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COM5EJ313 • Principles of Taxation
Module 2
Calicut University • B.Com • Semester 5

Com5ej313 — Module 2

Lecture Notes

  • MODULE II: CLASSIFICATION OF TAXES TAX TYPOLOGY, STRUCTURAL MECHANICS & INDIAN FISCAL FEDERALISM MODULE OVERVIEW Governments deploy diverse tax instruments to finance public goods, redistribute national wealth, and regulate market outcomes. The design of a national tax system requires a sophisticated understanding of how taxes are classified based on their point of assessment, shiftability of burden, rate progression, and valuation methods. This module delivers an in-depth examination of the classification of taxes: the fundamental dichotomy between Direct and Indirect taxes, their shifting mechanics (impact vs. incidence), their respective advantages and disadvantages, and their evolving relative roles in the Indian economy. Furthermore, it explores the OECD classification of tax structures (Progressive, Proportional, Regressive, and Digressive), the distinction between Ad Valorem and Specific duties, and provides a comprehensive architectural overview of direct and indirect taxes levied by the Central and State governments under the constitutional framework of India.

Direct vs. Indirect Impact vs incidence, J.S. Mill's criteria, relative roles in India, structural advantages, and economic trade-offs.

OECD Tax Typology Progressive, Proportional, Regressive, and Digressive tax rate curves; Ad Valorem vs.

Specific tax valuation standards. Indian Tax Architecture Constitutional Seventh Schedule, Union vs State tax powers, GST structural transformation (Article 246A), and direct tax digitization.

  1. Principles of: Tax Classification: Foundations and Criteria In public economics, taxes are categorized according to several distinct analytical criteria, each highlighting a different facet of fiscal policy, revenue buoyancy, and administrative enforcement:
  2. Direct: Taxes vs. Indirect Taxes: Core Concepts and Shiftability The distinction between direct and indirect taxes is the most fundamental classification in the theory and practice of public finance. Formulated by John Stuart Mill and refined by modern economists, the distinction hinges upon the relationship between the impact and the incidence of a tax: 1 Assessment Base Income, corporate profits, accumulated wealth, consumption expenditure, or commodity turnover. ➔ 2 Shiftability Direct taxes (non-shiftable burden) vs Indirect taxes (shiftable via pricing to final consumers). ➔ 3 Rate Structure Progressive (rates rise with income), Proportional (flat rate),

Regressive, or Digressive schedules. ➔ 4 Assessment Mode Ad Valorem (percentage of monetary invoice value) vs Specific (fixed rupee levy per physical unit).

  • THE CLASSICAL ANALYTICAL CONCEPTS: IMPACT, SHIFTING, AND INCIDENCE CORE MECHANICS Impact of Taxation The initial immediate legal liability to pay the tax. The person upon whom the government serves the tax assessment notice bears the impact. It is an administrative and legal fact.

Tax Shifting The economic process through which the statutory taxpayer transfers the monetary burden of the tax to another party through commercial pricing adjustments (forward shifting to buyers or backward shifting to suppliers).

Incidence of Taxation The ultimate resting place of the money burden. The person who ultimately bears the financial cost and cannot shift it further bears the incidence of the tax.

J.S. Mill's Golden Criteria of Direct vs. Indirect Taxation "A direct tax is one which is demanded from the very persons who it is intended or desired should pay it.

Indirect taxes are those which are demanded from one person in the expectation and intention that he shall indemnify himself at the expense of another."

  • Direct Tax: Impact and Incidence fall upon the exact same legal person (e.g., Personal Income Tax,

Corporation Tax). The tax burden cannot be passed on to third parties.

  • Indirect Tax: Impact and Incidence fall upon different persons. The statutory tax impact falls on the manufacturer, importer, or retailer, but the monetary incidence is systematically shifted forward to the ultimate retail consumer through higher commodity prices (e.g., GST, Customs Duties, Excise Duties).
  • COMPREHENSIVE COMPARISON MATRIX: DIRECT TAXES VS. INDIRECT TAXES DICHOTOMY MATRIX Dimension Direct Taxes (e.g., Income Tax,

Corporate Tax) Indirect Taxes (e.g., GST, Customs, Excise)

  1. Shiftability of: Burden
  • Non-shiftable: The statutory taxpayer bears the entire economic burden directly.

Tax shifting is legally and practically impossible.

