Nonprofit · EIN 31-1616145
INTERNATIONAL SOCIETY OF BASSISTS
Tax-exempt · DALLAS, TX 75244
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990 | $539,791 | $455,307 | $84,484 | $1,479,289 | $34 | $1,479,255 |
| August 31, 2024 | 990 | $247,354 | $199,331 | $48,023 | $1,367,367 | $80 | $1,367,287 |
| August 31, 2023 | 990 | $752,205 | $494,704 | $257,501 | $1,274,124 | $84 | $1,274,040 |
Financial details: 990 for the year ended August 31, 2025
Revenue
- Contributions, gifts and grants
- $215,685
- Program service revenue
- $296,508
- Investment income
- $26,719
- Net income from sales of inventory
- $879
- Other revenue
- $879
Expenses
- Grants and similar amounts paid
- $49,900
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $2,441
- Program services (functional)
- $362,714
- Management and general (functional)
- $92,593
Balance sheet and other
- Total assets, start of year
- $1,367,367
- Total assets, end of year
- $1,479,289
- Total liabilities, end of year
- $34
- Net assets, end of year
- $1,479,255
- Gross receipts
- $558,270
- Employees
- 0
- Volunteers
- 100
- Year formed
- 1987
- 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 August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JAY MEDER | Treasurer Trustee or director, Officer | 2 | $0 |
| Hollie Greenwood | Director Trustee or director | 2 | $0 |
| Tommy Hawthorne | Director Trustee or director | 2 | $0 |
| HANS STURM | PAST President Trustee or director, Officer | 2 | $0 |
| WESLEY THOMPSON | Secretary Trustee or director, Officer | 2 | $0 |
| Gabriele Ragghianti | Director Trustee or director | 2 | $0 |
| KURT MELENDY | Director Trustee or director | 2 | $0 |
| SANDOR OSTLUND | PRES. ELECT Trustee or director, Officer | 2 | $0 |
| JOEL BRAUN | Director Trustee or director | 2 | $0 |
| DENNIS WHITTAKER | Director Trustee or director | 2 | $0 |
| GAELEN MCCORMICK | President Trustee or director, Officer | 2 | $0 |
990 for the year ended August 31, 2024: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JAY MEDER | Treasurer Trustee or director, Officer | 2 | $0 |
| MIMI JONES | Director Trustee or director | 2 | $0 |
| HANS STURM | PAST President Trustee or director, Officer | 2 | $0 |
| WESLEY THOMPSON | Secretary Trustee or director, Officer | 2 | $0 |
| PATRICIA WEITZEL | Director Trustee or director | 2 | $0 |
| KURT MELENDY | Director Trustee or director | 2 | $0 |
| SANDOR OSTLUND | PRES. ELECT Trustee or director, Officer | 2 | $0 |
| JOEL BRAUN | Director Trustee or director | 2 | $0 |
| ALLEGRA HALE NIETO | Director Trustee or director | 2 | $0 |
| JESSICA VALLS | Director Trustee or director | 2 | $0 |
| DENNIS WHITTAKER | Director Trustee or director | 2 | $0 |
| MITCH MOEHRING | Director Trustee or director | 2 | $0 |
| GAELEN MCCORMICK | President Trustee or director, Officer | 2 | $0 |
990 for the year ended August 31, 2023: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JAY MEDER | Treasurer Trustee or director, Officer | 2 | $0 |
| MIMI JONES | Director Trustee or director | 2 | $0 |
| HANS STURM | President Trustee or director, Officer | 2 | $0 |
| WESLEY THOMPSON | Secretary Trustee or director, Officer | 2 | $0 |
| PATRICIA WEITZEL | Director Trustee or director | 2 | $0 |
| TRAVIS HARRISON | Director Trustee or director | 2 | $0 |
| SANDOR OSTLUND | Director Trustee or director | 2 | $0 |
| TRACY ROWELL | Director Trustee or director | 2 | $0 |
| ALLEGRA HALE NIETO | Director Trustee or director | 2 | $0 |
| JESSICA VALLS | Director Trustee or director | 2 | $0 |
| JOHN SCHIMEK | PAST President Trustee or director, Officer | 2 | $0 |
| MITCH MOEHRING | Director Trustee or director | 2 | $0 |
| GAELEN MCCORMICK | PRESIDENT ELECT Trustee or director, Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 14070 PROTON ROAD 100 LB9, DALLAS, TX 75244-3601
- In care of
- % MADELEINE CROUCH
- Principal officer (990 for 2024)
- GAELEN MCCORMICK, 14070 PROTON ROAD 100 LB9, DALLAS, TX 75244
- Signed the 990
- JAY MEDER, Treasurer
- Phone
- (972) 233-9107
- Website
- www.isbworldoffice.com
- Return prepared by
- Sutton Frost Cary LLP
Mission
The International Society of Bassists was founded by the world-renowned virtuoso Gary Karr in 1967. With nearly 2,500 members in over 40 countries, the ISB is dedicated to inspiring public interest, raising performance standards, and providing an organization for those who teach, study, play, repair, build, research and enjoy the double bass. The ISB is a forum for communication among the bassists throughout the world and across a wide variety of musical styles.
Program accomplishments
- Biennial Educational Conference and other professional meetings to inform and educate the members and the public, and to strengthen the profession.Expenses $328,389 · grants $49,900 · revenue $183,742
- Publications Program (Magazine, Calendar, Newsletter), Member Services, Composition Programs, Competition Program, Website and other projects to educate members and the public, and to strengthen the profession.Expenses $34,325 · revenue $112,766
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 August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990 on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990 on file |
IRS record
- EIN
- 31-1616145
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1998
- Accounting year ends
- August
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Arts, culture and humanities (A68)
- Assets (IRS master file)
- $1,479,289
- Income (IRS master file)
- $558,270
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | August 2025 | $539,791 | $455,307 | $1,479,289 | XML |
| 990 | August 2024 | $247,354 | $199,331 | $1,367,367 | XML |
| 990 | August 2023 | $752,205 | $494,704 | $1,274,124 | XML |
| 990 | August 2022 | $177,433 | $148,492 | $1,006,084 | IRS |
| 990 | August 2021 | – | – | – | IRS |
| 990 | August 2020 | – | – | – | IRS |
| 990 | August 2019 | – | – | – | IRS |
| 990 | August 2018 | – | – | – | 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 31-1616145).
Questions about INTERNATIONAL SOCIETY OF BASSISTS
- What is the EIN of INTERNATIONAL SOCIETY OF BASSISTS?
- The employer identification number (EIN) of INTERNATIONAL SOCIETY OF BASSISTS is 31-1616145.
- Is INTERNATIONAL SOCIETY OF BASSISTS tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1998.
- Are donations to INTERNATIONAL SOCIETY OF BASSISTS tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does INTERNATIONAL SOCIETY OF BASSISTS 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 INTERNATIONAL SOCIETY OF BASSISTS due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did INTERNATIONAL SOCIETY OF BASSISTS last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended August 2025.
- Who is the principal officer of INTERNATIONAL SOCIETY OF BASSISTS?
- The 990 for the year ended August 31, 2025 names GAELEN MCCORMICK.
- Who are the officers and directors of INTERNATIONAL SOCIETY OF BASSISTS?
- The 990 for the year ended August 31, 2025 lists 11 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL SOCIETY OF BASSISTS have?
- On its 990 for the year ended August 31, 2025 it reported revenue of $539,791, expenses of $455,307 and total assets of $1,479,289 at year end.
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