Account number HHNK

To pay the water board tax, HHNK has an account number at the Nederlandse Waterschapsbank in The Hague:

  • NL20 NWAB 0636 7586 80

TIP!
Remember to include the assessment claim number when you transfer money to us.

Paying from abroad

Do you want to pay from a foreign bank account? If so, your bank may require the BIC of HHNK's bank when making the payment.
You can then use the information below for the payment:

  • BIC number: NWABNL2G

We also have other account numbers. The message you received from us will tell you which account number to use. Always check that the account number on the message matches HHNK's account numbers listed here.

Paying online through your own bank

Online payments and payments through a payment link sent by HHNK go through HHNK's ING account number:

  • NL20 INGB 0001 2929 61

Frequently Asked Questions

How do I change my bank account number for direct debit?

Only 1 IBAN can be used for direct debits. If you change the account number, this change will apply to all the authorizations you have granted to Belastingzaken. It is not possible, for example, to have the Discharge Tax debited from another IBAN than the one from which the Water Board Tax assessment notice is debited.

Change account number

By letter  

Send your inquiry to: 

Hoogheemraadschap Hollands Noorderkwartier (HHNK)
Team Invordering
Postbus 29
1700 AA Heerhugowaard. 

Please remember to include the information below in your letter:

  • the old account number
  • the new account number
  • the date on which the change is to take effect
  • the claim number of the assessment
  • your name
  • the address
  • your residence
  • your phone number
  • your email address

I am unable to enter or change my IBAN account number in My HHNK.

Before entering or changing your bank account number, there are a few things you need to be aware of.

  • Use capital letters.
  • Do not use dashes or other characters. For example: NL20NWAB0636758680.