  • Fully Shiftable: Easily shifted forward to final retail buyers through embedded invoice prices, or backward to factor suppliers.
  1. Assessment: Base Assessed on income earned, net corporate profits realized, capital gains, or accumulated net wealth.

Assessed on expenditure incurred, supply of goods and services, import transactions, or manufacturing volume.

  1. Equity &: Progressivity
  • Highly Progressive: Satisfies vertical equity and ability to pay. Higher income brackets pay progressively higher marginal tax rates.
  • Inherently Regressive: The same rupee tax is paid on a soap bar or pack of biscuits by a billionaire and a daily-wage laborer, burdening the poor more. 4.

Administrative Cost

  • Higher Collection Cost: Requires extensive individual auditing, annual return assessments, scrutinies, and antievasion intelligence.
  • Economical & Automated: Collected at concentrated supply chain bottlenecks, ports, and points of retail sale. High administrative economy.
  1. Civic: Consciousness
  • High Civic Awareness: Taxpayers directly feel the financial pinch, fostering active civic engagement and demands for governmental accountability.
  • Low Civic Consciousness: Concealed within commodity retail prices; consumers pay taxes unconsciously without realizing the fiscal quantum.
  1. Inflationary: Impact
  • Anti-Inflationary: Siphons off disposable household income, directly dampening excessive aggregate demand during inflationary surges.
  • Cost-Push Inflationary: Directly increases the retail prices of goods, cascading across input supply chains and raising living costs.
  1. Evasion: Vulnerability
  • High Propensity for Evasion: Taxpayers may conceal income, inflate business deductions, manipulate accounts, and utilize offshore tax havens.
  • Difficult to Evade: Embedded in invoice prices at transaction points; evasion requires complete collusion between buyer and seller (unrecorded cash sales).
  1. Scope of: Coverage
  • Narrow Base: In developing economies, low per capita income and subsistence thresholds exempt 90%+ of citizens from paying income tax.
  • Universal Coverage: Captures every single consumer who buys goods, including informal workers, foreign tourists, and low-income citizens.
  1. The: Relative Role of Direct and Indirect Taxes in the Indian Economy The relative composition of direct versus indirect tax revenues is a critical barometer of an economy's developmental stage, administrative maturity, and social equity:

THE HISTORICAL TRANSITION OF INDIA'S TAX MIX (POST-1947 TO PRESENT) HISTORICAL TRAJECTORY Early Post-Independence Era (1950s– 1980s)

  • Heavy reliance on indirect taxes: Customs duties and Central Excise contributed over 75% to 80% of gross central tax receipts.
  • Direct tax base was minuscule due to widespread poverty, low corporate industrialization, and confiscatory top marginal tax rates (which reached 97.75% in the 1970s), generating rampant black money and massive tax evasion.

Tax Reforms Era (Chelliah & Kelkar Committees)

  • The Raja Chelliah Committee (1991) recommended rationalizing tariffs, widening the tax base, and lowering direct tax rates to moderate levels to enhance voluntary compliance.
  • The Vijay Kelkar Task Force (2002) advocated modern tax administration, electronic filing, PAN linkage, and the introduction of a comprehensive national Goods and Services Tax (GST).
  • Current Fiscal Reality in India: Direct vs. Indirect Tax Parity In recent fiscal years (2022–2026), India has achieved a healthy structural parity between direct and indirect taxes in Central gross tax collections:

Direct Taxes (~54% – 56% of Gross Central Tax): Corporate Income Tax and Personal Income Tax now generate over ₹19.5 lakh crore annually. Robust corporate earnings, computerized Annual Information Statements (AIS), and systematic TDS cross-matching have expanded the direct tax contribution above indirect taxes.

Indirect Taxes (~44% – 46% of Gross Central Tax): Goods and Services Tax (CGST + IGST), Union Customs duties, and Central Excise (primarily on petroleum products and tobacco) contribute approximately ₹16.5 lakh crore to the Union kitty.

