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Fraudulent emails

Updated on 31 Mar 2026

Emails are currently circulating which claim to be from the Federal Social Insurance Office, in which the sender asks the recipient to provide their OASI (Swiss social security) number so that the FSIO can proceed with a review of their case file.

Third party communicationPublished on 29 July 2025

Entry into force of the additional agreement to the double taxation agreement between Switzerland and France

Berne, 29.07.2025 — The additional agreement to the double taxation agreement between Switzerland and France entered into force on 24 July 2025. Its provisions, which permanently regulate the taxation of income from home office work, will apply from 1 January 2026.