Nonprofit · EIN 36-3465788
THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION
Tax-exempt · ARLINGTON, VA 22203
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990 | $977,461 | $1,005,623 | -$28,162 | $447,139 | $487,857 | -$40,718 |
| December 31, 2023 | 990 | $954,996 | $985,030 | -$30,034 | $332,406 | $345,926 | -$13,520 |
Financial details: 990 for the year ended December 31, 2024
Revenue
- Contributions, gifts and grants
- $32,505
- Program service revenue
- $941,376
- Investment income
- $2,180
- Other revenue
- $1,400
Expenses
- Grants and similar amounts paid
- $2,440
- Compensation of officers, directors and key employees
- $127,191
- Other salaries and wages
- $156,805
- Salaries, compensation and benefits (total)
- $317,961
- Professional fundraising fees
- $0
- Legal fees
- $11,344
- Accounting fees
- $55,596
- Occupancy
- $18,652
- Travel
- $9,036
- Depreciation
- $294
- Program services (functional)
- $688,160
- Management and general (functional)
- $317,463
Balance sheet and other
- Total assets, start of year
- $332,406
- Total assets, end of year
- $447,139
- Total liabilities, end of year
- $487,857
- Net assets, end of year
- -$40,718
- Land, buildings and equipment
- $490
- Publicly traded securities
- $19,081
- Net assets without donor restrictions
- -$187,599
- Net assets with donor restrictions
- $146,881
- Gross receipts
- $977,461
- Employees
- 4
- Volunteers
- 100
- Year formed
- 1985
- State of legal domicile
- IL
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Mary Pat Hanlin | Chief Executive Officer Officer | 40 | $119,683 | $7,508 |
| Peter Maves | President Trustee or director, Officer | 10 | $0 | $0 |
| D Michael Coy | President Elect Trustee or director, Officer | 3 | $0 | $0 |
| Michael Salter | Immediate Past President Trustee or director, Officer | 3 | $0 | $0 |
| Abigail Percifield | Vice President Trustee or director, Officer | 3 | $0 | $0 |
| Jonathan Cleveland | Secretary Trustee or director, Officer | 3 | $0 | $0 |
| Nicole Black | Treasurer (Jan-Aug) Trustee or director, Officer | 5 | $0 | $0 |
| Jillian Hosey | Director Trustee or director | 2 | $0 | $0 |
| Valerie Sinason | Director Trustee or director | 2 | $0 | $0 |
| Eva Young | Director Trustee or director | 2 | $0 | $0 |
| Sheldon Itzkowitz | Director Trustee or director | 2 | $0 | $0 |
| Benjamin Israel | Director Trustee or director | 2 | $0 | $0 |
| Adihy | Director Trustee or director | 2 | $0 | $0 |
| Elizabeth Chalenburg | Director Trustee or director | 2 | $0 | $0 |
| Elizabeth Davis | Director Trustee or director | 2 | $0 | $0 |
4 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Patti van Eys | Director Trustee or director | 2 | $0 |
| Graham Pringle | Director Trustee or director | 2 | $0 |
| JenniferGomez | Director Trustee or director | 2 | $0 |
| Krista Behren | Director (Jan-Oct), Treasurer (Nov-Dec) Trustee or director, Officer | 5 | $0 |
990 for the year ended December 31, 2023: 19 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| Mary Pat Hanlin | Chief Executive Officer Officer | 40 | $120,000 | $7,543 |
| Michael Salter | President Trustee or director, Officer | 10 | $0 | $0 |
| Peter Maves | President Elect Trustee or director, Officer | 3 | $0 | $0 |
| Lisa Danylchuk | Immediate Past President Trustee or director, Officer | 3 | $0 | $0 |
| Abigail Percifield | Vice President Trustee or director, Officer | 3 | $0 | $0 |
| Katie Keech | Secretary (Jan-Mar) Trustee or director, Officer | 3 | $0 | $0 |
| D Michael Coy | Treasurer Trustee or director, Officer | 5 | $0 | $0 |
| Jillian Hosey | Director Trustee or director | 2 | $0 | $0 |
| Valerie Sinason | Director Trustee or director | 2 | $0 | $0 |
| Eva Young | Director Trustee or director | 2 | $0 | $0 |
| Sheldon Itzkowitz | Director Trustee or director | 2 | $0 | $0 |
| Sara Rourke | Director Trustee or director | 2 | $0 | $0 |
| Christine Forner | Director Trustee or director | 2 | $0 | $0 |
| Jonathan Cleveland | Director (Jan-April), Secretary (May-December) Trustee or director, Officer | 3 | $0 | $0 |
| Benjamin Israel | Director Trustee or director | 2 | $0 | $0 |
| Nicole Black | Director Trustee or director | 2 | $0 | $0 |
| Adihy | Director Trustee or director | 2 | $0 | $0 |
| Elizabeth Chalenburg | Director Trustee or director | 2 | $0 | $0 |
| Tally Tripp | Director Trustee or director | 2 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 4201 WILSON BLVD 3RD FLOOR, ARLINGTON, VA 22203-4420
- Mailing address (990-N for 2017)
- 3232 W Victoria St, Chicago IL 60659
- Principal officer (990 for 2024)
- Mary Hanlin, 4201 Wilson Blvd 3rd Floor, Arlington, VA 22203
- Principal officer (990-N for 2017)
- Janet Migdow, 3232 W Victoria St, Chicago IL 60659
- Signed the 990
- Mary Hanlin, Chief Executive Officer
- Phone
- (844) 994-7783
- Website
- www.isst-d.org
- Return prepared by
- Rogers & Company PLLC
Mission
The International Society for the Study of Trauma and Dissociation (ISSTD) is an international, non-profit, professional association organized to develop and promote comprehensive, clinically effective and empirically based resources and responses to trauma and dissociation and to address its relevance to other theoretical constructs.
