Dubuque County Treasurer

08/05/2026

Property tax statements will be mailed in mid-August, so please watch your mailbox over the next few weeks.

The first-half property tax payment is due by September 30, 2026. Payments received after the due date may be subject to penalties.

Thank you for your patience while statements are being prepared and mailed!

07/01/2026

The Treasurer office will be closed on Friday, July 3rd in observance of Independence Day. Have a safe and enjoyable Fourth of July!

05/27/2026

📞 📞 Phone System Transition Notice 📞📞

Our office is in the process of transitioning to a new phone system. During this changeover, we may experience a few temporary hiccups, including brief delays, dropped calls, or difficulty reaching certain extensions.

We appreciate your patience and understanding as we work through the transition and improve our phone service. If you have trouble getting through, please try again or contact us by emailing [email protected]

Thank you for your patience!

04/10/2026

Look at this great opportunity at the Dubuque County Recorder's office!

Under the general guidance and direction of the County Recorder, performs principal administrative and supervisory duties.  Helps plan, organize, direct, and assess activities of the Recorder’s Office to best serve the public.  Performs a lead role in recording and indexing property/real estate ...

03/31/2026

All Dubuque County offices will be closed this Friday, including the Treasurer's office.

03/24/2026

📢 UPDATE: Duplicate Payment Processing Issue 📢

Following up on our report regarding duplicate payments for property taxes and motor vehicle transactions:

Who is affected: This was a statewide issue (not isolated to Dubuque County). It impacted only e-check payments made on March 16, 17, and 18.

Current Status: A reversal file has been uploaded for same-day processing on 3/23 (Monday). We anticipate that most customers will not see a duplicate charge, as the reversal should have occurred before the transaction settles.

Next Steps: We are currently analyzing the root cause to ensure this does not happen again.

What if I am charged a fee?
Our goal is to ensure no customers incur bank fees or NSF charges. However, if your financial institution does assess a fee due to this error, we are here to help.

Contact Us:
Phone: 563-589-4450
Email: Michael Clasen, Treasurer [email protected]

We will contact your financial institution directly to explain the situation and advocate for a full reimbursement of any charges.

Thank you for your patience as we navigated this statewide issue; we value your trust and are committed to making this right.

03/23/2026

UPDATE on duplicate payments:

We continue to monitor the situation concerning duplicate payments for motor vehicle and property tax payments made to the Dubuque County Treasurer Office.

This was isolated to e-check payments and as of right now it looks like we are seeing duplicates from 3/16, 3/17 and 3/18 payments.

The vendor is working on a reversal file to go out today that will be a same day ACH file, thereby offsetting those duplicate payments that are pending today. We ask that customers and/or their banks do NOT return these items as we are working on the correction.

Should you have additional questions, please reach out to the Treasurer's office at 563-589-4450.

03/23/2026

IMPORTANT NOTICE: Online Payment Duplicate Charges

We have been made aware of a technical issue affecting online payments where some accounts have been charged twice for a single transaction. Please know that we are working directly with our payment processor to identify all affected accounts and resolve this as quickly as possible.

What you need to know:
The Cause: A processing error resulted in duplicate pulls for recent online transactions for motor vehicle and property taxes.

The Fix: We are diligently working with the vendor to resolve this issue and minimize further inconvenience to our customers.

Action Needed: At this time, you do not need to contact your bank to dispute the charge, as filing a manual dispute may actually delay the automated refund process.

We sincerely apologize for the stress and frustration this has caused. As more information becomes available regarding the specific steps for those impacted, we will share those updates as quickly as possible.

Thank you for your patience as we work to make this right.

03/19/2026

The Dubuque County Board of Supervisors will conduct a public hearing on the Fiscal Year 2027 Proposed Property Tax Levy as follows:

• Date: Monday, April 6, 2026
• Time: 9:00 AM
• Location: Dubuque County Courthouse, Board of Supervisors Chambers, 720 Central Ave, Dubuque, IA 52001

The notice of public hearing can be viewed at this link https://www.dubuquecountyiowa.gov/DocumentCenter/View/8096/Notice-of-Public-Hearing---Proposed-Property-Tax-Levy-PDF
Please be aware that this notice is NOT a bill.

Dubuque County is requesting a 0% increase to the total levy.

01/29/2026

A throwback to 1941! Thanks Iowa Department of Transportation for sharing!

Construction of the concrete bridge columns of the Julien Dubuque Mississippi River Bridge, 1941.