  • State Government Realities: While the Union enjoys a strong direct tax base, State Governments remain overwhelmingly dependent on indirect taxes (over 85%–90% of States' own tax revenue) through SGST, State VAT on petroleum, excise duty on potable alcohol, stamp duties, and motor vehicles tax.
  1. OECD: Classification of Tax Structures: Rates and Progressivity The Organisation for Economic Co-operation and Development (OECD) classifies tax systems into four primary categories based on the relationship between the tax rate and the size of the tax base (income):
  • OECD CLASSIFICATION: PROGRESSIVE, PROPORTIONAL, REGRESSIVE,

AND DIGRESSIVE TAX SYSTEMS RATE STRUCTURES System Type Tax Rate Behavior Marginal vs. Average Rate Distributive Impact on Society Progressive Tax Tax rate increases continuously as the taxable income/base increases.

Marginal Tax Rate > Average Tax Rate (MTR > ATR).

  • Equalizing: Imposes a heavier relative burden on the rich, compressing post-tax income inequality.

Proportional Tax (Flat Tax) Tax rate remains constant regardless of the size of the taxable base.

Marginal Tax Rate = Average Tax Rate (MTR = ATR = Constant).

  • Neutral: Maintains preexisting income distributions without altering relative inequality ratios.

Regressive Tax Effective tax rate decreases as the taxable base increases.

Marginal Tax Rate < Average Tax Rate (MTR < ATR).

  • Unequal: Imposes a disproportionately crushing burden on lower-income households, worsening inequality.

Digressive Tax Tax rate increases progressively up to a defined income ceiling, after which a flat rate applies.

MTR > ATR in early brackets, then converges to MTR = ATR.

  • Practical Compromise: Protects lower-income groups while avoiding punitive top marginal rates that stifle high earners.
  1. Valuation: Methods: Ad Valorem Taxes vs. Specific Taxes When taxing commodities and international commercial trade, governments assess tax liabilities either according to the monetary value of the goods or according to their physical measurement attributes:

Ad Valorem Taxes (Tax by Monetary Value) Definition: "According to value." Levied as a fixed percentage of the transaction value, invoice price, or assessed market value of the good.

  • Examples: 18% GST on smartphones, 28% GST on automobiles, 10% basic customs tariff on imported laptops.

Advantages:

  • Automatic Inflation Protection: When commodity prices rise during inflation, tax revenue automatically expands proportionately without legislative intervention.
  • Built-in Progressivity: Luxury premium goods priced higher yield proportionately larger tax revenue than budget commodities.
  • Disadvantages: Vulnerable to customs underinvoicing, transfer pricing fraud, and complex valuation disputes.

Specific Taxes (Tax by Physical Unit)

  • Definition: Levied as a fixed rupee amount per physical unit of measurement (weight, volume, length, or quantity), regardless of the selling price.
  • Examples: ₹19.90 excise duty per liter of petrol, ₹3,500 customs duty per metric ton of steel, ₹2,000 excise duty per 1,000 cigarette sticks.

Advantages:

  • Administrative Simplicity: Extremely easy to compute and collect; zero valuation disputes or under-invoicing fraud.
  • Targeted Pigouvian Regulation: Highly effective for penalizing exact physical quantities of pollutants, carbon emissions, or nicotine content.
  • Disadvantages: Tax revenues stagnate during inflation unless statutory rates are continuously revised; regressive across luxury vs cheap variants.
  1. An Overview of the: Indian Tax System: Constitutional Architecture The power to levy taxes in India is governed strictly by the Constitution of India. Under Article 265, no tax can be levied or collected without express statutory authority. The legislative competence of the Union and State legislatures is demarcated in the Seventh Schedule across three constitutional lists:

CONSTITUTIONAL DIVISION OF TAXING POWERS (SEVENTH SCHEDULE) CONSTITUTIONAL SCHEME Constitutional List Key Exclusive Taxing Entries Major Taxes Levied Union List (List I) Parliament Exclusive

  • Entry 82: Taxes on income other than agricultural income.
  • Entry 83: Duties of customs including export duties.
  • Entry 84: Duties of excise on petroleum crude, petrol, diesel, natural gas, ATF, and tobacco.
  • Entry 85: Corporation Tax.
  • Entry 86: Taxes on capital value of assets (excluding agricultural land).
  • Entry 92A: Taxes on inter-state sale of goods.
  • Central Direct Taxes: Personal Income Tax, Corporation Tax, Securities Transaction Tax (STT).
  • Central Indirect Taxes: Basic Customs Duty, Central Excise on fuels and tobacco.

