Converting an F or L permit into a B permit
As a general rule, it is possible to convert an F or L permit into a B permit, but specific conditions and procedures apply. As a rule, an L permit can be converted into a B permit if proof of permanent employment or employment for a fixed term of at least 365 days can be provided.

Conversion of F permit to B permit – Application will be reviewed according to the following criteria:

– An uninterrupted stay in Switzerland of at least five years;
– Proven identity
– Compliance with the following integration criteria:
– Observance of public safety and order (no debt collection, no certificates of loss, no  violations of legal provisions)
– Respect for the values of the Federal Constitution
– Language skills (oral skills at least at reference level A1)
– Participation in economic life or acquisition of education (for at least one year)
– Family situation, in particular the date of school enrolment and the duration of school attendance of the children
– State of health
– Possibilities for reintegration in the country of origin
– There is no entitlement to the granting of a residence permit; any granting of a permit is at the discretion of the authorities.
– Each adult family member must submit a personal application.