EU settlement scheme
If you want to remain in the UK after Britain leaves the EU then you’ll need to apply to the EU Citizens Settlement Scheme by 30 June 2021, or by 31 December 2020 if the UK leaves the EU without a deal.
You will be eligible for settlement if you have started living in the UK before the end of the transition period if the UK leaves with a deal. If there is no deal, you will need to have started living in the UK before ‘exit day’ it leaves the EU to apply.
The scheme is now open for registration and this can be done using various methods, including an app for android mobile and tablet devices to upload relevant documents.
You can find more details on the GOV.UK website.
This page has more information about the action EU citizens are urged to take.
This page has more information about how EU famlies can apply for settled status.