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What is the so called WOZ value of my house?

What is the WOZ?
The WOZ value is estimated every year by your municipality. They send you a statement. The WOZ value is also mentioned on the local property tax assessments. If you can't find anything contact the local town hall. If you have bought the house during the year the WOZ statement may have been sent to the previous owners in the period they owned the house. You may want to contact them in that situation.  
Why is the WOZ important?
The WOZ value is used for certain tax purposes:
1. as a basis for the calculation of the local property tax;
2. to calculate the income related to your property in your income tax return.
Ad 1.
Local property tax or real estate tax is known in the Netherlands as 'onroerende-zaakbelasting'. This tax is paid by the owner of a house.
Ad 2.
If you own a property which is your principle residence you must pay tax on the so called deemed rental value ("eigenwoningforfait") which is based on the WOZ value of the property. This deemed rental value is a percentage of the WOZ value. Due to the deduction of the paid mortgage interest the income related to your principle residence is most of the times a negative amount. 
What if I don't agree with the WOZ value? 
If you don't agree with the WOZ value you should object within 6 weeks after the statement has been issued by the municipality.
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Comments (3)
Comment by Stefan on Mon, Aug 11th, 2014 at 8:45 PM
A general question about this. If you purchase a property significantly lower than the WOZ value, can you get the WOZ value changed?
Comment by Arjan Enneman on Wed, Jan 21st, 2015 at 12:20 AM
You can object against the WOZ value. But this can only be done once you receive the annual confirmation of the WOZ value from the municipality. During the year or when the house is bought it is not possible to get the WOZ value adjusted.
Comment by Filip Djagarov on Sun, Sep 4th, 2016 at 3:10 AM
WOZ value is changed automatically after every sale of this property. In specific databases (like kadasterdata) one can see the WOZ value as well as the day when it was last time changed.
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