Hi ryanx,
If you are living abroad and not working abroad (employed or self employed) and want to maintain your UK NI record for Pension purposes you can make Class3 Voluntary NICs.
However, if you are employed or self employed abroad you may wish to maintain your UK NI record for other contribution-based benefits such as Employment and Support Allowance, Maternity Allowance in addition to maintaining your basic State Pension and in this case you may be able to pay the Class2 rate of NIC?
The leaflet NI38 Social Security abroad:
Social Security abroad: NI38 explains about the different Classes of NICs and the criteria for applying for voluntary NICs.
If you are applying for Class2 NICs you are advised to enclose a covering letter with the application form CF83 outlining your employment/self employment periods abroad to determine if Class2 will be applicable.
If our International Caseworker Team does not have enough information from the CF83 and/or covering letter to make a decision, they will request more information.
This is normally if dates/periods are unclear. Documentary evidence is not normally required if you have provided sufficient details.
Thank you.