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? This depends not only on your available equity but also on the lending value, gross income, calculated housing costs and long-term affordability.
Author: Nikita von Niederhäuser , UrbanHome real estate expert Updated on: · Reading time: approx. 14 minutes
How much house can I afford?
The maximum purchase price is not determined by a single figure. 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 |
Important: 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 other commitments.
How do Swiss banks calculate affordability?
For the affordability assessment, banks generally do not use the current mortgage rate. Instead, they commonly apply a long-term calculated interest rate of approximately 4.5 to 5 percent.
This tests whether the financing would remain affordable even if interest rates increased later.
If the result is approximately 33 percent or lower, financing may be affordable under this simplified calculation. The final assessment depends on the individual lender’s rules.
What income is required for different purchase prices?
The following table uses a simplified standard calculation with 20 percent equity, an 80 percent mortgage, 5 percent calculated interest, 1 percent maintenance and ancillary costs, and amortisation down 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 higher equity contribution reduces the mortgage and generally also the required income. Banks may use different interest rates, ancillary-cost allowances, income limits or amortisation assumptions.
Example: For a home costing CHF 1’000’000, you need at least CHF 200’000 in equity with 80-percent financing. Under the simplified affordability calculation, the household also requires gross annual income of approximately CHF 179’000.
Which assets can be used as equity?
Cash and savings
Securities, investment funds and other realisable assets
Advance inheritances and gifts
Certain loans from family members
Existing unencumbered building land or residential property
Pillar 3a savings
Advance withdrawal or pledge of occupational pension assets
At least 10 percent of the lending value must come from assets outside the second pillar.
Do not invest all freely available assets.
After purchase, retain reserves for repairs, insurance, tax bills, moving expenses and unexpected costs.
What is the lower-of-cost-or-market principle?
The bank does not automatically accept the agreed purchase price as the lending value. In a property transfer, the lower of the purchase price and the bank’s assessed market value generally applies.
The difference between the purchase price and the lending value must be financed with additional equity outside the second pillar. A price above the bank’s valuation can therefore substantially increase the amount of equity required.
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
Which income does the bank recognise?
Gross salary
A fixed gross salary from employment is generally particularly easy to verify.
Both partners’ income
Both partners’ income may be recognised if both participate in the financing.
Bonuses and commissions
Variable income is often recognised only partially or based on multi-year averages.
Several years of accounts
Self-employed income is usually assessed using several years of financial statements.
Rental and secondary income
These may be taken into account depending on sustainability and supporting evidence.
Loans and maintenance payments
Leasing payments, personal loans, maintenance payments and other recurring commitments can reduce affordability.
Banks assess not only the amount of income but also its stability and sustainability. Planned reductions in working hours or a foreseeable drop in income may also be taken into account.
Use the pension fund or pillar 3a to buy a home?
Can make a property purchase easier.
Minimum advance withdrawal from the occupational pension fund: CHF 20’000.
May reduce future retirement benefits.
An advance withdrawal triggers a separate tax.
Pension assets initially remain in the pension fund.
The mortgage remains higher as a result.
A higher mortgage can put greater pressure on affordability.
Additional restrictions apply from age 50.
Pension assets may generally only be used for owner-occupied residential property, not for an ordinary holiday home or investment property. Compare advance withdrawal and pledging in light of their long-term pension implications.
Do not forget acquisition costs and financial reserves
The required equity does not automatically cover all costs of buying a property. Further expenses may arise depending on the canton, municipality and contract.
Fees and taxes
Notary fees, land-register fees, property-transfer tax or comparable cantonal charges, and costs for mortgage certificates and financing.
Property-specific costs
Property valuation, professional inspections, immediately necessary renovations, energy improvements and, where applicable, contributions to the renovation fund.
Keep a reserve
Moving, insurance and initial purchases should also be budgeted. These expenses are often not fully covered by the mortgage.
What happens to affordability after retirement?
Financing must remain affordable not only today but also after retirement. Since income often declines in retirement, banks also review expected pension income for older buyers or those approaching retirement.
It is particularly important to retain sufficient liquidity for maintenance and major renovations.
How can the possible buying budget be increased?
Contribute more equity
A smaller mortgage reduces interest costs and may improve affordability. However, financial reserves must not be completely depleted.
Reduce the purchase price
A less expensive region, smaller living area or a property with fewer additional spaces can significantly reduce the required income.
Reduce financial commitments
Leasing, personal loans and other recurring commitments can negatively affect the affordability assessment.
Compare several offers
Banks and other mortgage lenders do not use completely identical valuation and affordability models.
Determine a realistic buying budget
Calculate freely available equity
List pillar 3a and occupational pension assets separately
Set a liquidity reserve for after the purchase
Document gross income and variable earnings
Include leasing, loans and maintenance obligations
Calculate affordability after retirement
Test affordability with interest of 4.5 to 5 percent
Budget realistic maintenance and ancillary costs
Check purchase costs in the relevant canton
Take bank valuation and the lower-of-cost-or-market principle into account
Obtain financing confirmation before making a binding commitment
Related UrbanHome guides
Property and finances: Guide for Switzerland
Home ownership remains affordable to run, but out of reach to buy
Real estate wealth tripled – mortgage debt more than doubled
Imputed rental value ends in 2029: Who wins and who loses?
All property-buying guides
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 bank, property, canton and individual circumstances.
- Swiss Bankers Association / FINMA: Guidelines on minimum requirements for mortgage financing
- Swiss Bankers Association / FINMA: Guidelines for the assessment, valuation 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.
Frequently asked questions about home affordability
The most important answers explained concisely.
For owner-occupied property, lenders commonly require at least 20 percent equity. At least 10 percent of the lending value must come from assets outside the second pillar.
With 20 percent equity and common calculated assumptions, the required gross household income is approximately CHF 178’000 to CHF 180’000 per year.
The bank uses a higher safety rate to check whether the financing should remain affordable if market interest rates increase in the future.
Yes. Pillar 3a assets can be withdrawn in advance or pledged for an owner-occupied home. The exact treatment depends on the financing structure and lender.
If the lending value is lower than the purchase price, the difference must be financed with additional equity outside the second pillar.
No. Income, affordability, creditworthiness, property value, amortisation and long-term financial stability must also meet the bank’s requirements.
How much house you can afford depends on more than the purchase price
To finance a home, equity, loan-to-value ratio and affordability must all be adequate. At least 20 percent equity is commonly required, while the mortgage is generally limited to around 80 percent of the lending value.
Banks also assess long-term affordability using a calculated interest rate, often 4.5 to 5 percent, as well as amortisation, maintenance and ancillary costs.
A realistic buying budget should therefore account for adequate reserves, possible acquisition costs, a lower bank valuation and your financial situation after retirement.
Find houses and apartments within your budget
Once you know your realistic buying budget, you can compare current properties by type, region and purchase price.