Aidan Montessori School
Public records show a registered, tax-exempt organization in good standing.
What it says it does
THE MISSION OF AIDAN MONTESSORI SCHOOL (THE SCHOOL) IS TO CREATE AND SUSTAIN AN OPTIMUM MONTESSORI EDUCATIONAL ENVIRONMENT TO ENABLE EACH CHILD TO REALIZE THEIR RICHEST POTENTIAL FOR LEARNING AND TO BECOME AN INDEPENDENT, SELF-MOTIVATED, AND CONTRIBUTING MEMBER OF THE WORLD COMMUNITY. THE MISSION IS BEST ACCOMPLISHED BY: - PROVIDING A CURRICULUM ADHERING TO RIGOROUS MONTESSORI STANDARDS, INCORMED BY CURRENT THINKING AND RESEARCH ON CHILD DEVELOPMENT AND LEARNING; - FOSTERING A LOVE OF LEARNING; - EMBRACING A DIVERSE STUDENT BODY IN WHICH STUDENTS EXPERIENCE AND LEARN TO RESPECT ETHNIC, CULTURAL, ECONOMIC AND OTHER DIFFERENCES AND TO SEEK THE COMMON GROUND; - RECOGNIZING THAT PERSONAL GROWTH INVOLVES RESPONSIBILITY TOWARD OTHERS AND TOWARD THE EARTH; AND - FACILITATING THE INVOLVEMENT OF PARENTS, TEACHERS, STUDENTS, AND THE LARGER COMMUNITY.
- Income
- $7.0 million
- Spending
- $6.8 million
- Spent on programs
- 71%
- Reserves
- 2.9 months of spending
- Largest source of income
- fees for its services, 88%
- Employees
- 61
- Volunteers
- 40
- Highest pay
- $257,583, 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
Fair: 60 out of 100. Higher than 41% of charities in its peer group (education, $1m to $10m).
Reserves
10 of 35Spendable reserves would cover 2.9 months of spending.
Debt
5 of 20It owes 54% of what it owns.
Living within its means
15 of 15Income exceeded spending by 3% of income.
Income trend
15 of 15Income rose 4% on the year before.
Spending floor
15 of 1571% of spending went to programs and raising each dollar of donations cost 32 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: 100 out of 100. Higher than 74% of charities in its peer group (education, $1m to $10m).
Independent board
25 of 2515 of 15 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
10 of 10Reports no diversion of assets, excess benefits or 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 (4)
- $4.3 million spent. MONTESSORI PROGRAM: MONTESSORI SCHOOL FOR CHILDREN 18 MONTHS TO 12 YEARS OF AGE, AFFILIATED WITH ASSOCIATION MONTESSORI INTERNATIONAL. PROGRAM INCLUDES TODDLER (YOUNG CHILDRENS COMMUNITY), PRIMARY AND ELEMENTARY EDUCATION. THE SCHOOL EMBRACES THE MONTESSORI PEDAGOGY, WHICH IS BASED ON UNIVERSAL PRINCIPLES OF CHILD DEVELOPMENT, AS SOUND THEORY AND PRACTICE FOR TEACHING AND LEARNING.
- $379,310 spent. AFTER SCHOOL PROGRAMS: ART, MUSIC, PHYSICAL EDUCATION, AND LANGUAGE PROGRAMS. THE CLASSES MAY INCLUDE DISCOVERY PROGRAMS. THESE PROGRAMS ARE CREDITED FOR INCREASED OPPORTUNITIES TO SOCIALIZE AND TO TRY SOMETHING NEW.
- $166,822 spent. AIDAN EXPLORERS - SUMMER CAMP: A DAY CAMP FEATURING ADVENTURES THROUGHOUT THE ENTIRE WASHINGTON DC AREA OPEN TO CURRENT AIDAN ELEMENTARY STUDENTS WITH A VARIETY OF ACTIVITIES THAT RANGE FROM CANOEING ON THE POTOMAC TO EXPLORING DC MUSEUMS.
- $728 spent. AIDAN PROGRAM FOR FAMILIES.
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 October 13, 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 October 13, 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 October 13, 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 October 13, 2026.
How long has it been tax-exempt? Passed.
Recognized by the IRS since April 1963.
Source: Exempt Organizations Business Master File, Internal Revenue Service, file dated October 13, 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 21, 2026.
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