Notary fees when selling a house: what does the seller pay in Belgium?

When you sell a property, the notary fees involved in selling a house often only come into view at the very end of the process. Yet it is smart to factor them in from the outset, because they directly affect how much you keep net after the sale. In Belgium the rules are fairly clear: the buyer generally bears the largest share of the acquisition costs, but as a seller you will also face certain notarial and administrative costs in specific situations.

Anyone planning to sell a home in 2025 or 2026 will also notice that financial margins are tightening. The property market is more stable than during the years of extreme price increases, which makes an accurate estimate of your proceeds more important than ever. It is therefore worth looking not only at the asking price, but also at all the costs that will be deducted from it.

What do notary fees when selling a house actually cover?

The term notary fees when selling a house is often used as a catch-all for several different items. In practice it usually refers to a combination of the notary's professional fee, administrative costs, searches, VAT and sometimes additional charges such as the release of a mortgage registration. The total amount therefore depends heavily on the specifics of the sale.

Many sellers are surprised to learn that they too have costs to bear. The seller must have certain documents obtained, participate in the legal preparation of the transfer and, where applicable, have old securities lifted. The cost also varies depending on whether there is still a loan outstanding on the property.

What does the seller pay?

In a standard sale, the main costs for the seller are the notarial file fees and, where applicable, the costs for the release of a mortgage. The notary handles the administrative processing of the file, verifies legal details and ensures that ownership can be correctly transferred. Part of the bill therefore consists of fixed administrative costs and part of a professional fee that scales with the value of the transaction.

Additional costs may arise when the file is more complex - for example a sale of jointly owned property, an inheritance, a divorce, or a property encumbered by a mortgage registration. In such cases the bill is often higher because the notary has to do extra work.

How much do these costs amount to?

The notary fees when selling a house are not the same in every file, but in most cases the total cost for the seller runs from a few hundred to well over a thousand euros. For a straightforward sale with no outstanding mortgage the amount is generally relatively modest. As soon as a loan needs to be discharged, the total rises more quickly.

What matters most is that these costs do not increase in a linear way with the sale price. The notary's fee is calculated in brackets and is therefore degressive. The difference between a property worth €250,000 and one worth €350,000 is thus smaller than many sellers expect. At the same time, administrative costs and VAT remain a fixed element of the overall picture.

Difference between buyer and seller

Many sellers confuse purchase costs with sale costs. That is understandable, since in everyday language all notarial costs are often lumped together. The distinction is nonetheless important: on the buyer's side, it is the buyer who typically pays the registration duties - whose rate varies by region and personal circumstances - as well as the costs of the purchase deed, whereas the seller is primarily responsible for the costs needed to make the property legally "free" and transferable.

This means that the notary in a sale is not merely a formality, but an essential link in the legal settlement. For the seller it is therefore wise to ask in advance exactly which costs will fall on them, so that the net proceeds of the sale do not turn out to be lower than expected.

The impact of an outstanding loan

If you still have a mortgage running on the property you are selling, that loan will often need to be settled or closed. In that case, additional costs arise for the discharge of the mortgage registration. This cost is frequently overlooked in initial calculations, yet it can have a noticeable impact on the final amount.

It is therefore useful not to consider your sale in isolation from your financing. A loan simulator can help you estimate how a new purchase or a refinancing fits within your budget. Particularly when you sell first and buy again afterwards, the financial sequence of those steps makes a significant difference.

Why the net proceeds are what really matter

When selling, it is not just about the asking price - it is above all about what you are left with after all costs. A property may appear to sell for an attractive sum on paper, while the final proceeds disappoint because of notary fees, loan repayments, mandatory certificates and potential estate-agent fees. A realistic net calculation is therefore indispensable.

For sellers this is especially important in a market where buyers have become more selective. Pricing your property correctly increases the chance of a smooth sale and avoids unnecessary price reductions. Good preparation therefore does not start when offers come in, but at the stage of mapping out the cost structure around the sale.

What to sort out in advance

Before selling a property, it is wise to first check which documents and costs are required. Think about the notarial preparation, any mortgage settlement and the necessary certificates - including the energy performance certificate. The earlier you draw up that list, the better you will be able to estimate what the sale will actually yield.

It also helps to compare different professionals. Not every seller faces the same situation, and not every sale calls for the same approach. If you are unsure about your selling strategy or the market value of your property, it can be worthwhile to start by requesting a free valuation. That way you are working from a well-founded price estimate rather than an intuitive figure.

Notary fees on the Belgian property market

In Belgium the role of the notary remains particularly important, both in purchases and in sales. This is logical: property transactions are legally and financially complex, and a mistake can prove costly later on. Notary fees are therefore not a superfluous burden, but part of the necessary legal certainty surrounding a transfer of ownership.

At the same time, sellers need to understand that the market context also determines how heavily those costs weigh. In a more balanced market - where buyers are more selective and selling periods can stretch out - the gap between the gross price and the net proceeds becomes even more relevant. Sellers who do the sums in advance sell with greater peace of mind and fewer unpleasant surprises.

A practical example

Suppose you are selling a family home that still has a mortgage registration attached to it. You will then pay not only the usual administrative and notarial costs, but potentially also extra costs for the discharge of that loan. In such a file the total can easily be higher than in a straightforward sale with no outstanding financing.

That does not mean selling has to be expensive or complicated, but it does mean you are better off starting well prepared. A seller who maps out the costs in advance can negotiate more realistically and knows straight away what amount will effectively remain after the deed is signed. That is often more valuable than focusing solely on achieving the highest possible asking price.

In conclusion

The notary fees when selling a house are generally manageable for sellers in Belgium, but they do deserve careful attention. They consist of more than one item and can increase as soon as a loan, a complex ownership situation or additional administrative work comes into play. Understanding these costs in advance leads to better decisions about price, timing and net proceeds.

Would you like to assess your sale correctly right now and find out what your property is worth? Request a free valuation and take the first step towards a realistic sale.