What is the WOZ value — and why is it often too high?
The WOZ value drives your OZB, eigenwoningforfait and waterschap tax. Set too high? Object within 6 weeks — free, often successful.
The WOZ value (Property Valuation Act) is a market value of your property set by your municipality as of January 1 of the prior year. It drives: (1) OZB (municipal property tax), (2) eigenwoningforfait in box 1 of income tax, (3) water-board tax, (4) wealth tax in box 3 (indirectly via WEV). Over-valuation is common — municipalities use mass-appraisal models that miss individual factors (deferred maintenance, noisy location, unfavourable orientation). Objection within 6 weeks of WOZ decision date stamp — usually issued in February/March. Substantiation: comparable nearby sale prices (land registry), appraisal report, photos of defects. Success rate: 40-60% on well-founded objections, average reduction €15,000-€40,000 = €100-300 less OZB + lower income tax.