National Insurance Contributions 2011/12

National Insurance


For employees’ NIC, see Employee Taxation page.

Self-employed people pay:


  • weekly Class 2 contribution of £2.50pw, unless they claim exception for small earnings (below £5,315). Usually paid monthly by direct debit


  • Class 4 NIC at 9% of taxable profits between £7,225 and £42,475. Profits over £42,475 will be charged at 2%. This is assessed and paid with the self-assessment income tax on profits

    Class 3 voluntary NIC may be paid at £12.60 per week by someone who is not in work but who wishes to maintain state pension rights.

Annual limits
Someone who is both employed and self-employed will pay Class 1, Class 2 and Class 4 NIC. It is possible to apply for deferment of Class 4 so that the Class 1 paid on earnings can be taken into account. Class 4 will then be charged through self-assessment at only 2%, and the overall balance of liability will be settled at a later date.