Fiscal federalism: rationale and India's two imbalances
Fiscal Federalism: Finance Commission, Devolution and Centre-State Finances · section 1 of 9
In this note
Detail
1. What fiscal federalism means
- Fiscal federalism is the way a country divides three things between its levels of government:
- the power to tax (who collects which tax),
- the duty to spend (who pays for which service),
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the transfers (money that moves from one level to another to close gaps).
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India has three levels:
- the Union (the Centre),
- the states,
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local bodies (panchayats and municipalities).
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Constitutional anchors (Era line):
- Art. 270 covers sharing of central taxes with states.
- Art. 275 covers grants-in-aid to states that need help.
- Art. 280 sets up the Finance Commission every five years.
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Art. 293 covers borrowing by states.
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Scope of sharing widened in 2000: before 2000, the Centre shared only income tax and Union excise duty on certain goods with states. A constitutional amendment in 2000 allowed all central taxes to be shared [2].
2. Who should do what: the assignment logic
- Decentralisation theorem (Wallace Oates): a public service should be provided by the lowest level of government that covers its benefit area.
- Benefit area means the area whose people actually use and gain from the service.
- A street light helps one locality, so the municipality should run it. A national defence force helps the whole country, so the Centre should run it.
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Local governments know local needs and tastes better, so they waste less.
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Subsidiarity is the same idea: do not centralise what a smaller unit can do well.
What sits with the Centre
- Stabilisation means managing booms and slumps in the economy.
- Why a state cannot do it alone:
- A state spends more during a slump to create demand.
- Much of that money is spent on goods made in other states, so the demand "leaks out".
- The state carries the debt while other states get much of the benefit.
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So counter-cyclical policy (spending more in bad times and less in good times) belongs with the Centre.
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Redistribution means moving income from rich to poor. Class 12 NCERT calls this the "redistribution function" of the budget.
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Why a state cannot do it alone:
- A state taxes the rich heavily.
- The rich move to a state with lower taxes.
- The tax base leaves, and the poor gain nothing.
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Mobile and buoyant tax bases belong with the Centre.
- Buoyant tax: tax revenue grows fast as GDP grows. Examples are income tax, corporation tax and customs.
- Mobile tax base: the thing being taxed can shift easily across state lines, such as company profits or imports.
- Why centralise them: if states taxed these bases, they would cut rates to attract firms. This tax competition (a "race to the bottom") would reduce revenue for everyone.
What sits with states
- Services people use daily: health, school education, police, agriculture, water and local services.
- Most of these fall in the State List of the Seventh Schedule. They cost a lot, and the cost grows over time.
3. India's two imbalances
(a) Vertical fiscal imbalance (VFI)
- Definition: the gap between levels of government. The Centre has the stronger tax powers, while states carry the larger spending duties.
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PRS describes it as states incurring expenditures that are out of proportion to their own sources of revenue [2].
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Size: states account for about 60% of general government expenditure but raise a much smaller share of total revenue.
- General government means the Centre and all states taken together.
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The RBI tracks this as the expenditure decentralisation ratio: states' expenditure ÷ general government expenditure [7].
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Worked example (illustrative numbers):
- Say total government spending = ₹100 and total revenue = ₹80.
- States spend 60% of all spending, which is ₹60.
- States raise only 35% of all revenue, which is ₹28.
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The vertical gap = ₹60 − ₹28 = ₹32. This must come from the Centre as tax devolution (the states' share of central taxes) plus grants.
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How the gap is closed: by tax devolution and grants (§§3-6 of the parent note).
- 13th FC: states got 32% of the divisible pool.
- 14th FC: raised this to 42% for 2015-20 [3].
- 15th FC: set it at 41% for 2021-26 [4]. The 1 point cut reflects the new UTs of J&K and Ladakh.
- 16th FC (Chair: Dr Arvind Panagariya): report tabled on 1 February 2026 for 2026-27 to 2030-31. It kept the share at 41% [5].
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The divisible pool is the part of central tax revenue that is shared with states. It is gross tax revenue minus cesses, surcharges and collection costs.
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Pressure on state budgets:
- In 2023-24, states spent 53% of their revenue receipts on salaries, pensions and interest.
- They spent another 9% on subsidies [6].
