Determination of tax rates etc
(1) For section 64 (1) (Tax on bookmaking), the Minister may, in writing, determine—
(a) the rate of tax applying to the turnover of race bookmakers in a period stated in the determination; and
(b) how the tax is to be calculated; and
(c) different rates for different amounts or percentages of turnover; and
(d) when the tax is payable.