For a State Pension forecast, contact the Future Pension Centre on 0800 731 0175, Monday to Friday, 8am to 6pm. If you use a textphone, call 0800 731 0176. You can also check your forecast online through the official GOV.UK State Pension forecast service, which may show your qualifying years and whether paying voluntary National Insurance could affect your entitlement. The Department for Work and Pensions makes the final decision based on your individual National Insurance record.