In short
In Belgium, selling a property at a profit is not always taxed. For a built property resold less than 5 years after its purchase, the capital gain (plus-value / meerwaarde) may be taxed at 16.5%. Undeveloped land is taxed at 33% if resold within the first 5 years, and at 16.5% between the 5th and the 8th year. The house you occupy as your family home is exempt. Speculation is taxed at 33%. The information below comes from notaire.be. For the tax texts themselves, refer to FPS Finance.
A built property resold within 5 years
The basic rule: the tax applies “only if there is a period of less than 5 years between the two transactions”. The dates used are those of the notarial deeds of purchase and sale, not those of the sale agreements (compromis).
The capital gain is taxed at 16.5%, whatever the amount of your other income. Municipal surcharges and the crisis contribution come on top. It is declared in your personal income tax return for the year following the sale.
If the seller is not a Belgian resident, the notary withholds the tax and pays it over to the tax administration.
Property received as a gift
If you received the property as a gift, the tax may also apply, when both conditions are met:
- no more than 3 years between the gift and the resale;
- no more than 5 years between the donor’s purchase and the resale.
Property received through an inheritance is not covered by this rule, according to notaire.be. See also our guide on gifting property.
The family home exemption
The tax does not cover, says notaire.be, “the dwelling house occupied by the seller as a family home”. If you sell the home where you lived, the capital gain is therefore not taxed on this basis. The precise conditions (length of occupation, outbuildings, garden) are not detailed in the pages consulted: ask the notary or the tax administration how your situation is assessed.
Other exemptions exist according to the same source:
- sales of property belonging to minors or persons treated as such;
- capital gains made on an expropriation in the public interest.
Undeveloped land
For land, two periods apply:
| Resale | Capital gain rate |
|---|---|
| Within the first 5 years | 33% |
| Between the 5th and the 8th year | 16.5% |
The notaire.be pages consulted do not provide for this type of taxation beyond 8 years. For land held longer, still check your file with a notary.
Speculation: 33%
A capital gain arising from a speculative transaction is taxed at 33%. This means profits drawn from “risky” management, outside any professional activity. The administration judges this on several criteria: the notary does not list them on the page consulted. If you buy and resell often, talk to a professional before signing.
How the capital gain is calculated
The capital gain is the difference between:
- the purchase price, that is the price paid plus the costs actually paid;
- the resale price, minus the costs of sale.
Notaire.be gives a few pointers for the purchase price:
- costs can be set at a flat rate of 25% of the price, increased by 5% per full year elapsed;
- works carried out by registered contractors can be added;
- works carried out by the owner, their family or informal labour do not count.
If the registration administration values the property above the sale price, that value is used.
Remember the principle: the higher the justified costs and works, the lower the taxable capital gain. So keep your invoices from registered contractors and your statements of costs.
When should you worry about it?
Ask yourself three questions before signing: how long has the property been yours, how did you obtain it (purchase, gift, inheritance), and did you occupy it as your family home? If you bought less than 5 years ago and the property was not your home, the tax may apply. The relevant dates are those of the deeds: if a resale comes close to the fifth anniversary of the purchase deed, waiting a few weeks can change the outcome. Talk to the notary before setting the date of the deed.
What it costs
At 16.5%, a taxable capital gain of €10,000 gives €1,650 of basic tax, before surcharges and the crisis contribution. At 33%, the same capital gain gives €3,300. These calculations are simple: they show the order of magnitude, not your bill. To compare with what the buyer pays, see our purchase costs.
Which professional to consult
The notary knows the capital gains rules and points them out at the time of the sale. An accountant or tax adviser can prepare your return. If your situation is unusual (gift, inheritance, land, repeated sales), get advice before the sale agreement. For the course of a sale, see the steps to sell your house.
Frequently asked questions
Is my main residence taxed?
No. Notaire.be states that the tax does not cover the house occupied by the seller as a family home.
Is inherited property concerned?
According to notaire.be, the 5-year rule covers purchase and gift, not inheritance. See selling an inherited property.
Which dates count for the 5 years?
The dates of the notarial deeds of purchase and resale, not those of the sale agreements.
What is the rate on land?
33% within the first 5 years, 16.5% between the 5th and the 8th year.
Where is the capital gain declared?
In the personal income tax return for the year following the sale.
General information drawn from the official sources cited and dated on this page. It is not legal, tax or financial advice: for your own situation, ask a licensed professional.
More guides on selling
- Electrical inspection when selling a house in Belgium
- Heating oil tank: obligations when selling
- Post-intervention file (DIU) when selling in Belgium
- Selling a jointly owned or inherited property in Belgium
- Selling through an estate agent: the brokerage contract
- Selling your home in Belgium: steps and documents
- Woningpas: the digital passport of your home in Flanders
Sources
- Taxes sur les plus-values immobilières (notaire.be) (consulted 13 October 2026)
- Taxes sur les plus-values immobilières (notaire.be, rubrique frais liés à l'achat) (consulted 13 October 2026)