Selling your property for more than you paid does not automatically trigger tax. In Belgium, capital gains on real estate are taxed only in specific cases, designed to target quick, speculative resale - not the normal appreciation of a home lived in for years.
The main residence: exempt
The resale of your main residence - the home where you are officially registered - is in principle exempt, whatever the gain realised. This is the most common case, and the most favourable. Conditions on the length of occupation apply: the property must have been your main residence for a minimum period before the sale. This is the point to have confirmed if you sell shortly after moving in.
Another built property: the five-year rule
For a built property that is not your main residence - a second home, an inherited property you resell, an investment - the criterion is the holding period:
- resold within five years of its acquisition, the capital gain is taxed;
- resold after five years, it is exempt.
The idea is to distinguish the long-term investor from the quick reseller. The acquisition date taken into account and the mode of acquisition (purchase, gift, inheritance) affect the calculation: a recent gift followed by a resale does not follow the same rules as an old purchase.
Land: the eight-year rule
Land follows a separate, longer regime. The capital gain remains taxable for longer after the purchase, and full exemption is only acquired beyond eight years of holding, with a rate that decreases in steps over time. Selling land bought recently therefore warrants a systematic prior check.
What enters the calculation
The taxable capital gain is not simply "sale price minus purchase price". Account is taken of the acquisition costs paid at the time and of certain expenditure on works, which increase the reference purchase price and thus reduce the taxable gain. Keeping the deed and works invoices has a concrete value here.
To check before you sell
Exact rates, periods, exemption conditions and calculation methods change and carry exceptions. Before reselling a property you have held only briefly, have your situation confirmed by the FPS Finance or your notary: the gap between an exempt sale and a taxed one can represent a significant share of the gain. And to know whether there really is a capital gain, you still need a realistic sale price: placing the property in the current market of its municipality is the prerequisite for any calculation.