National Insurance Contributions Act 2002

1 Primary Class 1 contributions U.K.

(1) For section 8 of the Social Security Contributions and Benefits Act 1992 (c. 4) substitute—

“8 Calculation of primary Class 1 contributions

(1) Where a primary Class 1 contribution is payable as mentioned in section 6(1)(a) above, the amount of that contribution is the aggregate of—

(a) the main primary percentage of so much of the earner’s earnings paid in the tax week, in respect of the employment in question, as—

(i) exceeds the current primary threshold (or the prescribed equivalent); but

(ii) does not exceed the current upper earnings limit (or the prescribed equivalent); and

(b) the additional primary percentage of so much of those earnings as exceeds the current upper earnings limit (or the prescribed equivalent).

(2) For the purposes of this Act—

(a) the main primary percentage is 11 per cent; and

(b) the additional primary percentage is 1 per cent;

but the main primary percentage is subject to alteration under sections 143 and 145 of the Administration Act.

(3) Subsection (1) above is subject to—

(a) regulations under section 6(6) above;

(b) regulations under sections 116 to 120 below; and

(c) sections 41 and 42A of the Pensions Act (reduced rates of Class 1 contributions for earners in contracted-out employment).”

(2) For section 8 of the Social Security Contributions and Benefits (Northern Ireland) Act 1992 (c. 7) substitute—

“8 Calculation of primary Class 1 contributions

(1) Where a primary Class 1 contribution is payable as mentioned in section 6(1)(a) above, the amount of that contribution is the aggregate of—

(a) the main primary percentage of so much of the earner’s earnings paid in the tax week, in respect of the employment in question, as—

(i) exceeds the current primary threshold (or the prescribed equivalent); but

(ii) does not exceed the current upper earnings limit (or the prescribed equivalent); and

(b) the additional primary percentage of so much of those earnings as exceeds the current upper earnings limit (or the prescribed equivalent).

(2) For the purposes of this Act—

(a) the main primary percentage is 11 per cent; and

(b) the additional primary percentage is 1 per cent;

but the main primary percentage is subject to alteration under section 129 of the Administration Act.

(3) Subsection (1) above is subject to—

(a) regulations under section 6(6) above;

(b) regulations under sections 116 to 119 below; and

(c) sections 37 and 38A of the Pensions Act (reduced rates of Class 1 contributions for earners in contracted-out employment).”