National Insurance Tax Rebate - How spouses and civil partners of armed forces personnel posted overseas can fill gaps in their National Insurance record.
If you have gaps in your National Insurance record after 6 April 1975 because you accompanied your serving spouse on a tour outside the United Kingdom, you can claim back the missing years BUT this only applies to those who are eligible for the New State Pension introduced in April 2016 – it does not apply to those already in receipt of a pension under the old state pension scheme. Those eligible are men born on or after 6 April 1951 and women born on or after 6 April 1953".