Account number HHNK

For the payment of water board tax, HHNK has an account number with the Dutch Water Board Bank in The Hague:

  • NL20 NWAB 0636 7586 80

TIP!
Don't forget to mention the claim number of the tax assessment when you transfer money to us.

Paying from abroad

Would you like to pay from a foreign bank account? If so, your bank may ask for the BIC of the HHNK bank when making the payment.
You can use the following details for the payment:

  • BIC number: NWABNL2G

We also have other account numbers. The message you received from us states which account number you should use. Always check whether the account number on the message matches the HHNK account numbers listed here.

ING account number for water board tax has been closed

The account number NL20 INGB 0001 2929 61 has been closed. You can no longer transfer funds to this account number. 

For all your water board tax payments, you can use:

  • NL NWAB 0636 7586 80

Frequently asked questions

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

Only one IBAN can be used for direct debit. If you change your account number, this change will apply to all your authorisations granted to the Tax and Customs Administration. It is not possible, for example, to have the purification levy debited from an IBAN other than the one from which the water board tax assessment is debited.

Change account number

By letter  

Send your request to: 

Hollands Noorderkwartier Water Board (HHNK)
Collection Team
Postbus
1700 AA Heerhugowaard. 

Don't forget to include the following information 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 place of residence
  • your phone number
  • your email address

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

There are a number of things you need to bear in mind when entering or changing your bank account number.

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