Investing in buy-to-let property in Geneva: what you need to know

Investing in rental property in Geneva remains a sought-after move, but it requires understanding four frameworks before getting started: financing, taxation, the lease and, for investors domiciled outside Switzerland, Lex Koller. The Geneva market is tight, with housing demand structurally exceeding supply. This scarcity explains part of the appeal of rental property, but it does not replace a serious review of the file. Here are the useful benchmarks.

Financing

The bank does not only look at your personal situation, it also looks at the property. For a rental purchase, the lender assesses the expected yield of the building and the ability of the rents to cover the loan costs, in addition to the equity you contribute. Requirements for down payment and amortisation follow the prudential rules applicable to Swiss banks, whose framework is set by FINMA. Each bank retains some discretion, so it is worth preparing a complete file and comparing several offers before committing.

Taxation

A property put up for rent changes your tax return. In Geneva, the rents you collect are taxable income and must be declared in full. In return, when the property is let to a third party, you do not declare an imputed rental value for that home, since it is the actual rent that is taxed. Maintenance costs for the let property generally remain deductible, as does the interest on the debt used to finance it. The precise rules on tax base, deductions and rates vary with your situation and change over time. These points should be checked with a tax adviser before building your project.

The lease framework

Becoming a landlord means taking over a contract governed by tenancy law. The tenant enjoys protections that the purchase does not call into question. A frequently misunderstood point: if you sell an occupied property, the lease does not end. Article 261 of the Code of Obligations provides that the tenancy agreement passes to the buyer together with ownership. The tenant keeps their lease, their rent and their rights, without having to sign a new contract. Repossession of the home by a new owner for their own use is subject to strict conditions and notice periods. A rental building is therefore bought with its tenants and the legal framework that protects them, which affects your investment horizon.

Lex Koller for foreign investors

If you are domiciled abroad, acquiring a property in Switzerland may require authorisation. Lex Koller governs the purchase of real estate by persons abroad and distinguishes between situations according to your status, your domicile and the use of the property. A revision of Lex Koller was put out for consultation in 2026, now closed, without being in force; the stated aim is to further restrict Swiss real estate as an investment for persons abroad. The applicable framework depends on your exact situation and the state of the legislation at the time of purchase. This point should be clarified upfront with a lawyer or a notary, as it determines whether the transaction is feasible at all.

In summary

A buy-to-let investment in Geneva has to be prepared on several fronts at once. Financing depends as much on the property as on your profile, taxation changes your tax return, the lease commits you over time and the Lex Koller framework may apply depending on your domicile. Taking the time to check each aspect with the right advisers avoids unpleasant surprises.

Considering a buy-to-let purchase? Our brokers can discuss it with you. See our properties to buy or request a valuation to frame your project.

Sources

• Republic and Canton of Geneva, taxation of property owners: ge.ch
• Code of Obligations, art. 261 (transfer of the lease on sale): fedlex.admin.ch
• Federal Office of Justice, Lex Koller: bj.admin.ch
• FINMA: finma.ch