Can I dispute the fee even after 30 days from signing the contract?

No. The deadline to dispute the initial fee is rigid: 30 days from the signing of the contract. After this period, the fee becomes binding. However, if the lessor increases the rent during the relationship, you can dispute the increase by appealing to the conciliation authority within the time limits prescribed by the Code of Obligations.

Does the security deposit have to be on a specific account?

Yes. The security deposit (maximum 3 months' rent) must be paid into a escrow account in the name of the tenant, not the landlord. The landlord cannot use it as his own availability. At the end of the relationship, the refund must be made within 30 days, after deducting only the documented charges.

Which form should I use for cancellation?

The cancellation must take place exclusively on an official form provided by the cantonal administration. In the Canton of Solothurn, the competent office makes the form available on the website. An informal or unofficial cancellation can be challenged and declared null and void.

How much does it cost to appeal to the conciliation authority?

The procedure before the conciliation authority is free of charge. You don't need to have a lawyer. The conciliation body is designed to ensure economic barrier-free access to leasing rights.

How long does conciliation take?

Times vary, but typically a conciliation procedure lasts from one to three months. If no agreement is reached, the parties can go to court, where the times lengthen considerably (from six months to two years depending on the complexity).

Soleta Rentals: Medium Rentals and Rental Law (cross-border guide)

Di Redazione Frontaliere Ticino · Published on 1 September 2026

Swiss residential building facade with balconies in a modern urban neighborhood.

Security deposit, chargeback, cancellation: the federal rules on renting and leasing in Switzerland and cantonal conciliation procedures.

Context

In brief

Maximum security deposit of 3 months' rent
Rent dispute within 30 days to the conciliation authority
Landlord's notice valid only on official cantonal form
Federal law equal in every Swiss canton

Key facts

What: Federal rules of tenancy law (Code of Obligations art. 253 ff.)
Where: Canton of Solothurn and all of Switzerland
Who: Tenants, landlords, cantonal conciliation authorities
Security deposit: Max 3 months' rent, blocked account
Dispute procedure: Within 30 days to the conciliation authority
Notice: Only on official cantonal form

In the Canton of Solothurn, as in the rest of Switzerland, tenancy law is governed by the same federal rules contained in the Code of Obligations (arts. 253 ff.). There are no cantonal variants for the fundamental principles of tenant protection: the differences concern only the conciliation bodies, local administrative procedures, and the addresses of the notice forms. Consult the cost of living to evaluate the convenience of local rents.

The security deposit may not exceed three months' monthly rent. This amount must be paid into a blocked account in the tenant's name: the landlord cannot use it as his own liquidity. The refund must be made within 30 days from the termination of the relationship, deducting only the actual charges due for damages, extraordinary cleaning, or outstanding rent.

One of the crucial aspects concerns the notice. The landlord cannot send a simple registered letter: the notice must be made exclusively on an official form provided by the cantonal administration (in the case of Solothurn, by the competent cantonal office). An invalid form or an informal notice can be contested by the tenant and declared null and void. This protects those who live in a rental from hasty or formally irregular terminations.

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Operational details

Analysis: how conciliation works in Soleta

Unlike other civil matters, disputes over rent, security deposit and rent cancellation do not end directly in court. Instead, there is a mandatory passage before the cantonal conciliation authority. In the Canton of Solothurn, this authority receives requests from both parties: tenants who dispute the rent, and landlords who demand payment of damages or arrears.

The authority has the task of verifying whether the claims are founded in federal law. If the tenant disputes because the rent is too high, the conciliation body analyzes the local market data. If the landlord asks for the payment of damages, it is verified whether the damage is real and quantifiable. Only if the parties do not reach an agreement in conciliation, the dispute can proceed to the cantonal court.

Practical scenarios: what happens if

Scenario 1: Security deposit not returned The tenant has left the apartment, the landlord does not return the deposit and does not submit a written statement of charges. The tenant may lodge a complaint with the conciliation authority within the terms of the law. The authority orders immediate return, unless the landlord justifies the charges with repair quotes, photos of the damage, or professional cleaning receipts.

Scenario 2: Rent disputed before employment A tenant signs the contract but within 30

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Key points

How to act: step-by-step procedure

Phase 1: Gather documentation If you intend to contest a rent, deposit or termination, gather all the documentation: the signed lease contract, the last three rent receipts, payment receipts, photos of the property's condition (if contesting damages), and comparable rental ads in the area. If available, download the official contestation form from the Solothurn cantonal administration website.

Phase 2: Check deadlines The contestation of the initial rent must be submitted within 30 days of signing the contract. If more time has passed, the deadline is lost. For the recovery of the unreturned deposit, there is no short deadline: you can act within the ordinary prescription periods (five years). To contest an irregular termination, you have 30 days from receiving the defective form.

Phase 3: File a complaint with the conciliation authority Send your written complaint to the cantonal conciliation office. Include the contract, supporting documentation, and a brief description of the reason for the contestation. It is not mandatory to attach judgments or legal opinions: the authority will evaluate independently.

Phase 4: Participate in the procedure The authority will set a hearing (often by videoconference) where both parties present their position. If you do not attend, the decision may be made based solely on the documents submitted. A tip: present yourself with concrete evidence (comparable market prices, photos, receipts) rather than general considerations.

Phase 5: Appeal to the court (only if necessary) If the conciliation does not reach an agreement and one of the parties does not accept the result, the dispute can be brought to the cantonal civil court. At this point, it is advisable to consult a lawyer.

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Frequently Asked Questions

Can I dispute the fee even after 30 days from signing the contract?: No. The deadline to dispute the initial fee is rigid: 30 days from the signing of the contract. After this period, the fee becomes binding. However, if the lessor increases the rent during the relationship, you can dispute the increase by appealing to the conciliation authority within the time limits prescribed by the Code of Obligations.
Does the security deposit have to be on a specific account?: Yes. The security deposit (maximum 3 months' rent) must be paid into a escrow account in the name of the tenant, not the landlord. The landlord cannot use it as his own availability. At the end of the relationship, the refund must be made within 30 days, after deducting only the documented charges.
Which form should I use for cancellation?: The cancellation must take place exclusively on an official form provided by the cantonal administration. In the Canton of Solothurn, the competent office makes the form available on the website. An informal or unofficial cancellation can be challenged and declared null and void.
How much does it cost to appeal to the conciliation authority?: The procedure before the conciliation authority is free of charge. You don't need to have a lawyer. The conciliation body is designed to ensure economic barrier-free access to leasing rights.
How long does conciliation take?: Times vary, but typically a conciliation procedure lasts from one to three months. If no agreement is reached, the parties can go to court, where the times lengthen considerably (from six months to two years depending on the complexity).