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So little money is left for building assets.
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GST and untied transfers:
- After GST (2017), states' GST revenue is still below the pre-2017 level of the taxes that GST replaced [6].
- Untied transfers (money states can spend as they choose) from the Centre declined during the 15th FC period [6].
- Both trends make the vertical gap harder for states to manage.
(b) Horizontal fiscal imbalance (HFI)
- Definition: the gap among states. States differ in how much they can raise and how much they need to spend.
- Fiscal capacity is a government's ability to raise revenue from its own tax base.
- It is usually proxied by per capita GSDP (Gross State Domestic Product divided by population).
- It differs several-fold between high-income states (Goa, Sikkim, Telangana, Karnataka, Haryana) and low-income states (Bihar, UP, Jharkhand).
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PRS notes that states with lower per capita incomes have limited fiscal space to spend on growth-enhancing items [6]. Fiscal space means room in the budget after fixed costs are paid.
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Cost disabilities are natural or social conditions that make the same service costlier to deliver.
- Examples are hills, forests and a thin, spread-out population.
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The North-East and Himalayan states are the main cases. A school or clinic there costs more per child or patient.
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How FCs correct HFI: through the horizontal devolution formula, which divides the states' share among states.
| Criterion | 15th FC (2021-26) [4] | 16th FC (2026-31) [5] | What it corrects |
|---|---|---|---|
| Income distance | 45% | 42.5% | Low fiscal capacity (equity) |
| Population (2011) | 15% | 17.5% | Need |
| Area | 15% | 10% | Cost disability |
| Forest & ecology / Forest | 10% | 10% | Cost disability; reward for green cover |
| Demographic performance | 12.5% | 10% | Rewards population control |
| Tax & fiscal efforts | 2.5% | — (dropped) | Efficiency |
| Contribution to GDP | — | 10% (new) | Efficiency (rewards the states that produce more) |
- Income distance is the gap between a state's per capita GSDP and the highest per capita GSDP. The larger the gap, the larger the share.
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The 16th FC says the purpose is to "maintain equity among states" [5].
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Contribution to GDP formula (16th FC) [5]:
- State share = √(GSDP of state) ÷ Σ √(GSDP of all states).
- It uses average nominal GSDP for 2018-19 to 2023-24, leaving out 2020-21 (the COVID year).
- Worked example: State A has GSDP ₹400, State B ₹100 and State C ₹25.
- The square roots are 20, 10 and 5, which add up to 35.
- The shares are A = 20/35 ≈ 57%, B ≈ 29% and C ≈ 14%.
- By plain GSDP, A would have got 400/525 ≈ 76%. Taking the square root dampens the advantage of large states, so equity is not lost entirely.
4. Fiscal equalisation and its limits
- Fiscal equalisation means designing transfers so that every state can provide comparable services at comparable tax rates, even though fiscal capacity is unequal.
- Classic models are Canada (equalisation payments) and Australia (the Commonwealth Grants Commission).
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In India, the heavy weight on income distance is the main equalising tool [4][5].
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Gap-filling grants:
- The 15th FC gave ₹2.9 lakh crore in revenue deficit grants to 17 states for 2021-26 [4]. A revenue deficit is revenue spending minus revenue receipts.
- The 16th FC discontinued revenue deficit grants [5]. This is a clear move away from gap-filling.
Incentive problems
- Penalising efficiency:
- A state grows faster, so its per capita GSDP rises.
- Its income distance shrinks, so its share of devolution falls.
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Result: good performance is "taxed" by the formula.
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Moral hazard of gap-filling: moral hazard means taking more risk because someone else will pay.
- The Centre covers every deficit.
- States then have little reason to control spending or raise their own taxes.
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This is why deficit grants are now being withdrawn [5].
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Southern states' grievance:
- Karnataka, Kerala, Tamil Nadu and others contribute more to central taxes than they get back.
- They are also penalised on the population criterion because they controlled population growth early.
- FCs responded with demographic performance (12.5% → 10%) and the new contribution to GDP (10%) criteria [4][5].
Accounting link (Class 12, Government Budget and the Economy)
- Grants to state governments count as Union revenue expenditure, "even though some of the grants may be meant for creation of assets".
