Reminder: Johnson County property taxes must be paid by Oct. 2, 2023; late payment penalties begin Oct. 3, 2023.
The first installment of Johnson County property and mobile home taxes was due on Friday, Sept. 1, 2023. Payments must be delivered to the Treasurer’s Office, paid online, or postmarked by Oct. 2, 2023, to avoid a 1 ½ percent monthly penalty that will begin on Sunday, Oct. 3, 2023.
In-person payments must be made at the Treasurer’s Office, located on the first floor of the Johnson County Administration Building, 913 S. Dubuque St. in Iowa City. Hours are Monday through Friday, 8 a.m. to 5 p.m.