Withholding Tax in Switzerland: Quellensteuer Explained

Who Is Subject to Withholding Tax?

All foreign employees in Switzerland without a Permit C are subject to withholding tax (Quellensteuer). This covers Permit B, L, and G (cross-border) holders, as well as asylum seekers with work authorisation. Swiss citizens and Permit C holders are assessed through the standard tax declaration process.

How Are Rates Determined?

Each canton sets its own withholding tax tariffs. Rates depend on: Canton of employment, gross salary, marital status and number of children, religious denomination, employment percentage. The employer applies the cantonal tariff and deducts the amount monthly. Federal, cantonal, and municipal taxes are consolidated into a single combined tariff.

Deductions and Adjustments

Since 1 January 2021, withholding-taxed employees with Swiss domicile can apply for a subsequent ordinary assessment (NOV – nachträgliche ordentliche Veranlagung) to claim deductions not reflected in automatic withholding (professional expenses, health insurance premiums, mortgage interest, childcare costs). Employees earning over CHF 120,000/year are automatically assessed ordinarily.

Correcting Withholding Tax Errors

If the amount deducted was too high or too low, a correction can be requested by end of March of the following year. Submit the correction request to the tax authority of your canton of domicile. Employers can also issue corrections if they detect a tariff application error.

Context on the Swiss job market helps frame any career decision in Switzerland. Our gross-to-net salary guide shows what Swiss gross salaries look like after AVS, LPP and tax deductions. The salary negotiation guide covers how to use market data in offer discussions and which arguments work with Swiss recruiters. Our guide to working in Switzerland as a foreigner covers entry conditions, permit categories and practical relocation steps. The work permit guide explains B, C, G and L permit categories and processing timelines. For cross-sector salary benchmarks, the Switzerland salary guide covers all major roles and cities.

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Frequently Asked Questions

Who must pay withholding tax in Switzerland?

All foreign employees without a Permit C (permanent residence). This includes Permit B, L, and G holders, and asylum seekers with work authorisation.

Can I claim deductions on my withholding tax?

Yes, since 2021, withholding-taxed employees with Swiss domicile can apply for a subsequent ordinary assessment (NOV) to claim deductions. The deadline is end of March of the following year.

What happens when I receive a Permit C?

Upon receiving Permit C, withholding tax ceases; you transition to ordinary tax assessment like Swiss citizens, starting the following year.

How much do withholding tax rates vary between cantons?

Significantly. Low-tax cantons (Zug, Nidwalden, Schwyz) typically apply rates of 10–14% on a gross salary of CHF 8,000/month for a single person. High-tax cantons (Geneva, Vaud, Berne) apply rates of 18–24% for the same profile. The difference in net salary between a Zug employee and a Geneva employee at the same gross salary can reach CHF 6,000–8,000 per year. Cantonal tariff tables are published online and updated annually; rates vary by marital status, denomination, and family situation.

What is the 13th month salary in Switzerland?

The 13th month salary in Switzerland refers to an additional monthly salary paid once a year, typically in December. It is included in annual salary benchmarks as standard: when a Swiss employer quotes CHF 120,000 per year, this normally means 13 monthly payments of approximately CHF 9,231 each, not 12 payments of CHF 10,000. The 13th month is governed by the employment contract or collective agreement (GAV), not by statute. It is subject to social contributions (AHV/ALV) and income tax. Always clarify with a prospective employer whether a quoted annual figure includes or excludes the 13th month.