Provided you are listed on the electoral register and at least 18 years of age on the day of the election, you can vote at the following elections:
British, Irish or Commonwealth citizen
You can vote at all elections.
Eligible European citizen (not British or Irish)
You can vote at Northern Ireland Assembly and Local Council elections. European citizens are not eligible to vote at UK Parliamentary elections.
Overseas Elector
You can vote at UK Parliamentary elections. You are not eligible to vote at Northern Ireland Assembly or Local Council elections. You can only vote by proxy (where you appoint someone to vote on your behalf) as postal votes cannot be issued outside the UK. If you happen to be at home on the day of the election you can vote in place of your proxy. You can download a form to register as an Overseas Elector from the Special category registration page.