A recent article from “De Tijd” shows that the average purchase price of a holiday home abroad rose by 12% to EUR 323,853 in 2023 (compared to EUR 288,592 in 2022). To make their investment even more profitable, some owners are considering renting out their holiday home, mostly furnished. This is often done through an online platform, such as Airbnb. For holiday homes located abroad, the rental income for the Belgian owner is often taxable in the country where the holiday home is located. While this rental income will also have to be reported in the Belgian tax return, it may benefit from an exemption from Belgian taxes (subject to progression reservation). This division of taxing powers between various countries is based on so-called double taxation treaties. Nevertheless, the Belgian tax authorities are still trying to get a piece of the cake.

Since 2021, online platforms, such as Airbnb, are obliged to exchange data with the Belgian tax authorities. Based on this data exchange, the Belgian tax authorities have launched a general control action.
The starting point of this action is that in the case of a furnished rental, 40% of the rental income received is taxable in Belgium as movable income anyway. It follows that the rental income received could benefit from a tax exemption in Belgium only to the extent of the remaining 60%.
Such a split is supported by Belgian tax law on the furnished rental of a property. However, the application of this split to foreign holiday homes violates double taxation treaties.
Indeed, these double tax treaties are based on the general principle that income received by a resident of country A from immovable property located in country B is taxable in country B. It clarifies that the expression ‘immovable property’ has the meaning attributed to it by the law of the country where the property in question is located. Finally, it is explained that ‘immovable property’ includes, in any case, the property belonging to the immovable property.
The law of the country where the property in question is located refers primarily to the internal tax law of that country. In the absence of a tax definition, a non-tax definition of that country can also be used.
Under Belgian law, for example, there is no specific tax definition of the term ‘immovable property’, hence the civil law definition must be used. According to that definition, property can be immovable by its nature, by incorporation, by its purpose or by the object to which it relates.
Authoritative legal doctrine refers to the furnishing of a residential property as an example of immovable property by destination, among others. This then confirms that if the property is rented out together with the furniture, the furniture becomes immovable by destination in order to preserve the economic unity of the operation.
A similar interpretation of the term ‘immovable property’, including ‘immovable property by destination’ is used in several (mostly civil law) European countries, including, for example, France, Spain, Italy and Portugal.
Thus, in the case of a holiday home located in one of these countries, the Belgian tax authorities will have to take into account the internal qualification in these countries of the co-rented furniture as being immovable (by destination). For the sake of completeness, reference can also be made to the clarification in the double taxation treaties that the expression ‘immovable property’ includes in any case the property belonging to the immovable property.
It then follows that rental income derived from a foreign holiday home is fully taxable in the country where the holiday home is located and must be fully exempt from taxation in Belgium (subject to progression reservation).
This position has been confirmed by a judgment concerning a furnished rental of a holiday home in Greece. Referring to Greek tax law and the double taxation treaty concluded between Belgium and Greece, this judgment confirms that Greece, and not Belgium, has tax jurisdiction over the rental income, including that generated by the furniture made available by the taxpayers to the tenants.
However, this judgment was appealed by the tax authorities, which means that the Brussels Court of Appeal will have to rule on the matter. It is common knowledge however that this Court of Appeal is facing a huge backlog of cases, which means that it will take a long time before it can deliver its judgment.
In the meantime, tax auditors are instructed to maintain their position and consequently proceed with a valuation of 40% of the foreign rental income received.
However, taxpayers facing this should not abide to this.
Would you like to receive more information on this subject or would you like to be assisted by Andersen’s specialists ? Do not hesitate to contact us on +32 (0)2 747 40 07 or via info@be.Andersen.com.
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