Budget 4โ15% on top of the price for a resale apartment. On a 60 mยฒ apartment in Brussels (about โฌ270,000) that is roughly โฌ10,800โโฌ40,500.
For private residential lets, non-residents are generally taxed on the indexed cadastral income (uplifted by a legal coefficient) rather than actual rent, at progressive non-resident income tax rates.
Last reviewed 2026-10. General information, not tax or legal advice: rates change and often depend on region and buyer status, so confirm with a local notary, lawyer or tax adviser. Sources: Grant Thornton Belgium: Real estate taxes in Belgium in 2026, CMS: Belgium's regions pass new registration tax rates.