
Typically a completed national visa application form, a valid travel document, proof of the purpose of your stay (such as a work contract, university admission or family link) and evidence of sufficient financial means.
Because the D visa is purpose-driven, the core of your file is the evidence that supports that purpose: an employment contract or assignment letter for work, a confirmation of admission for studies, or proof of the family relationship for reunification. You also submit a passport valid for the planned stay and recent biometric photos.
Applications are lodged in writing using the national visa form, either by post or directly at the competent Swiss representation abroad, which forwards the file to the cantonal migration office for examination. Exact supporting documents can vary by canton and purpose, so confirm the checklist with the responsible authority before applying.
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