Buying guide
How much house can I afford in Switzerland? Calculate income, equity and affordability
How expensive can a house or apartment be for a Swiss bank to approve the financing? The answer depends not only on your available equity, but also on the bank’s lending value, your gross income, calculated housing costs and long-term affordability.
Author: Nikita von Niederhäuser, UrbanHome real estate expert | Updated: | Reading time: approximately 14 minutes
In brief
For owner-occupied property, Swiss lenders commonly finance no more than approximately 80 percent of the lending value. Buyers therefore generally need at least 20 percent equity. At least 10 percent of the lending value must come from assets that are not withdrawn or pledged from the occupational pension fund. Income must also be sufficient: calculated interest, amortisation, maintenance and ancillary costs may generally not exceed about one third of gross income.
Contents
How much house can I afford?
The maximum purchase price is not determined by a single number. In practice, three conditions must be met at the same time. The lowest of these three limits ultimately determines which house or apartment can realistically be financed.
| Limit | What is assessed? | Common benchmark |
|---|---|---|
| Equity | How much of the purchase price can you finance yourself? | Usually at least 20 percent |
| Loan-to-value ratio | How large can the mortgage be compared with the lending value? | Usually no more than approximately 80 percent |
| Affordability | Is income sufficient for interest, amortisation and ongoing costs? | Usually no more than approximately 33 percent of gross income |
The 20-percent and 33-percent rules do not guarantee financing. Lenders may apply stricter internal criteria and also consider creditworthiness, age, employment, property type, condition and existing financial commitments.
How do Swiss banks calculate affordability?
Lenders generally do not use the current mortgage rate for the affordability assessment. Instead, they commonly apply a long-term calculated rate of approximately 4.5 to 5 percent. This tests whether the financing would remain affordable if market rates increased later.
Simplified affordability formula
Calculated mortgage interest
Mortgage × approximately 5 percent
Maintenance and ancillary costs
Property value × approximately 1 percent
Amortisation
Mortgage amount above two thirds of the lending value ÷ maximum 15 years
Affordability ratio
Total annual calculated costs ÷ annual gross income × 100
If the result is approximately 33 percent or lower, the financing may be affordable under this simplified calculation. The final assessment depends on the individual lender’s rules.
What income is needed for different property prices?
The following table uses a simplified standard calculation with 20 percent equity, an 80 percent mortgage, a 5 percent calculated interest rate, 1 percent maintenance and ancillary costs, and amortisation to two thirds within 15 years.
| Purchase price | Equity | Mortgage | Calculated annual costs | Approximate gross income |
|---|---|---|---|---|
| CHF 600,000 | CHF 120,000 | CHF 480,000 | CHF 35,300 | CHF 107,000 |
| CHF 800,000 | CHF 160,000 | CHF 640,000 | CHF 47,100 | CHF 143,000 |
| CHF 1,000,000 | CHF 200,000 | CHF 800,000 | CHF 58,900 | CHF 179,000 |
| CHF 1,200,000 | CHF 240,000 | CHF 960,000 | CHF 70,700 | CHF 214,000 |
| CHF 1,500,000 | CHF 300,000 | CHF 1,200,000 | CHF 88,300 | CHF 268,000 |
These examples are non-binding estimates. A larger equity contribution reduces the mortgage and generally lowers the required income. Lenders may apply different interest rates, maintenance allowances, income thresholds or amortisation assumptions.
Which assets can be used as equity?
Depending on the lender, several types of assets may be accepted as equity. Their availability, stability and realisable value are important.
- Cash and savings
- Securities, investment funds and other realisable assets
- Pillar 3a assets
- Gifts and advance inheritances
- Qualifying loans from close family members
- Withdrawal or pledge of occupational pension assets
- Existing unencumbered land or residential property
The recognised minimum standard requires at least 10 percent of the lending value to come from assets outside the occupational pension fund. Pillar 3a assets may generally qualify, depending on the financing structure and lender.
Do not invest all your freely available assets. You should retain reserves for repairs, insurance, taxes, moving expenses and unexpected costs after completion.
What is the lower-of-cost-or-market principle?
The bank does not automatically accept the agreed purchase price as its lending value. In a normal property transfer, the lower of the purchase price and the bank’s assessed market value is generally used.
Example with a lower bank valuation
- Purchase price: CHF 1,100,000
- Bank lending value: CHF 1,000,000
- Maximum mortgage at 80 percent: CHF 800,000
- Required equity: CHF 300,000
The CHF 100,000 difference between the purchase price and the lending value must be financed with additional equity outside the occupational pension fund. Paying substantially above the bank’s valuation can therefore increase the actual equity requirement considerably.
