From 6 April 2018 Class 2 NIC will be abolished and Class 4 NIC reformed to include a new threshold (to be called the Small Profits Limit).

Access to contributory benefits for the self-employed is currently gained through Class 2 NIC. After abolition, those with profits between the Small Profits Limit and Lower Profits Limit will not be liable to pay Class 4 NIC but will be treated as if they had for the purposes of gaining access to contributory benefits. All those with profits at or above the Class 4 Small Profits Limit will gain access to the new State Pension, contributory Employment and Support Allowance and Bereavement Benefit.

Those with profits above the Lower Profit limit will continue to pay Class 4 NIC.

From 6 April 2018 Class 3 NIC, which can be paid voluntarily to protect entitlement to the State Pension and Bereavement Benefit, will be expanded to give access to the standard rate of Maternity Allowance and contributory Employment and Support Allowance for the self-employed.