How much do you need to earn to buy a home in Switzerland?
"How much do you need to earn to buy?" The Swiss answer comes down to three numbers: 20 % equity, costs capped at 33 % of income, and a theoretical interest rate of 5 % — even when real rates sit at 2 %. Here is what that means in practice, price by price.
1. Two ceilings, not one
A Swiss bank does not set one condition but two, and both must be met at the same time. The first is affordability: theoretical housing costs must not exceed a third of your gross income. The second is equity: at least 20 % of the price, half of it from outside the second pillar.
Many buyers fail on the second while passing the first comfortably — or the other way round. That is why a serious calculation always shows which of the two is binding.
2. Computing the theoretical costs
costs = mortgage × 5 % + 1 % of price (maintenance) + amortisation
amortisation = (mortgage − 65 % of price) ÷ 15 years
income needed = costs ÷ 33 %
On a property at CHF 800,000 with 20 % down: a mortgage of CHF 640,000, i.e. CHF 32,000 of theoretical interest, CHF 8,000 of flat-rate maintenance and CHF 8,000 of annual amortisation — CHF 48,000 in total. Divided by 0.33, that gives a required gross income of about CHF 145,500.
The 5 % theoretical rate is not a forecast: it is a stress test. The bank checks that you would hold up if rates rose durably, because it is lending over twenty years, not two.
3. Income needed, price by price
| CHF 500,000 — down payment 100,000 | approx. 91,000 CHF/year |
| CHF 600,000 — down payment 120,000 | approx. 109,000 CHF/year |
| CHF 800,000 — down payment 160,000 | approx. 145,500 CHF/year |
| CHF 1,000,000 — down payment 200,000 | approx. 182,000 CHF/year |
The rule of thumb that follows: the affordable price is around 5.5 times gross annual income, provided the equity keeps up. A household on CHF 120,000 is therefore looking at roughly CHF 660,000 — not the million that an instalment computed at market rates might suggest.
💰 What income for the property you want?Enter the price and your canton: minimum income, equity and total cash →4. The cash wall
The 20 % is not enough. Purchase costs — transfer tax, notary, land registry — are not part of the property's value: the bank does not finance them, they are paid in cash on the day of signing.
| Equity (20 % of 800,000) | 160,000 CHF |
| Purchase costs in canton Vaud (approx. 4.1 %) | 32,800 CHF |
| Cash needed at signing | 192,800 CHF |
In a low-cost canton such as Zurich or Zug, the same transaction requires CHF 163,000. The difference — nearly CHF 30,000 — comes down purely to tax geography.
📋 Purchase costs canton by cantonTransfer tax, notary, land registry: the table of all 26 cantons →5. The second pillar and the hard 10 % rule
Your pension fund can finance part of the down payment, by withdrawal or by pledge. But at least 10 % of the price must come from elsewhere: savings, pillar 3a, a gift, an advance on inheritance. On our CHF 800,000 property, that means a minimum of CHF 80,000 of "hard" funds.
Withdrawing from the second pillar is not neutral: it reduces your retirement benefits and often your disability and death cover. Pledging avoids that effect and the tax on withdrawal, but increases your effective debt.
6. What else the bank looks at
- Its own valuation. If it values the flat at CHF 760,000 while the seller asks 800,000, the 80 % applies to 760,000: you need CHF 40,000 more equity.
- The nature of your income. Bonuses, commissions and overtime are often weighted at 50 % or set aside if they have not been regular for several years.
- Your existing loans. A lease or consumer credit is added to the charges and reduces the budget accordingly.
- Employment stability: a probation period, a fixed-term contract or recent self-employment make the file distinctly harder.
7. Theoretical costs versus real cost
The gap often surprises. In our CHF 800,000 example, theoretical costs reach CHF 48,000 a year, but at a real rate of 2 % the effective monthly cost is around CHF 2,400: CHF 1,067 of interest, CHF 667 of amortisation and CHF 667 of maintenance.
That is why a tenant paying CHF 2,600 in rent can be told they "cannot afford" the same flat. The bank's test does not measure your ability to pay today, but your resilience to a rate shock.
🏠 Or start from your incomeBorrowing capacity, maximum budget and purchase costs by canton →Frequently asked questions
What income do you need to buy at CHF 800,000 in Switzerland?
About CHF 145,500 of gross annual income, with CHF 160,000 of equity, under the standard rule of 33 % affordability at a 5 % theoretical rate. You also need the purchase costs in cash, bringing the total to nearly CHF 193,000 in a canton like Vaud.
What is the 33 % rule?
Theoretical housing costs — interest computed at 5 %, flat-rate maintenance of 1 % of value and mandatory amortisation — must not exceed one third of the household's gross annual income.
Why does the bank calculate with 5 % when rates are low?
Because it is financing twenty years, not two. The theoretical rate is a stress test: it checks that the budget would hold after a lasting rise in rates. Your actual burden at market rates is much lower.
Can you buy with less than 20 % equity?
Not within the standard framework: it is a self-regulation requirement of the banking sector. At least half of that 20 % must also come from resources other than the second pillar.
Can notary fees be financed by the mortgage?
No. They are not part of the property's value and must be paid from available cash, on top of the equity. Depending on the canton they represent 0.3 % to over 4 % of the price.
- Swiss Bankers Association — guidelines on minimum requirements for mortgage financing
- FINMA — supervision of mortgage risks
- Swiss National Bank — mortgage interest rate statistics
- Cantonal tax administrations — property transfer tax rates