The waning sheen


The Waning Sheen — GST Rationalisation, Import IGST & Rupee Depreciation


1. At a Glance


2. Why in the News


3. Background & Evolution

Year Milestone
2017 GST launched (1 July); four-slab structure: 5%, 12%, 18%, 28% + cess
FY 2021-22 Import IGST in Feb 2022 = ₹33,800 crore (baseline for 5-yr comparison) [S3]
FY 2024-25 Gross GST FY25 = ₹22.08 lakh crore; CAGR of 18% since launch; monthly avg rose to ₹2.04 lakh crore from ₹82,000 crore in FY18 [S4]
Aug 2025 Group of Ministers (GoM) backs Centre's proposal to scrap 12% and 28% slabs [S2]
3 Sep 2025 56th GST Council: two-tier structure (5% + 18%) approved; special 40% rate retained for select sin/demerit goods [S1][S2]
22 Sep 2025 New GST rates come into effect; consumer non-durables, appliances, mobiles, tourism services get cheaper [S1][S2]
Nov 2025 First full month under new rates: collections slip to ₹1.70 lakh crore; YoY growth crashes to 0.7% [S4]
Feb 2026 Gross GST ₹1.83 lakh crore (+8.1% YoY); Import IGST ₹47,800 crore (+17% YoY); 5-yr import IGST rise = ~41% [S3]
May 2026 Import GST grows 19.1% YoY to ₹59,654 crore; net customs GST up 19.7% to ₹49,403 crore [S5]

4. Core Static Facts

GST Architecture (post-Sep 2025) - Rates: Two main slabs — 5% (essentials, mass-market goods) and 18% (standard goods/services); 40% special rate on selected sin/demerit goods [S1] - Abolished slabs: 12% and 28% standard slabs scrapped [S2] - Administered by: GST Council (constitutional body under Article 279A, inserted by 101st Constitutional Amendment Act, 2016) - Implementing ministry: Ministry of Finance → Department of Revenue (Central Board of Indirect Taxes & Customs — CBIC) - Import IGST: levied under Integrated Goods and Services Tax (IGST) Act, 2017, Section 5; collected at the port of entry by Customs authorities on behalf of IGST pool

Import IGST Revenue Facts - Feb 2022: ₹33,800 crore | Feb 2025: ~₹40,800 crore | Feb 2026: ~₹47,800 crore [S3] - Five-year growth (Feb 2022 → Feb 2026): ~41% [S3] - May 2026: ₹59,654 crore (gross), growing ~19% YoY [S5]

India's Import Dependence (Feb 2026) - Crude oil: >25% of total merchandise imports; India imports ~4.85 mn barrels/day [S5][S3] - Semiconductors: ~5% of imports; India imports >90% of its semiconductor requirements [S3] - Copper + Aluminium: ~3–4% of imports [S3] - Crude + semiconductors + copper/aluminium = ~35% of Feb 2026 merchandise imports [S3] - Feb 2026 merchandise imports: $63.71 billion; exports: $36.61 billion; trade deficit [S5] - Apr–Feb FY26 cumulative trade deficit: $310.60 billion [S5]

Rupee Depreciation - Feb 2025 → Feb 2026: rupee fell ~4% vs USD [S3] - Apr 2025 → Feb 2026: rupee fell ~6.2% vs USD [S3] - Key imports are dollar-denominated; depreciation directly inflates import IGST in rupee terms even without volume increase [S3][S5]


