We hope to provide as much assistance as possible through our website. If you are unable to find the information you need, please contact us at 563-589-4450. If you need to visit us at the Courthouse, please schedule an appointment. 

Schedule an Appointment button

Please note we recommend using Google Chrome, Firefox, or Safari as internet browsers for scheduling an appointment.

Bill of Sale Now Required

A bill of sale is required for all vehicle transfers.  A bill of sale is available here for download.

Top of Courthouse

Pay Taxes and Auto Registration Online

Current tax, delinquent tax, and motor vehicle renewals can be paid online. If you have any questions, please contact us at 563-589-4450 or you can email Treasurer. Discover, MasterCard, Visa, and eCheck are accepted for Internet transactions.

Property Tax Inquiry or Payment Renewals

Auto License Registration Renewals

Escrow Taxes

It is possible to escrow your taxes with us. Take the worry out of tax payments. Dubuque County will take your monthly tax payment out of your checking or savings account on the 15th of each month and apply it towards your September and March Payment. Contact us about this service.

For Valuations, Gross and Net Tax, visit the Assessors Website

2023 Tax Sale Information

Dubuque County’s annual tax sale will be held on Monday, June 19, 2023 at 9:00 AM.