The Council Tax Benefit (General) Regulations 1992

Deduction of tax and contributions for self-employed earners

23.—(1) The amount to be deducted in respect of income tax under regulation 22(1)(b)(i), (3)(b)(i) or (9)(a)(i) (calculation of net profit of self-employed earners) shall be calculated on the basis of the amount of chargeable income and as if that income were assessable to income tax at the basic rate of tax in the year of assessment in which the claim was made less only the personal relief to which the claimant is entitled under sections 257(1), (6) and (7) and 259(1)(a) and (2) of the Income and Corporation Taxes Act 1988 (personal relief) as is appropriate to his circumstances; but, if the assessment period is less than a year, the amount of the personal relief deductible under this paragraph shall be calculated on a pro-rata basis.

(2) The amount to be deducted in respect of social security contributions under regulation 22(1)(b)(i), (3)(b)(ii) or (9)(a)(ii) shall be the total of—

(a) the amount of Class 2 contributions payable under section 11(1) or, as the case may be, (3) of the Contributions and Benefits Act 1992 except where the claimant’s chargeable income is less than the amount for the time being specified in section 11(4) of that Act (small earnings exception); and

(b) the amount of Class 4 contributions (if any) which would be payable under section 15 of that Act (Class 4 contributions recoverable under Tax Acts) in respect of profits or gains equal to the amount of that income.

(3) In this regulation “chargeable income” means—

(a) except where sub-paragraph (b) applies, the earnings derived from the employment less any expenses deducted under paragraph (3)(a) or, as the case may be, (4) of regulation 22;

(b) in the case of employment as a child minder, one third of the earnings of that employment.