Buying a property in Luxembourg always begins with one question: how much can you actually borrow?

Whether you are a first-time buyer, an investor or an owner looking to acquire a new home, knowing your borrowing capacity is an essential step. Yet many buyers begin their property search before they even know what budget will really allow them to carry out their plans. The result: pointless viewings, disappointment and sometimes even a financing refusal.

In Luxembourg, every bank applies its own criteria when assessing a mortgage application. Income, charges, deposit, professional stability and disposable income after charges all directly influence the amount you will be able to borrow.

Contrary to popular belief, there is no single formula that tells you precisely what your borrowing capacity is. Two banks may offer different amounts for the same profile. That is precisely why it is worth comparing several banks and using a specialist broker.

In this complete guide, we explain how Luxembourg banks assess your application, which criteria are decisive and, above all, how to optimise your borrowing capacity in order to obtain the best financing terms.

What is borrowing capacity?

Borrowing capacity is the maximum amount a bank agrees to lend you to finance your property project.

That capacity depends on your current financial situation but also on your future ability to repay your loan without putting your family budget under strain.

It is important to distinguish between several notions that are often confused:

• Borrowing capacity : the amount the bank is prepared to finance.
• The maximum monthly repayment : the sum you can devote each month to repaying your loan.
• The purchase budget : this includes the amount borrowed but also any deposit you may have.

For example, someone able to borrow €600,000 and holding a €100,000 deposit can consider a property project of around €700,000, excluding additional costs.

Why is it essential to know your borrowing capacity before looking for a property?

Many buyers start browsing property portals before they have assessed their real budget.

That approach can quickly become counterproductive.

By knowing your borrowing capacity precisely, you will be able to:

• target properties that are genuinely within reach;
• reassure sellers with a solid application;
• negotiate the purchase price more calmly;
• save valuable time;
• avoid a bank refusal after signing the preliminary agreement.

At Prêt Immo, this assessment is carried out free of charge before any search for financing, so that every client can move forward with a clear view of their budget.

How do Luxembourg banks calculate your borrowing capacity?

Contrary to what many imagine, banks do not simply apply a percentage to your income.

Each institution examines your situation as a whole.

The main criteria studied are in particular:

• your employment income;
• the stability of your job;
• your length of service;
• your additional income;
• your monthly charges;
• your loans in progress;
• your family composition;
• your deposit;
• the type of property financed;
• the term of credit you want.

The bank’s objective is simple: to check that you will be able to repay your loan throughout its term, even if something unexpected happens.

That is why two people on exactly the same salary can receive very different offers depending on their personal circumstances.

The income taken into account by the banks

Income is naturally one of the first things examined.

Depending on your profile, several types of income may be counted.

Salaries

For employees on permanent contracts, banks particularly value professional stability. Fixed income generally forms the basis of the calculation.

Variable income

Some banks also take into account:

• regular bonuses;
• commission;
• performance bonuses;
• recurring overtime.

Whether these count depends, however, on how long they have been paid and how regular they are.

Rental income

If you already own a property that is let, part of the rent may be included in the calculation of your borrowing capacity.

The bank generally applies a discount to allow for void periods and possible costs.

The income of the self-employed

Self-employed people can also obtain property financing. Banks then examine several sets of accounts in order to assess the stability of the business.

Preparing the application well is particularly important in this case.

Not all banks think the same way

This is a point that is often overlooked.

Every bank has its own risk policy.

Some favour:

• civil servants;
• cross-border workers;
• young professionals;
• investors;
• high earners.

Others are more flexible about the term of the loan, the deposit or the level of indebtedness.

That is precisely why it is rarely wise to approach a single bank.

By creating competition, it is sometimes possible to obtain larger financing, a better rate or more advantageous terms.

Prêt Immo’s advice

Before you even submit a loan application, have your situation reviewed by a broker. A preliminary analysis often makes it possible to identify the banks best suited to your profile and to avoid needless applications that could complicate your project.

The debt ratio in Luxembourg: an essential criterion

When you apply for a mortgage, the bank wants above all to be sure that your budget will remain balanced once your repayment is made.

To that end, it calculates what is known as the debt ratio.

This is the share of your monthly income devoted to repaying your loans.

Contrary to a widely held belief, there is no single statutory debt ratio in Luxembourg applying to every bank. Each institution has its own assessment criteria and adjusts its decision to the borrower’s profile.

