Conversion of F or L to B permit
L short-term residence permit Conversion to a B residence permit
The L short-term residence permit is a residence permit for foreign nationals who are staying in the Canton of Basel-Stadt for a limited period of time, usually less than one year, for a specific purpose of residence with or without gainful employment.
The L permit for gainful employment is converted into a B permit if proof of permanent employment or employment limited to at least 365 days is provided. The agreed minimum workload and the duration of employment must have been bindingly guaranteed in the employment contract.
Applications for an extension of the L permit for gainful employment or its conversion into a B permit must be submitted in writing to the Cantonal Migration Office at least three weeks before the permit expires.
Documents to be submitted: Written application (letter) for extension of the L permit or conversion to a B permit (no special form is required). Copy of the employment contract or declaration of employment signed by the employer and employee. Copy of valid passport or valid identity card.
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