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Nonprofit · EIN 74-1486232

POST OAK SCHOOL

Tax-exempt · BELLAIRE, TX 77401

Financials

$15.8M$15.3M2022$17M$16.2M2023$16.7M$16.6M2024
Revenue Expenses · by fiscal year end
Financials of POST OAK SCHOOL by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$16,741,721$16,562,486$179,235$35,504,376$12,187,376$23,317,000
June 30, 2024990$16,962,647$16,219,613$743,034$35,791,780$13,030,918$22,760,862
June 30, 2023990$15,815,791$15,312,868$502,923$34,654,794$12,970,451$21,684,343
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$845,028
Program service revenue
$15,628,670
Investment income
$319,062
Net income from fundraising events
-$51,039
Other revenue
-$51,039

Expenses

Grants and similar amounts paid
$1,354,821
Compensation of officers, directors and key employees
$691,950
Other salaries and wages
$7,728,176
Salaries, compensation and benefits (total)
$10,438,226
Professional fundraising fees
$0
Legal fees
$4,033
Accounting fees
$28,705
Occupancy
$1,004,990
Depreciation
$970,957
Program services (functional)
$13,833,345
Management and general (functional)
$2,210,621
Fundraising (functional)
$518,520

Balance sheet and other

Total assets, start of year
$35,791,780
Total assets, end of year
$35,504,376
Total liabilities, end of year
$12,187,376
Net assets, end of year
$23,317,000
Land, buildings and equipment
$21,296,444
Publicly traded securities
$4,570,479
Net assets without donor restrictions
$20,809,202
Net assets with donor restrictions
$2,507,798
Gross receipts
$16,821,760
Employees
152
Volunteers
125
Year formed
1964
State of legal domicile
TX

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
Maura JoycePresident, Head of School
Trustee or director, Officer
60$437,870$51,733
Kelly VaughnCFO
Officer
60$220,546$44,335
James QuillinAdolescent Director
Highest-paid employee
50$164,899$9,873
Emily MilaniController
Highest-paid employee
50$126,107$15,743
Mirna Andrade-SalgadoIT Director
Highest-paid employee
50$117,910$15,216
Matthew ThompsonFacilities Director
Highest-paid employee
50$112,031$14,906
Miriam WintonEarly Childhood Director
Highest-paid employee
50$101,638$15,029
Whitney WalshChair
Trustee or director, Officer
10$0$0
Susanna KartyeSecretary
Trustee or director, Officer
5$0$0
Troy ThackerTreasurer
Trustee or director, Officer
5$0$0
Lara Leigh BergoonTrustee
Trustee or director
3$0$0
Rob BruceTrustee
Trustee or director
3$0$0
TJ FarnsworthTrustee
Trustee or director
3$0$0
Judy LeTrustee
Trustee or director
3$0$0
Gabriel LoperenaTrustee
Trustee or director
3$0$0
5 more people on this return
NameTitleHours / weekCompensation
Jennifer NortenTrustee
Trustee or director
3$0
Oscar ParadaTrustee
Trustee or director
3$0
Damon PutmanTrustee
Trustee or director
3$0
Sabina WaliaTrustee
Trustee or director
3$0
Jordan ZweigTrustee
Trustee or director
3$0
990 for the year ended June 30, 2024: 23 people
NameTitleHours / weekCompensationOther / benefits
Maura JoycePresident, Head of School
Trustee or director, Officer
60$335,638$50,434
Kelly VaughnCFO
Officer
60$211,815$19,711
James QuillinHS Director
Highest-paid employee
50$152,813$9,155
Emily MilaniController
Highest-paid employee
45$120,388$14,265
Mirna Andrade-SalgadoDirector of Technology
Highest-paid employee
55$113,683$13,847
Matt ThompsonFacilities Director
Highest-paid employee
45$107,411$13,828
Christina Kopanidis-CantuDevelopment Director
Highest-paid employee
45$100,359$14,105
Whitney WalshChair
Trustee or director, Officer
10$0$0
Rochelle TafollaSecretary
Trustee or director, Officer
5$0$0
Rick EvansTreasurer
Trustee or director, Officer
5$0$0
Laura L BergoonTrustee
Trustee or director
3$0$0
Rob BruceTrustee
Trustee or director
3$0$0
TJ FarnsworthTrustee
Trustee or director
3$0$0
Susanna KartyeTrustee
Trustee or director
3$0$0
Judy LeTrustee
Trustee or director
3$0$0
Gabriel LoperenaTrustee
Trustee or director
3$0$0
Jennifer NortenTrustee
Trustee or director
3$0$0
Oscar ParadaTrustee
Trustee or director
3$0$0
Damon PutmanTrustee
Trustee or director
3$0$0
Troy ThackerTrustee
Trustee or director
3$0$0
Sabina WaliaTrustee
Trustee or director
3$0$0
Alison WongTrustee
Trustee or director
3$0$0
Jordan ZweigTrustee
Trustee or director
3$0$0
990 for the year ended June 30, 2023: 22 people
NameTitleHours / weekCompensationOther / benefits
Maura JoycePresident, Head of School
Trustee or director, Officer
60$326,014$47,276
Kelly VaughnCFO
Officer
60$198,164$18,363
James QuillinHS Director
Highest-paid employee
50$135,957$12,856
Emily MilaniController
Highest-paid employee
45$111,505$13,421
Mirna Andrade-SalgadoDirector of Technology
Highest-paid employee
55$108,499$12,969
Matt ThompsonFacilities Director
Highest-paid employee
45$104,375$12,680
Alison WongChair
Trustee or director, Officer
10$0$0
Rochelle TafollaSecretary
Trustee or director, Officer
5$0$0
Rick EvansTreasurer
Trustee or director, Officer
5$0$0
Sebha AliTrustee
Trustee or director
3$0$0
Rob BruceTrustee
Trustee or director
3$0$0
Raj ChelapurathTrustee
Trustee or director
3$0$0
TJ FarnsworthTrustee
Trustee or director
3$0$0
Susanna KartyeTrustee
Trustee or director
3$0$0
Judy LeTrustee
Trustee or director
3$0$0
Gabriel LoperenaTrustee
Trustee or director
3$0$0
Mark MartinTrustee
Trustee or director
3$0$0
Oscar ParadaTrustee
Trustee or director
3$0$0
Rona SonabendTrustee
Trustee or director
3$0$0
Troy ThackerTrustee
Trustee or director
3$0$0
Whitney WalshTrustee
Trustee or director
3$0$0
Jordan ZweigTrustee
Trustee or director
3$0$0

