Default scenario

Britain leaves according to original article 50 terms 29 March

Short extension

Britain leaves in late May or June, and enters transition period until at least December 2020

Long extension

Britain stays in the EU until at least the end of 2019, with the final outcome unknown

April 2019

January 2020

December

Default scenario

Britain leaves according to original article 50 terms 29 March

Short extension

Britain leaves in late May or June, and enters transition period until at least December 2020

Long extension

Britain stays in the EU until at least the end of 2019, with the final outcome unknown

April 2019

January 2020

December