What minimum salary do you need to buy a house in Switzerland?

Asking how much you need to earn to buy a house in Switzerland seems to call for a salary figure: CHF 100’000.–, CHF 150’000.– or CHF 200’000.– per year.

In reality, that question contains three separate questions.

How much do you actually earn? How much of that income will the lender regard as sustainable? And how much mortgage debt can that income support under the lender’s calculation rules?

This distinction completely changes how you determine your property budget.

An employee with a fixed gross income of CHF 160’000.–, an entrepreneur paying themselves CHF 160’000.– from their own limited company and someone receiving CHF 120’000.– fixed plus CHF 40’000.– in bonuses all show annual income of CHF 160’000.–. Yet they do not necessarily have the same borrowing capacity.

And that is precisely where the question “what salary do I need to buy a house?” becomes interesting.

Your real budget starts with the income the bank accepts

When a bank assesses a mortgage application, it does not simply take your salary from an Excel sheet and multiply it by a coefficient.

It wants to determine whether the financing will remain affordable over time.

FINMA FINMA provides particularly useful guidance on this point. For an owner-occupied home, it regards affordability of no more than 33% of sustainable gross income, using a theoretical interest rate of 5% and, for a new property, theoretical ancillary costs of 0.8% of the lending value, as one sustainable approach. It also cites another possible method based on 38% of sustainable net income. These are prudential benchmarks, not a single statutory formula imposed on every bank.

That detail matters.

The figure your mortgage depends on is therefore not necessarily your declared gross income, but your gross income considered sustainable by the lender.

In practice, there are three different incomes

To understand how much you need to earn to buy a house, it helps to distinguish between:

• the income you receive;
• the income you declare for tax purposes;
• the income the lender accepts for its mortgage calculation.

For an employee whose remuneration is entirely fixed, those three figures may be close.

For an entrepreneur, a self-employed person or someone whose remuneration contains a large bonus component, they can differ substantially.

Take a manager earning CHF 130’000.– fixed who received bonuses of CHF 40’000.–, CHF 50’000.– and then CHF 20’000.– over the last three years.

It would be imprudent to say that this person earns CHF 170’000.– simply because the latest salary certificate shows that amount.

Some institutions may use an average of variable remuneration, others only a portion of it, while others may exclude it if its sustainability is not sufficiently proven.

The income needed to buy a house therefore depends as much on the composition of your income as on its amount.

The formula that turns your income into a property price

For an owner-occupied main residence, the bank’s calculation generally combines three theoretical costs:

• mortgage interest;
• the amortisation;
• the maintenance costs and other property expenses.

The interest is normally not calculated using the mortgage rate you could obtain today.

FINMA, for example, regards a theoretical rate of 5% as sustainable in the approach described above.

It is a stress test.

You might therefore actually pay CHF 18’000.– in annual interest while being assessed as if that cost were CHF 40’000.–.

Use our mortgage calculator to obtain an indicative estimate of your home financing.

This difference explains many apparently incomprehensible bank rejections.

Example: a CHF 1’000’000.– house

Take a new home worth CHF 1’000’000.– with CHF 200’000.– in equity.

The mortgage is CHF 800’000.–.

Using the following prudential assumptions:

• theoretical interest at 5%: CHF 40’000.–;
• theoretical ancillary costs at 0.8%: CHF 8’000.–;
• amortisation of the debt above two thirds of the value over 15 years: about CHF 8’900.–.

The calculated annual burden comes to approximately CHF 56’900.–.

At 33% of income, that corresponds to sustainable gross income of around CHF 172’000.–.

This is neither a financing promise nor a limit used by every lender. Some institutions use 1% for costs rather than 0.8%, some use different parameters, and the borrower’s profile also matters.

But this example gives a far more meaningful answer to “how much do I need to earn to buy a house?” than an isolated nationwide salary figure.

What budget does your salary support?

