Nine Years of GST: Simplifying Taxation, Strengthening India

UPSC Prelims + Mains Study Note | GS-III: Indian Economy | Updated: June 2026

1. At a Glance

• GST (Goods and Services Tax) is a unified, destination-based, multi-stage indirect tax that replaced a fragmented web of central and state levies (excise duty, service tax, VAT, CST, entry tax, octroi, etc.) on 1 July 2017 — completing India's biggest post-Independence tax reform. [1]
• Operates on the principle of "One Nation, One Tax", creating a common national market and eliminating the cascading ("tax on tax") effect. [1]
• UPSC relevance: tested across GS-III (taxation, fiscal federalism), GS-II (Centre-State relations), and Essay; repeated in Prelims for factual hooks (rates, slabs, council, enabling article).
• The 9th GST Day (1 July 2026) coincides with landmark Next-Generation reforms — the most structural overhaul since 2017. [1]

2. Why in the News

• 56th GST Council Meeting (3 September 2025, New Delhi): Approved a historic rate rationalization — compressed the four-tier slab structure (5%-12%-18%-28%) into a simpler two-slab system (5% and 18%) plus a 40% special rate for sin/luxury goods; changes effective 22 September 2025 for most goods and services. [3]
• Record Annual Collection in FY 2024-25: Gross GST collection hit ₹22.08 lakh crore — highest ever — with 9.4% YoY growth and average monthly collection of ₹1.84 lakh crore. [2]
• April 2024: Single-month collection record of ₹2.10 lakh crore — highest ever monthly figure at that time. [4]
• PIB Backgrounder dated 30 June 2026 released ahead of GST Day 2026, framing nine years of achievements and ongoing Next-Gen reforms. [1]

3. Background & Evolution

Pre-GST Context:

• India operated 17+ central and state indirect taxes with cascading effects, multiple registrations, and inter-state barriers (Central Sales Tax, Octroi).
• Kelkar Task Force (2003): First recommended a comprehensive GST for India.
• 2006: Finance Minister P. Chidambaram set 1 April 2010 as target date — missed due to political resistance.
• Constitution (101st Amendment) Act, 2016: The enabling legislation — inserted Article 246A (concurrent power to levy GST), Article 269A (IGST on inter-state trade), and Article 279A (GST Council); brought into force 16 September 2016.

Key Milestones (Chronological):

4. Core Static Facts

Constitutional & Legal Framework:

• Enabling Article: Article 246A (inserted by 101st Amendment) — concurrent legislative power on GST to Parliament and State Legislatures
• IGST: Article 269A — Parliament levies Integrated GST on inter-state supply; proceeds apportioned between Centre and States
• GST Council: Article 279A — constitutional body for recommendations on rates, exemptions, thresholds
• Central Acts: CGST Act 2017, IGST Act 2017, UTGST Act 2017, GST (Compensation to States) Act 2017

GST Council Composition:

• Chairperson: Union Finance Minister
• Members: Union Minister of State for Finance + Finance Ministers of all States/UTs with legislatures
• Voting: Centre holds 1/3 votes; States collectively hold 2/3 votes; decisions by 3/4 majority

Rate Structure (Post-56th Council, effective 22 Sep 2025):

(Previous 12% and 28% slabs abolished under Next-Gen reform)

Key Numbers:

• GST registered taxpayers: 66.5 lakh (2017) → 1.65 crore (May 2026) — ~2.5x growth [1]
• FY 2024-25 gross collection: ₹22.08 lakh crore (9.4% YoY) [2]
• FY 2025-26 gross collection: ~₹22.27 lakh crore [1]
• Highest ever monthly collection: ₹2.10 lakh crore (April 2024) [4]
• GSTN payments processed (cumulative to Jan 2026): ₹102.91 lakh crore [2]
• Five-year revenue growth: ₹13.76 lakh crore (2021-22) → ₹22.27 lakh crore (2025-26) [1]

Implementing Institutions:

• Ministry of Finance (Dept. of Revenue) — nodal ministry
• GSTN (GST Network): Non-profit, non-government company (Section 8) — technology backbone
• CBIC (Central Board of Indirect Taxes and Customs): Administrative enforcement

Key Digital Systems:

• GST Portal (gst.gov.in): Registration, filing, payment
• E-way Bill System: Mandatory for goods movement > ₹50,000 value
• E-invoicing (IRP): Invoice Registration Portal for real-time B2B invoice data capture
• GSTR-1, GSTR-3B, GSTR-9: Key return forms

