surtax

Definitions of surtax
  1. noun
    an additional tax on certain kinds of income that has already been taxed
    synonyms: supertax
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    type of:
    income tax
    a personal tax levied on annual income
  2. verb
    levy an extra tax on
    surtax luxury items that cost more than $1,000”
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    type of:
    tax
    levy a tax on
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