Very few people buy a property in Switzerland with cash. The system runs on mortgages, and it operates by rules that differ from most other countries: a high equity threshold, a strict affordability test and a fixed expectation about how fast you reduce the loan. Understand these and financing slides into place; ignore them and the bank's answer is a polite no. This guide explains how Swiss mortgage financing actually works in 2026.
Short answer: Plan on at least 20% equity, a bank that checks your mortgage against ~5% reference interest and a third of your income, and a requirement to bring the loan down from 80% to 67% of value within about 15 years. On top of the price, budget ~3–5% for notary, registration and transfer tax. Get financing confirmed in writing before you make an offer.
In this guide
The 20% equity rule
Swiss lenders expect you to put in at least 20% of the purchase price as equity, and in practice many ask for closer to 25%. You may use funds from your occupational pension (pillar 2) for part of that 20%, but banks usually refuse pension money for the riskiest slice — the top 10% of the loan. Cash, savings and investable assets form the safest footing.
Loan-to-value & the two ranks
A standard mortgage finances up to 80% of the property value. That 80% is usually split in two: a first-rank loan up to 67% and a second-rank loan for the 67%–80% bracket. The second rank carries a higher interest rate and is the part you are expected to pay down. Keep this structure in mind — it drives both the interest you pay and the amortisation you owe.
Example
A CHF 1,000,000 apartment typically needs ~CHF 200,000 equity, with a CHF 800,000 mortgage — roughly CHF 670,000 first rank and CHF 130,000 second rank. The bank then expects the loan to shrink to 67% of value over ~15 years.
Amortisation: 80% to 67% in ~15 years
You are expected to bring the loan down to 67% of the property value within about 15 years. Two ways:
- Direct amortisation — you repay capital each year, lowering the loan and the interest bill over time.
- Indirect amortisation — you pay instead into a pillar 3a account that stands as collateral; the loan stays constant but the payments are tax-deductible and the money stays under your control.
Once the loan is at 67%, amortisation is no longer mandatory — many owners stop and let the loan run.
The affordability test (carrying capacity)
Banks do not simply lend a multiple of your salary. They check that your total housing cost stays within about one third of gross income, where the cost is calculated conservatively — interest on the full loan at a reference rate of around 5%, plus amortisation and ancillary charges. This is why the same apartment can be comfortably affordable for one household and out of reach for another: the test is about your income, not the property.
Fixed-rate vs Saron
| Type | How it works | Best when… |
|---|---|---|
| Fixed-rate | Interest locked for a term (often 2–10 years) | You want predictable payments and stable planning |
| Saron (variable) | Tracks the short-term reference rate month to month | You expect rates to stay low and accept some risk |
Most owner-occupiers choose a fixed-rate mortgage for the certainty. A broker can compare offers across banks — the spread between lenders on the same loan is real.
The full set of buying costs
Financing is only part of the picture. Remember to add, on top of the price:
- Notary fee (~0.5–1%)
- Land-register entry (~0.1–0.5%)
- Cantonal transfer tax / tax on mutation (~1–2%)
- Mortgage arrangement fees and sundries
Together these typically reach 3–5% of the price. Factor them into your cash budget from day one.
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Talk to Riviera Host ImmobilierFrequently asked questions
How much equity do I need for a mortgage in Switzerland?
As a rule at least 20% of the purchase price, and banks often prefer closer to 25%. You can use funds from your pension (pillar 2) for part of the 20%, but not for the highest-risk portion.
What is the 15-year amortisation rule?
Swiss practice asks you to amortise the loan down from 80% to 67% of the value within about 15 years. Direct amortisation lowers your loan and interest; indirect amortisation parks the money in a pillar-3a account instead.
How much mortgage can I afford?
Banks generally cap total housing costs (interest on a 5% reference rate, amortisation and ancillary costs) at about one third of your gross income. This carrying-capacity test, not the price, usually decides what you can borrow.
What is a fixed-rate versus Saron mortgage?
A fixed-rate mortgage locks in the interest for a chosen term and adds predictable payments. A Saron (variable) mortgage tracks the short-term reference rate and is usually cheaper initially, but the rate can rise. Most buyers take a fixed rate for stability.
What additional costs come with a Swiss mortgage?
Beyond the purchase price and interest, budget for arrangement and notary fees, the land-register charge, cantonal transfer tax, and ongoing ancillary costs — typically another 3–5% of the price upfront.
Related reading: How to buy property in Switzerland, step by step · Buying property in Switzerland as a foreigner: the rules · Short-term vs long-term rental in Montreux
Founder of Riviera Host & Riviera Host Immobilier. 8+ years managing short-term rentals on the Swiss Riviera; registered for real-estate brokerage and property management.