The website for applications for residence permits for British nationals is open.

As a reminder :

This site is only open to British nationals and their family members, of British nationality or third country nationals, residing in France or coming to settle in France before December 31, 2020.

British nationals residing in France or coming to settle in France before December 31, 2020 must obligatorily apply for a residence permit online, mentioning « withdrawal agreement » on this site.

British nationals arriving in France after January 1, 2021 will have to apply for a visa at the consulate and then apply for a residence permit at the prefecture (application of common law for foreigners):

• For students and doctoral students with student status: application for VLS-TS student ;
• For researchers: application for a « talent researcher passport » visa (therefore a hosting agreement must be provided).