I will be posted to an EU/EFTA state. My family members are coming with me. Can they retain their OASI/IV cover in Switzerland?

Non-working family members (spouse or registered partner and/or children) who accompany you to the country of temporary employment in the EU will not be not insured under the OASI/IV scheme. However, spouses or registered partners may join the OASI/IV scheme voluntarily.

Non-working family members who accompany you to the EFTA state where you are posted retain their Swiss OASI/IV cover.