Marin Montessori School Inc
Public records show a registered, tax-exempt organization in good standing.
Points to look into
- It reported loans to or from officers, directors or other insiders.
These come from the organization's own tax return. There may be a good explanation; ask the charity.
What it says it does
THE MISSION OF MARIN MONTESSORI SCHOOL, IN ADHERENCE TO THE PRINCIPLES OF THE ASSOCIATION MONTESSORI INTERNATIONALE (AMI) AS ENVISIONED BY DR. MARIA MONTESSORI, IS TO NURTURE THE DEVELOPMENT OF EACH CHILD IN OUR DIVERSE COMMUNITY TO HIS OR HER FULLEST POTENTIAL (CONT ON SCH O) AN INDEPENDENT, RESPONSIBLE, COMPASSIONATE, LEARNED INDIVIDUAL WHO THINKS CRITICALLY AND REALIZES CLEARLY HIS OR HER ROLE IN THE WORLD. THUS, OUR MISSION IS TO PROVIDE EDUCATION FOR LIFE.
- Income
- $12.6 million
- Spending
- $11.7 million
- Spent on programs
- 74%
- Reserves
- -0.8 months of spending
- Largest source of income
- fees for its services, 82%
- Employees
- 83
- Volunteers
- 150
- Highest pay
- $368,972, head of school
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Financial health
Weak: 45 out of 100. Higher than 22% of charities in its peer group (education, $10m to $100m).
Reserves
0 of 35Spendable reserves are negative: it owes or has committed more than it holds.
Debt
10 of 20It owes 46% of what it owns.
Living within its means
15 of 15Income exceeded spending by 7% of income.
Income trend
5 of 15Income fell 11% on the year before.
Spending floor
15 of 1574% of spending went to programs and raising each dollar of donations cost 27 cents.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Governance
Strong: 90 out of 100. Higher than 25% of charities in its peer group (education, $10m to $100m).
Independent board
25 of 2514 of 14 voting board members are independent.
Conflict of interest policy
15 of 15Has a written conflict of interest policy.
Whistleblower policy
8 of 8Has a written whistleblower policy.
Record keeping policy
7 of 7Has a written policy on keeping and destroying records.
Board minutes
5 of 5Keeps minutes of board meetings.
Board sees the tax return
10 of 10Gave the board a copy of this return before filing it.
Pay set independently
5 of 5Sets its chief executive's pay through independent review and comparison.
Independent check of accounts
15 of 15Its accounts were audited by an independent accountant.
No reported misuse
0 of 10Reports at least one of: diversion of assets, excess benefits, loans to insiders.
Source: Form 990 for the year ending June 30, 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 (1)
- $8.6 million spent. EDUCATIONAL PROGRAMS: STUDENTS ENTERING MARIN MONTESSORI SCHOOL WILL ENJOY A PROGRAM UNIQUELY DESIGNED TO MEET THE DEVELOPMENTAL NEEDS OF STUDENTS FROM AGE 18 MONTHS TO GRADE 9 THE SCHOOL SERVES 250 STUDENTS, BEGINNING AT THE TODDLER LEVEL, CHILDREN WILL ENJOY A MONTESSORI EXPERIENCE IN A SMALL GROUP SETTING. THE ENVIRONMENT HAS BEEN CAREFULLY PREPARED TO MEET THE UNIQUE NEEDS OF THIS AGE GROUP. PRIMARY CLASSROOMS OFFER A UNIQUE CLASSROOM STRUCTURE WITH CHILDREN STAYING IN THE SAME CLASS FOR THREE TO FOUR YEARS, UNTIL THEY COMPLETE THE FULL PRIMARY CYCLE, AND ARE READY TO CONTINUE ON TO OUR ELEMENTARY LEVEL. ELEMENTARY LEVEL CHILDREN HAVE BUILT A SOLID FOUNDATION OF SKILLS THAT CAN NOW BE USED TO EXTEND THE ALMOST LIMITLESS HORIZON OF AN ELEMENTARY CLASSROOM. THE FACTORS, COMBINED WITH THE LITERACY AND NUMERACY (CONT ON SCH O) DEVELOPED IN THE PRIMARY CLASSROOMS, NOW FORM THE SPRINGBOARD FOR THE IN-DEPTH RESEARCH AND EXPERIMENTATION WHICH HOLD SUCH AN INTEREST FOR THESE CHILDREN. THE FINAL STAGE OF THE MARIN MONTESSORI SCHOOL EXPERIENCE IS OUR JUNIOR HIGH PROGRAM DESIGNED TO MEET THE NEEDS OF STUDENTS AGED 12-15, THESE SCHOLARS BENEFIT FROM WORKING THE LAND AT THE ST. VINCENTS CAMPUS, AND CONTINUING TO LEARN IN ENVIRONMENTS SPECIALLY PREPARED FOR THESE ADOLESCENT YOUTH.
Source: Form 990 for the year ending June 30, 2025, filed with the Internal Revenue Service. Rating method 2026.2. How we rate
Legitimacy checks
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.
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.
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.
Is it keeping up with its IRS filings? Passed.
Most recent return on file covers the year ending June 2025.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since August 1964.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated September 7, 2026.
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.