Rental Deposit in Swiss Tenancy Agreements: Most Common Pitfalls with Escrow, Amount and Repayment

Imagine this: You've secured the apartment and pay a high deposit – often several thousand francs. At the end of your tenancy, you want your money back. Yet many tenants either don't receive the full amount or wait for months.

According to the Tenants' Association and the 2026 Tenancy Barometer, deposit repayment is one of the most frequent points of contention. Many contracts contain invalid or unclear clauses.

Good news: You don't need a lawyer to spot the most important pitfalls when reading your contract. On welfarecalc.ch you can view all 30 risk points regarding deposits completely free – without uploading your contract. Here we explain the most common pitfalls as simply as if your 5-year-old self were listening.

Let's go!

1. Excessively high deposit – more than 3 months' rent

📄 Original clause in contract (common):
"The deposit amounts to 4 months' rent."

⚠️ Why is this dangerous? According to Art. 257e of the Swiss Code of Obligations (OR), the deposit for residential premises may be **a maximum of 3 months' rent** (gross rent including advance utility payments). Anything beyond that is invalid.

🧒 Explanation in plain language: The landlord is not allowed to demand more than three months' rent as "security". It's like a game: the rule says three marbles maximum – four are not allowed.

✅ What you should do: Pay only 3 months' rent at most. Refuse or challenge any higher demand.

2. Deposit not placed in escrow account or paid into landlord's account

📄 Original clause:
"The deposit shall be paid in cash to the landlord or transferred to his private account."

⚠️ Why is this dangerous? The money **must be deposited immediately into an escrow account at a bank in the tenant's name**. Cash payment or using the landlord's private account is illegal – your money would be unprotected.

🧒 Explanation in plain language: You give your big brother money to keep safe. He is not allowed to put it in his own pocket; he must put it in a secure box with your name on it.

✅ Correct way: Always insist on an escrow account in the tenant's name. Get written confirmation of the account opening.

3. No interest paid on the deposit

📄 Original clause:
"The deposit shall not bear interest."

⚠️ Why is this dangerous? The deposit must earn interest. The interest belongs to the tenant. Failure to pay interest may lead to a claim for back payment.

🧒 Explanation in plain language: Your money shouldn't just sit idle – it's allowed to grow a little, like a piggy bank.

✅ What you should do: Insist on interest being paid and claim the interest when you move out.

4. Unfair repayment conditions

📄 Original clause:
"The deposit will only be refunded if the apartment is in absolutely like-new condition."

⚠️ Why is this dangerous? Normal wear and tear (light signs of use, age-related deterioration) may not be deducted. The landlord must prove actual damage.

🧒 Explanation in plain language: If you tidy up your room properly, you get your marbles back. Only if there are real holes or broken things can something be deducted.

✅ Correct: Deposit refund after proper handover and final statement. In case of dispute: conciliation authority or request payment directly from the bank after 1 year.

5. Deduction for "cosmetic repairs" or professional cleaning without proof

📄 Original clause:
"Upon moving out, the deposit will be withheld for painting work and professional cleaning."

⚠️ Why is this dangerous? Such flat-rate deductions are generally not permissible. Only proven damages beyond normal wear and tear are allowed.

🧒 Explanation in plain language: The landlord cannot simply say "we're painting anyway" and keep your money. Normal living traces are already covered by the rent.

6. Offsetting with ancillary costs without a detailed statement

📄 Original clause:
"Outstanding ancillary costs may be offset against the deposit without further accounting."

⚠️ Why is this dangerous? Ancillary costs must be transparently accounted for. Flat-rate offsetting without supporting documents is not permitted.

🧒 Explanation in plain language: You can't simply be penalized without knowing exactly what the money is being used for.

7. No provision for joint release of the escrow account

📄 Original clause:
"Release of the deposit account requires the landlord's written consent."

⚠️ Why is this dangerous? With a proper escrow account, the tenant can request payment after 1 year without the landlord's consent (if no legal proceedings have been initiated).

8. Subsequent increase of the deposit

📄 Original clause:
"The landlord may increase the deposit at any time."

⚠️ Why is this dangerous? An increase during an ongoing tenancy must be formally notified as a rent change and is only possible in exceptional cases.

🔍 You've now understood the most important deposit pitfalls

With this knowledge, you can avoid many problems even before signing. Later, when you have your actual contract (in German, French, or Italian), you can have it checked on welfarecalc.ch free of charge and 100% locally in your browser – completely anonymous and secure.

Tip: Document the condition of the apartment when you move in with photos and a protocol – this will protect you when the deposit is refunded.

📢 Share this article with friends who are looking for an apartment. Next post in the series: Rent too high? How to properly check your contract.

Stay informed. Stay protected.