Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An additional tax on something that has already been taxed
  • n. A higher rate of an existing tax

from the GNU version of the Collaborative International Dictionary of English

  • n. A tax in addition to the usual or normal tax; specif., in the United Kingdom, an income tax of sixpence for every pound in addition to the normal income tax of one shilling and twopence for every pound, imposed, by the Finance Act of 1909-1910 (c. 8, ss 66, 72), on the amount by which the income of any person exceeds £3,000 when his total income exceeds £5,000.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an additional tax on certain kinds of income that has already been taxed

Etymologies

super- +‎ tax (Wiktionary)

Examples

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