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Mammoth High School Booster Club

EIN 77-0529260 · Mammoth Lakes, CA

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

LegitimacyPassesRegistration and standingFinancial healthFair59 out of 100GovernanceFair62 out of 100Impact evidenceDescribes programsHow well its results are evidenced

What it says it does

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.

Income
$247,364
Spending
$166,270
Spent on programs
99%
Reserves
0 months of spending
Largest source of income
donations and private grants, 96%
Employees
0
Volunteers
20

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

Financial health

Fair: 59 out of 100. Higher than 23% of charities in its peer group (education, under $250k).

  • Reserves

    4 of 35

    Spendable reserves would cover 0.0 months of spending.

  • Debt

    20 of 20

    It owes 0% of what it owns.

  • Living within its means

    15 of 15

    Income exceeded spending by 33% of income.

  • Income trend

    5 of 15

    Income fell 21% on the year before.

  • Spending floor

    15 of 15

    99% of spending went to programs and raising each dollar of donations cost 0 cents.

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

Governance

Fair: 62 out of 100. Higher than 47% of charities in its peer group (education, under $250k).

  • Independent board

    25 of 25

    10 of 10 voting board members are independent.

  • Conflict of interest policy

    0 of 15

    Reports no written conflict of interest policy.

  • Whistleblower policy

    0 of 8

    Reports no written whistleblower policy.

  • Record keeping policy

    0 of 7

    Reports no written policy on keeping and destroying records.

  • Board minutes

    5 of 5

    Keeps minutes of board meetings.

  • Board sees the tax return

    10 of 10

    Gave the board a copy of this return before filing it.

  • No reported misuse

    10 of 10

    Reports no diversion of assets, excess benefits or loans to insiders.

Source: Form 990 for the year ending July 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. $104,366 spent. Athletic Program Support includes teams' general expenses, uniforms and equipment, referees, travel, recognition, and Athletic Director expenses.
  2. $13,773 spent. Academic Program Support includes Art Music, student clubs, academic and teacher requests, and teacher appreciation.
  3. $46,656 spent. Student Support includes senior class event expenses, student awards and scholarships.

Source: Form 990 for the year ending July 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 September 7, 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 September 30, 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 September 10, 2026.

  4. Is it keeping up with its IRS filings? Passed.

    Most recent return on file covers the year ending July 2025.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.

  5. How long has it been tax-exempt? Passed.

    Recognized by the IRS since October 2002.

    Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 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 7, 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.