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Alert

Fraudulent emails

Updated on 17 Apr 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.

Contact & location

Have you not found the answer to your question in our information section? Do you have another query for the BSV? Or would you like to comment on our information section? Here you can find out how to contact us via the internet. You will also find information about our location.

Insured persons with questions about Swiss Old Age and Survivors’ Insurance (OASI/AHV), invalidity insurance (IV), income compensation allowances (EO) and supplementary benefits (EL) should contact the compensation funds and IV Offices:

Contacts for questions about the Old Age Insurance, the Invalidity Insurance, Supplementray Benefits, Income Compensations and Family Allowances

Leaflets provided by the OASI/IV Informations centres

The Federal Social Insurance Office (FSIO) has compiled the most frequently asked questions from individual social insurance schemes in a list of FAQs on the following page:

Frequently asked questions in German, French or Italian.

Did you not find an answer to your question in the FAQs? Do you have another matter for the FSIO? Or would you like to comment on the information we provide? If so, please use the form below to do so.

Address

Federal Social Insurance Office
Effingerstrasse 20
3003 Berne