Social convergence in Mayotte: extension of the Social Security Code and alignment of benefits

Ordinance No. 2026-647 of 22 July 2026 extends the Social Security Code to Mayotte, mainly from 1 January 2028, and speeds up the convergence of benefits and levies with the rest of France. It provides in particular: mainland income ceilings for the basic allowance of the early childhood benefit and the childcare supplement (1 January 2027), then for the family supplement (1 July 2027); a basic allowance rate equal to 60% of the mainland rate on 1 April 2027; family supplement rates aligned with the mainland by 1 April 2031 at the latest; wider access to the solidarity complementary health cover; application of the standard CSG and CRDS in Mayotte from 2028 with a progressive convergence factor (for the CRDS, 20% of the standard rate in 2028 rising to 100% in 2036); a 2027-2036 path for revaluing the amounts in Article 23 of the 2026 Social Security Financing Act on contributions in Mayotte.