The United Kingdom left the EU on 31 January 2020. The withdrawal agreement provides for a transitional period until 31.12.2020 during which the UK continues to apply EU law on the coordination of social security systems in relation to EU states and Switzerland. During this transitional period, Regulations (EC) No 883/2004 and (EC) No 987/2009 on the coordination of social security systems remain applicable without any change in the relations between Switzerland and the United Kingdom, and the United Kingdom is assimilated to an EU State.
The relations between Switzerland and the United Kingdom are to be governed by a new coordination regime; these rules are currently being defined. Information will be provided in due time.
The old bilateral agreement between Switzerland and the United Kingdom of 1968 will be applied for a short period of time on 1 January 2021, until the future coordination regime can come into force. This agreement allows in particular social security postings for salaried workers whose assignments begin after 31.12.2020 (see brochure Social Security for Posted Workers - Contracting States - outside EU/EFTA).
Protection of acquired rights
At the end of the transitional period on 31.12.2020, the Agreement on the Free Movement of Persons between Switzerland and the EU (FMOPA) does no longer apply to relations between Switzerland and the United Kingdom.
In order to regulate the exit of the United Kingdom from the FMOPA and to guarantee the rights that insured persons have acquired under the FMOPA, an agreement on citizens' rights has been concluded between Switzerland and the United Kingdom. This agreement is applicable from 01.01.2021. It maintains the rights arising from Annex II (social security coordination) of the FMOPA for persons who were subject to the FMOPA before 01.01.2021. This agreement has been supplemented by a decision of the Swiss-EU Joint Committee of the FMOPA, which extends the protection of rights to EU nationals and cross-border situations involving the EU: