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Difficulty: Very hardPrinciples and Canons of Taxation

An economic analyst evaluates a national tax structure where two individuals with identical gross incomes of ₦4,000,000₦4,000,000 pay different net taxes due to statutory allowances for medical expenses. Simultaneously, the tax structure applies higher marginal tax rates to higher income brackets. Which combination of taxation canons and equity principles is directly demonstrated by these two features?

  1. The canon of equity, incorporating horizontal equity through deduction-adjusted ability to pay and vertical equity through progressive taxation.Answer
  2. B
    The canon of certainty, incorporating horizontal equity through flat-rate taxation and vertical equity through regressive tax deductions.
  3. C
    The canon of economy, incorporating vertical equity by minimizing collection costs and horizontal equity by taxing all gross incomes at equal marginal rates.
  4. D
    The canon of convenience, incorporating horizontal equity through tax incidence shifting and vertical equity through proportional taxation.

Answer

The canon of equity, incorporating horizontal equity through deduction-adjusted ability to pay and vertical equity through progressive taxation.
The correct response correctly classifies both features under the Canon of Equity. Adjusting taxable income for medical expenses ensures that taxpayers with identical net ability-to-pay are treated equally, which defines horizontal equity. Applying higher marginal tax rates to higher income brackets ensures that higher earners contribute a larger proportion of their income, which defines vertical equity.

Step-by-Step Solution

1
Analyze the first feature: individuals with identical gross incomes paying different net taxes due to medical deductions.
Taxpayers with equal gross income have different real tax-paying capacities due to mandatory medical expenses. Allowing deductions ensures taxpayers with equal net economic capacity pay equal tax, fulfilling horizontal equity.
Horizontal equity mandates equal tax treatment for individuals in equal economic positions after accounting for necessary living adjustments.
2
Analyze the second feature: applying higher marginal tax rates to higher income brackets.
Higher income earners pay a higher proportion of their income in taxes, fulfilling vertical equity through a progressive tax structure.
Vertical equity requires that individuals with greater economic capacity contribute a higher percentage of their income.
3
Synthesize the two features under Adam Smith's canons of taxation.
Both features embody the Canon of Equity (the ability-to-pay principle).
The Canon of Equity dictates that taxpayers should contribute to government support in proportion to their respective abilities to pay.

Key Concept

Canons of Taxation and Tax Equity Principles
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Topics

Principles and Canons of Taxation

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