Mietkaution
Rental Deposit
[Meet-cow-tzyon]Simple Definition
A security deposit required by Swiss landlords, legally capped at 3 months' gross rent. It serves as collateral for unpaid rent or damages beyond normal wear and tear.
Why this matters to Expats.
The landlord CANNOT hold this money themselves. It must be deposited in a specific blocked bank account (Mietkautionskonto) in your name. If a landlord asks for cash or a transfer to their private account, it is a red flag.
Actionable Intelligence
SwissCaution: If you don't have the cash (e.g., CHF 9,000) upfront, you can pay an insurance premium (~5%) instead. It's expensive long-term but frees up cashflow.
Release: The landlord has up to 12 months to release the funds if utility bills are pending, but usually, it happens within 30 days.
Interest: The accumulated interest on the account belongs to YOU, not the landlord.
Frequently Asked Questions
Can I use my foreign bank?
No. It must be a Swiss bank account specifically designated as a rental surety account.
What if the landlord keeps it?
If they don't sue you within 1 year, the bank MUST release the money to you automatically.
Is it always 3 months?
For residential compliance, yes, usually. Commercial leases can be 6 months.
Securing a Rental?
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