• IAAO Election Information2016 Executive Board election information now available.
  • Continuing EducationIAAO courses include a comprehensive curriculum on appraisal procedures and assessment administration offered throughout the world. Our courses, workshops, and forums range in length from one to five days and we also offer a variety of online courses.
  • Welcome to IAAOWe are the International Association of Assessing Officers and we offer education, technical standards, consulting services, and many other resources to the assessing community.


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IAAO fosters innovation and excellence through our internationally recognized designation program, top notch courses, and easily accessible online education. Success has never been more attainable.


Find what you are looking for In the IAAO Library

Looking for an IAAO Resource? Find all of our internationally recognized publications, standards, and periodicals here. Members have full access to the IAAO Library as well as AssessorNET, our member networking tool.

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Event Calendar

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  • September 19 2016
    International Research Symposium 09/19/2016 The 2016 IAAO International Research Symposium will offer an exploration of the intersection of public policy and mass appraisal standards, guidance, and implementation challenges. The focus will be on the exchange of knowledge for continuous improvement of property tax systems. Add to Calendar
  • September 20 2016
    Big Data For Valuation Purposes 09/20/2016 This two-hour workshop will give an overview of the history and future of Big Data and how it has impacted the appraisal industry. The instructors will discuss specific ways to utilize Big Data to build client relationships, increase business, and simplify procedures. The instructors will demonstrate the most current uses of Big Data. Add to Calendar
  • October 14 2016
    IAAO Fall Leadership Days 10/14/2016 Registration for this event is open to committee invitation only. Add to Calendar
  • December 8 2016
    37th Annual Legal Seminar 12/08/2016 The Legal Seminar offers the unique perspective of members who are primarily involved in legal issues. The seminar presents substantive and procedural developments in law that affect assessments and valuation. Add to Calendar