Buying Property in Belgium From Abroad: Protect the Offer and Compromis

This guide does not claim that every foreign person, entity, or transaction is eligible to buy every Belgian property. Before making an offer, instruct a Belgian notary to confirm your legal capacity, marital or ownership structure, source-of-funds and sanctions checks, and any property-specific restriction. The avoidable risk is signing a binding offer or compromis before finance and due diligence are protected.

Instruct your own notary before signing

Belgium's official sale-agreement guidance explains that a sale is final once the parties agree on the property and price, and that a signed preliminary agreement is binding. Do not treat the compromis as a reservation form.

Ask the notary to review the offer and compromis before signature. The document should identify the property, price, deposit, completion date, fixtures, title and planning conditions, and a workable finance condition. Define the loan amount, application deadline, acceptable refusal evidence, and consequence of failure rather than writing only “subject to mortgage.”

Belgium's notarial-deed guidance says the authentic deed is required to make the transfer effective against third parties and that buyer and seller may use different notaries without increasing total notarial fees. Your notary should answer the eligibility and ownership-structure question before the agreement binds you.

Budget regional duty, not one Belgian rate

Registration duty is regional. FPS Finance states that the regions determine the base, rate, and reductions and that some new-home sales use VAT instead. Ask the notary for a written estimate based on region, property type, value, intended use, existing ownership, and any residence or renovation condition.

Do not claim a relief until the notary confirms both initial qualification and the deadline for satisfying any occupancy condition. A foreign address, income, or mortgage can also change the lender's underwriting without changing the tax rule.

Build the finance and due-diligence file

Prepare passports and status evidence, civil-status and marital-regime documents, tax returns, employment or business income, debts, bank statements, deposit provenance, and intended ownership and use. A lender's approval in principle is not the final loan deed. The amount of equity, eligible income, and product availability are lender-specific and are not compared here.

Have the notary verify title, cadastral data, mortgages or attachments, planning and pre-emption information, tenancy, co-ownership accounts and planned works, and the required energy, soil, or regional certificates. Belgium's land-use-planning guidance explains why planning and pre-emption information belongs in the pre-signing file. Commission a technical inspection for condition questions outside the legal file.

Purchase and residence are separate decisions

The official property pages do not create an immigration category. Belgium's Immigration Office states that a third-country national seeking more than 90 days generally needs the applicable authorization to stay or another specific work, study, family, or residence basis. A deed is not evidence that a visa, residence card, or work right has been granted.

That conclusion is deliberately narrow: it does not say who may buy; it says the purchase document and the immigration authorization solve different legal questions. Ask the notary about acquisition eligibility and the Immigration Office or qualified adviser about residence eligibility.

The defensible order is: notary eligibility review, finance and regional-tax estimate, conditional offer or compromis, legal and technical checks, final loan, authentic deed, registration, insurance and post-completion obligations. Do not sign until the first three are documented.

Before the Belgian offer or compromis becomes binding, adapt the Luxembourg mortgage affordability stress test using Belgian transaction costs and loan terms.