Can my landlord raise the rent in Switzerland?
Yes — but only via a strict procedure. The landlord may raise the rent only by following the procedure under the Code of Obligations and the VMWG. The increase must be notified on the official cantonal form — an increase without it is void — and must be reasoned. It must reach you at least 10 days before the start of the notice period and takes effect at the next termination date. Permitted grounds are a rise in the reference interest rate (currently 1.25%), inflation, general cost increases and value-adding improvements. You can challenge the increase within 30 days at the conciliation authority. In short: yes, but only with the form, reasons and date — challengeable within 30 days.
📋 The rules
- Only with the official form (otherwise void)
- With reasons, to the next termination date
- Reaches you at least 10 days before the notice period
- Grounds: reference rate, inflation, improvements
- Challenge within 30 days at the conciliation authority
🔓 Exceptions
- Reference interest rate currently 1.25% (Federal Housing Office)
- Permitted yield = reference rate + 2% (while reference ≤ 2%)
- Value-adding improvements passable proportionately
⚠️ Penalties & fines
A rent increase without the official form or without reasons is void and has no effect. An abusive increase (e.g. with no permitted ground) can be challenged within 30 days at the conciliation authority; if you miss the deadline, the increase stands. Beware a myth: "the landlord can raise the rent any time, informally" is false — they need the official form, reasons and the right date. Tip: check the reasons and deadline carefully, compare with the reference interest rate, and challenge a questionable increase in good time within 30 days.
📎 Official sources
❓ Frequently asked
Can the landlord raise the rent?
Yes, but only via a strict procedure. The increase must be notified on the official cantonal form and reasoned, and takes effect at the next termination date. It must reach you at least ten days before the start of the notice period, otherwise it isn't valid and you needn't pay it.
What grounds are permitted?
Permitted grounds are a rise in the reference interest rate, inflation, general cost increases and value-adding improvements to the rented property. The landlord must state the ground on the form. An increase with no permitted or no stated ground can be challenged at the conciliation authority.
What is the reference interest rate?
The reference interest rate is a rate set by the federal government to which rents are linked. It's currently 1.25 percent. If it falls, you can demand a rent reduction; if it rises, the landlord can claim an increase. It's published by the Federal Housing Office for the whole country.
How do I challenge an increase?
You can challenge the rent increase within thirty days of receipt at the conciliation authority of your canton. It tries to reach an agreement. If you miss the thirty-day deadline, the increase stands. So be sure to keep to the deadline and check the stated reasons carefully.
What if the form is missing?
A rent increase without the official cantonal form or without reasons is void and need not be paid. The form and the reasons are mandatory formal requirements. If you receive an increase without the form, it's ineffective, and you can continue to pay the old rent as before.
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