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International Association of Assessing Officers

EIN 36-2210012 · Kansas City, MO

Public records show a registered, tax-exempt organization in good standing.

LegitimacyPassesRegistration and standingFinancial healthStrong97 out of 100GovernanceStrong100 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

THE MISSION OF IAAO IS TO PROMOTE GLOBAL EXCELLENCE IN PROPERTY APPRAISAL, ASSESSMENT ADMINISTRATION, AND PROPERTY TAX POLICY, THROUGH INNOVATIVE PROFESSIONAL DEVELOPMENT, EDUCATION, RESEARCH, AND TECHNICAL ASSISTANCE.

Income
$7.7 million
Spending
$7.6 million
Spent on programs
80%
Reserves
13.1 months of spending
Largest source of income
fees for its services, 95%
Employees
29
Volunteers
346
Highest pay
$199,271, senior director of busines

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Strong: 97 out of 100.

  • Reserves

    35 of 35

    Spendable reserves would cover 13.1 months of spending.

  • Debt

    20 of 20

    It owes 13% of what it owns.

  • Living within its means

    12 of 15

    Income exceeded spending by 0% of income.

  • Income trend

    15 of 15

    Income rose 12% on the year before.

  • Spending floor

    15 of 15

    80% of spending went to programs and raising each dollar of donations cost 0 cents.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

Strong: 100 out of 100.

  • Independent board

    25 of 25

    14 of 14 voting board members are independent.

  • Conflict of interest policy

    15 of 15

    Has a written conflict of interest policy.

  • Whistleblower policy

    8 of 8

    Has a written whistleblower policy.

  • Record keeping policy

    7 of 7

    Has a written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • Pay set independently

    5 of 5

    Sets its chief executive's pay through independent review and comparison.

  • Independent check of accounts

    15 of 15

    Its accounts were audited by an independent accountant.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Impact evidence

Describes programs. Its tax return describes what it does but we have found no measurable results in it.

Programs described in its return (4)
  1. $1.7 million spent. EDUCATION AND PROFESSIONALISM: IAAO CONDUCTS PROFESSIONAL DEVELOPMENT BY OFFERING COURSES, WORKSHOPS, SEMINARS, AND OTHER EDUCATIONAL PRODUCTS TO EDUCATE THOSE ENGAGED IN THE ASSESSMENT PRACTICE. IN ADDITION, THIS PROGRAM OVERSEES THE CREDENTIALS OFMEMBERS.
  2. $2.1 million spent. ANNUAL CONFERENCE: IAAO CONDUCTS AN ANNUAL MEETING FOR MEMBERS AND NON MEMBERS TO CONNECT WITH OTHER MEMBERS AND NON MEMBERS. WE ALSO PROVIDE TECHNICAL ASSISTANCE TO JURISDICTIONS, CITIES AND COUNTRIES.
  3. $1.2 million spent. MEMBERSHIP: IAAO IS DEDICATED TO IMPROVING THE ADMINISTRATION AND UNDERSTANDING OF PROPERTY TAX ISSUES FOR ITS 8,326 MEMBERS. THIS INCLUDES SUPPORTING LOCAL PROGRAMS, MAINTAINING ETHICS CODE, PROVIDING A LIAISON FUNCTION WITH NATIONAL AND INTERNATIONAL ORGANIZATIONS, RECOGNIZING OUTSTANDING ACHIEVEMENT WITHIN THE PROFESSION AND MAINTAINING COUNCILS AND SECTION DESIGNED TO MEET THE NEEDS OF THOSE SPECIALIZED AREAS OF ASSESSING.
  4. $1.1 million spent. PUBLISHING AND MARKETING:PUBLISHES A JOURNAL, A MAGAZINE, AND SEVERAL ELECTRONIC NEWSLETTERS AS WELL AS VARIOUS TEXTBOOKS AND REFERENCE BOOKS IN THE AREA OF AD VALOREM TAXATION.RESEARCH AND INFORMATION:IAAO PROVIDES LIBRARY AND OTHER RESOURCE MATERIALS TO MEMBERS AND NON MEMBERS. WE ALSO PROVIDE TECHNICAL ASSISTANCE TO JURISDICTIONS, CITIES AND COUNTIES.

Source: Form 990 for the year ending December 31, 2024, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Legitimacy checks

  1. Is it registered with the IRS? Passed.

    Listed in the IRS master file of tax-exempt organizations as a 501(c)(3) charitable organization.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  2. Has the IRS revoked its tax-exempt status? Passed.

    Not on the IRS automatic revocation list.

    Source: Automatic revocation of exemption list, Internal Revenue Service, file dated October 13, 2026.

  3. Are donations tax-deductible? Passed.

    On the IRS list of organizations eligible to receive tax-deductible contributions.

    Source: Publication 78 data: organizations eligible for tax-deductible contributions, Internal Revenue Service, file dated October 13, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending December 2024.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since November 1995.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 2026.

  6. Is it in good standing with state regulators? Passed.

    Not on California's list of charities barred from soliciting. Other states are not yet checked.

    Source: May Not Operate or Solicit for Charitable Purposes list, California Attorney General, Registry of Charities and Fundraisers, file dated October 21, 2026.

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