Second installment of property taxes due, late payment penalties begin April 1, 2025
Johnson County property owners are reminded that the second installment of property and mobile home taxes is due Saturday, March 1, 2025. Payments need to be delivered to the Treasurer’s Office, paid online or postmarked by Monday, March 31, 2025, to avoid a 1 ½ percent monthly penalty that will begin on Tuesday, April 1, 2025.
In-person payments must be made at the Treasurer’s Office, located at the Johnson County Administration Building at 913 S. Dubuque St. in Iowa City. Hours are Monday through Friday, 8 a.m. to 5 p.m.