Water authority tax rates
There are 3 different types of water authority tax: a water system charge, a water treatment charge and a pollution charge. The type of taxes you must pay depends on your specific situation. View the rates and examples for 4 situations.
Water authority tax rates 2026
See the 2026 water authority tax rates in the table below.
| Type of tax (in Dutch) | Type of tax (in English) | 2026 rates |
|---|---|---|
| Watersysteemheffing ingezetenen | Resident water system charge | € 186.85 per home |
| Watersysteemheffing gebouwd woningen | Water system charge for buildings residential properties | 0.017654% of the WOZ value (You are leaving this website) |
| Watersysteemheffing gebouwd niet woningen | Water system chare for buildings non residential properties | 0.018965 of the WOZ value (You are leaving this website) |
| Watersysteemheffing ongebouwd | Water system charge for land without buildings | € 129.65 per hectare (10,000 m2) |
| Watersysteemheffing wegen | Water system charge for roads | € 259.30 per hectare (10,000 m2) |
| Watersysteemheffing natuurterreinen | Water system charge for nature areas | € 5.82 per hectare (10,000 m2) |
| Zuiveringsheffing | Water treatment charge | € 92.79 per pollution unit (ve)* |
| Verontreinigingsheffing | Pollution charge | € 92.79 per pollution unit (ve)* |
* ve is a pollution unit. People who live alone pay for 1 ve. Households with more than 1 resident pay for 3 ve.
Examples for your situation
How much water authority tax you will pay in 2026 depends on your situation. View the examples below to see how much you will pay. And what the difference is with 2025.
1. You are a tenant and you live alone
Do you live alone? Than you must pay a water treatment charge of 1 pollution unit. You must also pay the water system charge for residents.
For 2026 you pay 15 euro per year less:
- Resident water system charge: € 186.85
- Water treatment charge: € 92.79
Total: € 279.64 (was € 294.52)
2. You are a tenant and you live together
Do you live with 2 or more people? Than you pay a water treatment charge for 3 pollution units. Even when your household consists of just 2 people (read why). You must also pay the water system charge for residents.
For 2026 you pay 15 euro per year less:
- Resident water system charge: € 186.85
- Water treatment charge: € 278,37
Total: € 465.22 (was € 480.10)
3. You live alone and you own your home
Do you live alone? Than you must pay a water treatment charge of 1 pollution unit. You must also pay the water system charge for residents. And as a home owner, you must also pay the water system charge for buildings. In this example the WOZ value of your home is 444.000 euros.
For 2026 you pay 17 euro per year less:
- Resident water system charge: € 186.85
- Water system charge for buildings: € 78.38
- Water treatment charge: € 92.79
Total: € 358.02 (was € 375.36)
4. You have a family with 2 children and you own your home
Do you live with 2 or more people? Than you pay a water treatment charge for 3 pollution units. Even when your household consists of just 2 people (read why) You must also pay the water system charge for residents. And as a home owner, you must also pay the water system charge for buildings. In this example the WOZ value of your home is 444.000 euros.
For 2026 you pay 17 euro per year less:
- Resident water system charge: € 186.85
- Water system charge for buildings: € 78.38
- Water treatment charge: € 278.37
Total: € 543.60 (was € 560.76)
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