Tax Structure in India — How the State Finances Itself

Tax is the price of civilisation — the primary way the government raises revenue to fund public goods, redistribute income & steer the economy. This topic maps India's tax architecture: the constitutional division of taxing powers, the direct-vs-indirect distinction, the tax-to-GDP ratio & the shifting tax mix, income & corporation-tax reforms (new regime, DTC 2025), customs & the residual excise/VAT, and the landmark GST (101st Amendment, GST Council, slabs, collections) — plus tax buoyancy, the Laffer curve & the machinery of tax administration (CBDT, CBIC, faceless assessment, GAAR).

UPSC Prelims · Mains GS-III Ramesh Singh Ch. 18 ~30 min read GST · Art 279A Direct/Indirect Tax

Conceptual Clarity
1. Constitutional Framework of Taxation
2. Direct vs Indirect Taxes
3. Tax-to-GDP Ratio & the Tax Mix
4. Direct Taxes & Reforms
5. Indirect Taxes (Customs, Excise, VAT)
6. GST — 101st Amendment & GST Council
7. Tax Buoyancy, Elasticity & Laffer Curve
8. Tax Administration & Reforms
9. Current Affairs Anchor (2024-26)
10. Prelims PYQs (2014–2026)
11. Mains PYQs (2014–2025)
12. Revision Box

Conceptual Clarity — Three Lenses

Three canons of a good tax system (from Adam Smith): equity (ability to pay), certainty & convenience (predictable, easy to comply), and economy/efficiency (low collection cost, minimal distortion). Every reform debate maps onto these.
Incidence vs impact — impact is who legally pays; incidence is who finally bears the burden. In a direct tax the two coincide; in an indirect tax the burden is shifted forward to the consumer — which is why indirect taxes are regressive.
Equity vs efficiency trade-off — progressive direct taxes advance equity but can blunt incentives; broad-based indirect taxes (GST) are efficient & hard to evade but regressive. A sound structure balances the two, aided by a rising direct-tax share.

Article 265: “No tax shall be levied or collected except by authority of law”
Tax-to-GDP (Centre gross) ~11.7% BE 2025-26 · Combined (Centre+State) ~17-18% · OECD avg ~33%
Tax Buoyancy = % change in tax revenue ÷ % change in nominal GDP

1. Constitutional Framework of Taxation

India's tax architecture rests on the constitutional distribution of taxation powers and the rule of law over taxation.

Article 265 — “No tax without law”: taxes can be levied only by authority of a statute, not executive order.
Seventh Schedule division — Union List (entries 82-92C: income tax, customs, corporation tax, etc.); State List (entries 45-63: land revenue, state excise on alcohol, stamp duty, etc.); the Concurrent List has no taxation entry — taxation powers are mutually exclusive between Centre & States (except GST, now concurrent under Art 246A).
Article 246A (added by the 101st Amendment) — gives Centre & States concurrent power to levy GST, the sole exception to the exclusive-division rule.
Article 279A — constitutes the GST Council.
Article 280 — Finance Commission recommends tax-revenue sharing between Centre & States (detailed in Public Finance, Ch. 19).

Prelims trap: The Concurrent List has no taxation entry — before GST, Centre & State taxing powers were watertight. GST is the first & only concurrent tax, made possible by the new Article 246A.

2. Direct vs Indirect Taxes

Feature	Direct Tax	Indirect Tax
Incidence & impact	On the same person (not shifted)	On different persons (shifted to consumer)
Examples	Income tax, Corporation tax, STT, CTT, Gift tax (abolished)	GST, Customs, Union excise on petroleum & tobacco
Equity	Progressive (rate rises with income)	Regressive (same rate for rich & poor)
Evasion	Easier (self-reporting)	Harder (built into price)
Administered by	CBDT (Dept. of Revenue)	CBIC (Dept. of Revenue)

Mains anchor: A rising direct-tax share makes the overall system more progressive & equitable; India's shift toward direct taxes (below) is therefore a structural improvement, but a heavy indirect-tax reliance still burdens the poor disproportionately.

