National Insurance

Class 1 (employed)
contracted in
2007/08 Rates
Weekly earnings
Employer
Employee
Up to £100
Nil*
Nil*
£100.01 - £670
12.8%**
11%**
Over £670
12.8%**
£62.70 +1%***
* Entitlement to contribution-based benefits retained for earnings between £87.01 and £100 per week.
** On earnings above £100.
*** On earnings above £670.
Class 1A (employers) 12.8% on employee taxable benefits
Class 1B (employers) 12.8% on PAYE Settlement Agreements
Class 2 (self-employed) flat rate per week £2.20
small earnings exception p.a. £4,635
Class 3 (voluntary) flat rate per week £7.80
Class 4 (self-employed) 8% on profits between £5,225 and £34,840 plus 1% on profits over £34,840