Aumentum Tax User Group

The Minnesota Property Tax System User Group currently has 17 counties using the Aumentum Technologies property tax system. There are several subcommittees committed to various projects, such as the Legislative Research Committee, the Training Committee, and the Enhancements & Reports Committee. The MnCCC Tax User Group works closely with the Minnesota Department of Revenue on all of our projects.

Executive Officers

Past Chair: Jody Wagner, Rice County
Chair: Joyce Larson, Washington County
Vice-Chair: Kathy Jenson, Roseau County
Recording Officer: Jaci Kopet, Nicollet County

Committee Chairs

Legislative Research Committee Chair: Crystal Campos, Carver County
Training Committee Chair:
Kathy Jenson, Roseau County
Testing, Documentation, Standards, & Reports Committee Chair:
Steve Holthaus, Stearns County
Enhancements Committee Chair:
Joyce Larson, Washington County
eGov (CollectMax) Committee Chair:
Jackie Anderson, Stearns County


At-Large Representative I: Joe Heying, Morrison County
At-Large Representative II (up for election in 2021): Angie Larson, Isanti County
Northern Counties Representative: Sam Melbye, Polk County
Southern Counties Representative (up for election in 2021): Mike Stalberger, Blue Earth County


ISSG Liaison: Tiffany Ahearn, Blue Earth County
MnCCC Board Liaison: Jill Gontarek, Ramsey County

Rules & Regulations

Download the Aumentum Tax System User Groups Rules & Regulations pdf

Meeting Schedule

Tax Advisory meets the first Thursday each month.  Full user group business meetings are held at the MnCCC Conference in June and periodically throughout the year as needed.


  • Legislative Research Committee
  • Enhancements Committee
  • Beta Test Committee
  • Reports Committee
  • Training Committee

Links to Forms and Files

Contract Vendor(s)

The contract vendor(s) for this user group that provide(s) maintenance, support, development, and training services.

Aumentum Technologies