Article 21, paragraphs 2 and 3, of the French Civil Code states that „no one may acquire French nationality or be reintroduced into that nationality if he (…) either a non-express decision that was not expressly revoked or overturned, or a ban on French territory that was not fully enforced. The same applies to people whose stay in France is illegal with regard to the legislation and agreements of residence of foreigners in France. At the European Council on 21 March 2019, Member States agreed to postpone the UK`s withdrawal, originally scheduled for 29 March. Two alternative exit dates were planned: the European Council met again on 10 April 2019 for an extraordinary Brexit summit and granted the UK a further extension (in response to Theresa May`s request on 5 April). A new withdrawal deadline has been set in the UK until 31 October 2019. The decision to confirm the extension was adopted on 11 April 2019. EU residence permits issued to British nationals and their family members will no longer be valid from 1 October 2021. An online application must be submitted on this website in order to obtain a residence permit marked „UK withdrawal agreement from the EU“. Under the withdrawal agreement, social protection rules for individuals and businesses engaged in international mobility remain unchanged during the transition period. This gives the parties time to put in place the building blocks of the future relationship between the EU and the UK, which have yet to be negotiated. If you have already applied for a Brexit residence permit without a deal between 9 October 2019 and 31 January 2020, you do not need to apply online again. Your application has been reviewed and will be processed by the prefecture before the requirement to have a residence permit is enforceable against you. However, those who arrive in France after the withdrawal date or after 31 December 2020 in the event of a withdrawal agreement will have to sign a republican integration treaty in the same way as third-country nationals.

The French decree No. 2019-265 of 3 April 2019, adopted under Article 18 of the aforementioned regulation, sets out the rules, such as the periods of insurance or employment provided by UK law before Brexit and up to 6 months after the withdrawal date, which are taken into account for the eligibility and amount of social security and unemployment protection benefits. As of 1 October 2021, all British nationals must be in possession of a special residence permit under the withdrawal agreement (if they arrived in France before 31 December 2020), either via a standard residence permit (if they arrived in France on 1 January 2021 or after). The agreement provides for a transitional period until 31 December 2020 during which the UK will continue to apply EU law, including the rules for coordinating the social security system, but will no longer participate in the development of new EU laws. British nationals who have applied for a Brexit residence permit online without a deal and have in the meantime moved to another department must complete a new application online.