Welcome to Mahaska County, IA

Online Payment Services

Discover, MasterCard, Visa and eCheck are accepted for internet transactions; 7 days a week, 24 hours a day! A service delivery fee will apply.

VEHICLE RENEWALS: You are eligible to renew on-line if you received a renewal notice through the US Postal Service that contains a PIN Number for on-line renewals.  However, if SR22 Proof of Insurance is required, or you owe a state debt, (i.e., income tax debt, child support recovery debt, or student loan debt), the vehicle does NOT qualify for on-line renewal.

In Office Payment Services

*Property Tax and Motor Vehicle Departments - cash, check, credit or debit Discover, MasterCard, or Visa.

*Drivers License Department - cash, check, credit or debit.

Contact Information

***Mahaska County Treasurers offices : All departments, Motor Vehicle, Drivers License and Tax will be CLOSED 8:00 a.m. - 9:30 a.m. for training TUESDAY, December 10, 2019.  We will open for business at 9:30 a.m.  Thank you for your patience.***


Office Hours


  • Office Hours: Tax Department   8:00 - 4:30 Monday - Friday
  • Office Hours: Motor Vehicle       8:00 - 4:30 Monday - Friday
  • Office Hours: Drivers License    8:00 - 4:00 Monday - Friday
  • Driver License Written Exam     8:00 - 4:00 Monday - Friday

*For those persons born in Iowa from May 1993 through October 2009 the wallet size birth certificate will still be accepted as proper identification for business at drivers license stations.  You may however exchange the wallet size document for a full size document through the Iowa Department of Public Health at no charge if you wish.  http://www.idph.iowa.gov/health-statistics/request-record; or you may contact your local County Recorder to see if you may make the exchange locally.

***Mahaska County Treasurers offices : All departments, Motor Vehicle, Drivers License and Tax will be CLOSED 8:00 a.m. - 9:30 a.m. for training TUESDAY, December 10, 2019.   We will open for business at 9:30 a.m.  Thank you for your patience.***

Mahaska County offers the following knowledge tests, skill and drive tests:

CAR DRIVES: for any vehicle under 16,000 GVWR.

D-2 Chauffeur:  any truck with the GVWR between 16,001 - 26,000 (example: SCHWANS, UPS, LUMBER CO TRUCKS).

D-3 Chauffeur:  vehicles for 16 passengers or less including the driver.

MOTORCYCLES: any 2 or 3 wheel - 50 cc's and over.

Notice: Liability Insurance will be required for ALL drive tests.  

Mahaska County offers CDL knowledge tests and provides issuance of Commercial Driver License.  Please visit the Iowa DOT site for locations offering CDL skill and drive testing.                                       

ALL DRIVE TEST times available are subject to change.  Drive testing will be cancelled in case of extreme weather

Extreme weather is described as but not limited to:

  1. temperatures at or below 0° degrees F;
  2. wind chill at or below 0° degrees F;
  3. conditions where visibility is extremely limited;
  4. ice covered roads.

All situations are subject to the County Treasurer and Drive Examiner’s discretion. 

Please contact our office at 641-673-9521 if you have any questions.  All drive test times available are subject to change.

***Mahaska County Treasurers offices : All departments, Motor Vehicle, Drivers License and Tax will be CLOSED 8:00 a.m. - 9:30 a.m. for training TUESDAY, December 10, 2019. We will open for business at 9:30 a.m.  Thank you for your patience.***

  • Car Drive Test:  Monday - Wednesday - Friday - first come first serve during the hours of 8:10-10:30 and 2:10-3:10.
  • D-2 Chauffeur Drive Test: Tuesday - by appointment ONLY
  • Motorcycle Drive Test: Thursday 8:30 - 10:00 a.m. by appointment ONLY
  • Motorcycle Drive Test Location ~ 140 Gateway Drive, Oskaloosa
  • (Northeast corner of the Gateway Church of the Nazarene parking lot)

Last car drive test at 3:15 (M-W-F)

ONE computer testing station - first come first serve, operational 8:00 a.m. - 4:00 p.m.  (testing will be ended at 4:00) daily.

Veteran Designation

Honorably discharged veterans may request the “Veteran” designation be placed on their driver’s license or non-operator identification card. Veteran must present a copy of their DD214 or applicable discharge document to the County or State Veterans Affairs Office to have their eligibility certified. That office and the veteran will complete an Iowa DOT Application form. Note: Veterans may request the “veteran” designation anytime they seek a new card, not just at the time of renewal. The cost for a duplicate DL or nonoperator ID is $10.00. Click here for additional information.

Mahaska County recognizes certain days of importance as holidays. Our office will be closed in observance of these holidays on the following dates:

  • January 1, 2019 New Year's Day
  • January 21, 2019 Martin Luther King Jr. Day
  • February 18 2019 President's Day
  • May 27, 2019 Memorial Day
  • July 4, 2019 Independence Day
  • September 2, 2019 Labor Day
  • November 11, 2019 Veteran’s Day
  • November 28 & 29, 2019 Thanksgiving Day and Friday after
  • December 24 & 25, 2019 Christmas Eve and Christmas Day


Our Location

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.


Connie J Van Polen



Connie was hired 1/01/1995 as a clerk in the Treasurer's Property Tax Department.  On 7/01/1996  she was promoted as a deputy in the Treasurer's Property Tax Department.  In 2003 she was promoted to 1st Deputy Treasurer of Mahaska County.

22,298 - 27th


Thank you for visiting our web-site.

Property tax collectable

               September 2019/March 2020 were                   certified August 2, 2019. 

                  Property tax statements were                           mailed August 5, 2019. 

If you did not receive your property tax statement(s), please contact our office to verify/update your mailing address.

We are pleased to offer you online payment services 24 hours a day, 7 days a week; as well as in office services Monday - Friday.

We strive to provide you with personal and professional service at the local level.

If you need assistance or if you have any questions regarding property tax, motor vehicle or driver license, please contact me or my staff by email or by phone. Thank you.


Connie J Van Polen