When you get a job, your employer will ask to see some documents, and you’ll need to show these to start working.
If you’re a UK citizen, you need to bring either your passport, or your full birth certificate with proof of your National Insurance number.
If you’re a citizen of the European Economic Area (EEA), you need to bring either your passport, national ID card, residence permit, or full birth certificate with proof of your National Insurance number.
For citizens from the rest of the world, you need your Biometric Residence Permit card (BRP), or your passport showing a visa or residence permit and proof of national insurance. As soon as you know you want to work in the UK, you should apply for a National Insurance Number.
You also won’t want to miss out on getting paid, so you will need to open a UK bank account.