New sub-letting rules in Switzerland: What tenants need to know in 2026

Are you wondering if you are still allowed to share your apartment after the recent political unrest in Switzerland? At Roomlala, we receive questions every day from tenants and hosts who are legitimately worried about rumours of the law being tightened. Rest assured: subletting in Switzerland 2026 remains a perfectly legal, regulated, and secure practice. Whether you want to rent out an empty room to make ends meet or offer a furnished room to a student passing through, flat-sharing has a bright future ahead of it.

With the recent debates around the Swiss housing law, it is normal to feel lost. Tenancy law has been the subject of lively discussions, leading many tenants to wonder if they could still host someone in full compliance. The good news is that the current legal framework still protects your right to sublet, provided you follow a few rules of common sense and transparency.

See also: Student accommodation Canada 2026: What is the impact of the new cap on room rentals?, Student housing shortage in Switzerland: Homestays as a vital solution for 2026 and 2026 student room EPC: Everything you need to know about the new rental rules in Belgium

In this comprehensive article, we will decode the subtleties of tenancy law regarding subletting in 2026 for you. We will explain how to obtain your landlord's consent, how to set a fair rent without being abusive, and what your responsibilities are. Get ready to rent out your room with peace of mind and in full legality!

The legal framework for subletting in Switzerland 2026: What has (really) changed

The rejection of the two-year limit (Vote of November 2024)

To fully understand the situation in 2026, we need to take a step back. At the end of 2024, a draft revision of the Code of Obligations shook the rental world. This project aimed to drastically restrict subletting, notably by imposing an arbitrary duration limit of two years. At Roomlala, we followed these debates very closely, as they directly threatened the sharing economy and housing flexibility.

Fortunately for tenants, the Swiss people have decided. During the federal vote on 24 November 2024, this restrictive amendment was rejected with 51.58% 'no' votes. Tenants' associations, and in particular the ASLOCA (Swiss Tenants' Association) regarding subletting, played a crucial role in informing the public about the dangers of this law. This historic vote has allowed for a fair balance between the rights of landlords and those of tenants to be maintained.

Today, in 2026, long-term subletting therefore remains fully legal. There is no duration limit imposed by federal law. If you go to work abroad for three years, or if you wish to host a student for the entire duration of their bachelor's degree, you have the full right to do so, as long as you have the intention of returning to the home or if the partial subletting (one room) falls within the duration of your own lease.

Article 262 of the Code of Obligations: Still your best ally

Since the revision was rejected, the famous Article 262 of the Code of Obligations (CO) remains the absolute standard in terms of tenancy law regarding subletting. This article states very clearly that the tenant has the right to sublet all or part of their home. It is a fundamental right that cannot be taken away from you by a simple clause in your lease agreement.

However, this right is not unconditional. Article 262 specifies that subletting is subject to the consent of the landlord (the owner or the property management agency). This point is crucial: you cannot sublet in secret. At Roomlala, we always encourage total transparency. A relationship of trust with your landlord is the key to a successful and serene subletting experience.

It is important to note that many standard lease agreements today still contain a clause prohibiting subletting in principle. Legally, in Switzerland, such a general prohibition clause is considered null and void. Your landlord cannot prohibit you from subletting in an absolute manner. They must examine each request on a case-by-case basis, according to very strict criteria defined by law.

How to rent out your room legally and obtain the landlord's agreement?

The golden rule: prior and written consent

To rent out your room legally, the first essential step is to obtain your landlord's agreement even before your subtenant arrives. Subletting without asking for this authorisation exposes you to major risks. Indeed, a landlord discovering an undeclared sublet is entitled to demand the immediate termination of your own lease for breach of trust, thus leaving you without accommodation.

At Roomlala, we strongly advise you to always make your request in writing, ideally by registered mail. Your request must be transparent and contain all the information necessary for the landlord to make their decision. Here is what you must provide them with:

• The full identity of the subtenant (surname, first name, copy of an identity document).
• The financial conditions (the amount of the sublet rent and utility costs).
• The planned duration of the sublet (start and end dates, or mention of an indefinite period).
• The use that will be made of the premises (exclusively for residential purposes).

Once the request has been sent, wait for the written response from your management agency or landlord. Never settle for a simple oral agreement over the phone, because in the event of a dispute, you would have no proof to provide. A written consent is your best insurance to sleep soundly.

The three legitimate reasons for the landlord to refuse

As mentioned previously, your landlord cannot refuse your subletting request on a simple whim. Swiss housing law is very clear on this subject: a refusal is only valid for three strict and exhaustive reasons. If your situation does not fall into any of these three categories, the landlord is obliged to accept.

The first reason for refusal is the tenant's refusal to disclose the conditions of the sublet. If you hide the name of your subtenant or the amount of rent you are going to charge them, the landlord is entitled to say no. Transparency is therefore your best ally.

