Withholding tax at source in Switzerland is the way most newly arrived foreigners pay income tax. Instead of filling in a return and receiving a bill, the tax is taken from your pay before it reaches your bank account. For a family planning the move from London, Chicago or Mumbai, it is one of the first surprises on the first payslip, and one of the easiest to prepare for.
This page explains the idea in plain words: who is taxed at source, what happens each month, where the ordinary tax return comes back in, and what you can prepare from home.
The idea in one minute
In Switzerland, income tax is collected by the canton and the municipality, with a federal share on top. For some people the amount is worked out once a year from a tax return. For others it is deducted by the employer every month. That second method is tax at source.
Foreigners who do not hold a settlement permit (permit C) are taxed at source. The employer deducts the tax, then pays it to the canton each month. The legal framework includes the federal tax laws and an ordinance on taxation at source. The details of the rates are cantonal, so two colleagues in different cantons can see different deductions on the same salary. Official guidance is published by the Federal Tax Administration and by each canton.
Who is taxed at source
The tax follows the permit, not the passport. Here is the usual picture for someone arriving from abroad:
- A permit B (residence) or permit L (short-term) holder who works for a Swiss employer is taxed at source.
- A permit C holder (settlement) is taxed through an ordinary return instead.
- Whether you come through the EU/EFTA route or the third-country route, the admission rules differ, but the tax method is decided by the permit you hold. The State Secretariat for Migration describes the two admission regimes.
Not sure which permit applies to your situation? The permit finder walks you through four questions, and a specialist can review your case through the request at the bottom of the page.
What happens each month
Your employer does the work, which is why many newcomers find the system easy. You do not receive a separate tax bill for the salary. The deduction appears as a line on your payslip, next to the social security contributions covered in our guide to AVS and the three pillars.
What decides the amount
The deduction is not a flat share of your salary. It depends on a scale that takes account of:
- The canton and municipality where you live.
- Whether you are single or married, and whether your spouse also earns an income.
- The number of children who depend on you.
- Other personal details, such as religious affiliation in some cantons.
This is why an example family matters. Example: a couple from Toronto with two school-age children and one salary will see a lower deduction rate than a single person on the same salary in the same canton. Another example: two partners who both work may see a different calculation from a household with one earner. Only the tax office or the employer can give the exact figure for a real situation.
The salary threshold and the ordinary return
Tax at source is not always the end of the story. According to the federal rules summarized by the Federal Tax Administration, the position depends on income:
- With a B or L permit and income below CHF 120,000 (FTA), tax at source is in principle final. An ordinary assessment can still be requested later.
- From CHF 120,000 (FTA) of income, a later ordinary assessment is compulsory.
In both cases, the tax already paid at source is taken into account. If you want a step-by-step picture of the return itself, read your first Swiss tax return. For a sense of typical earnings and what is left after deductions, see what people earn in Switzerland.
What to prepare from abroad
Tax at source starts from the day you start working, so a few things are worth lining up before you leave:
- Ask your future employer which municipality's rules apply once you have an address.
- Keep your permit decision and your employment contract in one folder.
- Collect your family status documents, such as marriage and birth certificates, since marital status and children affect the scale.
- Note your previous country's tax rules for your final year there; a tax adviser in that country can explain what still applies.
- Add the registration step to your relocation calendar.
The first weeks on the ground
After arrival, registration with the municipality comes first. The usual rule is to register within 14 days, with an ID, your permit or work authorization and proof of health insurance (the exact steps vary by municipality and canton, see ch.ch). Basic health insurance is compulsory within three months of taking up residence, with cover backdated to the day of arrival if the deadline is met, according to the Federal Office of Public Health.
Once registered, the employer has what it needs to apply the right scale. If the details on your payslip look wrong, a quick message to the payroll team is the normal first step; the cantonal tax office can also explain how the scale was applied.
Where tax at source meets other topics
- Budget planning: see the cost of living in Switzerland, and comparisons for readers from the UK or the US.
- Self-employment follows different rules; read starting out on your own.
- Special arrangements for wealthy newcomers are covered under lump-sum taxation.
- Buying a home raises its own tax questions: see buying a home as a foreigner.
If you would like a specialist to look at your situation, the request at the bottom of the page puts you in touch with a relocation company that fits your needs.
Frequently asked questions
Who pays tax at source in Switzerland?
Foreigners without a settlement permit (permit C) who earn income in Switzerland are taxed at source. That includes most people arriving on a permit B or L.
Is tax at source the same as a tax bill?
No. It is a deduction made by the employer, so there is no separate bill for the salary. The employer pays it to the canton every month.
Who calculates the deduction?
The employer applies a scale published by the canton. The tax office is the place to ask if the scale looks wrong.
Do EU and US citizens pay differently?
The method follows the permit, not the passport. The admission rules differ between the EU/EFTA route and third-country nationals, but the permit decides how tax is collected.
Does permit C change anything?
Yes. Permit C holders are not taxed at source. They file an ordinary tax return.
What is the CHF 120,000 threshold?
It is the income level at which, for B and L permit holders, a later ordinary assessment becomes compulsory, as described by the Federal Tax Administration (FTA). Below it, tax at source is in principle final.
Can I still ask for a return below the threshold?
Yes. An ordinary assessment can be requested on application. The canton sets how and when.
Is the rate the same in every canton?
No. Cantons and municipalities set their own scales, so the deduction differs from place to place.
Does marriage change the deduction?
Yes. Marital status is one of the inputs to the scale, as is whether a spouse also earns income.
Do children lower the deduction?
Dependent children are taken into account in the scale. The exact effect depends on the canton.
Will I see the deduction on my payslip?
Yes. It appears as a separate line, next to social security items.
What if I change employer?
The new employer applies the scale from the start of the new job. It helps to keep the old payslips and the annual statement for your records.
What if my permit type changes?
A change of permit can change the tax method. Moving to permit C ends tax at source and brings an ordinary return.
What happens to my first partial year?
Your deductions run from the first payday. Whether a return applies later depends on income and permit, as set out above.
Do I pay anything on top of tax at source?
Social security contributions are deducted separately. Read AVS and the three pillars for how they work.
Does tax at source cover my spouse?
Only if your spouse is also employed in Switzerland and taxed on that income. A spouse without Swiss income is treated according to the household details given to the employer.
Is my foreign income affected?
Questions about income from your home country depend on the rules of both countries. A tax adviser or a specialist reached through the request can look at it.
How does this relate to health insurance?
They are separate systems. Basic health insurance is compulsory within three months of taking up residence, and the premium is paid on its own, not through the tax deduction.
When does the registration with the municipality happen?
The usual deadline is 14 days after arrival. Practice varies by municipality, so check the local page on ch.ch.
Can the employer get it wrong?
Mistakes happen, for example a wrong marital status. Payroll can correct them, and the cantonal tax office handles disputes.
Do students and short-term workers pay too?
Short-term permit L holders working for a Swiss employer are taxed at source in the same way.
Where can I read more?
Start with the Federal Tax Administration and your canton's tax office, listed in the sources below. For the next step in your move, the sample timeline shows how tax fits into the first months.