Address and contacts

Address (IRS master file)
4600 BISSONNET ST, BELLAIRE, TX 77401-3002
Principal officer (990 for 2024)
Maura Joyce, 4600 Bissonnet, Bellaire, TX 77401
Signed the 990
Maura Joyce, President
Phone
(713) 661-6688
Return prepared by
Blazek & Vetterling

Mission

See Schedule OThe mission of The Post Oak School is to prepare an outstanding Montessori environment that fosters collaboration, cooperation and peace and to provide experiences that promote curiosity, inquiry and engagement. Designed according to the physical, emotional, social, and intellectual characteristics and needs of the learner, our methods guide and nurture each individual from infancy to adulthood. The School's approach is grounded in the principles of AMI Montessori education.

990 for the year ended June 30, 2025

Program accomplishments

  • The Post Oak School provides a comprehensive Montessori education, based on the principles and practices of Association Montessori Internationale (AMI) and accredited by the International Schools of the Southwest (ISAS), to a diverse population of approximately 500 students from infancy to high school. In keeping with Dr. Montessori's ideals, children work in multi-age classrooms with a high level of freedom in choosing their own foundations in language, math, geography, science, music, and other disciplines. The Middle School and High School are located on a second campus in the museum district of Houston which incorporates the principles of Dr. Montessori as well as the International Baccalaureate.
    Expenses $13,833,345 · grants $1,354,821 · revenue $15,628,670
  • The Post Oak School offers an extensive program of parent education. A free series of four classes, repeated throughout the year, offers general information about Montessori education to both prospective parents and interested visitors. The infant-parent program helps parents of toddlers raise happy, confident children. A variety of other classes, lectures, and other presentations during the school year, some free and open to the public and others by reservation, afford a variety of perspectives on the School's primary purpose of raising intelligent, confident, caring, and self-motivated lifelong learners.
  • Community service is deeply ingrained in the Montessori curriculum, from infancy through adolescence. By the time of Middle School, the entire class spends a half day each week working in small groups at various service agencies around Houston. Elementary students have ongoing relationships with other agencies, whether through regular site visits for volunteer work or by working on projects to benefit needy people in more distant places. Older children routinely learn the benefits and blessing of aiding others in the school's multi-age classrooms. Even the infants, living in a small tight-knit community, discover early on that other people have feelings.
  • Faculty and Staff regularly present at national Montessori conferences and attend both national and international Montessori congresses. The School's administration has led the formation of a national Montessori administrators association. Multiple organizations, whether devoted to Montessori or traditional education, like the North American Montessori Teachers Association (NAMTA) or Independent School Management (ISM) recommend Post Oak materials, policies, and procedures as models of best practices for similar schools.

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
74-1486232
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1972
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B820)
Assets (IRS master file)
$35,504,376
Income (IRS master file)
$16,821,760

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$16,741,721$16,562,486$35,504,376IRS
990June 2024$16,962,647$16,219,613$35,791,780IRS
990June 2023$15,815,791$15,312,868$34,654,794XML
990June 2022$14,910,457$13,930,511$33,883,202IRS
990June 2021–––IRS
990June 2020–––IRS
990June 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 74-1486232).

Questions about POST OAK SCHOOL

What is the EIN of POST OAK SCHOOL?
The employer identification number (EIN) of POST OAK SCHOOL is 74-1486232.
Is POST OAK SCHOOL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1972.
Are donations to POST OAK SCHOOL tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does POST OAK SCHOOL 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 POST OAK SCHOOL due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did POST OAK SCHOOL last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of POST OAK SCHOOL?
The 990 for the year ended June 30, 2025 names Maura Joyce.
Who are the officers and directors of POST OAK SCHOOL?
The 990 for the year ended June 30, 2025 lists 20 people; 7 received compensation from the organization, the highest $437,870 (Maura Joyce, President, Head of School).
How much revenue does POST OAK SCHOOL have?
On its 990 for the year ended June 30, 2025 it reported revenue of $16,741,721, expenses of $16,562,486 and total assets of $35,504,376 at year end.

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