« Self-posting » by a self-employed worker
Brexit with the withdrawal agreement that was signed on January 24, 2020 (effective from January 31, 2020) and during the transition period which runs through December 31, 2020
The « self-posted » self-employed worker will come under their home country’s Social Security legislation.
A self-employed worker habitually working in France who temporarily « self-posts » to the United Kingdom will remain a member of the French Social Security system and continue to pay contributions and charges in France (CSG and CRDS if the worker is a tax resident of France).
A self-employed worker habitually working in the United Kingdom who temporarily « self-posts » to France will remain a member of the UK Social Security system and will not owe any contributions or charges in France.
As regards France’s relationship with the United Kingdom from January 1st, 2021, we now know more about the measures that will apply under the withdrawal agreement to Frenchinsured individuals who established ties to the United Kingdom prior to December 31, 2020 : on cutoff dates for forms issued as certificates of applicable legislation for posted or multi-State workers.