Furnished Property Abroad: Belgian Tax Rules
Belgian residents who rent out a furnished property abroad are increasingly receiving questions from the Belgian tax authorities. The dispute often concerns the furniture: may Belgium tax part of the rent as movable income, even when a tax treaty assigns the taxation of income from the foreign property to the country where that property is located?
The issue in plain language
Imagine that you live in Belgium and own a furnished apartment, villa or holiday home in another country. You rent it to private guests, possibly through an online platform. In the country where the property is located, you may already have reporting and tax obligations. You must also report the foreign property in your Belgian personal income tax return.
Where Belgium has concluded a double tax treaty with the country concerned, income from immovable property is generally taxable in the country where the property is located. Belgium normally exempts the relevant income, while taking it into account to determine the tax rate applicable to other Belgian-taxable income. This is known as an exemption with progression.
The complication arises because a furnished letting includes both a building and furniture. Under the Belgian domestic approach to furnished rentals, a contract without a specific allocation is generally split into 60% for the property and 40% for the furniture. The net income attributed to the furniture is calculated after a 50% lump-sum expense deduction and is, in principle, taxed at 30% as movable income.
The Belgian tax authorities have sought to apply this split to furnished properties located abroad. Their position is that the treaty exemption covers the building, but not necessarily the furniture. This can result in a Belgian assessment on part of the actual rent, even though the property itself is situated and taxed abroad.
Why online rental platforms increase visibility
Online platforms exchange information with tax authorities under increasingly extensive reporting rules. This makes cross-border short-term rentals more visible and allows the Belgian tax authorities to compare platform data with the amounts and qualifications used in personal income tax returns.
A request for information may cover the properties offered, ownership, rental periods, gross receipts, payment flows, the contractual split between the property and furniture, and the services provided to guests. It may also ask whether the activity is private or professional and whether income reported by the platform partly belongs to another owner or host.
Why the Belgian position can be challenged
The domestic 60/40 allocation does not automatically settle the treaty question. Many tax treaties provide that the meaning of “immovable property” is determined by the law of the country where the property is situated. They may also extend the concept to property that forms part of, or belongs to, the immovable property.
In civil-law systems, furniture allocated to the use and economic operation of a property may, depending on the applicable local law and the facts, be treated as immovable by destination. If the furniture falls within the treaty concept of immovable property, there is a strong argument that the corresponding rental income follows the same treaty treatment as the building. Belgium should then not unilaterally reclassify this part as Belgian-taxable movable income.
Recent case law has provided support for taxpayers in this debate. However, the outcome remains dependent on the wording of the applicable treaty, the law of the country where the property is located, the rental arrangement and the evidence available. A favourable judgment in one case should therefore not be treated as an automatic exemption in every situation.
What is the potential impact for the owner?
The immediate impact may be an additional Belgian assessment on part of the gross rent, together with possible interest. The financial exposure can be significant where the property generates substantial short-term rental income.
There is also a compliance burden. Owners may need to reconcile platform statements with bank receipts, produce rental agreements, explain the services offered and demonstrate how the letting is organised.
The nature and frequency of the activity also matter. A private letting without extensive services may be analysed differently from an organised activity involving frequent rentals, active management and hotel-like services. Depending on the facts, questions can arise not only about immovable and movable income, but also about professional income, VAT and local obligations in the country where the property is located.
What should you do if you own a furnished property abroad?
Do not assume that the platform statement equals your personal taxable income, or that the Belgian 60/40 split always determines the treaty result. Keep a complete file containing the title of ownership, the rental agreement or platform terms, annual booking and payment reports, bank statements, invoices, details of the furniture, information on guest services, foreign tax returns and proof of foreign tax paid.
If you receive a request for information or an assessment, the response should be consistent across the facts, domestic Belgian law, the law of the property country and the applicable tax treaty. Procedural deadlines should be monitored carefully.
Both elements are generally calculated and paid together with the annual double holiday pay.
For international employers, this is an important consideration because bonus schemes and commission plans may create additional holiday pay obligations in Belgium.
Key takeaway
Foreign furnished rental income sits at the intersection of Belgian domestic tax law, foreign property law and double tax treaties. The Belgian tax authorities may try to tax part of the rent as income from furniture, but that approach can be open to challenge. A country-specific review and a well-documented file are essential before accepting or contesting an assessment.
This article provides general information only. The correct treatment depends on the applicable treaty, local law and the specific facts. Individual advice should be obtained before filing a return or responding to the tax authorities.