What is Quellensteuer (withholding tax) for foreign residents in Switzerland?

Foreign nationals living in Switzerland without a C permit (permanent residence) who earn employment income generally pay Quellensteuer — tax withheld directly from their salary by the employer. This replaces the standard self-assessment process for most foreign employees.

The rate is set by the canton of residence and varies by income level, family status, and religious denomination (church tax). Your employer calculates and deducts it monthly and remits it to the cantonal authority on your behalf.

If your gross annual income exceeds CHF 120,000, you must additionally file a standard tax return (ordentliche Veranlagung) even with Quellensteuer deducted. You can also voluntarily request a corrective assessment (nachträgliche ordentliche Veranlagung) if you have significant deductions — property costs, Pillar 3a, commuting — that would reduce your liability below the withheld amount.

This is general information only, not professional tax advice. Consult a qualified tax professional for your specific situation.