flat tax

noun

A tax, usually income tax, whose percentage rate or currency value remains constant, regardless of the amount to which the tax is applied.

Opposite
graduated taxprogressive tax

Meanings

nounflat tax (plural flat taxes)

plural flat taxes · alternative flat rate tax

  1. economicsA tax, usually income tax, whose percentage rate or currency value remains constant, regardless of the amount to which the tax is applied.

    A flat tax means scrapping all income tax bands and the various exemptions and loopholes and replacing them with a single low rate.

    2005 August 19, George Trefgarne, “The flat tax secrets that worried Brown did not want us to see”, in Telegraph, UK, retrieved 27 Nov 2015
    2 more examples

    Several candidates for the 1996 Republican Presidential nomination and some of the top Republican leaders in Congress are advocating replacing the graduated income tax with a flat tax.

    1995 April 18, David E. Rosenbaum, “Washington Memo: Debate on Flat Tax Revives Simplicity vs. Fairness Issue”, in New York Times, retrieved 27 Nov 2015

    Eyman's measure also would repeal the state tax on boats, 1 percent of the vessel's value, and replace it with a flat tax of $10.50 a year.

    2001 November 18, David Ammons, “Eyman takes aim at some more taxes”, in Seattle Post-Intelligencer, retrieved 27 Nov 2015

Synonyms & antonyms

Opposite
graduated taxprogressive tax

Translations

Dutch vlaktaks
  • vlaktakstax
Finnish tasavero
  • tasaverotax
Hungarian egykulcsos adó
  • egykulcsos adótax
Polish podatek liniowy
  • podatek liniowytax
Cite this entry
APA

flat tax. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/flat%20tax

MLA

“flat tax.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/flat%20tax. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “flat tax,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/flat%20tax.

Source: flat tax on Wiktionary, CC BY-SA 4.0.