State List (List II) State Legislatures Exclusive

  • Entry 46: Taxes on agricultural income.
  • Entry 49: Taxes on lands and buildings.
  • Entry 51: Duties of excise on alcoholic liquors for human consumption and opium.
  • Entry 53: Taxes on consumption or sale of electricity.
  • Entry 54: Taxes on sale of petroleum crude, diesel, petrol, ATF, natural gas, and alcoholic liquor.
  • Entry 57: Taxes on vehicles.
  • Entry 60: Taxes on professions, trades, and employments (Art. 276).
  • State Direct Taxes: Agricultural Income Tax, Land Revenue, Profession Tax, Stamp Duty & Registration Fees on property.
  • State Indirect Taxes: State VAT on petroleum and potable alcohol, State Excise on liquor, Motor Vehicles Tax,

Electricity Duty. Article 246A (Special GST Provision) Concurrent Powers Introduced by the 101st Constitutional Amendment Act,

  1. Empowers both: Parliament and State Legislatures concurrently to make laws with respect to Goods and Services Tax.

Dual GST Architecture:

  • Intra-State Supplies: CGST (Central GST) + SGST (State GST) levied concurrently.
  • Inter-State Supplies: IGST (Integrated GST) levied by the Centre and shared with destination States.
  • Governing Body: GST Council (Article 279A).
  1. Comprehensive: Worked Numerical Problems and Practical Applications WORKED NUMERICAL PROBLEM 1: PROGRESSIVE VS.

PROPORTIONAL VS. REGRESSIVE TAX INCIDENCE RATE STRUCTURE ANALYSIS

  • Context: Consider three citizens with widely varying annual incomes: Citizen Low (₹300,000), Citizen Middle (₹1,200,000), and Citizen High (₹6,000,000). Evaluate their tax burden and effective tax rate (ETR) under three alternative fiscal regimes:

Taxpayer & Annual Income Proportional Regime (Flat 15%) Progressive Slab Regime Regressive Regime (Indirect Sales Tax) Citizen Low Income: ₹300,000 Tax: ₹45,000 ETR: 15.00% Tax: ₹0 (Exempt slab) ETR: 0.00% Spends 90% on goods; tax paid ₹27,000 ETR: 9.00% of income Citizen Middle Income: ₹1,200,000 Tax: ₹180,000 ETR: 15.00% Tax: ₹115,000 (Slab rates) ETR: 9.58% Spends 50% on goods; tax paid ₹60,000 ETR: 5.00% of income Citizen High Income: ₹6,000,000 Tax: ₹900,000 ETR: 15.00% Tax: ₹1,590,000 (30% slab + surcharge) ETR: 26.50% Spends 20% on goods; tax paid ₹120,000 ETR: 2.00% of income

  • Critical Analytical Insight: Under the progressive regime, the Effective Tax Rate rises from 0% to 26.5%, achieving vertical equity. Under the indirect consumption tax regime, the effective burden drops from 9% to 2% of total income, demonstrating why unmitigated indirect taxes are inherently regressive against lower-income classes.

WORKED NUMERICAL PROBLEM 2: REVENUE BUOYANCY: AD VALOREM VS. SPECIFIC TAX DURING INFLATION VALUATION COMPUTATION

  • Context: An economy consumes 1,000,000 units of industrial lubricant annually. Initially, the price is ₹1,000 per unit. In Year 2, severe inflation increases the price by 40% to ₹1,400 per unit, while physical consumption volume remains constant at 1,000,000 units. Compare the government's tax revenue under: (A) An Ad Valorem duty of 20%, versus (B) A Specific duty of ₹200 per unit.

Fiscal Year & Price Scenario Ad Valorem Duty (20% of Value) Specific Duty (₹200 per Physical Unit) Year 1 (Base Year) Price: ₹1,000 / unit Volume: 1,000,000 units Tax per unit = 20% of ₹1,000 = ₹200 Total Revenue = ₹200,000,000 (₹20 Cr) Tax per unit = ₹200 (Fixed) Total Revenue = ₹200,000,000 (₹20 Cr) Year 2 (40% Inflation) Price: ₹1,400 / unit Volume: 1,000,000 units Tax per unit = 20% of ₹1,400 = ₹280 Total Revenue = ₹280,000,000 (₹28 Cr) Revenue expands automatically by 40%.

