HomeArrange and applyWater board taxesPaying taxesPaying taxesDue date(s) on the tax assessmentThe tax must be paid by the due date, unless you instalments in instalments via direct debit. Payment in instalments via direct debitWould you like to pay the assessment in instalments? This can be done by authorising a direct debit. Number of instalments for direct debitHHNK will write off your tax assessment amount in a maximum of ten instalments. Failed direct debit (reversal)If it is not possible to debit the monthly amount, the direct debit will fail. Refund of automatically collected instalmentsYou have the right to request instalments for automatically debited instalments . Payment arrangementAre you truly unable to pay by direct debit? If so, you can request a payment arrangement. OverpaidIt may happen that you have paid too much. We will refund the overpaid amount. Account number HHNKWhat is HHNK's account number? Phishing via email or WhatsAppRecognize emails from HHNK and avoid being scammed.