What is progressive taxation?
Progressive taxation is a tax system in which the tax rate increases as a taxpayer's income or wealth rises, so higher earners pay a larger percentage of their income in tax than lower earners, rather than everyone paying the same flat rate or the same fixed amount.
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Core tenets
- Rate increases with income
- The percentage of income paid in tax rises at higher income levels, typically applied through a series of income brackets, each taxed at a higher marginal rate than the one before it.
- Marginal, not average, rate structure
- Higher rates typically apply only to income earned above a given threshold, not to a taxpayer's entire income, so a taxpayer's average tax rate remains below their top marginal rate.
- Distinct from proportional or regressive taxation
- A proportional, or flat, tax charges the same percentage regardless of income; a regressive tax takes a larger percentage from lower earners; progressive taxation is defined specifically by the opposite pattern.
How it works in practice
Progressive taxation is most commonly applied to personal income tax, though the underlying principle, higher rates at higher income or wealth levels, can also apply to other taxes such as estate or wealth taxes.
- Bracketed income tax
- Income is divided into brackets, each taxed at a progressively higher marginal rate as income rises into each successive bracket.
- Progressive wealth or estate tax
- Applies a similarly increasing rate structure to accumulated wealth or inherited estates above a certain threshold, rather than to annual income.
What it is often confused with
Progressive taxation describes a tax rate structure, not itself an economic system; it is used within predominantly capitalist economies as well as more redistributive ones, and does not by itself indicate socialism.
Criticisms and debates
Criticism of progressive taxation centers on its effects on work incentives at the margin and on debates over what fairness in taxation actually requires.
Incentive critique
Argues that high marginal tax rates at the top of the income scale can reduce the incentive for additional work, investment, or entrepreneurial risk-taking among high earners.
Response: Defenders point to empirical research showing the size of this effect varies considerably and is often smaller than critics assume, particularly for rates within the historical range most countries have actually used.
Ability-to-pay defense
Proponents argue that progressive taxation reflects a principle of ability to pay, since an additional dollar of income matters less to a high earner's wellbeing than to a low earner's, justifying a higher rate on income above a certain threshold.
Response: Critics of this reasoning argue that ability-to-pay claims rest on interpersonal comparisons of wellbeing that cannot be measured objectively, making them a matter of value judgment rather than settled economic fact.
Historical examples
- United States federal income tax, ongoing
- Applies a series of increasing marginal tax brackets to personal income, a long-running example of progressive taxation.
- Nordic countries' tax systems, ongoing
- Combine progressive income taxation with substantial public services, often cited in debates over progressive taxation's role in funding an extensive welfare state.
Sources
- 1.Revenue Act of 1913, United States.
- 2.Stanford Encyclopedia of Philosophy. Economic Justice.
- 3.Encyclopaedia Britannica. Progressive tax.