Supertax

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Supertax \Su"per*tax`\, n. [Super- + tax.]
     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 [pounds]3,000 when his total
     income exceeds [pounds]5,000.
     [Webster 1913 Suppl.]

From WordNet (r) 2.0 [wn]:

  supertax
       n : an additional tax on certain kinds of income that has
           already been taxed [syn: {surtax}]