The second reason concerns abusive conditions. The landlord will ensure that you are not making a profit at their expense (we will return to this in detail in the next section). If you rent your apartment for 1500 CHF and you sublet a room for 1200 CHF, the landlord will categorically refuse due to abusive overpricing.

The third reason is a major disadvantage for the landlord. This criterion is assessed on a case-by-case basis. For example, if you sublet a 20m2 studio to a family of four, the landlord will invoke overcrowding of the premises. Likewise, if the subtenant has notoriously problematic behaviour or if they use a residential room to set up a noisy workshop, the refusal will be justified.

Avoiding financial pitfalls: The 'zero profit' rule

How to calculate a fair rent for your subtenant?

One of the pillars of subletting in Switzerland 2026 is the strict prohibition on making a financial profit. The legislator considers that the main tenant does not have to get rich thanks to a property that does not belong to them. The rent you ask your subtenant for must therefore cover only their actual costs, without any profit margin.

To calculate a fair rent, you must base it on the main rent you pay, including utilities, and divide it proportionally. The most common and accepted method by management agencies is the calculation per square metre. You must take into account the surface area of the room rented exclusively, as well as a share of the common areas (kitchen, bathroom, living room).

Let's take a concrete example: you rent a 100m2 apartment for a total rent of 2000 CHF per month. You decide to sublet a 20m2 room, and the subtenant has access to 40m2 of common areas that they share with you (i.e., 20m2 equivalent for them). The total surface area attributed to them is therefore 40m2. The fair rent would be (2000 / 100) x 40 = 800 CHF per month. You can add half of the electricity and internet bills to this.

The exception of furnished accommodation: the surcharge for depreciation

There is a legal exception to the strict rule of proportional rent. If you offer a furnished room on Roomlala, you are entitled to apply a slight surcharge to the base rent. This surcharge is not considered a profit, but a financial compensation for the wear and tear of your own furniture (bed, wardrobe, desk, television, etc.).

In Switzerland, jurisprudence and associations such as ASLOCA agree that a surcharge for the depreciation of furniture is acceptable if it is between 15% and 20% maximum of the empty rent of the room. Going beyond this percentage would risk pushing your contract into the category of abusive conditions, justifying a refusal from the landlord.

For example, if the proportional rent for the empty room is calculated at 500 CHF, you can legally ask your subtenant for a furnished rent situated between 575 CHF and 600 CHF. At Roomlala, we recommend that you keep the purchase invoices for your furniture. In the event of an inspection by the agency, you will thus be able to easily justify this surcharge and prove your good faith.

Responsibilities and best practices for serene cohabitation

The main tenant remains the only guarantor

It is fundamental to understand that subletting does not create any direct legal link between your subtenant and your landlord. As the main tenant, you remain the sole legal and financial representative towards the landlord. This is what is called joint and several liability.

Concretely, this means that if your subtenant does not pay you their rent at the end of the month, you are still required to pay the full main rent to your agency. The landlord will not turn against the subtenant; they will turn against you. Similarly, if the subtenant causes damage to the apartment (stain on the parquet, broken window), it is your security deposit that will be engaged at the end of the lease.

To protect yourself, we advise you to require your subtenant to provide a private civil liability insurance (RC) certificate valid in Switzerland, as well as a deposit equivalent to one or two months' rent. Always draft a written and detailed subletting contract, and carry out a meticulous inventory check upon entry and exit. On Roomlala, our platform facilitates these steps to offer you a secure framework.

Focus on the canton of Vaud: The new RULV of July 2026

While federal law sets the broad outlines, it is important to remain attentive to cantonal specificities. For example, in the canton of Vaud, new Vaudois Rental Rules and Practices (RULV) came into force on 1 July 2026. These new guidelines further clarify and regulate the practice of subletting at the local level.

The 2026 RULV heavily insist on the obligation to formalise exchanges. They remind that the landlord's written consent is an imperative step and that management agencies have a regulated response time (generally 30 days) to validate or refuse the request, provided that the file submitted by the tenant is complete.

These cantonal rules also specify the calculation methods for the re-invoicing of heating and hot water charges, in order to avoid frequent disputes at the end of the year. If you reside in the canton of Vaud or in another canton with specific joint rules (such as Geneva), take the time to consult the official local documents or to contact the cantonal section of ASLOCA to ensure total compliance.

In conclusion, subletting in Switzerland in 2026 remains a wonderful opportunity to make your free space profitable or to find flexible accommodation, provided you play the transparency game. By respecting tenancy law, obtaining your landlord's written agreement, and applying a fair rent, you protect yourself from any legal inconvenience. At Roomlala, we are proud to accompany you on a daily basis to make cohabitation a human, secure, and 100% legal experience!