Tax per unit = ₹200 (Fixed) Total Revenue = ₹200,000,000 (₹20 Cr) Revenue stagnates; real purchasing power falls by 28.5%.

  1. The: Structural Transformation of Indian Indirect Taxation: The GST Architecture Prior to July 1, 2017, the Indian indirect tax landscape was intensely fragmented, characterized by overlapping Central and State levies that created severe tax cascading (tax on tax), inter-state trade barriers, and administrative friction. The implementation of the Goods and Services Tax (GST) via the 101st Constitutional Amendment Act, 2016 represented the most ambitious tax reform in modern Indian history.
  • COMPREHENSIVE CATALOG: TAXES SUBSUMED VS. TAXES RETAINED OUTSIDE GST GST SCOPE Jurisdictional Level Taxes Subsumed into GST Major Taxes Retained Outside GST Central Government Levies
  • Central Excise Duty (on manufactured items)
  • Duties of Excise (Medicinal & Toilet Preparations)
  • Additional Duties of Excise (Goods of Special Importance)
  • Additional Duties of Customs (CVD & Special CVD)
  • Service Tax
  • Central Surcharges & Cesses relating to goods and services
  • Basic Customs Duty (BCD) on imports
  • Central Excise Duty on five petroleum products (crude, diesel, petrol, ATF, natural gas)
  • Central Excise on tobacco products (levied in addition to GST) State Government Levies
  • State VAT / Sales Tax
  • Central Sales Tax (CST)
  • Luxury Tax
  • Entry Tax & Octroi (all forms)
  • Entertainment and Amusement Tax (except local body tax)
  • Taxes on lotteries, betting, and gambling
  • State Surcharges & Cesses relating to supply
  • State VAT on petroleum products
  • State Excise Duty on alcoholic liquor for human consumption
  • Stamp Duty & Registration Charges on real estate transfers
  • Electricity Duty
  • Motor Vehicles Tax
  • Elimination of the Cascading Effect: The Input Tax Credit (ITC) Mechanism The defining economic virtue of GST is the Input Tax Credit (ITC) system, which completely eradicates the archaic "cascading effect" (charging tax on previous taxes paid). Under GST, tax is levied strictly on the incremental value added at each stage of the supply chain:
  • WORKED NUMERICAL DEMONSTRATION: PRE-GST CASCADING VS.

POST-GST VALUE ADDED MODEL CASCADING ANALYSIS

  • Scenario: Manufacturer sells raw furniture to Wholesaler for ₹10,000. Wholesaler adds ₹3,000 value (profit/handling) and sells to Retailer. Retailer adds ₹2,000 value and sells to final Consumer. Compare total tax collected and final price under: (A) Pre-GST Regime (10% Excise + 12.5% VAT on gross invoice with cascading), versus (B) GST Regime (Uniform 18% with full ITC).

Supply Chain Stage Pre-GST Regime (Cascading Tax on Tax) Post-GST Regime (18% with Input Tax Credit) Stage 1: Manufacturer to Wholesaler Cost = ₹10,000 Excise (10%) = ₹1,000 Base for VAT = ₹11,000 (Tax on Tax) VAT (12.5%) = ₹1,375 Invoice to Wholesaler = ₹12,375 Cost = ₹10,000 GST (18%) = ₹1,800 Invoice to Wholesaler = ₹11,800 (Wholesaler claims ₹1,800 full ITC).