- Loans to states count as Union capital expenditure, because they create a financial claim.
- Worked example: the Centre gives a state a ₹1,000 crore grant to build a hospital.
- In the Union accounts, this is recorded as revenue expenditure.
- So it raises the Union's revenue deficit, even though an asset is created. (The effective revenue deficit concept removes such grants.)
- If the same ₹1,000 crore is given as a loan, it is capital expenditure.
The core trade-off
- Equity (equalisation) and efficiency (rewarding performance) pull in opposite directions throughout §§3-6.
- Trend:
- 15th FC: efficiency (tax effort) got 2.5%.
- 16th FC: efficiency (contribution to GDP) gets 10%, and deficit grants have ended [4][5].
- So the balance is shifting towards efficiency, but equity (income distance at 42.5%) is still the largest weight.
Prelims Hooks
- Decentralisation theorem: Wallace Oates. A service goes to the lowest level of government covering its benefit area. Subsidiarity is the same principle.
- Vertical imbalance = Centre vs states (revenue powers vs spending duties). Horizontal imbalance = state vs state (fiscal capacity and cost disabilities). Exam trap: do not swap the two.
- States account for about 60% of general government expenditure. RBI's expenditure decentralisation ratio = states' expenditure ÷ general government expenditure [7].
- States' share of the divisible pool: 13th FC 32% → 14th FC 42% [3] → 15th FC 41% [4] → 16th FC 41% (2026-31) [5].
- 16th FC: Chair Arvind Panagariya. Report tabled 1 Feb 2026. New criterion "Contribution to GDP" (10%) uses the square root of GSDP. It replaced tax & fiscal effort [5].
- Income distance weight: 45% (15th FC) → 42.5% (16th FC). It is the largest criterion in both [4][5].
- The 16th FC discontinued revenue deficit grants. The 15th FC gave ₹2.9 lakh crore to 17 states [4][5].
- Since the 2000 amendment, all central taxes are shareable. Earlier, only income tax and some Union excise duties were [2].
- Grants to states = Union revenue expenditure. Loans to states = Union capital expenditure (NCERT Class 12).
- Stabilisation and redistribution are central functions. Stabilisation is central because of spending leakage across states. Redistribution is central because the rich can move.
Mains Points
- VFI is built into India's design, not an accident. Buoyant, mobile taxes sit with the Centre to prevent tax competition. Daily services sit with states for better local knowledge (Oates/subsidiarity).
- The 41% devolution share closes only part of the gap [5].
- A falling share of untied transfers weakens states' autonomy [6].
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Cesses and surcharges sit outside the divisible pool, which widens the gap further.
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Equity vs efficiency:
- Income distance (42.5%) transfers money to Bihar, UP and Jharkhand. But it penalises fast-growing states, which feeds the southern states' grievance.
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The 16th FC's square-root contribution to GDP criterion (10%) and the end of revenue deficit grants reduce moral hazard while keeping equalisation dominant [5].
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Shrinking fiscal space limits equalisation:
- States spend 53% of revenue receipts on salaries, pensions and interest (2023-24) [6].
- GST collections are below pre-2017 levels [6].
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So transfers alone cannot ensure "comparable services at comparable tax rates". States also need own-revenue reform and better GST buoyancy (GS-III: fiscal policy; GS-II: federalism).
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International lesson: Canada and Australia's CGC equalise both fiscal capacity and cost disabilities using explicit formulas. India's area and forest criteria are partial proxies for cost disability. This supports a case for a more explicit needs-based measure.
Sources
- 1Class 12, Ch 5 "Government Budget and the Economy" (primary)
- 2Central Transfers to States: Role of the Finance Commission (PRS Blog)prsindia.org · tier 1
- 314th Finance Commission Report Tabled in Parliament; states' share raised to 42% from 32% (PIB)pib.gov.in · tier 1
- 4Report of the 15th Finance Commission for 2021-26 (PRS Report Summary)prsindia.org · tier 1
- 5Report of the 16th Finance Commission for 2026-31 (PRS Report Summary)prsindia.org · tier 1
- 6State of State Finances 2025-26 (PRS)prsindia.org · tier 1
- 7State Finances: A Study of Budgets (RBI Annual Publication)rbi.org.in · tier 1