Swiss tax ruling (ruling fiscal, Steuerruling) before you move

A tax ruling is a written answer from the cantonal tax authority, given in advance, on how it will tax your concrete situation. For families moving under lump-sum taxation, it is how the tax base is agreed with the canton before or on arrival, so that you know where you stand before you sell a home, sign a lease or move the children's schools.

Key facts (as of September 2026)

• A ruling is a written, advance assessment of a concrete set of facts that is about to happen; hypothetical questions are generally not answered (Zurich tax manual).
• It binds the authority under good faith if five conditions are met, including that the law has not changed.
• The lump-sum amount is agreed with the canton before or on arrival.
• Geneva asks you to propose an amount, with a lifestyle form and your lease or property valuation.
• Vaud lists the signed lump-sum agreement as a required document for the non-EU fiscal-interest permit.
• Zurich's tax manual says rulings are usually free; fees are possible for extensive requests.
• No official processing time is published.

What is a tax ruling?

In Switzerland a tax ruling (in German Steuerruling or Vorbescheid, in French ruling fiscal) is a written statement by the competent tax authority on how it will treat a specific set of facts. It is not a general opinion. The Zurich tax manual, which sets out the principles clearly, describes it as an advance assessment of a concrete situation that is actually going to happen. Questions about hypothetical plans are not answered.

For a relocation, the ruling usually covers the lump-sum base: the amount the canton accepts as your worldwide living costs, having checked the rent test and the control calculation. Our guide on how the lump-sum tax is calculated explains those tests.

Why agree it before you move?

Lump-sum taxation is decided canton by canton, and its outcome depends on details that are specific to you: your spending, your home, where your income arises and whether you claim treaty relief. Moving first and asking later means committing to a house, schools and a new life without knowing the tax figure that underpins the whole plan.

A ruling turns an estimate into something you can rely on. It also gives the canton a complete picture early, which helps when the tax and permit files need to line up. And it is one of the few points where you can still compare cantons on firm ground rather than on published minimums alone.

When is a ruling binding?

Swiss rulings rest on the constitutional principle of good faith. Following the Zurich tax manual, the authority is bound if:

1. the answer was given without reservation to a specific person on concrete facts;
2. the authority that gave it was competent to do so;
3. you could not see that the answer was wrong;
4. you acted on it in ways you cannot undo without harm, such as moving your home;
5. the law has not changed since.

Two consequences matter in practice. First, the ruling only protects you for the facts you described: if your situation differs, or changes later, the protection may fall away. Second, a change in the law can end its binding effect, which is one reason to keep an eye on legislative developments.

What goes into a lump-sum ruling request?

Each canton has its own process, but the published examples show the kind of file that is expected.

Geneva asks for a written request to the cantonal tax administration, made together with the migration procedure. It includes:

• a letter explaining your situation and confirming that you will not work in Switzerland;
• a proposed lump-sum amount;
• a copy of the lease or a property valuation;
• a lifestyle form ("train de vie"), available in French and English.

Uri asks for an application setting out your personal situation and your worldwide income and wealth, a detailed checklist and a living-cost budget. Its checklist also asks whether you claim treaty relief from the United States, Germany, Belgium, Norway, Italy, Canada or Austria, because that triggers the modified lump sum.

Across cantons, a good request is concrete, consistent and documented. It explains the family, the home, the expected spending and the sources of income, and it shows how the proposed base meets every floor.

How the ruling links to your residence permit

The tax file and the permit file are handled by different authorities, but for many families they depend on each other.

• EU and EFTA nationals who do not work usually obtain a permit on the basis of sufficient means and health insurance. The ruling then settles the tax side.
• Non-EU nationals applying for a permit on fiscal grounds need the canton to confirm a significant fiscal interest, and the State Secretariat for Migration (SEM) must approve the permit. The canton first tells you it intends to approve, then sends the case to SEM, which may refuse, limit or attach conditions.

Cantons make the link explicit in different ways. Vaud lists a copy of the lump-sum agreement with its tax administration among the documents for the non-EU permit, alongside a formal commitment not to work. Geneva publishes its fiscal-interest threshold for third-country nationals as an expenditure base of CHF 750,000. Zurich, which no longer offers the lump sum, requires a tax-authority confirmation that you will pay around CHF 1 million a year in tax before it considers a fiscal-interest permit.

For the permit routes themselves, see our guide to residence for financially independent non-EU nationals.

After the ruling: keeping it valid

A ruling is the start of the relationship with the canton, not the end.

• Every year you file a specific lump-sum return. Uri, for example, asks you to document your worldwide living costs annually.
• Every year the tax authority checks that the conditions are still met, as the ESTV's Circular 44 requires.
• Changes must be reported without being asked: a job in Switzerland, a spouse starting work, a Swiss passport, a larger home or new Swiss investments can all alter the base or end the regime.

If the facts on which the ruling was based change, expect the canton to revisit the figure.

Common questions we see

Can I negotiate the amount? You propose an amount and support it; the canton decides. Published cantonal minimums are verified figures, but how a canton assesses a specific file is its own practice, and it varies.

Can I compare cantons with rulings? You can discuss your situation with more than one canton while you decide, but a ruling is given on concrete facts, including where you will actually live. Choosing the canton comes first; our lump-sum taxation by canton table is a starting point.

Does a ruling help others in the same situation? No. It is addressed to you, on your facts, and protects only you.

How we help

We prepare the ruling request with you: the living-cost budget, the rent and control-calculation checks, the treaty questions and the supporting documents. We then present it to the canton and coordinate it with the permit application where needed. Our tax ruling service describes how we work, or you can contact us to talk it through.

This guide is general information as of 30 September 2026; your own situation needs a ruling or personal advice before you rely on it.