A referendum is a vote on a single issue.
Each referendum has different rules on who can vote in it.
To vote in a referendum you must:
- be registered to vote
- be 18 or over on the day of the referendum (‘polling day’)
- be a British, Irish or Commonwealth citizen
- be resident at an address in the UK or Gibraltar (or a British citizen living abroad who has been registered to vote in the UK in the last 15 years)
- not be legally excluded from voting
You make one choice between 2 options. Votes are counted for the whole of the UK, not by constituency.