5. Multi-Dimensional Analysis

Economic

• GST expanded the formal tax base — registered taxpayers grew from ~66.5 lakh to 1.65 crore, integrating the informal sector. [1]
• Annual collections grew from ~₹7.19 lakh crore (2017-18, partial year) to ₹22.27 lakh crore (2025-26), reflecting structural formalization and buoyancy. [1][2]
• Elimination of cascading tax reduced the embedded cost of goods, theoretically lowering prices; empirical effects remain contested in literature.
• Rate rationalization (removing 12% slab) simplifies compliance cost for MSMEs — a key lobbying priority of small trade. [1]
• Coal: GST Compensation Cess removed; rate raised 5% → 18% under 56th Council — significant for power sector input costs. [3]

Legal / Constitutional

• The Constitution (101st Amendment) Act, 2016 is India's most consequential fiscal federalism amendment — it curtailed exclusive State power over sales tax (Entry 54, State List) and Centre's exclusive power over excise (Entry 84, Union List).
• Article 279A(10): Every decision of the GST Council to be by a majority of not less than 3/4 of weighted votes — giving states collective veto power.
• GST Compensation Clause (2017-22): States guaranteed 14% annual revenue growth for 5 years; compensation cess extended but wound down after 2022 amid Centre-State tensions.
• Supreme Court (Union of India v. Mohit Minerals, 2022): Held that GST Council recommendations are not binding on Centre or States — clarified the advisory (not mandatory) nature of Council decisions.

Administrative / Federalism

• GST is administered concurrently by Centre (CBIC) and States (State GST departments) — dual control: taxpayers with turnover > ₹1.5 crore under Centre's jurisdiction (for CGST); below ₹1.5 crore under State jurisdiction (for SGST), with cross-empowerment.
• IGST mechanism for inter-state transactions ensures seamless Input Tax Credit (ITC) flow across state borders — the key innovation resolving the pre-GST CST problem.
• Centre-State revenue sharing (SGST/CGST): Revenue from intra-state transactions split equally (50:50) between Centre and State.
• State compensation disputes (2020-22) exposed Centre-State trust deficit; States demanded direct borrowing authority and cess extension. [5]

Technological / Scientific

• E-invoicing (mandatory from Oct 2020, threshold progressively lowered to ₹5 crore): Enables real-time capture of B2B invoice data at IRP — reduces manual reporting and GST fraud. [2]
• GSTN processed ₹102.91 lakh crore in cumulative payments by Jan 2026 — one of India's largest civilian IT systems. [2]
• AI/analytics deployment by GSTN and CBIC for fake ITC detection; BIFA (Business Intelligence and Fraud Analytics) tools operational.
• Drones: Unified 5% GST rate approved at 56th Council — removes differential taxation and supports PLI-linked drone manufacturing. [3]

Social / Equity

• Zero-rated essentials (food grains, vegetables, milk) protect the poor from the regressive nature of indirect taxes.
• Rate reduction under Next-Gen reforms specifically targeted MSMEs, artisans, farmers, exporters — labour-intensive sectors. [1]
• Composition Scheme (small taxpayers with turnover < ₹1.5 crore): Simplified quarterly returns and fixed-rate levy — reduces compliance burden for micro-enterprises.
• Sand lime bricks: Rate cut 12% → 5% at 56th Council — benefits affordable housing / small construction. [3]

Historical

• India's GST is modeled on Canada's dual GST (Federal + Provincial) — not the single EU-style VAT, given India's federal complexity.
• Predecessors: MODVAT (1986) → CENVAT (2004) (credit mechanisms for excise) → State VAT (2005-06) — sequential steps toward integrated taxation before GST.
• France (1954) introduced the world's first VAT; India adopted GST 63 years later as a more evolved dual model.

6. Recent Developments (Last 12–18 Months)

• Sep 3, 2025 — 56th GST Council Meeting (New Delhi): Approved most sweeping rate rationalization since 2017 — collapsed 4-slab structure (5-12-18-28%) to 2 slabs (5%-18%) + 40% sin rate. [3]
• Sep 22, 2025: Rate changes on goods and services (excluding cigarettes, zarda, unmanufactured tobacco, beedi) came into effect. [3]
• Coal sector: Compensation Cess removed; GST rate raised 5% → 18% — significant shift affecting power sector. [3]
• Drones: Uniform 5% GST mandated — supports emerging aerospace/defense manufacturing. [3]
• FY 2024-25 Annual Record: ₹22.08 lakh crore gross collection; 9.4% growth; average monthly ₹1.84 lakh crore. [2]
• April 2024: All-time monthly high of ₹2.10 lakh crore recorded. [4]
• May 2024: ₹1.73 lakh crore (10% YoY growth). [4]
• March 2024: ₹1.78 lakh crore — second highest monthly collection at the time (11.5% YoY). [5]
• FY 2025-26 (cumulative): ~₹22.27 lakh crore; April-May 2026 alone: ₹4.37 lakh crore. [1]
• Taxpayer base: Reached 1.65 crore by May 2026 — up from 66.5 lakh at inception. [1]
• PIB Backgrounder (30 June 2026): Government released comprehensive Nine Years of GST assessment ahead of GST Day 2026, framing Next-Gen reforms as a continuation of One Nation One Tax vision. [1]

