Can I travel to the UK with an ID card after Brexit or do I need a passport?

You can use your identity (ID) card to travel to the United Kingdom (UK) up to and including 30 September 2021. From 1 October 2021 you will need a valid passport. If you become a UK resident on or before 31 December 2020, you can continue to use your ID card to travel between the Netherlands and the UK until at least the end of 2025.  

Visiting the UK from 1 January 2021

You can use your ID card to travel to the UK up to and including 30 September 2021. The UK is made up of England, Scotland, Wales and Northern Ireland. From 1 October 2021 you will need a valid passport. For more information on travelling to the UK from 2021

Dutch nationals living in the UK by 31 December 2020

If you become a UK resident on or before 31 December 2020, you are covered by the withdrawal agreement. This means you can continue to use your ID card to travel between the Netherlands and the UK until at least the end of 2025. You may need to show proof that you fall under the withdrawal agreement.