The 20% Down-Payment Rule in Switzerland: How Much Equity Do You Really Need?

The Basic Rule

If you're researching Swiss mortgages, you'll quickly run into the same figure again and again: banks generally expect buyers to bring at least 20% of the property's purchase price (or market value, if lower) as equity, and to finance the remaining 80% or less through a mortgage. This is a long-standing convention among Swiss banks rather than a single written law, but it's applied consistently enough across the industry that you should treat it as a baseline requirement, not a rough guideline.

So for a property valued at CHF 1,000,000, you would typically need around CHF 200,000 in equity, with a mortgage covering the remaining CHF 800,000.

Not All Equity Is Equal: The 10% "Hard Equity" Requirement

This is the part many expats miss. Within that 20%, Swiss banks generally require that at least half (i.e. roughly 10% of the purchase price) come from "hard" equity — savings, gifts, inheritances, or proceeds from selling other assets. The remaining portion can often come from your Swiss occupational pension (Pillar 2) or restricted private pension (Pillar 3a) savings.

Why does this distinction matter? Pension fund withdrawals are treated differently by banks and reduce your future retirement capital, so lenders want to see that you also have genuine savings at stake. The exact split and flexibility around this can vary from bank to bank, so don't assume every lender treats pension withdrawals identically — always confirm this with the specific bank or mortgage broker you're working with.

The Purchase Price Isn't the Only Cost

Equity calculations often focus only on the property price, but as a buyer you'll face additional costs on top, which typically cannot be financed through the mortgage and must be paid in cash. These generally include:

• Property transfer tax and/or land registry fees (rates and names vary significantly by canton)
• Notary fees for the purchase contract
• Possibly a real estate agent's commission, if applicable

These extra costs are often estimated in the low single-digit percentage range of the purchase price, but the exact amount depends heavily on the canton and the transaction. Because these costs generally must be covered separately from your 20% equity, it's wise to budget more cash than the down payment alone suggests.

Affordability: The Other Half of the Equation

Equity is only one hurdle. Banks also assess affordability — whether your income can comfortably cover the ongoing costs of owning the property. This is usually calculated using a theoretical ("imputed") interest rate well above current market rates, plus amortization and maintenance costs, compared against your income. Many banks use a rule of thumb that these costs shouldn't exceed roughly a third of your gross income, though the exact assumptions and thresholds vary by lender.

Even if you have plenty of equity, a bank may decline or reduce a mortgage if your income doesn't meet its affordability criteria — something expats with variable, foreign, or recently-started Swiss income should plan for carefully.

Special Considerations for Expats

• Permit status matters. Your residence permit type can affect both your eligibility to buy property and the terms lenders offer. Some categories of foreign nationals face restrictions under Swiss rules governing property acquisition by non-residents (commonly known as "Lex Koller"), particularly for second homes or investment property, though owner-occupied primary residences are generally treated differently. Rules are canton- and case-specific, so check early.
• Foreign income and assets can usually be counted toward equity and affordability, but banks may apply extra scrutiny, currency risk considerations, or require additional documentation compared to Swiss-based income.
• Pension access may be limited or unavailable if you haven't been contributing to a Swiss pension scheme for long, which affects how much of your equity can come from Pillar 2 or 3a.

Practical Takeaways

• Plan for at least 20% equity, with roughly half of that in non-pension funds — but confirm exact ratios with your bank.
• Budget separately for notary, registry, and transfer costs, which vary by canton.
• Get an affordability assessment early, not just an equity calculation.
• If you're a foreign national, clarify your eligibility to purchase before you fall in love with a property.

Swiss mortgage lending is conservative by international standards, which is part of why the Swiss property market is considered stable — but it also means the entry bar for buyers is real and shouldn't be underestimated.

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This article provides general information only and is not legal, tax, mortgage, or financial advice. Rules vary by canton, bank, and individual circumstances, and can change over time. Please consult a qualified mortgage advisor, notary, tax professional, and the relevant Swiss authorities before making any decisions.