Latest News

GIS Day

Interested in knowing more about how GIS can assist in your assessment work? Join James Werner as Tippecanoe County virtually hosts GIS...

Adventures with ESRI Hub

Check out the Maps page and see what is possible using ESRI's Hub tool, assessment data, and some creativity.

COVID-19 and Assessing

By now, everyone in the assessing community is starting to realize the number of challenges the onset of the COVID-19, and the...

Class Descriptions for the OSA Annual Adjustments/Ratio Study Symposium are Published

Check out our Event page to learn more information about this event. In addition to Annual Adjustments and the Ratio Study, other topics...

August IBTR decisions are published

The latest IBTR decisions for August 2019 have been published. Check them out here. Besides Meijer v. Boone County Assessor, there are...

OSA is looking for instructors

We're all about sharing the knowledge among assessors, so if you there is a subject in which you have expertise and/or unique insights,...

July IBTR decisions are published

The latest IBTR decisions for July 2019 have been published. Check them out here.

2019 IREM Income/Expense Analysis Reports are Available

Fresh shiny new commercial property data is available from the good people at IREM. The 2019 Income/Expense Analysis Reports for...

June 2019 IBTR Decisions are Updated

The June batch of decisions focus on matters such as assessor concessions, religious exemptions, flood zones, and more! See them here.

IAAO Releases Exposure Draft 'Setting the Record Straight on Fee Simple'

The IAAO Fee Simple Task Force has released its paper that aims to define the term "fee simple" and its use in both an appraisal and a...

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