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Graduate Level intermediate Taxation GST Income Tax Indian Economy Tax Reforms

Indian Taxation and GST — Direct/Indirect Tax, GST Structure, Income Tax, Reforms

Complete guide to Indian taxation for PSC exams: direct vs indirect taxes, GST (CGST/SGST/IGST), income tax slabs, and history of tax reforms.

Published: 20 Apr 2026

Taxation questions appear in most PSC exams (2-4 questions). Focus on GST structure, the difference between direct and indirect taxes, constitutional provisions, and key tax reform milestones.

Direct vs Indirect Taxes

FeatureDirect TaxIndirect Tax
DefinitionPaid directly to government by the person on whom it is leviedPaid to government by one person but burden shifted to another
Incidence and impactOn the same personOn different persons
ExamplesIncome Tax, Corporate Tax, Wealth Tax (abolished), Capital Gains TaxGST, Customs Duty, (erstwhile: Excise Duty, Service Tax, VAT)
Progressive/RegressiveGenerally progressive (higher income = higher rate)Generally regressive (same rate regardless of income)
Administered byCBDT (Central Board of Direct Taxes)CBIC (Central Board of Indirect Taxes and Customs)
EvasionRelatively easierHarder (collected at point of sale)

Constitutional Provisions on Taxation

ArticleProvision
Article 265No tax shall be levied or collected except by authority of law
Article 246Distribution of legislative powers (Union List, State List, Concurrent List)
Article 268Duties levied by Union but collected and appropriated by States
Article 269Taxes levied and collected by Union but assigned to States
Article 270Taxes levied and distributed between Union and States
Article 279AGST Council (inserted by 101st Amendment)
7th ScheduleLists specifying which government can levy which tax

Article 265 is the most asked: “No tax shall be levied or collected except by authority of law.” This means every tax MUST have a legal backing — no arbitrary taxation.

Goods and Services Tax (GST)

Basic Facts

FeatureDetail
Launched1 July 2017
Constitutional Amendment101st Amendment Act, 2016
ReplacedCentral Excise, Service Tax, VAT, CST, Entertainment Tax, Luxury Tax, Octroi, and several other indirect taxes
Motto”One Nation, One Tax”
TypeDestination-based consumption tax
First country with GSTFrance (1954)
GST CouncilArticle 279A; chaired by Union Finance Minister
GST Network (GSTN)IT backbone; manages portal (www.gst.gov.in)

Structure of GST

TypeFull FormLevied OnCollected By
CGSTCentral GSTIntra-state supplyCentral Government
SGSTState GSTIntra-state supplyState Government
IGSTIntegrated GSTInter-state supply + importsCentral Government (then shared)
UTGSTUnion Territory GSTIntra-UT supply (UTs without legislature)Central Government

How GST Works — Example

Intra-state sale (within Kerala):

  • Item price: Rs 1,000; GST rate: 18%
  • CGST = 9% = Rs 90 (goes to Centre)
  • SGST = 9% = Rs 90 (goes to Kerala)
  • Total price: Rs 1,180

Inter-state sale (Kerala to Tamil Nadu):

  • Item price: Rs 1,000; GST rate: 18%
  • IGST = 18% = Rs 180 (collected by Centre, shared with consuming state)
  • Total price: Rs 1,180

GST Tax Slabs

RateItems (Examples)
0% (Exempt)Fresh fruits, vegetables, milk, eggs, bread, salt, books, newspapers, educational services, healthcare
5%Sugar, tea, coffee, edible oils, packaged food, economy air travel, transport services
12%Butter, ghee, fruit juice, mobile phones, processed food, business class air travel
18%Most goods and services fall here — soap, toothpaste, capital goods, IT services, financial services, restaurant services (AC)
28%Luxury items — cars, cement, pan masala, aerated drinks, white goods; + Compensation Cess on some items

GST Council

FeatureDetail
Constitutional basisArticle 279A
ChairpersonUnion Finance Minister
MembersUnion Minister of State for Finance + Finance Ministers of all States/UTs
VotingCentre has 1/3 weightage; States have 2/3 weightage collectively
Quorum1/2 of total members
Decision3/4 majority of weighted votes
RecommendationsOn GST rates, exemptions, model laws, threshold limits

PSC Key Fact: GST Council decisions are recommendations, not binding (per Supreme Court ruling in Union of India v. Mohit Minerals, 2022). States retain legislative power. However, in practice, Council recommendations are followed uniformly.

