Overseas electors
The 15-year limit on voting for British citizens living abroad has ended. Any British citizen previously registered to vote in the UK, or who previously lived in the UK, will be able to register to vote, regardless of how long they've lived abroad.
British citizens living abroad will be able to register to vote using the address where they were previously registered. If they were never registered to vote, they can register using the last UK address they lived at.
British citizens living abroad will no longer have to register as an overseas voter every year. Instead, they will have to register every 3 years.
Please see the guidance here Overseas Electors.