A "transition period" after the UK leaves the EU will not continue beyond 31 December 2020, the EU announced today.
The EU said the UK would have to continue to follow its rules and could not adopt an "a la carte" approach.
The UK previously said the temporary arrangements should last for about two years after Brexit in March 2019.
Terms of the transition period, which the UK calls an implementation phase, have yet to be negotiated between the two sides.