From the website
Apply for photo ID to vote
It’s free to apply. You’ll need
a recent, digital photo of yourself
your National Insurance number
You can still apply if you do not have a National Insurance number. You’ll need to provide other documents to prove your identity, for example a birth certificate, bank statement and utility bill.
Start now
Other ways to apply
You can also apply by post.
There’s a different form for applying by post if you live abroad, you’re in the armed forces, a Crown Servant or a British Council employee.
You’ll need to print, fill out and send the form to your local Electoral Registration Office.
Get help applying
You can get help applying from your local Electoral Registration Office
There’s an easy read guide about applying for a Voter Authority Certificate