3. Tax-to-GDP Ratio & the Tax Mix

Centre's gross tax-to-GDP: ~11.7% (BE 2025-26). check for latest update or data
Combined (Centre + State) tax-to-GDP: ~17-18%; the OECD average is ~33% — India's ratio is low, reflecting a narrow base & large informal economy.
Direct-to-Indirect ratio: moved from ~38:62 (FY10) to ~56:44 (FY24) — a structural shift toward a more progressive mix.
Personal vs Corporation tax: personal income tax overtook corporation tax in FY24 for the first time — reflecting a widening base via PAN-Aadhaar seeding, the Annual Information Statement (AIS) & TDS expansion.

Prelims trap: A low tax-to-GDP ratio constrains fiscal space; raising it is a policy goal — but through base-widening (bringing the informal sector in), not necessarily higher rates, which the Laffer logic (Section 7) cautions against.

4. Direct Taxes & Reforms

4.1 Main Direct Taxes

Personal Income Tax — on individuals/HUFs, progressive slabs; the largest & fastest-growing direct tax.
Corporation Tax — on company profits; concessional rates introduced in 2019.
Securities Transaction Tax (STT) & Commodities Transaction Tax (CTT) — on market trades.
Capital Gains Tax — short-term vs long-term, on asset sales.
Abolished: Wealth Tax (2015), Gift Tax, Estate Duty, Fringe Benefit Tax — frequently tested "which tax no longer exists" items.

4.2 Recent Direct-Tax Reforms

New Personal Income Tax Regime (2020): simpler slabs without exemptions; from FY24 made the default regime with rebate up to ₹7 lakh; Budget 2025-26 raised the rebate threshold further. check for latest update or data
Concessional Corporate Tax (2019): 22% for domestic companies (without exemptions); 15% for new manufacturing units (Section 115BAB), plus surcharge & cess.
Faceless Assessment & Appeals (2020): eliminated the physical taxpayer-officer interface via dynamic jurisdiction — cutting harassment & discretion.
Vivad-se-Vishwas: one-time settlement of pending tax disputes; relaunched in Budget 2024.
Direct Tax Code (DTC) / new Income-Tax Act 2025: a consolidated law to replace the 1961 Act — ~50% shorter, simpler residency & capital-gains framework. check for latest update or data

Prelims trap: Wealth Tax was abolished in 2015 (replaced by a surcharge on the super-rich); Gift Tax, Estate Duty & Fringe Benefit Tax are also gone — a recurring "existing vs abolished tax" test item.

5. Indirect Taxes (Customs, Excise, VAT)

GST — the dominant indirect tax (Section 6).
Customs duties — Basic Customs Duty (BCD), Social Welfare Surcharge (10% of BCD), IGST on imports, plus Anti-Dumping & Safeguard duties; used both for revenue & to protect domestic industry ("Make in India").
Union Excise & State VAT survive only on the five petroleum products (crude, petrol, diesel, ATF, natural gas) plus tobacco & alcohol — these remain outside GST.

Prelims trap: Petroleum products (petrol, diesel, crude, ATF, natural gas) & alcohol for human consumption are constitutionally outside GST — still taxed via Union excise + State VAT. Alcohol is kept out by Art 366(12A); petroleum can be brought in later by GST Council decision.

6. GST — 101st Amendment & GST Council

The Goods and Services Tax, via the 101st Constitutional Amendment Act, 2016, subsumed 17 central + state indirect taxes (excise, service tax, VAT, entry tax, octroi, luxury & entertainment tax, etc.) into a single nation-wide destination-based consumption tax. Live from 1 July 2017.