Using exactly the same assumptions and 20% equity, the theoretical calculation gives the following:

Sustainable annual gross income	Approximate property price
CHF 80’000.–	CHF 464’000.–
CHF 100’000.–	CHF 580’000.–
CHF 120’000.–	CHF 696’000.–
CHF 150’000.–	CHF 870’000.–
CHF 180’000.–	CHF 1’044’000.–
CHF 200’000.–	CHF 1’160’000.–
CHF 250’000.–	CHF 1’450’000.–

This table also lets you reverse the question: instead of asking only what salary do I need to buy a house, you can start with the property you want and work out the bank income required.

This approach is more relevant once you already know the price range in your area.

Equity can be more powerful than a few thousand francs of salary

Property guides often say: “the more equity you contribute, the better”.

That is true, but too vague to be genuinely useful. The effect is not linear.

Let us keep the same CHF 1’000’000.– house and the same FINMA calculation: 5% theoretical interest, 0.8% ancillary costs and 33% affordability.

Equity	Mortgage	Theoretical gross income required
20% – CHF 200’000.–	CHF 800’000.–	approx. CHF 172’000.–
25% – CHF 250’000.–	CHF 750’000.–	approx. CHF 155’000.–
30% – CHF 300’000.–	CHF 700’000.–	approx. CHF 137’000.–
33.3% – approx. CHF 333’000.–	approx. CHF 667’000.–	approx. CHF 125’000.–
35% – CHF 350’000.–	CHF 650’000.–	approx. CHF 123’000.–
40% – CHF 400’000.–	CHF 600’000.–	approx. CHF 115’000.–

Here is the interesting part: increasing equity from 20% to around one third reduces the theoretical income required from about CHF 172’000.– to CHF 125’000.–.

Why is the reduction so large?

Because two mechanisms operate at the same time.

Your mortgage becomes smaller, so the theoretical interest charge falls. More importantly, when the debt reaches around two thirds of the property value, there is no longer any debt above that level that must be amortised under the minimum standard.

You cross a threshold.

That is very different from a simple rule such as “CHF 10’000.– more equity = CHF X less salary required”.

Submit a request now to receive mortgage offers and give yourself a wider range of options.

Your next CHF 50’000.– does not always have the same effect

Imagine two buyers who each have an additional CHF 50’000.– to invest.

The first increases their equity from 20% to 25%.

The second increases it from 30% to 35%.

Both reduce the mortgage by CHF 50’000.–, but they are not at the same point in the debt structure.

For the second buyer, that extra contribution may cross the threshold at which amortisation of the second rank.

This is one reason why it is useful to test several financing structures rather than only the minimum 20%.

You should nevertheless retain liquidity. Putting your last franc into the house to pass the bank’s test and then discovering three months later that the heating system must be replaced would be a rather theoretical victory.

Buying alone, as a couple or self-employed: the same income does not produce the same application

Buying alone: no second income to absorb a setback

For a single buyer, income is generally easier to assess when it consists of a fixed salary.

With sustainable gross income of CHF 120’000.– a year and 80% financing, our simulation gives a budget of around CHF 700’000.–.

But that figure can fall if the applicant already has:

• a lease;
• a personal loan;
• maintenance payments;
• other recurring financial commitments.

A car lease is therefore not merely a monthly expense. When property financing is close to the limit, it can become the small line item that moves the application from the right side of the calculation to the wrong one.

Buying as a couple: simply adding the salaries is not enough

Suppose:

• person A: CHF 110’000.–;
• person B: CHF 70’000.–;
• total: CHF 180’000.–.

On paper, the household can consider a property budget above CHF 1 million according to our simulation.

But what happens if person B plans to reduce their workload from 100% to 60% in the near future?

The current income genuinely exists. Yet it is no longer necessarily sustainable income.

Some lenders may factor a foreseeable reduction in income into their assessment, particularly where a change in employment percentage is already known or being considered.

The lesson is subtler than a simple calculation: a snapshot of your income on the day you apply is not always enough; the lender is looking at the future path of your income.

Self-employed: an excellent year can almost be a disadvantage

For a self-employed person, the question “how much salary do I need to buy a house?” is not quite the right one, because there may be no salary comparable with that of an employee.

The lender is primarily looking for a repeatable economic result.

Institutions may ask for several financial years in order to understand the development of income, the profitability of the business and its stability.

Take three results:

• year 1: CHF 105’000.–;
• year 2: CHF 125’000.–;
• year 3: CHF 210’000.–.