Broadly speaking, banks look for a balance between the size of the repayments and the household’s level of income. They also attach great importance to disposable income after charges, that is, the sum you have available each month once all your charges are paid.

So two households on exactly the same salary can obtain different financing amounts depending on their family composition, their day-to-day spending or their existing loans.

Disposable income after charges: an indicator often more important than the debt ratio

Disposable income after charges is the budget available once the main charges have been paid.

It allows the bank to check that you will be able to continue meeting your everyday expenses:

• food;
• energy;
• insurance;
• transport;
• children’s schooling;
• leisure;
• unforeseen expenses.

The more comfortable your disposable income, the more reassuring your application.

That is why some borrowers can obtain higher financing despite a slightly higher debt ratio.

Do loans in progress reduce your borrowing capacity?

Yes.

Before granting a mortgage, the bank takes account of all your financial commitments.

The loans that most affect your borrowing capacity include in particular:

• car loans;
• personal loans;
• revolving credit;
• leases with a purchase option;
• home improvement loans.

Every monthly repayment reduces the repayment capacity you have available.

Take a simple example.

If you are already paying €450 a month for a vehicle, that sum will be included in the calculation of your indebtedness. Depending on your situation, that can mean tens of thousands of euros less borrowing capacity.

In some cases, it may be worth clearing a small loan before submitting a mortgage application.

A broker can tell you whether that strategy makes sense in your situation.

Is a deposit compulsory?

Many prospective buyers believe it is impossible to buy a property without substantial savings.

The reality is more nuanced.

Depending on your profile and the project presented, some banks may accept very high financing, or in certain situations even cover the whole purchase price.

A deposit nonetheless remains a real asset.

It makes it possible in particular:

• to reduce the amount borrowed;
• to improve the financing terms;
• to reassure the bank;
• to reduce the total cost of the credit.

Even where high financing is possible, having savings demonstrates your ability to manage your budget and sends a positive signal to the lender.

Worth knowing: financing terms vary from bank to bank and with each borrower’s situation. A tailored review remains essential to know what is genuinely possible for your project.

Can cross-border workers obtain a mortgage in Luxembourg?

Yes.

Cross-border workers make up a significant share of the borrowers supported by Prêt Immo.

Whether you live in France, Belgium or Germany while working in Luxembourg, it is entirely possible to finance a property project.

Banks will look in particular at:

• your professional stability;
• your length of service;
• your level of income;
• your family situation;
• the country in which the property is located.

Some banks are particularly used to financing cross-border workers’ projects and offer very competitive terms.

The support of a broker is precisely what allows you to identify quickly the institutions best suited to your profile.

Can the self-employed borrow easily?

Contrary to popular belief, being self-employed is in no way an obstacle to obtaining a mortgage.

The application does, however, generally require more thorough preparation.

Banks examine in particular:

• several sets of accounts;
• how turnover has developed;
• the profitability of the business;
• the stability of the income.

A well-presented application, supported by the right documents, very often leads to financing on good terms.

Are investors subject to the same criteria?

Not always.

Where a buy-to-let investment is concerned, the bank does not reason in quite the same way.

It may take into account in particular:

• the rental income expected;
• your existing property portfolio;
• your capacity to save;
• your other investments.

The aim is to assess the overall viability of your project and your ability to withstand a setback (a void period, works, and so on).

Spending that can influence your application

Beyond income and loans, banks also look at certain other factors.

For example:

• frequent overdrafts;
• poor account management;
• payment incidents;
• large spending just before the loan application;
• a recent fall in income.

These factors do not automatically lead to a refusal, but they may prompt the bank to ask for explanations or to review the amount of financing offered.

Good preparation beforehand often avoids such situations.

Prêt Immo’s advice

Every bank applies its own assessment criteria. An application refused by one institution will not necessarily be refused by another. That is precisely a broker’s role: to present your project to the banks most likely to respond favourably and to negotiate the best financing terms.

A worked example: how is borrowing capacity calculated?

Take the example of a couple wishing to buy their main residence in Luxembourg.

Situation:

• Net monthly income: €6,200
• Two dependent children
• Car loan: €320/month
• No other credit
• Deposit: €60,000

The bank will examine several factors:

• the professional stability of both borrowers;
• their length of service;
• their bank statements;
• their income;
• their monthly charges;
• their disposable income after charges;
• the size of their deposit.

Depending on each institution’s own criteria, several financing offers may be put forward.

