How Much Own Contribution Do You Need to Buy a House in Belgium (2026)?

In Belgium, banks in 2026 typically aim for an own contribution of at least 10-20% when purchasing a property.

• Strict minimum rule (in theory): banks are generally only allowed to finance a maximum of 90% of the purchase price of an owner-occupied home → you must pay at least 10% yourself.
• Practical rule of thumb: because you also need to pay notary fees and registration duties (roughly 12-15%), a 20% own contribution is often the most comfortable position in practice.
• Exceptions: 100% financing (without any own contribution) is still possible in exceptional cases (first-time buyers with strong guarantees, via special schemes), but it is no longer the norm.

1. What exactly is an own contribution?

An own contribution is the portion of the purchase price and associated costs that you pay from your own savings (or with help from your parents), before taking out a mortgage loan.

• This means money that does not come from a loan (no additional consumer credit).
• Banks see an own contribution as a buffer and proof of financial health → the larger your contribution, the lower the risk for the bank.
• A higher own contribution often results in a better interest rate and lower monthly repayments.

An own contribution typically comes from:

• Personal savings.
• Gifts or donations from parents.
• Equity from the sale of a previous property.

2. How much own contribution does the bank expect in 2026?

2.1 Official standard: maximum 90% of the purchase price

The National Bank of Belgium has instructed banks to be cautious with high loan-to-value ratios for owner-occupied homes:

• Standard: finance a maximum of 90% of the purchase price → at least 10% own contribution.
• Above 90% (up to 100%) is still possible, but only for a limited share of applications and under strict conditions (first-time buyers, strong incomes, additional collateral).

2.2 Practical guideline: 20% own contribution is considered "healthy"

Many banks, estate agents and mortgage advisers recommend 20% own funds:

• 10% to cover the portion the bank is not permitted to lend.
• A further 10% (or more) to cover buying costs:
• Registration duties or VAT.
• Notary fees and deed costs.
• Valuation, file and mortgage-registration fees.

In practice this often means:

• 20% own contribution is ideal,
• A minimum of 10% if you can (legally) co-finance part of the costs or make use of special schemes.

3. Concrete worked examples (2026)

3.1 Property priced at €250,000

20% own contribution rule of thumb:

• Purchase price: €250,000.
• 20% own contribution: €50,000.
• Mortgage loan: €200,000 (80%).

On top of that you still have additional costs:

• Registration duties + notary fees + miscellaneous: roughly 10-12% → €25,000-€30,000.

In a healthy scenario you therefore need approximately:

• €50,000 in savings for the purchase, plus
• €25,000-€30,000 for costs, totalling approximately €75,000-€80,000 in own funds.

3.2 Property priced at €350,000

Many articles use the example of a property around €350,000:

• Purchase price: €350,000.

Recommended 20% contribution:

• 20% = €70,000 own funds.
• Loan: €280,000 (80% loan-to-value).

Buying costs (registration + notary + miscellaneous):

• Roughly 12-14% of the purchase price = €42,000-€49,000.

Realistic total own funds required:

• €70,000 (contribution) + approximately €45,000 (costs) = approximately €115,000 required.

In practice you will find variants where the loan covers 90% and a portion of costs is partly co-financed; in that case less savings are needed, but your monthly repayment and risk both increase.

3.3 Borrowing with only 10% own contribution

Suppose: property at €300,000 and you only have €30,000 in savings (10%):

• Bank finances 90% = €270,000.
• Costs (registration, notary, etc.): still approximately €35,000-€40,000.

You are left with a shortfall of €5,000-€10,000 to cover everything, unless:

• You obtain a 100%+ costs loan (extremely exceptional).
• Your parents step in with a gift.
• You negotiate the purchase price down.

That is why a 10% own contribution is often seen as the absolute minimum threshold, while 20% is far more comfortable.

4. Can you still borrow for a house without any own contribution?

4.1 In theory: yes, but exceptionally

Articles and experts confirm that borrowing without an own contribution in 2026 is still possible, but only in specific situations:

• First-time buyers with a strong, stable income.
• Additional guarantees (supplementary mortgage on the parents' home, surety, savings held at the same bank).
• Specific products (such as social lending schemes offered by regional housing funds) aimed at households with limited income.

4.2 In practice: banks are very strict

• Banks have received guidance from the National Bank of Belgium to limit high loan-to-value ratios (95-100%).
• Applications without an own contribution are screened very rigorously for income, job security and debt service ratio (DSR/DSTI).

Conclusion: borrowing without an own contribution is still possible, but it is very much the exception, not the starting point.

5. How much own contribution makes sense for you?

5.1 Minimum vs. ideal own contribution

5.2 Impact on your monthly repayment and interest rate

• The higher your own contribution, the lower your loan-to-value ratio → banks will often offer you a better interest rate.
• A smaller loan means a lower monthly repayment, freeing up budget for renovation, furniture and energy costs.

6. Tips to increase or make smart use of your own contribution

• Start saving early: putting aside €300-€500 a month for a few years quickly builds up a solid reserve.
• Structure gifts properly: parents who want to help can do so via a bank gift or a notarised donation - this can also be tax-efficient as part of estate planning.
• Look at the total cost, not just the purchase price: do not underestimate registration duties, notary fees, moving costs, furnishing and renovation works.
• Run a simulation with a mortgage calculator: tools (such as those available on your own site) clearly show the effect of a larger own contribution on your monthly repayment and interest rate.

Summary - how much own contribution do you need?

• In 2026, banks generally aim for an own contribution of at least 10%, but 20% is in practice the safest rule of thumb for buying a house in Belgium.
• On top of that you need a further 10-15% of the purchase price to cover costs (registration duties, notary, file fees...), unless you can co-finance part of these or use special schemes.
• 100% financing without an own contribution is still possible, but only in exceptional cases and often via specific institutions or with additional guarantees.

Anyone looking to buy a house should therefore ideally budget for 20% own contribution plus costs, and then use a reliable mortgage calculator and collect multiple bank quotes to find the most feasible and advantageous deal.