The Home Office maintains a list of the only documents we can accept. It is divided into List A (documents which show a continuous right to remain) and List B (documents which show a temporary right to remain). The lists are available in
this document.
From 6 April 2022, all biometric card (Biometric Residence Permit - BRP, Biometric Residence Card - BRC) holders will evidence their right to work using the Home Office online service only. Employers will no longer be able to accept physical cards for the purposes of a right to work check even if it shows a later expiry date.