supertax

[ soo-per-taks ]

/ ˈsu pərˌtæks /

Chiefly British. a tax in addition to a normal tax, as one upon income above a certain amount.

a surtax.

Origin of supertax

First recorded in 1905–10; super- + tax

What we call the normal income tax is the ordinary tax; what we call the surtax is the supertax.

The American Language |Henry L. Mencken
Thank Heaven, she says, hes got somebody thatll be able to keep him when the supertax is put up to twenty shillings in the pound.

Press Cuttings |George Bernard Shaw
For situations of this kind a supertax on large estates would seem to hold the promise of a large measure of relief.

Distributive Justice |John A. (John Augustine) Ryan
The rate of this supertax should increase with the size of the estate above the fixed maximum.

Distributive Justice |John A. (John Augustine) Ryan

Income-tax and supertax doubled and charged on one-third of the current year's income.

The Annual Register 1914 |Anonymous

supertax

/ (ˈsuːpəˌtæks) /

a tax levied in addition to the basic tax, esp a graduated surtax on incomes above a certain level