Some banks will favour a lower repayment over a longer term, while others will accept a larger amount borrowed where the application presents limited risk.

That is why the same application frequently attracts several different offers.

At Prêt Immo, we systematically put the banks in competition in order to identify the most advantageous solution for your project.

How can you increase your borrowing capacity?

Good news: your borrowing capacity is not fixed. Several steps can improve your application before you submit a financing request.

Reduce your loans in progress

A car loan or a consumer credit directly reduces your repayment capacity.

Where possible, clearing a small loan before applying can improve your file.

Build up a deposit

Even where high financing is possible, a deposit remains a real advantage.

It allows you:

• to reduce the amount borrowed;
• to improve your profile;
• to negotiate better terms with the banks.

Avoid overdrafts

Banks generally look at your most recent bank statements.

Repeated overdrafts or payment incidents can give a negative impression of how you manage your finances.

A few months of disciplined management before applying can make the difference.

Avoid new credit

Buying a car or financing works just before a mortgage application can significantly reduce your borrowing capacity.

Where possible, it is better to wait until your property project is complete.

Prepare your application carefully

A complete file inspires confidence.

Before meeting a bank, gather in particular:

• your payslips;
• your tax assessments if required;
• your bank statements;
• proof of your savings;
• the details of the property.

A well-prepared application often speeds up the handling of your request.

Use a broker

This is probably the most effective lever.

A broker knows each bank’s criteria and knows how to present your application in its best light.

They can also negotiate:

• the interest rate;
• the arrangement fees;
• the insurance terms;
• certain conditions of the loan.

In many cases, this competition secures more advantageous financing than approaching a single bank.

The most common mistakes

Every year, many applications are delayed or weakened by mistakes that could have been avoided.

Here are the most common:

• starting viewings without knowing your budget;
• applying to a single bank;
• underestimating the additional costs;
• taking out new credit before the purchase;
• presenting an incomplete application;
• waiting until the preliminary agreement is signed before looking for financing;
• neglecting to compare offers;
• believing that all banks apply the same criteria.

Good preparation often avoids these difficulties.

Why choose Prêt Immo?

Finding the right financing is not only about obtaining a bank’s agreement.

It is also about obtaining the best terms for your situation.

By using Prêt Immo, you benefit in particular from:

• a tailored assessment of your borrowing capacity;
• support throughout your project;
• a comparison of several banks;
• a significant saving of time;
• advice suited to your personal situation.

Every project is unique. Our role is to steer you towards the most suitable solutions and to argue your case with our partner banks.

Frequently asked questions

What salary do you need to borrow in Luxembourg?

There is no universal minimum salary. The amount you can borrow also depends on your charges, your family situation, your deposit and the bank’s criteria.

Can you obtain a mortgage without a deposit?

In some situations, very high financing may be envisaged. The possibilities nonetheless depend on your profile, on the project and on each bank’s policy.

Can cross-border workers borrow in Luxembourg?

Yes. Cross-border workers can certainly obtain a mortgage. The terms vary with their professional situation and the project financed.

Are bonuses taken into account?

Where they are regular and can be evidenced, some banks may include all or part of any bonuses in the calculation of your borrowing capacity.

Does a car loan reduce my borrowing capacity?

Yes. Every loan repayment is taken into account when your application is assessed.

How long does it take to review an application?

Depending on the institution and the complexity of the project, an initial analysis can be carried out quickly where the file is complete.

Should I consult a bank before looking for a property?

It is strongly recommended to know your borrowing capacity before starting viewings, so as to target properties that genuinely match your budget.

Why do offers vary from one bank to another?

Every bank applies its own assessment criteria and its own financing policy. That is why several offers for the same application can be very different.

Is it worth using a broker?

Yes. A broker compares the offers of several banks, negotiates the financing terms and supports you through every stage of your project.

Conclusion

Knowing your borrowing capacity is far more than a simple calculation. It is the first step of a successful property project.

By planning your budget ahead, preparing your application carefully and comparing several banks, you considerably improve your chances of obtaining financing suited to your situation.

At Prêt Immo, we support every borrower with a tailored approach. Our mission is to help you understand your borrowing capacity, compare what the market offers and obtain the best terms for carrying out your property project in Luxembourg.

Would you like to know your borrowing capacity? Make an appointment with our advisers or produce an initial estimate of your financing. A tailored review will let you approach your project with complete peace of mind.