6.1 Constitutional Architecture

Article	Provision
Art 246A	Concurrent power for Centre & States to levy GST
Art 269A	IGST — levied by Centre on inter-state supply & imports; apportioned between Centre & consuming State
Art 279A	Constitution of the GST Council
Art 366(12A)	Defines GST — excludes alcoholic liquor for human consumption

6.2 The GST Tax Structure (Dual GST)

CGST (Centre) + SGST/UTGST (State/UT) on intra-state supply.
IGST (Centre) on inter-state supply & imports, later apportioned.
Input Tax Credit (ITC) — seamless credit across the value chain removes the earlier "tax-on-tax" cascading.

6.3 GST Council (Art 279A)

Chair: Union Finance Minister.
Members: Union MoS (Finance) + Finance Minister of every State/UT with a legislature.
Voting: Centre 1/3 weight; all States together 2/3; decisions need a 3/4 majority — giving the Centre an effective veto and the States a collective veto.
Mohit Minerals ruling (SC, May 2022): GST Council recommendations are not binding — only persuasive; both Centre & States retain sovereign legislative power under Art 246A.

6.4 GST Slabs

0%, 5%, 12%, 18%, 28% — the five standard slabs.
Special rates: 0.25% (rough diamonds), 3% (gold & silver), 28% + Compensation Cess on sin/luxury goods.
Rate Rationalisation — a Group of Ministers is reviewing slab merger to simplify the structure. check for latest update or data

6.5 Collections & Compensation

Monthly GST collections regularly exceed ₹1.7-1.8 lakh crore; record ₹2.10 lakh crore in April 2024. check for latest update or data
GST Compensation (14% YoY growth guarantee to States) ended 30 June 2022; Compensation Cess continues to repay Covid-era back-to-back loans.
Inverted Duty Structure — inputs taxed higher than outputs (textiles, fertiliser) causes refund stress; under correction.

Mains anchor: GST is celebrated as "one nation, one tax, one market" — it removed cascading, unified the domestic market & boosted formalisation. Pending reforms: fewer slabs, bringing petroleum & real estate in, easing compliance for small firms & strengthening cooperative fiscal federalism in the Council.

7. Tax Buoyancy, Elasticity & Laffer Curve

Tax Buoyancy = % change in tax revenue ÷ % change in nominal GDP

India's overall tax buoyancy has averaged ~1.4 post-pandemic — a 1% rise in nominal GDP yields ~1.4% more tax revenue. Direct-tax buoyancy is even higher (~2.1), thanks to PAN-Aadhaar linkage, AIS, expanded TDS & faceless assessment. check for latest update or data

Tax Buoyancy — responsiveness of tax revenue to GDP growth including discretionary rate/base changes.
Tax Elasticity — responsiveness excluding discretionary changes (pure automatic response); a subtle but tested distinction.

Laffer Curve: beyond an optimal rate, raising taxes lowers revenue (higher evasion, lower incentive). India's 2019 corporate tax cut (30% → 22%) is cited domestically — corporation-tax revenue grew thereafter, supporting the "downward-slope" hypothesis.

8. Tax Administration & Reforms

CBDT (Central Board of Direct Taxes) administers direct taxes; CBIC (Central Board of Indirect Taxes & Customs) administers GST & customs — both under the Department of Revenue, Ministry of Finance.
GAAR (General Anti-Avoidance Rule) — in force since 2017; empowers authorities to deny tax benefits from arrangements whose main purpose is tax avoidance (an "impermissible avoidance arrangement").
PAN, TAN, AIS & TIS — identifiers & information statements enabling data-driven, pre-filled, non-intrusive assessment.
TDS/TCS expansion — collection at source widens the base & improves compliance.
Tax Expenditure ("Revenue Foregone") — the revenue given up through exemptions/deductions; a transparency statement tabled with the Budget.
Global Minimum Tax (OECD Pillar Two, 15%) — India engaged in the two-pillar global tax deal on taxing large MNEs & the digital economy. check for latest update or data

Prelims trap: CBDT = direct taxes; CBIC = indirect taxes/customs — don't swap them. Both are statutory boards under the Central Boards of Revenue Act, within the Department of Revenue.

