Hi,
Information about paying voluntary National Insurance contributions whilst overseas may be found in our leaflet NI38 ‘Social Security Abroad’ which you can find here:
Social Security abroad: NI38
If you wish to pay voluntary contributions after reading the leaflet then please complete and return the CF83 application form which you can find in the link above.
Before applying to pay voluntary contributions you may wish to check your current and future entitlement to a British State Pension. You can see details here:
Application for a State Pension forecast
Thank you.