Which income does the bank recognise?
Lenders assess not only the amount of income, but also its stability and sustainability. A permanent salary is generally treated differently from irregular or fluctuating income.
- Permanent gross employment income
- Income of both partners where both participate in the financing
- Bonuses and commissions, often only partly or as a multi-year average
- Self-employed income, usually based on several annual accounts
- Rental or secondary income where it is sustainable and documented
Leasing payments, personal loans, maintenance payments and other recurring commitments can reduce affordability. A planned reduction in working hours or a foreseeable fall in income may also be taken into account.
Using the pension fund or pillar 3a to buy a home
Pension assets can make a property purchase possible. Occupational pension assets can be withdrawn in advance or pledged. They may generally only be used for an owner-occupied principal residence, not for an ordinary holiday home or investment property.
The minimum advance withdrawal from an occupational pension fund is CHF 20,000. A withdrawal can reduce future retirement, death or disability benefits and is subject to a separate tax. Additional limitations apply from the age of 50.
With a pledge, the pension assets initially remain in the pension fund. However, the mortgage remains higher, which can increase the required income. The long-term pension consequences of both options should therefore be compared carefully.
Do not overlook purchase costs and financial reserves
The required equity does not automatically cover every cost connected with purchasing a property. Further expenses may arise depending on the canton, municipality and contract.
- Notary costs and land-register fees
- Property-transfer tax or comparable cantonal charges
- Mortgage certificate and financing fees
- Property valuation and professional inspections
- Moving, insurance and initial purchases
- Immediately required renovations or energy improvements
- Contributions to the renovation fund for condominium ownership
These costs are often not fully financed through the mortgage. They should therefore be budgeted as an additional liquid reserve.
What happens to affordability after retirement?
Financing must remain affordable not only today, but also after retirement. As retirement income is often lower, lenders may assess expected pension income when buyers are older or retirement is approaching.
Possible measures include contributing more equity, amortising faster, reducing the mortgage or buying a less expensive property. Sufficient liquidity for maintenance and major renovation work remains essential.
How can the possible buying budget be increased?
Contribute more equity
A smaller mortgage reduces calculated interest and may improve affordability. However, sufficient financial reserves should remain available.
Reduce the purchase price
A less expensive region, smaller living area or fewer additional spaces can significantly reduce the required income.
Reduce existing commitments
Leasing, personal loans and other recurring commitments can negatively affect the affordability calculation.
Compare several lenders
Banks and other mortgage providers do not use completely identical valuation and affordability models.
Checklist: determine a realistic buying budget
- Calculate freely available equity
- List pillar 3a and occupational pension assets separately
- Set the liquid reserve required after purchase
- Document gross income and variable income
- Include leasing, loans and maintenance obligations
- Test affordability with a 4.5 to 5 percent interest rate
- Budget realistic maintenance and ancillary costs
- Check purchase costs in the relevant canton
- Calculate affordability after retirement
- Obtain financing confirmation before making a binding commitment
Frequently asked questions about home affordability
How much equity is required in Switzerland?
For an owner-occupied home, lenders commonly require at least 20 percent equity. At least 10 percent of the lending value must come from assets outside the occupational pension fund.
What income is needed for a CHF 1 million home?
With 20 percent equity and the standard calculated assumptions, the household needs a gross annual income of approximately CHF 178,000 to CHF 180,000.
Why is the current mortgage rate not used?
The lender uses a higher safety rate to test whether the mortgage should remain affordable if market rates rise in the future.
Can pillar 3a be used as equity?
Yes. Pillar 3a assets can be withdrawn or pledged for an owner-occupied home. The exact treatment depends on the financing structure and lender.
What happens if the bank valuation is lower?
If the lending value is below the purchase price, the difference must be financed with additional equity outside the occupational pension fund.
Is 20 percent equity always sufficient?
No. Income, affordability, creditworthiness, property value, amortisation and long-term financial stability must also meet the lender’s requirements.
Find properties within your budget
Once you know your realistic purchase price, you can search specifically for suitable houses and owner-occupied apartments.
Sources and information date
Information date: 30 July 2026. Actual lending terms depend on the lender, property, canton and personal circumstances.
- Swiss Bankers Association / FINMA: Minimum requirements for mortgage financing
- Swiss Bankers Association / FINMA: Guidelines for the assessment and processing of mortgage-backed loans
- FINMA Supervisory Communication 02/2025 on mortgage lending
- Federal Social Insurance Office: Home ownership promotion using occupational pension assets
- UBS: Mortgage affordability
This guide provides general information and does not replace individual mortgage, pension, legal or tax advice.