Treasurer

Welcome to the Mahaska County Treasurers webpage. 

Drivers License by Appointment only, to book an appointment, please call 641-673-9521. Due to System Upgrade, we are unable to schedule appointments at this time. We are still open for services! Scheduling will resume on January 20, 2026. 

Motor Vehicle (Auto Department) 9:00 a.m. - 4:00 p.m.   Please complete a Bill of Sale with every motor vehicle ownership change, and trailer ownership change.  Attach the completed Bill of sale with every vehicle sale/purchase and attach it to the title at the time of transfer.  A BILL OF SALE is now REQUIRED as of January 1, 2022 in Mahaska Co., per the Iowa Department of Revenue mandating the Bill of Sale requirement statewide January 1, 2022.  You may find a general Bill of Sale HERE

Property tax 8:00 a.m. - 4:30 p.m. 

Property Tax : 641-673-5482
Pay Property Tax Online
Payments may also be made in our office M-F 8:00 AM – 4:30 PM, or by mail. 

Motor Vehicle : 641-673-4618
Pay Vehicle Renewals Online
Payments may also be made in our office M-F 9:00 AM – 4:00 PM, or by mail.

MAIL to:
Mahaska County Treasurer
106 S 1st Street
Oskaloosa, IA 52577

General Information

Office Hours

• Tax Department: 8:00 a.m. to 4:30 p.m., Monday through Friday
• Motor Vehicle (Auto Dept): 9:00 a.m. to 4:00 p.m., Monday through Friday
• Driver's License: by APPOINTMENT ONLY
  • Written Exam: by APPOINTMENT ONLY
  • Car Drive Test: TUESDAY MORNING - by APPOINTMENT ONLY
  • Motorcycle Skill Test: THURSDAY MORNING - by APPOINTMENT ONLY (seasonal)

Mahaska County Treasurer       106 South First Street       Oskaloosa, IA  52577

The Mahaska County Courthouse is centrally located in Oskaloosa, Iowa. We are located at 106 South First Street adjacent to the town square. Handicap parking is available on the north side of the Courthouse as well as a handicap accessible ramp.

The Treasurers office (Tax and Automobile/Drivers License) is on the first floor of the Courthouse. You will enter the Courthouse on the ground level. Go up one flight of stairs to the first floor, an elevator is also available. The Treasurers office is to the right.

The Treasurers office consists of the Tax and Automobile/Drivers License Departments. All three departments are clearly marked with signs above each door for your convenience.

Holiday Closures

• January 1, 2026 In observance of New Year's Day 2026
• February 16, 2026 President's Day
• May 25, 2026 Memorial Day
• July 3, 2026 Independence Day
• September 7, 2026 Labor Day
• November 11, 2026 Veteran’s Day
• November 26 & 27, 2026 Thanksgiving Day and Friday after
• December 24 & 25, 2026  In observance of Christmas Eve and Christmas Day
• January 1, 2027 New Year's Day 2027