IAAO Survey Results Publications

Staffing Benchmark Survey

Staffing in Assessment Offices in the United States and Canada: Results of 2013 Survey
Conducted through the Academic Partnership Program under the direction of the IAAO Research Committee.

Lawrence C. Walters, Ph.D., is a Professor of Public Management and Policy at the Romney Institute of Public Management, Brigham Young University, Provo, Utah. 

Research Committee members at the time of the survey were Ronald Rakow, Chair; Kenneth C. Uhrich; Shawn T. Ordway; Gary Snyder, RES; August Dettbarn; Ruel J. Williamson; and Staff Liaison Mary Odom, MLS.

Members: Download the FREE PDF report from the Marketplace or the LibraryLink Catalog. The raw data spreadsheet costs $75 and is available in the Marketplace.

Non-Members: The PDF report is available for $50 in the IAAO Marketplace, and the raw data spreadsheet for $75.

Email the Research Committee Liaison with any questions or comments: cusack@iaao.org


State Roll Call:  Requirements for Assessor Licensing/Certification

The highly anticipated report is NOW available!

The IAAO Research Department announces a new resource for property assessment personnel which is the definitive guide to all licensing/certification programs by state. The report includes mandatory and voluntary programs, statutes & regulations, continuing education, and the relationship of these programs to IAAO education and designations.

Download a free copy of the 2016 State Roll Call.

In years past, the Research Department analyzed all the certification programs across the country to track the various features of mandatory, incentive, and voluntary models. The last iteration was compiled in 1992. As part of the Emerging Trends Survey conducted in late 2015, the department endeavored to update these data and create a State Roll Call of statutes and regulations which govern the certification of local assessors. The assessment industry has gained much ground in raising the level of professionalism through state mandatory certification programs. However, as a leading education provider, IAAO has lost ground in the acceptance of its designations to fulfill the requirements of state programs.


PTAPP Survey

The 2012 Update of the Property Tax Assessment Policies and Practices Survey (PTAPP), published in the IAAO Journal of Property Tax Assessment & Administration (Vol. 11, No. 3, 2014) and compiled by Alan Dornfest, AAS, Steve Van Sant and Rick Anderson.

Download 2012 Survey Results

The 2010 Property Tax Assessment Policies and Practices Survey (PTAPP) Results

In response to a need for current information about property tax systems, IAAO has since 1990 published surveys of the features of property tax systems in Canada and the United States. This compilation is the latest in the series. Although the main audience is property tax administrators and policy makers in the two countries, readers from other countries may find it helpful as well. 

The 2010 survey was conducted as a joint project of the IAAO Communications Committee and the State and Provincial Council. 

Article: 2010 State and Provincial Property Tax Policies and Administrative Practices: 
Compilation and Report
 ( 445 KB)
by Alan S. Dornfest, AAS, Steve Van Sant, Rick Anderson, and Ronald Brown 
(published in Journal of Property Tax Assessment & Administration, Vol. 7, Issue 4)

2010 Survey results in Excel format

Do you have a comment about survey results? Please send notification if you find discrepancies so they can be fixed for future surveys.

Click here to send an e-mail.


Ratio Studies Survey

Periodically over the past 20 years, prevalent practices and issues in ratio studies have been explored by comparing U.S. states, Canadian provinces and territories, and a few local jurisdictions in terms of frequency of studies, standards used to evaluate results, and final use of results. The latest surveys were conducted by the IAAO Technical Standards Committee in 2008 and 2011.

Disclaimer: Users of this data should exercise caution when interpreting totals. Some totals in the final report are different from the raw data based on interpretation and selective follow-up.

Right click on a link to download the document.

State and Provincial Ratio Study Practices: Results of 2013 Survey ( 521 KB)
(Published in Journal of Property Tax Assessment & Administration, Vol. 12, Issue 1)

State and Provincial Ratio Study Practices: 2013 Raw Data (Excel file, 75 KB)

State and Provincial Ratio Study Practices: Results of 2011 Survey ( 652 KB)
(Published in Journal of Property Tax Assessment & Administration, Vol. 9, Issue 1)

State and Provincial Ratio Study Practices: 2011 Raw Data(Excel file, 150 KB)

State and Provincial Ratio Study Practices: Results of 2008 Survey ( 445 KB)
(Published in Journal of Property Tax Assessment & Administration, Vol. 6, Issue 2)

State and Provincial Ratio Study Practices: 2008 Errata(updated August 2009,  37 KB)

State and Provincial Ratio Study Practices: 2008 Raw Data(Excel file, 189 KB)
(Text responses from survey are provided in a separate file.)

State and Provincial Ratio Study Practices: 2008 Tally of Results (Excel file, 477 KB)

2008 Written Responses and Notes in Survey (Excel file, 61 KB)

IAAO 2003 Ratio Study Practices Survey  ( 3 MB) 
(published in Journal of Property Tax Assessment & Administration, Vol. 1, Issue 1)

Do you have a comment about survey results? Please send notification if you find discrepancies so they can be fixed for future surveys.

Click here to send an e-mail.


Other Surveys

Membership Survey (2016) by McKinley Advisors

Communication Practices Survey (2010) by the IAAO Communications Committee

Membership Survey (2007) by Veris Consulting