Yes for the moment nothing changes.
You can come with a simple ID card or passport to work or study or both.
The effective date of Brexit is 01/01/2021.
This is the official site of the British Government: https://www.gov.uk/visit-europe-brexit
Want to know more? Good reading
What you will need to enter the UK
If the UK leaves the EU with an agreement
If the UK leaves the EU with an agreement, what you will need to enter the UK will not change until 2021.
Find out if you need to apply for a visa to enter the UK.
If the UK leaves the EU without an agreement
If you are an Irish citizen, you can enter the UK without a visa, as you can now. You will be able to work or study while you are here.
You can enter the UK without a visa if you are a citizen of another EU or EEA country, or Switzerland. You will be able to work or study while you are here.
The government proposes to end the free movement, but it still has to be approved by Parliament. Once free movement is over, if you are a citizen of another EU or EEA country, or Switzerland, you will still be able to enter the UK without a visa, but only for a maximum period of 3 month. Come back here for updates and find out what you need to do to come to the UK over 3 months.
In other cases, determine if you need to apply for a visa to enter the UK.
What you need to show on the British border
What you have to show at the British border will not change, even if the UK leaves the EU without agreement.
You must present a valid passport or national identity card if you are a citizen of:
an EU country
Iceland, Liechtenstein, Norway or Switzerland
You can use automatic ePassport barriers in some airports if your passport contains a "chip" and you are 12 years old or older. The use of electronic passport doors is usually faster.
If you are not a citizen of one of these countries, you will need to present a valid passport.
You can still enter the UK using a passport that expires in less than 6 months.
Find out how to pass border controls as quickly as possible.
School Travelers Entering the UK
Schoolchildren from third countries residing in EU or EFTA countries will continue to be able to travel to the United Kingdom under the List of Travelers visa system. They do not need to obtain their own travel document or visa before December 31, 2020.
This applies if the UK leaves the EU with an agreement and if the UK leaves the EU without agreement.
What you have to show at the border will not change. Students who do not have their own travel document must have photo ID or a recent photo attached to the Traveler List Form. The form must also be authenticated by the responsible authority of the Member State concerned to confirm the student's residence status and the right to return to be accepted as a travel document.
Driving in the UK
If you have a non-British license
How you can drive in the UK will not change after Brexit.
Check if you can use your driver's license in England, Scotland, Wales or Northern Ireland.
If your vehicle is not insured in the UK
You must have a "green card" insurance if all of the following conditions are met:
your vehicle is insured in an EU or EEA country
the UK leaves the EU without agreement
the UK leaves the EU without any agreement in place on driving without a green card
Check back here to see if an agreement has been reached to drive without a green card.
If your vehicle is insured in a non-EU or EEA country, what you will need to do will depend on your membership of the green card system.
If your country is a member, you will need to carry a green card.
If your country is not a member, your vehicle will need UK vehicle insurance.
What you can bring to the UK
If the UK leaves the EU without an agreement, changes will be made:
how to bring horses to and from the UK
how you bring plants, animals or their products in danger in the UK
There will be no change to:
what you can bring in your carry-on
what food you can bring
what plants you can bring
Bring your pet to the UK
The rules for bringing pets from the UK to EU countries will change if the UK leaves the EU without any agreement. a Room