Nonprofit · EIN 77-0529260
MAMMOTH HIGH SCHOOL BOOSTER CLUB
Tax-exempt · MAMMOTH LAKES, CA 93546
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| July 31, 2025 | 990 | $247,364 | $166,270 | $81,094 | $280,768 | $0 | $280,768 |
| July 31, 2024 | 990 | $314,965 | $310,290 | $4,675 | $200,119 | $0 | $200,119 |
Financial details: 990 for the year ended July 31, 2025
Revenue
- Contributions, gifts and grants
- $238,517
- Membership dues
- $4,300
- Program service revenue
- $0
- Investment income
- $4,997
- Net income from gaming
- $3,850
- Other revenue
- $3,850
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Program services (functional)
- $164,795
- Management and general (functional)
- $1,475
Balance sheet and other
- Total assets, start of year
- $199,674
- Total assets, end of year
- $280,768
- Total liabilities, end of year
- $0
- Net assets, end of year
- $280,768
- Net assets with donor restrictions
- $280,768
- Gross receipts
- $247,364
- Employees
- 0
- Volunteers
- 20
- Year formed
- 2001
- State of legal domicile
- CA
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 July 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Romi Skolnik | President Officer | 5 | $0 |
| Susan Petroni | Vice President Officer | 0.5 | $0 |
| Christine Gramlich | Treasurer Officer | 5 | $0 |
| Erick Sugimura | Treasurer Officer | 5 | $0 |
| Marcy Castro | Secretary Officer | 1 | $0 |
| Cathy Dalrymple | Secretary Officer | 1 | $0 |
| Antonette Ciccarelli | Membership Coordinator Officer | 2 | $0 |
| Sheilah Brode | Banners Coordinator Officer | 2 | $0 |
| Mary Beth Ericson | Media: Coordinator Officer | 5 | $0 |
990 for the year ended July 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Romi Skolnik | President Officer | 2 | $0 |
| Susan Petroni | Vice President Officer | 1 | $0 |
| Alisa Jones | Secretary Officer | 1 | $0 |
| Leisha Baldwin | Membership Coordinator Officer | 0.5 | $0 |
| Laura Schneider | Treasurer Officer | 10 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 3149, MAMMOTH LAKES, CA 93546-3149
- In care of
- % PAM MAUPIN
- Principal officer (990 for 2024)
- Christine Gramlich, PO Box 3149, MHS Boosters, Mammoth Lakes, CA 93546
- Signed the 990
- Christine Gramlich, Treasurer
- Phone
- (760) 934-8541
- Website
- www.mhsboosters.org
California records
California keeps its own records of charities and corporations. Search them by EIN 77-0529260 or by the name MAMMOTH HIGH SCHOOL BOOSTER CLUB.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
MHS Boosters is a non-profit, all volunteer, parent-teacher-community organization. Our mission is to: Assist Mammoth High School by fostering cooperation and communication between parents, staff, students and the public, and to promote success in academics, athletics, and the arts.
Program accomplishments
- Athletic Program Support includes teams' general expenses, uniforms and equipment, referees, travel, recognition, and Athletic Director expenses.Expenses $104,366
- Academic Program Support includes Art Music, student clubs, academic and teacher requests, and teacher appreciation.Expenses $13,773
- Student Support includes senior class event expenses, student awards and scholarships.Expenses $46,656
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 July, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | July 31, 2026 | December 15, 2026 | Not due yet |
| 2024 | July 31, 2025 | December 15, 2025 | 990 on file |
| 2023 | July 31, 2024 | December 16, 2024 | 990 on file |
IRS record
- EIN
- 77-0529260
- 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
- 2002
- Accounting year ends
- July
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B80)
- Assets (IRS master file)
- $280,768
- Income (IRS master file)
- $247,364
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | July 2025 | $247,364 | $166,270 | $280,768 | XML |
| 990 | July 2024 | $314,965 | $310,290 | $200,119 | XML |
| 990 | July 2023 | $333,463 | $287,793 | $195,444 | IRS |
| 990 | July 2022 | – | – | – | IRS |
| 990-EZ | July 2021 | – | – | – | IRS |
| 990-EZ | July 2020 | – | – | – | IRS |
| 990-EZ | July 2019 | – | – | – | IRS |
| 990-EZ | July 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 77-0529260).
Questions about MAMMOTH HIGH SCHOOL BOOSTER CLUB
- What is the EIN of MAMMOTH HIGH SCHOOL BOOSTER CLUB?
- The employer identification number (EIN) of MAMMOTH HIGH SCHOOL BOOSTER CLUB is 77-0529260.
- Is MAMMOTH HIGH SCHOOL BOOSTER CLUB tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2002.
- Are donations to MAMMOTH HIGH SCHOOL BOOSTER CLUB tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MAMMOTH HIGH SCHOOL BOOSTER CLUB 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 MAMMOTH HIGH SCHOOL BOOSTER CLUB due?
- The return for tax year 2025 (the year ending July 31, 2026) is due December 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MAMMOTH HIGH SCHOOL BOOSTER CLUB last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended July 2025.
- Who is the principal officer of MAMMOTH HIGH SCHOOL BOOSTER CLUB?
- The 990 for the year ended July 31, 2025 names Christine Gramlich.
- Who are the officers and directors of MAMMOTH HIGH SCHOOL BOOSTER CLUB?
- The 990 for the year ended July 31, 2025 lists 9 people; 0 received compensation from the organization.
- How much revenue does MAMMOTH HIGH SCHOOL BOOSTER CLUB have?
- On its 990 for the year ended July 31, 2025 it reported revenue of $247,364, expenses of $166,270 and total assets of $280,768 at year end.
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