Topping up your state pension
[ch 5: page 70]From 12 October 2015 until 5 April 2017 a State Pension “top up” (the Class 3A voluntary contribution) will be available to those reaching State Pension Age before 6 April 2016. They will be able to top up their State Pension by up to £25 per week.
An online calculator showing the contribution rates based on age and how much people wish to increase pension is available at: www.gov.uk/state-pension-topup.