Free calculator

Registration duty calculator

Work out the registration duty owed on a property purchase, and see the reduced rate for a sole main residence.

Belgium
The reduced rate requires you to own no other residential property, and to move your registered address there within a few years.

This calculator is informational only, not legal or tax advice. Rates change; always verify the current rate with your notary or the regional tax administration before relying on this figure.

PropertyOS keeps every property's costs in one place

Track acquisition costs, cadastral income and everything else per property, for free, in beta.

Get started

Frequently asked questions

12% in Flanders, and 12.5% in Brussels and Wallonia, on the purchase price (or market value if higher).

Flanders reduces the rate to 2% and Wallonia to 3% for a buyer's sole and only home. Brussels instead exempts the first €200,000 of the price from duty (the "abattement"), for purchases up to €600,000 — so the 12.5% rate still applies, just on a smaller taxable base.

If you don't register your main residence there in time (typically within 2-3 years) or you owned another home when you bought it, the tax authority reclaims the difference between the reduced and standard rate, plus interest.

No — this calculator only covers a natural person buying an existing home. Building land, non-residential property, and split or company purchases follow different rules.