Which Mortgage is the Right One?

21.07.2026 | from HEV Homeowners Association Switzerland

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HEV Homeowners Association Switzerland
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21.07.2026, Zurich () - Those acquiring a house or a condominium in Switzerland are often faced with the choice between a fixed mortgage and a SARON mortgage. Which solution is appropriate depends on one's personal and financial situation, long-term plans, as well as the ability and willingness to bear interest rate fluctuations. If one values predictable financing costs, they are more likely to opt for a fixed mortgage. Households with sufficient financial reserves may consider a SARON mortgage. Money market mortgages have historically often been cheaper but do not guarantee lower future financing costs.


With a fixed mortgage, the interest rate remains unchanged during the agreed term. Common terms range from two to ten years; depending on the provider, fifteen years or more may also be possible. Short terms carry the risk of renewal during a period of high-interest rates. Long terms protect against interest rate increases but limit flexibility and can lead to high costs if terminated early. Additionally, longer terms are generally, but not always, higher in interest and therefore more expensive. Hence, apart from the current interest level, possible changes such as a sale, a significant amortisation, retirement, or other life changes should be considered.

The interest rate of a SARON mortgage is based on the SARON. This reflects the average interest rate at which banks lend money to each other overnight on the Swiss money market. The bank adds a margin to this. As the SARON rises, so do financing costs. Depending on the provider, an interest cap can be agreed upon for an additional fee. Such a solution is referred to as a cap mortgage.

Many property owners divide their financing into several tranches with different terms or mortgage models. One part can be taken as a fixed mortgage, while another can be a SARON mortgage. This reduces the risk of having to renew the entire financing at an unfavorable time. However, different expiry dates can make changing providers challenging and reduce flexibility.

The development of mortgage interest rates cannot be predicted reliably. The SARON responds relatively directly to changes in the SNB's key interest rate. Fixed mortgage rates are more strongly oriented towards long-term capital market rates, already considering expectations about future key rates, inflation, and economic trends.

Comparing various providers is worthwhile, as interest rates and contract conditions can differ significantly. For fixed mortgages, interest rates and terms are particularly important, while for SARON mortgages, the margin, overall term, and the possibility of switching to a fixed mortgage matter. A longer overall term protects against short-term margin adjustments but binds clients longer to the provider. In both models, the conditions for early termination, especially any potential early repayment penalty, should also be checked.

Therefore, what matters is not just the currently cheapest interest rate, but financing that suits one's personal and financial situation in the long term.

Press contact:

HEV Schweiz

Markus Meier, Director HEV Schweiz

Tel.: +41/44/254'90'20

Mobile: +41/79/602'42'47

E-Mail: info@hev-schweiz.ch

Editor's note: Image rights belong to the respective publisher. Image rights: Africa Studio - Fotolia


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HEV Homeowners Association Switzerland


The Homeowners Association of Switzerland is the umbrella organisation for homeowners and landlords in Switzerland. The association counts around 340,000 members. With our more than 100 regional and cantonal chapters, we are always close to our members—also to you.

For over 100 years, HEV has consistently advocated for the promotion and preservation of residential and real estate property. This includes the guarantee of property rights, only as much bureaucracy as needed, economically feasible regulations, as well as moderate taxes, fees, and charges. Membership in one of the largest organisations in Switzerland is worthwhile.

Note: The "About Us" text is taken from public sources or from the company profile on HELP.ch.

Source: HEV Homeowners Association Switzerland, Press release

Original article published on: Welche Hypothek ist die richtige?