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International Union of Toxicology Incorporated

EIN 22-2532651 · Reston, VA

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

LegitimacyPassesRegistration and standingFinancial healthStrong94 out of 100GovernanceNot ratedThe short tax form does not cover thisImpact evidenceDescribes programsHow well its results are evidenced

What it says it does

IUTOX's mission is to improve human health through the science and practice of toxicology world-wide. The Organization provides a forum for review of concerns and developments in toxicology; conducts workshops and seminars on an annual basis; and sponsors a Congress on Toxicology on a triennial basis at locations throughout the world.

Income
$152,339
Spending
$146,667
Reserves
17.6 months of spending
Largest source of income
donations and private grants, 47%

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Financial health

Strong: 94 out of 100. Higher than 80% of charities in its peer group (diseases, under $250k).

  • Reserves

    35 of 35

    Spendable reserves would cover 17.6 months of spending.

  • Debt

    16 of 20

    It owes 18% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 4% of income.

Source: Form 990EZ for the year ending December 31, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate

Governance

This organization files the short tax form, which does not ask about boards, policies or audits. That is normal for a small charity and is not a mark against it.

Source: Form 990EZ for the year ending December 31, 2025, 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 (3)
  1. $30,684 spent. Executive Committee - Conducts IUTOX's business and organizes its programs.
  2. $48,402 spent. ICT-The International Congress of Toxicology (ICT) is a triennial global academic event offering the opportunity to learn the latest developments in toxicological science and regulation through general scientific sessions and continuing education classes. The ICT 17th was held on October 15-18, 2025 in Beijing China. It was hosted by Chinese Society of Toxicology.
  3. $11,293 spent. RASS-Risk Assessment Summer School-IUTOX sponsors advanced training for selected postgraduate and postdoctoral toxicologists in risk assessment, through the Risk Assessment Summer Schools (RASS). RASS was held in February 2025 in Sao Paulo Brazil.

Source: Form 990EZ for the year ending December 31, 2025, 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 2025.

    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 September 1985.

    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.

Ratings and checks are our reading of public records, using the published method. They are not a statement about anyone's honesty. If you work for this organization, you can send corrections or results, confirm you want gifts through Veridonate, or ask to be removed from giving.