IAAO

About Us

The International Association of Assessing Officers is a nonprofit, educational and research association. It is a professional membership organization of government assessment officials and others interested in the administration of the property tax. The IAAO was founded in 1934, and now has a membership of more than 8,000 members worldwide from governmental, business, and academic communities.

IAAO members subscribe to a Code of Ethics and Standards of Professional Conduct and to the Uniform Standards of Professional Appraisal Practice.

Mission Statement

The mission of IAAO is to promote innovation and excellence in property appraisal, assessment administration, and property  tax policy through professional development, education, research, and technical assistance.  

Mission Statement in French and Spanish

Vision Statement