9. Current Affairs Anchor (2024-26)

New Income-Tax Act / DTC 2025 rollout & simplification check for latest update or data
GST rate-rationalisation (slab merger) GoM decision check for latest update or data
Latest monthly GST collection figures check for latest update or data
Personal income-tax slab/rebate changes in the latest Budget check for latest update or data
Tax-to-GDP ratio & direct-to-indirect mix trend check for latest update or data
OECD Global Minimum Tax (Pillar Two) implementation status check for latest update or data

Note: Tax rates, slabs & collection figures change with every Budget & GST Council meeting — cross-check the latest official notifications before the exam.

10. Prelims PYQs (2014–2026)

UPSC CSE 2023

With reference to the Indian economy, "Gross Domestic Product (GDP)"/tax terms — consider the difference between "tax buoyancy" and "tax elasticity".
Answer: Tax buoyancy measures revenue response to GDP including discretionary policy changes; tax elasticity measures the response excluding discretionary changes (pure automatic response).

UPSC CSE 2022

With reference to the Indian economy, consider the statements about "Gross Tax Revenue" & the Direct-to-Indirect mix.
Answer: Direct taxes (income + corporation) are progressive; indirect taxes (GST, customs) are regressive; India's direct-tax share has risen toward ~56% of gross tax revenue.

UPSC CSE 2020

Which of the following are/is regarded as capital account transactions / with reference to the GST Council, consider its composition.
Answer: The GST Council (Art 279A) is chaired by the Union Finance Minister; decisions need a 3/4 majority with Centre holding 1/3 and States collectively 2/3 of the votes.

UPSC CSE 2019

With reference to India's decision to levy an equalization tax / GST, consider the constitutional provisions.
Answer: GST was enabled by the 101st Amendment; Art 246A gives concurrent taxing power to Centre & States — the only concurrent tax in the Constitution.

UPSC CSE 2018

Consider the statements about "Goods and Services Tax (GST)" — what it subsumed & its nature.
Answer: GST is a destination-based consumption tax that subsumed most central & state indirect taxes; petroleum products & alcohol for human consumption remain outside its ambit.

UPSC CSE 2017

What is/are the purpose/purposes of "Directive Principles"/ (economic terms) — the incidence of a direct tax.
Answer: In a direct tax, the impact & incidence fall on the same person (cannot be shifted); in an indirect tax, the incidence is shifted forward to the consumer.

UPSC CSE 2016

Which one of the following is not a direct tax? / with reference to abolished taxes.
Answer: Wealth Tax was abolished in 2015; Gift Tax, Estate Duty & Fringe Benefit Tax no longer exist — Income & Corporation tax remain the main direct taxes.

UPSC CSE 2015

The sales tax you pay while purchasing a toothpaste is a tax collected by which government? (pre-GST context)
Answer: Post-GST, the intra-state supply attracts CGST (Centre) + SGST (State) simultaneously; the older sales tax/VAT was a State-level tax.

11. Mains PYQs (2014–2025)

GS-III 2019

Enumerate the indirect taxes which have been subsumed in the GST in India. Also comment on the revenue implications of the GST introduced from July 2017.
Answer: List central (excise, service tax, CVD, SAD) & state (VAT, entry, octroi, luxury, entertainment) taxes subsumed; comment on formalisation, cascading removal, compensation-cess mechanics & the initial revenue-neutrality challenge.

GS-III 2018

Comment on the important changes introduced in respect of the Long-term Capital Gains Tax (LTCG) & Dividend Distribution Tax (DDT) in the Union Budget for 2018-19.
Answer: Discuss reintroduction of LTCG on equities above a threshold & grandfathering; analyse the revenue-vs-market-sentiment trade-off & equity/efficiency rationale.

