Swiss withholding tax: a simple calculation guide for 2026

Swiss withholding tax is deducted by the employer from affected employees' remuneration and paid to the tax authority. One percentage chosen at the start of the year is not enough: the correct canton, tariff, personal facts and period all matter.

References and examples: 2026.

Collect the right information

Establish tax liability from residence, permit status and, where relevant, cross-border circumstances. Record marital status, relevant children, the spouse's employment, other jobs and effective dates. The competent canton is not always the canton of the worksite or company headquarters. FTA Circular 45 explains the framework and special cases.

Keep evidence supporting the tariff. Unknown information should not default to “no”.

Monthly and annual models

Fribourg, Geneva, Ticino, Vaud and Valais use the annual model. Other cantons, including Neuchâtel, use the monthly model. See FTA Annex III. Both can involve monthly deductions: “annual” does not mean waiting until December to withhold tax.

Separate taxable pay from rate-setting income

The taxable base is the amount to which tax applies. Rate-setting income determines the percentage. They may differ, especially with multiple jobs or an incomplete period. Do not simply multiply net salary by a percentage.

Teaching example only: a CHF 5,000 base at a properly determined 6% rate gives CHF 300 tax. This rate is fictional, not an official tariff. A 13th salary, bonus or additional job requires checking the applicable method again.

Before approving the payslip

1. Match the official tariff to the year, canton and personal circumstances.
2. Review the taxable base, rate-setting income and cumulative figures.
3. Check the deduction and its effect on net pay.
4. Prepare the return and payment within the canton's deadlines. Employer obligations: Vaud example.

How BMT makes the work easier

BMT uses imported official tax tables and links dated circumstances to periods and cumulative amounts. Missing required information is flagged before approval. A missing tax rate is not a known rate of 0%. You can review the taxable base, rate-determining income and deduction together.

Read more: accounting entries · corrections.

FAQ

Is a 0% rate always an error?

No. A verified official rate may be zero. A missing verified rate must not be treated as evidence that no tax is due.

Do two employees with identical gross pay owe the same tax?

Not necessarily. Canton, personal circumstances, other employment and period can change the rate.

Does a collective agreement replace the tax tariff?

No. The agreement helps determine remuneration and working conditions. Tax follows the applicable fiscal rules.