Income Tax

Key Facts

FeatureDetail
Legal basisIncome Tax Act, 1961
Administered byCBDT (Central Board of Direct Taxes) under Ministry of Finance
Financial YearApril 1 to March 31
Assessment YearYear following the Financial Year (income of FY 2025-26 assessed in AY 2026-27)
PANPermanent Account Number — 10-digit alphanumeric identifier
TDSTax Deducted at Source — tax collected at the point of income

Income Tax Slabs — New Regime (FY 2025-26)

Income SlabTax Rate
Up to Rs 4,00,000Nil
Rs 4,00,001 - 8,00,0005%
Rs 8,00,001 - 12,00,00010%
Rs 12,00,001 - 16,00,00015%
Rs 16,00,001 - 20,00,00020%
Rs 20,00,001 - 24,00,00025%
Above Rs 24,00,00030%

Rebate under Section 87A: Full tax rebate for income up to Rs 12,00,000 (new regime, effective FY 2025-26 per Union Budget 2025).

Note: PSC may still ask about the old regime. The old regime has basic exemption of Rs 2.5 lakh with 3 slabs (5%, 20%, 30%) and allows deductions under Chapter VI-A.

Types of Income (5 Heads)

HeadExamples
Income from SalaryBasic pay, DA, HRA, allowances
Income from House PropertyRent received, deemed rent
Profits and Gains from Business/ProfessionBusiness income, professional fees
Capital GainsSale of property, shares, mutual funds
Income from Other SourcesInterest, dividends, lottery winnings

History of Tax Reforms in India

YearReform
1860Income Tax first introduced in India by James Wilson (to finance the revolt of 1857 expenses)
1886Income Tax Act of 1886 — first comprehensive income tax law
1961Current Income Tax Act enacted
1991LPG reforms — tax rates reduced, compliance widened
1994Service Tax introduced (initially on 3 services only)
2002Kelkar Task Force on tax reforms
2004VAT introduced by states (replacing Sales Tax)
2003FRBM Act (Fiscal Responsibility and Budget Management) enacted — fiscal discipline
2016101st Constitutional Amendment for GST
2017GST launched on 1 July
2020New income tax regime introduced (optional)
2023New regime made default; old regime optional
2025Rebate limit raised to Rs 12 lakh (Budget 2025)

Other Important Taxes and Duties

Tax/DutyDetails
Corporate TaxTax on company profits; current rate: 22% (existing) or 15% (new manufacturing, Section 115BAB)
Customs DutyTax on imports/exports; levied under Customs Act, 1962
Stamp DutyOn legal documents (property transfer, etc.); state-level
Securities Transaction Tax (STT)On buying/selling securities on stock exchanges
Dividend Distribution TaxAbolished from FY 2020-21 (dividends now taxable in hands of recipient)
Wealth TaxAbolished from FY 2015-16

Fiscal Policy Key Terms

TermMeaning
Fiscal DeficitTotal expenditure minus total receipts (excluding borrowings)
Revenue DeficitRevenue expenditure minus revenue receipts
Primary DeficitFiscal deficit minus interest payments
BudgetAnnual financial statement (Article 112)
Finance CommissionArticle 280; recommends distribution of taxes between Centre and States; currently 16th FC
FRBM Act (2003)Targets fiscal deficit at 3% of GDP

Most asked: GST launch date (1 July 2017), 101st Amendment, GST Council chair (FM), Article 265 (“no tax without law”), Income Tax first introduced (1860, James Wilson), 5 heads of income. These appear repeatedly across PSC papers.

Quick Mnemonics

Five heads of income:SHoBuCaO” — Salary, House Property, Business/Profession, Capital Gains, Other Sources.

GST types:CSIUS” — CGST, SGST, IGST, UTGST (plus Compensation Cess as the extra layer).

Taxes replaced by GST:SELVES CO” — Service Tax, Excise, Luxury Tax, VAT, Entertainment Tax, Surcharge, CST, Octroi.

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