Find out below which changes should be reported, how soon to report them, and who to report them to.
I'm returning to the UK after more than 12 months away
You'll need to access your online account, select the option for a replacement Police registration certificate (PRC) as your existing PRC will no longer be valid, and book an appointment to attend the Overseas Visitors Records Office (OVRO).
Please make sure you bring:
your police registration certificate (PRC)
your biometric residence permit (BRP) with UKVI/Home Office approval letter or email
your passport containing your visa
proof of residential and study or work address
£34 registration fee
If you live and are registered with another police force outside of the London or City of London area and need to obtain a replacement PRC, you must report to the police force you currently live in and not the police force covering the area you work or study if this happens to be in London.