7. Prelims Hooks (High-Density Factual Bullets)

1. GST was launched on 1 July 2017 at a special midnight Parliament session — the only other such midnight session was India's Independence on 15 August 1947. [1]
2. The enabling constitutional provision is Article 246A, inserted by the Constitution (101st Amendment) Act, 2016. [1]
3. GST Council is established under Article 279A; Union Finance Minister is its Chairperson. [1]
4. GST Council decisions require a 3/4 weighted majority — Centre holds 1/3 votes, all States together hold 2/3 votes. [1]
5. GSTN (GST Network) is structured as a Section 8 (non-profit) company — technology backbone of GST. [2]
6. Highest-ever monthly GST collection: ₹2.10 lakh crore in April 2024. [4]
7. Highest-ever annual GST collection: ₹22.08 lakh crore in FY 2024-25 (9.4% YoY growth). [2]
8. 56th GST Council (3 Sep 2025): Approved two-slab (5% & 18%) + 40% sin rate structure — effective 22 Sep 2025. [3]
9. Under the new rate structure, the 12% and 28% slabs are abolished; replaced by 5%, 18%, and 40%. [3]
10. 40% special rate applies to: pan masala, tobacco products, aerated drinks, high-end cars, yachts, private aircraft. [1]
11. Coal GST: Compensation Cess removed; GST rate hiked from 5% to 18% at 56th Council. [3]
12. Drones: Uniform 5% GST rate approved at 56th Council (previously differential). [3]
13. GST registered taxpayers grew from 66.5 lakh (2017) to 1.65 crore (May 2026) — ~2.48x increase. [1]
14. E-invoicing under GST: Invoice Registration Portal (IRP) — mandatory for B2B transactions; captures invoice data in real time to prevent fake ITC claims. [2]
15. Supreme Court in Mohit Minerals (2022): GST Council recommendations are not binding on Centre or States — advisory in nature. [3]

8. Mains Relevance

GS Paper Mapping:

Plausible Mains Question Stems:

1. "Nine years after its implementation, evaluate the achievements and remaining challenges of GST as a tool for cooperative federalism in India." (GS-III / GS-II, 15 marks)
2. "The Next-Generation GST reforms of 2025, particularly the shift to a two-slab structure, represent a balance between revenue adequacy and equity. Critically examine." (GS-III, 15 marks)
3. "The GST Council is a unique institution in India's cooperative federalism. Discuss its constitutional basis, decision-making mechanism, and the tensions revealed during the COVID-19 compensation cess controversy." (GS-II, 10 marks)

9. Related Topics to Study Next

10. Common Errors / Trap Areas

1. Wrong Amendment Number: GST is enabled by the 101st Amendment, not 122nd — the 122nd Amendment Bill was the draft introduced in 2014; it was enacted as the 101st Amendment Act 2016. Many aspirants confuse the Bill number with the Act number.

2. GSTN ownership confusion: GSTN is NOT a government department or PSU — it is a Section 8 (non-profit) private company (though government holds majority stake post-2018 restructuring). Do not confuse with a ministry or statutory body.

3. GST Council vote shares: Aspirants often flip Centre and States — Centre = 1/3 votes; States collectively = 2/3 votes. The 3/4 majority requirement means Centre alone cannot pass anything; States must be on board.

4. Rate structure confusion (pre vs. post 2025): The 28% slab and 12% slab are abolished under Next-Gen reforms (effective Sep 2025). Questions set in 2025-26 may test the new structure (5%, 18%, 40%), not the old four-tier (5%, 12%, 18%, 28%). Know both periods.

5. "Mohit Minerals" judgment mis-cited: Some aspirants incorrectly state the SC held GST Council decisions are binding — the opposite is true. The 2022 ruling clarified they are recommendatory, restoring concurrent legislative sovereignty of Parliament and State Legislatures.