Stage 2: Wholesaler to Retailer Purchase Cost = ₹12,375 (Cannot credit Excise) Value Added = ₹3,000 => Base = ₹15,375 VAT (12.5%) = ₹1,922

  • Less: VAT input credit (₹1,375) Net VAT paid = ₹547 Invoice to Retailer = ₹17,297 Net Purchase Base = ₹10,000 Value Added = ₹3,000 => Sale Base = ₹13,000 Output GST (18%) = ₹2,340
  • Less: Input GST Credit = (₹1,800) Net Tax Paid = ₹540 (18% of ₹3,000 value add) Invoice to Retailer = ₹15,340 Stage 3: Retailer to Consumer Base Cost = ₹17,297 Value Added = ₹2,000 => Sale Base = ₹19,297 VAT (12.5%) = ₹2,412
  • Less: VAT credit (₹1,922) Net VAT paid = ₹490 Final Consumer Price = ₹21,709 Net Purchase Base = ₹13,000 Value Added = ₹2,000 => Sale Base = ₹15,000 Output GST (18%) = ₹2,700
  • Less: Input GST Credit = (₹2,340) Net Tax Paid = ₹360 (18% of ₹2,000 value add) Final Consumer Price = ₹17,700 Total Tax Burden Paid by Consumer ₹6,709 (Cascading Tax on Tax) ₹2,700 (Exact 18% of Total ₹15,000 Base)
  • Economic Takeaway: Pre-GST cascading inflated the consumer price to ₹21,709 with ₹6,709 in disguised cumulative taxes. Under GST, seamless Input Tax Credit lowered the final consumer price by ₹4,009 (18.5% price reduction) while ensuring that total tax collected (₹2,700) exactly equals 18% of aggregate value added (₹10,000 + ₹3,000 + ₹2,000 = ₹15,000).
  1. Landmark: Tax Reform Committees and Modernization of the Indian Tax System The contemporary Indian tax system is the evolutionary culmination of sequential reform committees commissioned by the Government of India to modernize fiscal administration and boost compliance:

CHRONOLOGY OF MODERN TAX REFORM COMMITTEES IN INDIA REFORMS TIMELINE Committee & Year Key Diagnoses & Mandate Concrete Policy Implementation & Outcomes Tax Reforms Committee (Raja Chelliah, 1991– 1993) Appointed during the 1991 economic balance-of-payments crisis. Diagnosed high statutory tax rates as the prime driver of evasion and industrial inefficiency.

  • Slashed peak customs duties from over 300% down to 50%.
  • Reduced personal income tax slabs to 3 moderate rates (20%, 30%, 40%).
  • Recommended the historical introduction of Service Tax in 1994 (initially at 5% on stockbrokers, telephone, and general insurance).
  • Advocated conversion of Central Excise into a value-added tax (MODVAT to CENVAT).

Task Force on Direct & Indirect Taxes (Vijay Kelkar, 2002 & 2004) Mandated to simplify direct tax procedures, eliminate distortionary exemptions, and design an integrated national consumption tax.

  • Institutionalized mandatory Permanent Account Number (PAN) linkage.
  • Created the Tax Information Network (TIN) and Online Tax Accounting System (OLTAS).
  • Proposed the foundational conceptual blueprint for the national Goods and Services Tax (GST).

Expert Committee on GAAR (Parthasarathi Shome, 2012) Examined international aggressive tax avoidance by multinational corporations through shell companies in low-tax jurisdictions.

Recommended structured General AntiAvoidance Rules (GAAR) with safe harbor provisions, codified under Chapter X-A of the Income Tax Act, 1961 (effective from Assessment Year 2018–19).

Modern Direct Tax Digital Reforms (2019–2026) Complete digital transformation of tax administration and reduction of corporate tax rates to foster global competitiveness.

  • Slashed corporate tax rate from 30% to 22% (Section 115BAA) and 15% for new manufacturing units (Section 115BAB).
  • Introduced Faceless Assessment and Faceless Appeal Schemes to eliminate territorial corruption.
  • Deployed Annual Information Statement (AIS) and Project Insight for automated big-data financial reconciliation.
  • Synthesis: The Architectural Balance of Modern Tax Policy A balanced, resilient national fiscal system cannot rely exclusively upon either direct or indirect taxation.

Direct taxes uphold the democratic ethos of social justice and vertical equity, ensuring that those who possess substantial economic capacity contribute proportionately to the nation. Concurrently, broadbased indirect taxes—epitomized by India's harmonized GST architecture—provide administrative economy, universal civic participation, and buoyant, transaction-based revenues essential to fund modern infrastructure and developmental expenditure. By harmonizing progressive direct taxation with transparent, efficient indirect taxation, modern economies achieve both fiscal adequacy and social equity.

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