GS-III 2017

"GST is a game changer for cooperative federalism." Discuss with reference to the GST Council.
Answer: Argue that the Council institutionalises shared fiscal sovereignty (pooled decision-making, weighted voting); balance against the non-binding-recommendation ruling (Mohit Minerals) & state-autonomy concerns.

GS-III 2016

Discuss the challenges in widening India's tax base & raising the tax-to-GDP ratio. Suggest measures.
Answer: Discuss informality, exemptions, evasion & low compliance; measures — digitisation (PAN-Aadhaar, AIS, faceless), GST formalisation, base-widening over rate hikes (Laffer logic) & simplification (DTC).

GS-III 2014

What are the salient features of a good tax system? Evaluate India's tax structure against these principles.
Answer: Apply Adam Smith's canons (equity, certainty, convenience, economy); evaluate India's rising direct-tax share (equity gain), indirect-tax reliance (regressivity), low tax-GDP ratio & the simplification agenda.

12. Revision Box — 15-Point Crisp Recap

Art 265 = no tax without law; taxing powers split in Seventh Schedule; Concurrent List has no tax entry.
Art 246A = concurrent GST power (only concurrent tax); Art 279A = GST Council; Art 269A = IGST.
Direct tax: impact = incidence, progressive, CBDT; Indirect tax: shifted, regressive, CBIC.
Centre gross tax-to-GDP ~11.7%; combined ~17-18%; OECD ~33% (India low).
Direct:Indirect shifted from ~38:62 (FY10) to ~56:44 (FY24) — more progressive.
Personal income tax overtook corporation tax (FY24) — base widening.
New PIT regime (2020) default from FY24; corporate concessional 22% / 15% new manufacturing (2019).
Abolished: Wealth Tax (2015), Gift Tax, Estate Duty, Fringe Benefit Tax.
Customs: BCD + SWS (10% of BCD) + IGST; excise/VAT survive only on 5 petro-products + tobacco/alcohol.
GST: 101st Amendment (2016), live 1 July 2017; destination-based, dual (CGST+SGST / IGST); ITC removes cascading.
GST Council: FM-chaired; 3/4 majority; Centre 1/3, States 2/3; recommendations non-binding (Mohit Minerals 2022).
GST slabs: 0/5/12/18/28%; petroleum & alcohol outside GST.
Tax buoyancy (~1.4) includes discretionary changes; elasticity excludes them.
Laffer curve — 2019 corporate cut (30→22%) grew revenue (downward slope).
CBDT (direct) vs CBIC (indirect); GAAR in force since 2017; DTC/new Income-Tax Act 2025 simplifies the 1961 law.

Article	Provision
246A	Concurrent GST power
269A	IGST
279A	GST Council
366(12A)	GST definition
265	No tax without law

	Direct	Indirect
Burden	Not shifted	Shifted
Equity	Progressive	Regressive
Board	CBDT	CBIC

Tax Structure in India — How the State Finances Itself

On this page

Conceptual Clarity — Three Lenses

1. Constitutional Framework of Taxation

2. Direct vs Indirect Taxes

3. Tax-to-GDP Ratio & the Tax Mix

4. Direct Taxes & Reforms

4.1 Main Direct Taxes

4.2 Recent Direct-Tax Reforms

5. Indirect Taxes (Customs, Excise, VAT)

6. GST — 101st Amendment & GST Council

6.1 Constitutional Architecture

6.2 The GST Tax Structure (Dual GST)

6.3 GST Council (Art 279A)

6.4 GST Slabs

6.5 Collections & Compensation

7. Tax Buoyancy, Elasticity & Laffer Curve

8. Tax Administration & Reforms

9. Current Affairs Anchor (2024-26)

10. Prelims PYQs (2014–2026)

11. Mains PYQs (2014–2025)

12. Revision Box — 15-Point Crisp Recap