP — the size of a state's economy, and why every fiscal number is measured against it
3. SOTR (State's Own Tax Revenue) — what states can tax on their own
4. The Vertical Imbalance — why the Centre has more money than it needs, and states have less
5. Finance Commission (Article 280) — the constitutional body that balances the fiscal see-saw
6. Vertical and Horizontal Devolution — the two big questions the Commission answers
7. Revenue Deficit vs Fiscal Deficit — the two most confused concepts in Indian economics
8. FRBM Act, 2003 — the law that forces governments to live within limits
9. N.K. Singh FRBM Review Committee — the modernisation of India's fiscal rulebook
10. Debt-to-GSDP Ratio — the true health check for a state's finances
11. The Bigger Picture — how all these pieces fit into India's cooperative fiscal federalism

By the end, you will understand not just what each concept means, but why it was created, how it works in practice, and what debates surround it today.

Imagine you are the Chief Minister of a state. Say Maharashtra. Or Bihar. Or Odisha. Doesn't matter which. Your problem is the same.

Every morning your officers walk in with a list. School teachers' salaries need to be paid. Police uniforms have to be ordered. A new hospital needs equipment. Roads in three districts have washed away in floods. Farmers are demanding subsidies. Pension bills are rising because government employees are living longer (which is a good thing, but expensive). Metro projects need matching funds. And somewhere in a corner, the electricity board is bleeding losses again.

Now the finance minister of the state walks in with the other list — how much money you have. And the two lists never match. Ever.

This is the eternal condition of state governments in India. Their expenditure responsibilities are enormous. Their revenue powers are limited.

Why? Because our Constitution divided taxing powers between the Union and States through the Seventh Schedule — the Union List, the State List, and the Concurrent List. The big, elastic, high-growth taxes — income tax, corporation tax, customs duty, excise on major items — went to the Union. The states got taxes that are politically difficult to raise (like stamp duty, motor vehicle tax, electricity tax, state excise on alcohol) or economically limited.

After GST came in 2017, even more of the state's traditional tax base (VAT, entry tax, luxury tax, entertainment tax) got merged into a shared GST regime. States lost independent control over their biggest indirect tax.

So states have big responsibilities but small tools. This structural mismatch is called the vertical fiscal imbalance — and understanding it is the starting point for everything else.

The question is: Agar state ke paas paise nahi hain apna kaam chalane ke liye, toh system chalta kaise hai?

The answer lies in the elaborate architecture we are about to walk through.

Before we talk about state finances, we need one foundational concept — GSDP (Gross State Domestic Product).

Think of GDP as the total value of all goods and services produced in India in a year. GSDP is the same idea, but for a single state. It is the total economic output of a state in a given financial year.

Why is GSDP important? Because every fiscal number is measured relative to GSDP — not in absolute rupees. Saying "Kerala has ₹4 lakh crore of debt" means nothing on its own. Kerala's economy is much larger than, say, Manipur's. So the same absolute debt is a much smaller burden for a bigger economy.

To make numbers comparable, economists always express fiscal indicators as a percentage of GSDP — debt-to-GSDP, deficit-to-GSDP, tax-to-GSDP, and so on.

A useful analogy — GSDP is like a person's annual income. If someone earning ₹10 lakh a year has a ₹5 lakh loan, that is 50% of income. If someone earning ₹1 crore has the same ₹5 lakh loan, that is just 5%. The same absolute number tells very different stories depending on income size.

Similarly, GSDP is the state's "annual income," and every fiscal decision is judged in relation to it.

Now let us look at what money the state actually earns on its own.

SOTR — State's Own Tax Revenue — is the tax money a state collects from taxes it is constitutionally empowered to levy. This includes:

• State GST (SGST) — the state's share of GST collected within its borders
• State Excise — mainly on alcohol, which remains outside GST
• Stamp Duty and Registration Fees — on property transactions
• Motor Vehicle Tax — on registration and road use
• Tax on Sale of Petroleum Products — states levy their own VAT on petrol and diesel, which are outside GST
• Tax on Electricity — on consumption and sale
• Land Revenue, Professional Tax, and a few others

There is also State's Own Non-Tax Revenue (SONTR) — money from state PSUs, mining royalties, interest receipts, fees, and so on.

Together, SOTR and SONTR form the state's Own Revenue. This is the money the state genuinely earns.

But here is the harsh reality — for most states, SOTR covers only about 40-60% of their revenue expenditure. The rest has to come from somewhere else. And that "somewhere else" is the Centre.

This gap is why the entire federal fiscal architecture exists.

Now zoom out. The Constitution gives the Centre most of the big taxes. The Centre therefore collects far more revenue than it needs to fulfil its own constitutional responsibilities.

Meanwhile, states have more expenditure responsibilities than their own revenues can cover.

This mismatch — where one level of government has surplus revenue power and another has surplus responsibility — is called vertical fiscal imbalance. It is a built-in feature of the Indian Constitution, not a design flaw. The framers understood that a strong Centre with revenue power, combined with responsibility-heavy states, would need a rebalancing mechanism.

That rebalancing mechanism is the system of transfers from the Centre to the States, which happens through three main channels:

1. Tax Devolution — the states' share in central taxes, decided by the Finance Commission.
2. Grants-in-aid — under Article 275 (statutory) and Article 282 (discretionary), given for revenue gaps, disaster relief, sector-specific needs, or specific schemes.
3. Centrally Sponsored Schemes (CSS) — Union-designed schemes like MGNREGA, PMAY, Ayushman Bharat, where the Centre and states share costs in defined ratios.

The Finance Commission is the central institution in this ecosystem. Let us go there next.