For employees’ NIC, see Employee Taxation page.
Self employed people pay NIC on their profits alongside the self-assessed income tax at these rates:
Anyone not in work who wants to maintain state pension rights may pay Class 3 voluntary NIC at £14.10 pw. From 12 October 2015 to 5 April 2017 those who reach state retirement age before 6 April 2016 can top-up their state pension entitlement by paying voluntary amounts of Class 3A NIC.
Someone who is both employed and self employed may pay Class 1, Class 2 and Class 4 NIC. However, for 2015/16 and later years, both Class 2 and Class 4 NIC are collected through self-assessment. If the taxpayer has paid more than the annual limit of NIC for the year, Class 4 NIC will be charged at 2% rather than 9% for the year.