Nonprofit · EIN 22-2845329
INTERNATIONAL ISOTOPE SOCIETY INC
Tax-exempt · HOLLISTON, MA 01746
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990-EZ | $17,032 | $45,182 | -$28,150 | $105,544 | $5,251 | $100,293 |
| December 31, 2023 | 990-EZ | $17,698 | $28,630 | -$10,932 | $133,363 | $4,920 | $128,443 |
Financial details: 990-EZ for the year ended December 31, 2024
Revenue
- Membership dues
- $2,344
- Investment income
- $3
- Other revenue
- $14,685
Expenses
- Compensation of officers, directors and key employees
- $0
- Professional fees and payments to contractors
- $3,600
- Printing, publications and postage
- $1,649
- Other expenses
- $39,933
Balance sheet and other
- Total assets, start of year
- $133,363
- Total assets, end of year
- $105,544
- Total liabilities, end of year
- $5,251
- Net assets, end of year
- $100,293
- Cash, savings and investments
- $105,544
- Gross receipts
- $17,032
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-EZ for the year ended December 31, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MATT HRAPCHAK | PRESIDENT | 0 | $0 |
| BORIS CZESKIS | VICE PRESIDENT | 0 | $0 |
| SEAN BEW | TREASURER | 0 | $0 |
| DR DAVID HESK | SECRETARY | 0 | $0 |
| VOLKER DERDAU | BOARD OF TRUSTEES | 0 | $0 |
| BRAD MAXWELL | BOARD OF TRUSTEES | 0 | $0 |
| CHAD ELMORE | BOARD OF TRUSTEES | 0 | $0 |
| MARWAN ELMASRI | BOARD OF TRUSTEES | 0 | $0 |
990-EZ for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| VOLKER DERDAU | PRESIDENT | 0 | $0 |
| BORIS CZESKIS | VICE PRESIDENT | 0 | $0 |
| SEAN BEW | TREASURER | 0 | $0 |
| DR DAVID HESK | SECRETARY | 0 | $0 |
| MATT HRAPCHAK | BOARD OF TRUSTEES | 0 | $0 |
| BRAD MAXWELL | BOARD OF TRUSTEES | 0 | $0 |
| CHAD ELMORE | BOARD OF TRUSTEES | 0 | $0 |
| MARWAN ELMASRI | BOARD OF TRUSTEES | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 23 JACKSON DR, HOLLISTON, MA 01746-2292
- In care of
- % JENNIE AHERN
- Signed the 990-EZ
- BRAD MAXWELL, TREASURER
- Phone
- (215) 348-1539
- Website
- WWW.INTL-ISOTOPE-SOC.ORG
- Return prepared by
- CLARKE NICOLINI & ASSOCIATES LTD
Mission
TO ENCOURAGE THE ADVANCEMENT IN KNOWLEDGE OF THE CYNTHESIS, MEASUREMENT AND APPLICATION OF ISOTOPES AND ISOTOPICALLY LABELED COMPOUNDS FOR THE BENEFIT OF ALL RELATED COMPOUNDS.
Program accomplishments
- TO ENCOURAGE THE ADVANCEMENT IN KNOWLEDGE OF THE CYNTHESIS, MEASUREMENT AND APPLICATION OF ISOTOPES AND ISOTOPICALLY LABELED COMPOUNDS FOR THE BENEFIT OF ALL RELATED COMPOUNDS.
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 22-2845329
- 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)
- Public charity, 50% deduction limit
- Exempt since
- 1988
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Assets (IRS master file)
- $105,544
- Income (IRS master file)
- $17,032
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2024 | $17,032 | $45,182 | $105,544 | IRS |
| 990-EZ | December 2023 | $17,698 | $28,630 | $133,363 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
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 22-2845329).
Questions about INTERNATIONAL ISOTOPE SOCIETY INC
- What is the EIN of INTERNATIONAL ISOTOPE SOCIETY INC?
- The employer identification number (EIN) of INTERNATIONAL ISOTOPE SOCIETY INC is 22-2845329.
- Is INTERNATIONAL ISOTOPE SOCIETY INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1988.
- Are donations to INTERNATIONAL ISOTOPE SOCIETY INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does INTERNATIONAL ISOTOPE SOCIETY INC file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of INTERNATIONAL ISOTOPE SOCIETY INC 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 INTERNATIONAL ISOTOPE SOCIETY INC last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2024.
- Who are the officers and directors of INTERNATIONAL ISOTOPE SOCIETY INC?
- The 990-EZ for the year ended December 31, 2024 lists 8 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL ISOTOPE SOCIETY INC have?
- On its 990-EZ for the year ended December 31, 2024 it reported revenue of $17,032, expenses of $45,182 and total assets of $105,544 at year end.
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