(1) An individual who makes a claim is entitled to a personal allowance of [£9,640]¹ for a tax year if the individual—

(a) is 75 or over at some time in the tax year, and

(b) meets the requirements of section 56 (residence etc).

(2) For an individual whose adjusted net income for the tax year exceeds [£22,900]¹, the allowance under subsection (1)—

(a) is reduced by half the excess, but

(b) is not reduced below the amount of a personal allowance under section 35.

(3) For the meaning of “adjusted net income” see section 58.