You can find your account number on your tap water bill, on your bank account statement of Waternet, or in the email or letter after you registered your address.
Read moreChat with us
Chat is available 8.00 - 20.00, Monday through Friday. The chat window will pop up automatically when one of our customer service employees is available.
Frequently asked questions
Are you moving to or out of Amsterdam? Then you need to take action for your tap water.
Find out moreView our bank account numbers. Please use a different one for each service: your tap water, water authority tax and harbour fee.
View our bank account numbersRegister the new customer. Do you have a water meter? Then the current account holder will receive a final bill.
Read moreIf you moved out of The Netherlands, you may still have to pay an outstanding amount. Please check what kind of bill you received: waterschapsbelasting (water authority tax) or drinkwater (tap water).
Read moreOther contact options
Call us
Call us on business days between 8.00 and 17.00.
normal phone rates apply
international
Average waiting time is 2 minutes
Social media
Ask your question via Facebook or Twitter on business days between 9.00 and 17.00.
We will respond within 2 hours
Send an email
Send us an email with your question.
We will respond within 5 business days
Main office address
Stichting Waternet
Korte Ouderkerkerdijk 7
1096 AC Amsterdam
Opening hours
The servicedesk for 'waterschapsbelasting' (water authority tax), 'binnenhavengeld' (Inland port dues) and tap water bills is open from 8:30 till 17:00 on business days. The servicedesk is located at our main office.