The first weeks in Switzerland follow a sequence anchored on the commune of residence. Most non-EU arrivals enter with a visa already endorsed by SEM and the canton on the basis of the employer's or institution's prior application — the local steps confirm and operationalise that.
Anmeldung at the Einwohneramt / Bureau du contrôle des habitants / Controllo abitanti
Within 14 days of arrival you must register at the residents' office of your commune of residence. The office has different names by language region but the same role: recording you in the communal register and triggering the issuance of your residence permit and AHV number. Bring passport, entry visa, employment contract or admission letter, rental contract or landlord confirmation, and (for spouses and children) civil-status documents. The clerk's working language is the language of the commune — French in Geneva, German in Zürich, Italian in Lugano — and forms are usually only available in that language; translation help is rarely standard.
AHV-Nummer and Aufenthaltsbewilligung
Registration at the commune triggers two parallel issuances:
- AHV-Nummer (Swiss social-security number, 13 digits, format 756.xxxx.xxxx.xx) — issued by the Ausgleichskasse, used for old-age and disability insurance, employment, tax. You receive an AHV card by post within a few weeks.
- Aufenthaltsbewilligung — the physical residence permit (B-permit for one-year renewable residence, L-permit for short-term, C-permit only after several years). Issued by the cantonal Migrationsamt on the basis of the SEM/cantonal pre-approval; typically arrives by post within 4–8 weeks. Until it arrives, the entry visa plus the registration confirmation from the commune serve as proof of legal residence.
Permit category determines what you may and may not do — a B-permit tied to a specific employer is the typical first-year situation for non-EU arrivals, with restrictions on changing employer or canton without approval.
KVG (mandatory health insurance) — within 3 months
Within 3 months of registration you must enrol with a Swiss health insurer (Krankenkasse) under the Krankenversicherungsgesetz (KVG) — coverage is then back-dated to the date of arrival, so there is no uninsured gap. Choose any of the 26+ insurers; the basic package is identical by law, only premium and service differ. Comparison portals: comparis.ch, priminfo.admin.ch (the official federal comparator). Each adult and each child contracts separately. If you do not enrol on time, the canton will assign you to an insurer at the standard rate plus a surcharge.
For initial weeks before KVG starts, travel health insurance from your country of origin is the practical bridge.