An online calculator into which you enter CHF 210’000.– may give you a spectacular budget.

The lender, however, will mainly see a spectacular fluctuation.

The exceptional year is therefore not necessarily the one that increases your affordability the most. It may instead prompt more questions about the sustainability of the income.

For a self-employed buyer, preparing the financing ideally starts before falling in love with a house.

Your own limited company pays your salary? That is a special case

This is probably one of the most misunderstood situations.

You own and manage a limited company. Your company pays you CHF 180’000.– per year.

You have an employment contract, payslips and a salary certificate.

Does that mean you are assessed exactly like an executive at a large company or public administration earning CHF 180’000.–?

Not necessarily.

The reason is simple: you control both the recipient of the salary and, directly or indirectly, the entity paying it.

The bank may therefore want to understand not only your personal income, but also the company’s ability to continue paying it.

The company accounts then become particularly important: profit, revenue trend, equity, liquidity, debt and the stability of previous financial years.

An owner-manager could perfectly well decide to increase their salary from CHF 120’000.– to CHF 200’000.– a few months before applying for a mortgage.

That does not automatically turn CHF 200’000.– into sustainable income.

The same applies to dividends.

A large one-off distribution may improve your liquidity without becoming the banking equivalent of a recurring fixed salary.

For a business owner, the question is therefore not simply “how much should I pay myself?”, but “what level of remuneration can my company demonstrate sustainably?”

That nuance alone is a good reason to prepare the application with several lenders rather than relying only on online calculators.

Two banks can look at the same house and see different financing

This is probably the most important point in the entire guide.

FINMA surveyed 27 banks and 18 insurance companies about their lending criteria and found that affordability criteria vary materially between institutions. It also identified financing arrangements granted as exceptions to the banks’ own internal criteria, known as “exceptions to policy” or ETPs.

In other words, the familiar 33% calculation is not a federal machine into which every Swiss mortgage application is fed.

It is a prudential reference framework around which different lending policies exist.

FINMA, for example, regards the combination of 33% of gross income, 5% theoretical interest and 0.8% ancillary costs for a new property as sustainable. But its survey shows that the thresholds and theoretical costs actually applied are not uniform.

The mortgage rate is therefore not always the first thing to compare

Suppose you earn CHF 155’000.– and want to buy a house for CHF 950’000.–.

One bank rejects your application.

You then look for a bank offering a rate 0.10 percentage point lower.

You may be looking in the wrong place.

Your first problem is whether the financing is accepted, not its price.

An institution that recognises more of your variable income or uses a methodology suited to your profile may be far more relevant than one quoting a few basis points less but rejecting the application.

This is where the work of a mortgage broker really comes into play: not only comparing rates, but matching your application against the lending policies of several lenders.

You can earn enough and still be unable to buy the house

Here is the second trap.

You have calculated:

• house: CHF 1’000’000.–;
• required equity: CHF 200’000.–;
• mortgage: CHF 800’000.–;
• salary: sufficient.

Everything appears to work.

Then the bank values the property at only CHF 920’000.–.

Suddenly, you no longer have the same financing.

Lenders establish a lending value, meaning the value used as the reference for securing the loan.

If the price you agree to pay exceeds the value accepted by the lender, the difference may have to be covered with additional equity.

This can create a paradoxical situation:

you can have exactly the income needed to buy a CHF 1’000’000.– house, exactly CHF 200’000.– available, and still be unable to finance that particular house.

The problem is no longer your salary. It is the house.

This distinction is very useful when a buyer receives a rejection. You need to identify what failed before concluding that the property budget is too high.

At 50, the right question is already no longer simply your current salary

Take two buyers aged 35 and 57 respectively. Each earns CHF 180’000.– and has the same amount of equity.

The same property budget does not necessarily mean the same long-term financing.

Why?

Because debt above two thirds of the value normally has to be amortised within the required period, and approaching retirement shortens the time available.

More importantly, the CHF 180’000.– salary may disappear a few years later and be replaced by retirement income.

Lenders may then recalculate affordability as retirement approaches, and the methods used to take pensions and assets into account can vary between institutions.

