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UK Law Reference
All sections of National Insurance Contributions (Rate Ceilings) Act 2015
2015 c. 35, s.1

Section 1 — Main and additional primary percentages

This version in force from 2015-12-17

Snapshot: 2026-08-24

Reproduced from legislation.gov.uk (Crown Copyright, Open Government Licence v3.0). Amendments made after 2026-08-24 may not be reflected — always check the official text .

(1) In relation to primary Class 1 contributions payable in respect of any period in a tax year to which this section applies—

(a) the main primary percentage shall not exceed 12%, and

(b) the additional primary percentage shall not exceed 2%.

(2) This section applies to a tax year which begins after the day on which this Act comes into force but before the date of the first parliamentary general election after that day.

(3) In this section, “main primary percentage” and “additional primary percentage” are to be construed in accordance with section 8(2)(a) and (b) of SSCBA 1992 and SSCB(NI)A 1992.