A top-up state pension that replaced the state earnings-related pension scheme (SERPS) (www.practicallaw.com/9-200-3498) from 6 April 2002. S2P is an additional state pension (www.practicallaw.com/1-205-6570) based on an employee's national insurance contributions (NICs) (www.practicallaw.com/8-201-8297) and earnings. S2P is more generous for low and moderate earners than SERPS, and covers certain carers and people with long-term illness or disability. S2P is due to be abolished on 6 April 2016 as part of the government's plans for introducing a single-tier flat-rate state pension.