Permit applications in Basel

Renewals follow a fixed routine. A notice of expiry (Verfallsanzeige) is mailed to the home address six to eight weeks before a B or C permit ends, and the signed form goes back in writing to the Migrationsamt with a passport or ID copy and, for employed people, the employer's confirmation (Kanton Basel-Stadt, checked 21 Oct 2026). L-permit extensions or conversions are due three weeks before expiry, by letter or to migrationsamtwebanfragen@bs.ch (Kanton Basel-Stadt, checked 21 Oct 2026).

When biometric data are missing or expired the office posts an appointment letter. The appointment can be moved with the letter's QR code or on the federal reservation site, a missed one is rebooked on +41 61 267 60 80, and not appearing without notice costs CHF 50 (Kanton Basel-Stadt, checked 21 Oct 2026). The canton lists CHF 75 for extending an L, B or G permit of a third-country national, CHF 65 for a C permit, CHF 20 for biometrics and CHF 22 for producing the card; the new card arrives by registered post (Kanton Basel-Stadt, checked 21 Oct 2026).

A B permit lapses after six months abroad unless a suspension request is filed first, which can hold it for up to four years (Kanton Basel-Stadt, checked 21 Oct 2026). The migration counters move to Schwarzwaldallee on 2 November 2026 (Einwohneramt BS, checked 21 Oct 2026).

Newcomers register with the Einwohneramt of Bevölkerungsdienste und Migration at Spiegelgasse 6; from 2 November 2026 its counters work from a temporary building on Schwarzwaldallee, opposite Badischer Bahnhof. The deadline is 14 days (2026) (Einwohneramt BS, checked 21 Oct 2026): the date of the online booking counts, not the date of the appointment. Registration costs CHF 25 per person (Einwohneramt BS, checked 21 Oct 2026). The general steps are in registering at your commune.