UK nationals who applied for a Brexit residence permit online without a deal and have since moved to another department will need to complete a new online application. From 1 October 2021, all UK citizens must be in possession of either a special residence permit provided for in the Withdrawal Agreement (if they arrived in France before 31 December 2020) or a standard residence permit (if they arrived in France on or after 1 January 2021). If you, as an EU citizen, already have a residence card at all times, you should take advantage of a simple exchange. If you don`t have one, you`ll need to apply with more information to prove your 5-year legal residency. British nationals wishing to apply for French nationality after the date of the withdrawal of the United Kingdom from the European Union, however, in order to ensure legal certainty, transitional provisions will be considered to allow British nationals who have lived in France for several years until the date of withdrawal and who, as such, on the basis of the legislation in force before that date, Ont Nationality — submit an application for the acquisition of French nationality without being excluded by the illegality of their residence. Additional information about visas and requirements, including how to apply for the residence card. Persons with a residence of less than 5 years must apply for one of the Residence Permits, valid between 1 and 5 years. Withdrawal agreements give you the right to obtain 5 years of residence and then apply for a permanent card. However, those who arrive in France after the withdrawal date or after December 31, 2020, if there is a withdrawal agreement, will have to sign a republican integration treaty in the same way as citizens of non-EU countries. Article 21-27, paragraphs 2 and 3, of the French Civil Code provides: “No one may acquire French nationality or be admitted to this nationality if he (…) has been the subject either of an exclusion measure that has not been expressly revoked or revoked, or of a banishment from French territory that has not been fully implemented. The same applies to persons whose stay in France is illegal under the laws and conventions relating to the stay of foreigners in France. ».