A high employment income at age 58 can therefore conceal substantially lower future affordability.

For a buyer in this position, the annual income needed to buy a house is therefore not only today’s income; it is also the income with which the house will have to remain affordable tomorrow.

That can lead to contributing more equity, amortising more quickly or revising the target property price.

The bank’s maximum is not your personal maximum budget

There is one more misconception to remove.

A bank may consider you capable of financing CHF 1’050’000.–.

That does not mean CHF 1’050’000.– is the right budget for you.

The bank is primarily assessing the credit risk.

It does not necessarily know how much you want to keep for travel, your children’s education, a future business project or your perfectly reasonable wish not to eat pasta for fifteen years just to admire your façade.

There are therefore two ceilings: the bank’s ceiling and your personal ceiling.

Use the lower of the two.

Before making a purchase offer, add a realistic homeowner budget to the mortgage calculation, including foreseeable renovations, condominium charges if you are buying an apartment, insurance, tax, acquisition costs and a liquidity reserve.

The budget for buying a house is not simply the amount someone is willing to lend you.

What will change for tax purposes from 2029

One important change is now certain: Swiss voters approved the reform of owner-occupied property taxation. The Federal Council has set its entry into force for 1 January 2029.

From that date, the taxation of imputed rental value on owner-occupied homes will be abolished. At the same time, the ability to deduct interest on debt and maintenance costs will be significantly restricted; a temporary interest deduction is planned for certain first-time purchases.

For a buyer, this reform should be included in the financial planning.

It does not directly change the minimum salary needed to buy an apartment or house today. It will, however, change the tax treatment of home ownership a few years after the purchase.

This reinforces an idea that runs throughout this guide: a mortgage should be assessed over several years, not only at the moment you sign before the notary.

How to determine your real affordability before viewing properties

If you are currently looking for a home, the following approach is much more reliable than starting from a price found on a property portal.

Start by determining your probable bank-recognised income: fixed salary, genuinely sustainable variable pay, the household’s second income, self-employment income and other recurring income.

Then list your existing commitments.

Determine your available equity, but distinguish between capital you are legally able to use and capital you actually want to lock into the property.

Then test several levels of equity contribution.

For example, it can be useful to compare:

• 20%;
• 25%;
• 30%;
• around one third equity.

Finally, compare those scenarios against several lending policies.

This is particularly important if you are self-employed, an entrepreneur, highly bonus-dependent, close to retirement or only just above a lender’s affordability threshold.

A simulation with one institution tells you what that institution thinks of your application. It does not necessarily tell you what the Swiss mortgage market can finance.

That is precisely the value of an assessment with a mortgage broker in your region who can submit or compare your situation with several lenders.

Even before looking for the house, you can establish a realistic price range, identify the most effective equity structure and avoid negotiating for a property that your financing ultimately cannot support.

FAQ: salary and buying property in Switzerland

The figure that matters is ultimately not your salary

To the question “how much do you need to earn to buy a house?”, the most accurate answer is therefore not CHF 100’000.–, CHF 150’000.– or CHF 200’000.–.

The decisive figure is your sustainable income recognised by the lender, considered together with the mortgage debt actually required.

That is why two people with the same salary can have very different purchasing capacities, and why two lenders can reach different conclusions on the same application.

Before adapting your property search to the answer from a calculator or a single institution, it is therefore worth carrying out a complete risk analysis covering your income, equity, age, commitments and the planned financing structure.

A mortgage broker can compare several lenders and determine not only the terms on which your purchase could be financed, but first which institutions are likely to accept your profile and what property budget it actually supports.

It is generally far more useful to know that answer before finding the house than after signing a reservation.

Disclaimer: The calculations in this guide are simulations intended to explain the affordability of a mortgage in Switzerland. They constitute neither a financing offer nor a guarantee of approval. Institutions apply their own rules, particularly regarding recognised income, theoretical costs, the calculation interest rate, lending value and variable income. Personal circumstances, the property and pension planning must be assessed individually.

Main sources: FINMA, Risks in the real estate and mortgage markets; UBS Switzerland, documentation on affordability and the documents required for a mortgage; Federal Department of Finance, information on the reform of owner-occupied property taxation.