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Encyclopedia > Progressive taxation

A progressive tax, or graduated tax, is a tax that is larger as a percentage of income for those with larger incomes. It is usually applied in reference to income taxes, where people with more income pay a higher percentage of it in taxes. The term progressive refers to the way the rate progresses from low to high, but over time it has become confused with modern.

The opposite of a progressive tax is a regressive tax. In this case, the amount of the tax is smaller as a percentage of income for people with larger incomes. Many taxes other than the income tax tend to be regressive in practice: e.g. most sales taxes (since lower income people spend a larger portion of their income), social security taxes (because they exclude interest, rent, and other kinds of income common for the affluent), excise taxes, and so on. (A flat tax, also called a proportional tax, is one where the tax amount is fixed as a function of income, and is a term mainly used only in the context of income taxes.)

There are two main arguments for a progressive tax system. First, if the utility gained from income exhibits diminishing marginal returns, as many psychologists assert (see Weber-Fechner law), then for the tax burden to be vertically equitable, those with higher incomes must be taxed at a higher rate.

Second, it is argued that people with higher income tend to have a higher percentage of that in disposable income, and can thus afford a greater tax burden. A person making exactly enough money to pay for food and housing cannot afford to pay any taxes without it causing material damage, while someone making twice as much can afford to pay up to half their income to taxes.

The converse argument is that too progressive a tax rate acts as a disincentive to work; in the previous (extreme) example, there would be no monetary incentive at all for the first person to try to double his or her income. In practice, however, no advocates of a progressive tax go as far as that extreme example, so they often argue that the taxes they propose have very little effect (or even no effect at all) on incentives.

Opponents also claim that progressive taxation shifts the total economic production of society away from capital investiments (tools, infrastructure, training, research) and toward present consumption goods--this could happen because high-income earners tend to pay for capital goods (through investment activities) and low-income earners tend purchase consumables. Smithian theory says that spending more on consumption goods and less on capital goods will slow the raise of the standard of living, and possibly even reduce it (capital goods increase future production possiblities).


Personal Income Tax Brackets

United States

For example, in the United States as of 2004 there are six "tax brackets" that are used to calculate the percentage of taxable income that must be paid to the United States Treasury. These percentages in 2003 and 2004 are:

  • 10%: $2,651 - $9,700
  • 15%: $9,701 - $30,800
  • 25%: $30,801 - $68,500
  • 28%: $68,501 - $148,700
  • 33%: $148,701 - $321,200
  • 35%: $321,201 and up

If an individual's taxable income falls within a particular tax bracket, the individual pays the listed percentage of income on each dollar that falls within that monetary range. For example, a person who earned $10,000 in 2003 would be liable for 10% of each dollar earned from the 2,651st dollar to the 9,700th dollar, and then for 15% of each dollar earned from the 9,701st dollar to the 10,000th dollar, for a total of $749.75. This ensures that every rise in a person's salary results in an increase of after-tax salary.


An annual after tax income of $27,000 results in a tax cost of

  • 30,800 (gross income)
  • (9,700-2,651)*0.1=704.9 (bracket 1)
  • (30,800-9,701)*0.15=3,164.85 (bracket 2)
  • 704.9+3,164.85=3,869.75 (income tax excluding social security tax)
  • 30,800*0.12=3,696 (social security tax)
  • 3,869.75+3,696=7,565.75 (tax on income including social security tax)
  • 30,800-3,869.75=26,930.25 (after tax income)

$7,566 (28% of after tax income) (includes "social security" of 12%, income tax of 13%).


Sweden has three income tax brackets (2004) ($1 as 7 kronor): ([1] (http://www.skatteverket.se/english/main.html)) ([2] (http://www.skatteverket.se/infotext/ackink.html))

  • 31% (federal and state tax) + 200 kronor: 0 - 291,800 kronor ($0 - $41,700)
  • 31% + 20% (federal tax) + 200 kronor: 291,800 - 441,300 kronor ($41,700 - $63,000)
  • 31% + 25% (federal tax) + 28,280 kronor: 441,300 and up ($63,000 -)

Income tax is payed on the amount that falls within each bracket. To ensure that each increase in gross income is accompanied by an increase in net income.


An annual after tax income of 190,000 kronor ($27,000) results in a tax cost of

  • 500,000 (gross income)
  • 500,000*0.62=228,255 (income tax excluding social security tax)
  • 500,000*0.33=165,000 (social security tax)
  • 310,000+165,000=393,255 (tax on income (income tax and social security tax))
  • 500,000-310,000=271,745 (after-tax income)

393,255 kronor (145% of after-tax income) (includes "social security" of 33%, effective income tax of 46%).

Problems, alternatives, similar concepts

The tax bracket system has a few problems, however. Bracket creep occurs when the amounts are not tied to the cost of living, due to inflation tax rates would thus slowly rise.

An alternate system of having taxes with an increasing relative rate is a negative income tax, which eliminates the step problem.

Tax progressivity or regressivity should not be confused with two similar concepts: tax neutrality and tax incidence. Tax neutrality refers to whether similar things are taxed in similar ways; if for example taxes on gasoline and diesel are different then this will probably lead to a distortion in demand between the two fuels. If the tax system does not distort demand then it is said to be neutral. Tax incidence refers what group ultimately bears the burden of a tax. For example, sales taxes, which are nominally applied to businesses, are passed through to consumers as higher prices - although the degree to which a sales tax is passed on to the consumer depends on elasticity, and one can measure the effective progressivity of a tax by income group as well as breaking the impact down by geographic area or other factors.

See Also

External links

  • Revised 2003 Tax Rate Schedules (http://www.irs.gov/formspubs/article/0,,id=109877,00.html)

  Results from FactBites:
progressive tax: Information from Answers.com (3650 words)
Progressive taxes are a stabilizing force in periods of inflation or recession because the amount of tax revenue changes more than proportionately with an increase or decrease in income.
The opposite of a progressive tax is a regressive tax, where the amount of the tax is smaller as a percentage of income for people with larger incomes than it is for those with lower incomes.
High progressive taxes may encourage emigration because taxes are not internationally harmonized, so very high earners are sometimes able to relocate in order to pay less tax, or find tax havens for their income.
Taxation and Redistribution (5731 words)
Generally speaking and in terms of the progressive character of the two tax systems as a whole, it would seem that the contribution made by progression in the two countries is between 2.5 and 8.5 per cent of total revenue, or between 0.5 and 2 per cent of gross national income.
progressive throughout and that, through redistributive expenditure on subsidies and services, the income of the very lowest classes has been increased (so far as these things can be meaningfully measured: what can be shown is always only the cost and not the value of the services rendered) by as much as 22 per cent.
Even if progressive taxation does not name the individuals to be taxed at a higher rate, it discriminates by introducing a distinction which alms at shifting the burden from those who determine the rates onto others.
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