Program accomplishments
- Annual conference educates members and nonmembers about developments in the field of trauma and dissociation, clinical and research knowledge, and effective treatments.Expenses $301,167 · revenue $182,039
- Training Courses & Seminars - ISSTD Professional Training Program offers in person and online training for member and non-member trauma therapists ranging from introductory level to master's level courses and includes specialized child and adolescent trauma training as well. Training focuses on the impact of trauma on patients. Faculty utilize fictional and real case studies to describe dissociative identity disorder treatment options.Expenses $332,935 · revenue $380,383
- Publications produced to educate members and nonmembers on topics relating to the study of trauma and dissociation. Includes the Journal of Trauma and Dissociation.Expenses $47,037 · revenue $16,031
- Seminars, Leadership, Awards, and Webinar.Expenses $7,021 · grants $2,440 · revenue $362,923
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | Not on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 36-3465788
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Group exemption
- Exempt since
- 1988
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T99Z)
- Group exemption
- 8043 (1 member organizations)
- Assets (IRS master file)
- $447,139
- Income (IRS master file)
- $977,461
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2024 | $977,461 | $1,005,623 | $447,139 | XML |
| 990 | December 2023 | $954,996 | $985,030 | $332,406 | XML |
| 990 | December 2022 | $947,252 | $1,175,940 | $336,182 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990-N for 2017 Officer: Janet Migdow | December 31, 2017 | ≤ $50,000 receipts | – | – | e-Postcard |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 36-3465788).
Questions about THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION
- What is the EIN of THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION?
- The employer identification number (EIN) of THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION is 36-3465788.
- Is THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1988.
- Are donations to THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Group exemption).
- Which annual return does THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION due?
- The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2024.
- Who is the principal officer of THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION?
- The 990 for the year ended December 31, 2024 names Mary Hanlin.
- Who are the officers and directors of THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION?
- The 990 for the year ended December 31, 2024 lists 19 people; 1 received compensation from the organization, the highest $119,683 (Mary Pat Hanlin, Chief Executive Officer).
- How much revenue does THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION have?
- On its 990 for the year ended December 31, 2024 it reported revenue of $977,461, expenses of $1,005,623 and total assets of $447,139 at year end.
Organizations in its group exemption (1)
- THE INTERNATIONAL SOCIETY FOR THE STUDY OF TRAUMA AND DISSOCIATION EIN 91-2114906 · EVANSTON, IL · last filed 990-N for 2025
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- ARLINGTON COMMUNITY FOUNDATION EIN 54-1602838 · last filed 990 for 2025
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- BADER FAMILY FOUNDATION EIN 27-6359747 · last filed 990-PF for 2024
- PHI DELTA KAPPA INTERNATIONAL INC EIN 35-0975844 · last filed 990 for 2024
- ECDC ENTERPRISE DEVELOPMENT GROUP EIN 54-1993252 · last filed 990 for 2025
- WILDLIFE JUSTICE COMMISSION INVESTIGATIONS INC EIN 93-3384174 · last filed 990 for 2024
- AIR INTERNATIONAL EIN 75-3046958 · last filed 990 for 2024
All nonprofits in ARLINGTON · Virginia · Philanthropy, voluntarism and grantmaking foundations