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Attention!

Fraudulent emails are currently circulating in the name of OASI.

Updated on 29 Sept 2026

These messages state that your OASI insurance certificate has expired and invite you to renew it online. This is a phishing attempt aimed at obtaining your personal and sensitive data.

Published on 6 March 2025

Joining the voluntary OASI/DI

Swiss, EU and EFTA nationals who transfer their domicile outside the EU or EFTA may, under certain conditions, join the voluntary OASI/DI scheme.

What are the conditions for affiliation?

  • Being a Swiss, EU or EFTA national

  • Residing outside the EU or EFTA

  • Having been insured with the OASI/DI scheme for at least 5 consecutive and uninterrupted years at the time of leaving the compulsory OASI/DI scheme

  • Applying for membership no later than 12 months after leaving the compulsory OASI/DI scheme

Particularities:

Years of residence in Switzerland count as years of insurance for persons exempt from compulsory OASI/DI contributions and for minors.

To enable children to pay contributions when they reach the age of majority, they should join the voluntary AVS/AI scheme when they leave Switzerland.

How do I join?

Application for membership is individual. Each family member must submit an application.

  • Notify the commune of your place of residence that you are leaving in order to obtain a certificate of departure.

  • Register with the Swiss consular representation in your country of residence via the: Online desk for Swiss nationals residing abroad

  • Send us the membership application form by e-mail or by post with a copy of your certificate of departure

OASI/DI membership form

How to give power of attorney to a third party?

You can give power of attorney to a third party to act on your behalf with our office by returning the power of attorney form to us by e-mail or by post.

Power of attorney

For more information