supertax

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.

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

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

The rate of this supertax should increase with the size of the estate above the fixed maximum.