What's New!

GIS Technology Survey

In response to industry-wide interest in Geographic Information System (GIS) technology, IAAO is conducting a 20 question survey asking about operational uses of GIS tools within valuation offices. The goal of the survey is to identify trends in the use of GIS technologies with the intent to provide you with better information and services. Compiled results from this survey will be shared with all IAAO members. Those who complete the survey will be given a link to a free book from our industry partner in this survey, Esri. Assist IAAO and participate in this online survey.

International Research Symposium

Registration is now open for the 12th International Research Symposium, April 5-6, 2018 in Prague, Czech Republic. Prior to the symposium, a half-day forum on "Improving Valuations with Big Data, Open Data, & Data Mining" is scheduled for April 4th.  Attendees will be brought up to speed on state-of-the-art best practices and technologies in valuation and property tax by internationally renowned experts in the field. Learn more about trailblazing technologies early-adopters are using to improve valuation accuracy and defensibility, including sessions on:

  • Spatial automated valuation models (AVMs), machine learning, and artificial intelligence
  • Free, open-source software for analysis and mapping
  • Data mining: locating, harnessing, and benefiting from open and big data
  • More accurate and cost-effective geographical information system (GIS)-based data collection methods 
  • Modernizing property tax systems for outdated and potentially vulnerable tax collection systems
  • Implementing new property tax and land records systems in developing countries

Big-Box Paper

IAAO has released the association's position paper on valuing big-box stores. The paper, "Commercial Big-Box Retail: A Guide to Market-Based Valuation," was published by the Special Committee on Big Box Valuation, under the direction of the IAAO Research Subcommittee and IAAO Executive Board. The IAAO position paper focused on the key elements that assessment officials consider when addressing the challenges of Big Box store valuation.  

S&P Global Ratings issued a report January 29th saying that an expected increase in property tax challenges to big-box properties could put stress on municipal finances and that the use of the dark store theory will spread throughout the country

Assessment Brochure

To assist members in providing information about the assessment process, IAAO has developed a public information brochure, Understanding Your Assessment, explaining how the value of property is estimated and what causes it to change. Copies of the brochure are available to purchase online in quantities of 50 at $17 per each 50. For a free sample of this brochure, please send your mailing address to Pamela Meyers (meyers@iaao.org) with UYA Sample in the subject line. A sample brochure will be mailed to you.

Intangibles Guide

The guide on intangibles developed by the IAAO Special Committee on Intangibles is now available for download. See the Technical Standards page for more on Understanding Intangible Assets and Real Estate: A Guide for Real Property Valuation Professionals.

IAAO Big-Box Paper Now Available

New Volunteer Opportunities in 2018

Guide on Intangibles Released


GIS/CAMA Technology Conference is March 19-22

Integration of geographic information system (GIS) and computer-assisted mass appraisal (CAMA) systems will be a focus of the 22nd Annual GIS/CAMA Technologies Conference March 19–22 in Houston.

Other upcoming events include February's webinar which will teach attendees the essential functions of communication in an assessment office to help them connect with their employees, co-workers and citizens by discussing different communication styles, how to communicate with different generations, effective listening skills and interpretation of meaning.

Registration is now open for the 12th International Research Symposium, April 5-6, 2018 in Prague, Czech Republic. Prior to the symposium, a half-day forum on "Improving Valuations with Big Data, Open Data, & Data Mining" is scheduled for April 4th. Early registration deadline is March 2

2018 International Symposium

Sign up for February's Webinar

Future IAAO Webinars

Industry Events

Change View
  • March 19 2018
    22nd Annual GIS/CAMA Technologies Conference 03/19/2018 The GIS/CAMA Technologies Conference is jointly presented by URISA and IAAO and is designed to foster collaboration and integration of data, technology and functionality.

    The 2018 GIS/CAMA Technologies Conference will take place at the Hyatt Regency Houston.

    Registration is open at the URISA website and the early registration deadline is January 15.
    Add to Calendar
  • April 4 2018
    International Research Symposium 04/04/2018 The 2018 IAAO International Research Symposium is set for April 4-6 in Prague, Czech Republic, and will offer an exploration of the intersection of public policy and mass appraisal standards, guidance, and implementation challenges. The Symposium is April 5-6 and there will be a half-day forum on Data on April 4. Add to Calendar
  • April 18 2018
    Using the Census Bureau's ACS for Assessment Officials 04/18/2018 IAAO Webinar Series - The U.S. Census Bureau's American Community Survey (ACS) is an ongoing survey that provides vital information on a yearly basis about our nation and its people. Discover the detailed social, economic, housing, and demographic statistics that the ACS provides for every community every year

    Presented by Gretchen Gooding
    Add to Calendar
  • June 7 2018
    Preparation and Trial Seminar 06/07/2018 The two-day seminar is for attorneys, assessors, and appraisal personnel who want to be better prepared for appeals that progress to court hearings. Add to Calendar
  • September 23 2018
    84th Annual Conference On Assessment Administration 09/23/2018 Join IAAO for the 84th Annual Conference on Assessment Administration in Minneapolis. The annual conference provides educational sessions, networking, special events, and exhibits.
    Add to Calendar
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Find the resources you need in the 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.

The library recently released two new subject guides. The Sharing Economy Subject Guide provides links to articles, reports and websites with information on this new part of the economy. On landfills, there are two different ways to look at the valuation of landfills and the subject guide provides sources on both the appraisal of the landfill itself and also the impact on the surrounding properties. 

Subject Guide on Room Sharing Economy

New Landfill Subject Guide

More about IAAO Resources