5. Multi-Dimensional Analysis

Economic

Geopolitical / Strategic

Federalism / Legal-Constitutional

Administrative / Governance

Historical


6. Recent Developments (Last 12–18 Months)


7. Prelims Hooks

  1. GST rationalisation into two-tier structure (5% and 18%) came into effect on 22 September 2025, following the 56th GST Council meeting. [S1][S2]
  2. The 28% slab and 12% slab were scrapped; a special 40% rate was retained for select sin/demerit goods. [S1][S2]
  3. February 2026 gross GST collections: ~₹1.83 lakh crore, a 8.1% YoY increase. [S3]
  4. Import IGST in February 2026: ~₹47,800 crore — a 17%+ YoY spike. [S3]
  5. Five-year rise in February Import IGST (FY22–FY26): ~41%, from ₹33,800 crore to ₹47,800 crore. [S3]
  6. India imports more than 90% of its semiconductor requirements from abroad. [S3]
  7. Crude oil accounts for over a quarter (>25%) of India's total merchandise imports. [S3]
  8. Crude oil + semiconductors + copper/aluminium together account for ~35% of February 2026 merchandise imports. [S3]
  9. The rupee depreciated ~6.2% against the dollar between April 2025 and February 2026. [S3]
  10. Import IGST is levied under the IGST Act, 2017 (Section 5), collected by Customs/CBIC at port of entry. [Background corroborated S1]
  11. GST Council is constituted under Article 279A of the Constitution, inserted by the 101st Constitutional Amendment Act, 2016. [Constitutional]
  12. FY2024-25 gross GST = ₹22.08 lakh crore; CAGR of 18% since GST launch (FY18 monthly avg: ₹82,000 crore → FY25: ₹2.04 lakh crore). [S4]
  13. November 2025 GST growth was 0.7% YoY — lowest post-launch — coinciding with first full month under the new two-tier rate structure. [S4]
  14. India's cumulative merchandise trade deficit (Apr–Feb FY26) = $310.60 billion. [S5]
  15. May 2026 gross import GST = ₹59,654 crore (+19.1% YoY); net GST revenue overall grew only 3.3% that month. [S5]

8. Mains Relevance

GS Paper Mapping

Paper Syllabus Heading
GS-III Indian Economy — taxation (GST), fiscal federalism, trade & balance of payments, inflation
GS-II Federalism — Centre-State financial relations, Finance Commission, GST Council
GS-I Economic Geography — India's import structure, dependence on fossil fuels, mineral imports

Plausible Mains Question Stems

  1. "The September 2025 GST rationalisation promised price relief to consumers but may have inadvertently reinforced fiscal vulnerability through import IGST. Critically analyse." (GS-III, 15 marks)
  2. "Rising import IGST collections widen the disparity in GST revenue between States. Discuss the constitutional and fiscal federalism implications, and suggest corrective mechanisms." (GS-II, 15 marks)
  3. "India's structural dependence on imported crude oil and semiconductors creates a feedback loop between exchange-rate depreciation and consumer price inflation. Examine in the context of India's current account dynamics." (GS-III, 10 marks)

9. Related Topics to Study Next

Topic Connection
GST Council & Article 279A Constitutional basis of rate changes; voting mechanism; States' concerns
India's Current Account Deficit (CAD) Import dependence → trade deficit → CAD → rupee pressure → import IGST spiral
Exchange Rate Management (RBI) Rupee depreciation amplifies import IGST; RBI's forex intervention toolbox
India's Semiconductor Mission / Semicon India >90% import dependence in chips; government's ₹76,000 crore incentive scheme
Finance Commission (16th FC) Centre-State revenue sharing of IGST; compensation cess phase-out
Crude Oil Import Dependence & Strategic Petroleum Reserve Crude >25% of imports; Russia diversification; SPR policy
IGST Act, 2017 Statutory framework for cross-border supply taxation; credit mechanism
India's Merchandise Trade Data (DGCI&S / Commerce Ministry) Monthly trade deficit trends; commodity-wise import breakdown

10. Common Errors / Trap Areas

  1. Confusing Import IGST with Customs Duty: Import IGST (under IGST Act) is separate from Basic Customs Duty (BCD) and Additional Customs Duty; all three apply on imports but IGST is creditable against output GST liability, BCD generally is not.
  2. Assuming GST rationalisation = only rate cuts: The reform also introduced a 40% special rate on demerit/sin goods; the 28% slab was not entirely abolished — it was restructured. Aspirants often wrongly state "28% slab eliminated entirely."
  3. Attributing Import IGST growth solely to real import volume growth: The article's core argument is that rupee depreciation, not just higher import volumes, inflates rupee-denominated import IGST — a distinction examiners may test.
  4. Treating November 2025's 0.7% GST growth as a trend reversal: It was a one-time base/rate-cut effect; February 2026 rebounded to 8.1% — but the composition (high import IGST) must be disaggregated.
  5. Wrong ministry for GST administration: GST is administered by the Ministry of Finance → Department of Revenue → CBIC (for indirect taxes). Students sometimes cite DPIIT or Ministry of Commerce — incorrect. The GST Council is a constitutional body, not a ministry.

11. Sources


Sources: - GST Reforms 2025 — PIB - Two-rate GST structure approved — Business Standard - India cuts GST 2025 — Business Standard - Net GST revenue May 2026 — Business Standard