Where your deed poll does the job
At the polling station
If your photo ID is in your old name, GOV.UK says you can take a document that proves you’ve changed your name, or re-register in your new one. GOV.UK: photo ID you’ll need to vote
Right to work checks
The Home Office asks employers to check the reasons for different names across your documents, such as a deed poll, and to keep a copy. Home Office: right to work checklist
DBS checks
You list every name you’ve used, and your deed poll shows a recent change, alongside the identity documents the DBS asks for.
Your bank
Banks use your deed poll as proof of your name change. Some also want photo ID in your new name, so update your licence or passport first if yours does.
Our guides to changing your name with your bank and the electoral register go into the detail.