Property Tax PaymentsProperty taxes may be paid in 2 installments. The 1st half is due September 1 and becomes delinquent October 1; the 2nd half is due March 1 and becomes delinquent April 1. However, if last day of September or March is a Saturday or Sunday, the amount due becomes delinquent the second business day of October or April, respectively.
InterestDelinquent interest accrues at the rate of 1.5% per month, rounded to the nearest dollar with a minimum of $1. Property sold at tax sale collects 2% per month interest.
Payments may be mailed to:
Pay by Mail
The Black Hawk County Treasurer
316 E 5th Street
Waterloo, IA 50703.
A secured drop box available for payments is located in the parking lot near the northeast corner of the courthouse. Discover, MasterCard or Visa credit card payments are accepted for taxes and motor vehicle transactions. There is a 2.25% plus charge per transaction to use the credit card on-line or in the office. At the Courthouse only debit cards are accepted; a $2 charge will be assessed to use the debit card.