Nonprofit · EIN 88-1322947
CHESTERTON ACADEMY OF ST LOUIS
Tax-exempt · SAINT LOUIS, MO 63141
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $892,588 | $740,578 | $152,010 | $687,516 | $6,780 | $680,736 |
| June 30, 2024 | 990 | $636,367 | $431,698 | $204,669 | $534,632 | $292 | $534,340 |
| June 30, 2023 | 990 | $398,443 | $76,481 | $321,962 | $329,672 | $0 | $329,672 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $304,786
- Program service revenue
- $586,551
- Investment income
- $27
- Net income from fundraising events
- -$12,144
- Net income from gaming
- $12,500
- Net income from sales of inventory
- $868
- Other revenue
- $1,224
Expenses
- Grants and similar amounts paid
- $35,360
- Compensation of officers, directors and key employees
- $90,550
- Other salaries and wages
- $309,240
- Salaries, compensation and benefits (total)
- $429,336
- Professional fundraising fees
- $737
- Accounting fees
- $16,509
- Occupancy
- $107,664
- Travel
- $7,409
- Program services (functional)
- $590,155
- Management and general (functional)
- $140,824
- Fundraising (functional)
- $9,599
Balance sheet and other
- Total assets, start of year
- $534,632
- Total assets, end of year
- $687,516
- Total liabilities, end of year
- $6,780
- Net assets, end of year
- $680,736
- Net assets without donor restrictions
- $680,736
- Gross receipts
- $962,910
- Employees
- 13
- Volunteers
- 130
- Year formed
- 2022
- State of legal domicile
- MO
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.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Matthew Schimpf | Headmaster Officer | 40 | $89,275 |
| Maria Jansen | Board Chair Trustee or director, Officer | 30 | $0 |
| Danielle Morgenthaler | Board Vice Chair Trustee or director, Officer | 4 | $0 |
| Frank O'Brien III | Board Treasurer Trustee or director, Officer | 3 | $0 |
| Michael Quinlan | Board Secretary Trustee or director, Officer | 2 | $0 |
| Christina Heddell | Board Member Trustee or director | 20 | $0 |
| John Heithaus | Board Member (May-June) Trustee or director | 0.75 | $0 |
| John Stirton | Board Member Trustee or director | 3 | $0 |
990 for the year ended June 30, 2024: 7 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Matthew Schimpf | Headmaster Officer | 40 | $49,500 |
| Maria Jansen | Board Chair Trustee or director, Officer | 30 | $0 |
| Danielle Morgenthaler | Board Vice Chair Trustee or director, Officer | 4 | $0 |
| Frank O'Brien III | Board Treasurer Trustee or director, Officer | 3 | $0 |
| Michael Quinlan | Board Secretary Trustee or director, Officer | 2 | $0 |
| Christina Heddell | Board Member Trustee or director | 20 | $0 |
| John Stirton | Board Member Trustee or director | 3 | $0 |
990 for the year ended June 30, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARIA JANSEN | Chairman Trustee or director, Officer | 40 | $0 |
| DANIELLE MORGENTHALER | VICE CHAIRMAN Trustee or director, Officer | 15 | $0 |
| FRANK O'BRIEN | Treasurer Trustee or director, Officer | 15 | $0 |
| JOHN STIRTON MD | Director Trustee or director | 15 | $0 |
| CHRISTINA HEDDELL MTS | Director Trustee or director | 15 | $0 |
| MICHAEL QUINLAN | Secretary Trustee or director, Officer | 15 | $0 |
| ALEXANDER SCHIMPF PhD | HEADMASTER Trustee or director, Officer | 40 | $0 |
| FR MICHAEL RENNIER | CHAPLAIN Officer | 15 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 410410, SAINT LOUIS, MO 63141-0410
- Mailing address (990-N for 2021)
- PO BOX 410410, SAINT LOUIS MO 63141
- Principal officer (990 for 2024)
- Maria Jansen, PO Box 410410, Saint Louis, MO 63141
- Principal officer (990-N for 2021)
- MARIA JANSEN, PO BOX 410410, SAINT LOUIS MO 63141
- Signed the 990
- Frank O'Brien, Treasurer
- Phone
- (877) 829-5500
- Website
- CHESTERTONACADEMYSTL.ORG
- Return prepared by
- Custos CPA
Mission
Under the patronage of G.K. Chesterton and in partnership with families and the Church, the mission of Chesterton Academy of St. Louis is to foster a Culture of Life by forming a new generation of joyful leaders and saints, educated in the classical tradition and grounded in the truths of the Catholic faith.
Program accomplishments
- Going into Chesterton Academy of St. Louis's (CASTL) second year, the school doubled in size, bringing in more tuition revenue, but also increasing the expenses by requiring more faculty and expanding the lease. CASTL was able to continue providing daily Mass for and frequent opportunities for Confession for the students. CASTL continues to have a very strong base of dedicated volunteers who help provide amazing experience experiences for the students at a reasonable cost.Expenses $590,155 · grants $35,360 · revenue $586,551
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 year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 88-1322947
- 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
- 2023
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B25)
- Assets (IRS master file)
- $687,516
- Income (IRS master file)
- $962,910
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $892,588 | $740,578 | $687,516 | XML |
| 990 | June 2024 | $636,367 | $431,698 | $534,632 | IRS |
| 990 | June 2023 | $398,443 | $76,481 | $329,672 | XML |
| 990-N for 2021 Officer: MARIA JANSEN | June 30, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
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 88-1322947).
Questions about CHESTERTON ACADEMY OF ST LOUIS
- What is the EIN of CHESTERTON ACADEMY OF ST LOUIS?
- The employer identification number (EIN) of CHESTERTON ACADEMY OF ST LOUIS is 88-1322947.
- Is CHESTERTON ACADEMY OF ST LOUIS tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2023.
- Are donations to CHESTERTON ACADEMY OF ST LOUIS tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does CHESTERTON ACADEMY OF ST LOUIS 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 CHESTERTON ACADEMY OF ST LOUIS 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 CHESTERTON ACADEMY OF ST LOUIS 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 CHESTERTON ACADEMY OF ST LOUIS?
- The 990 for the year ended June 30, 2025 names Maria Jansen.
- Who are the officers and directors of CHESTERTON ACADEMY OF ST LOUIS?
- The 990 for the year ended June 30, 2025 lists 8 people; 1 received compensation from the organization, the highest $89,275 (Matthew Schimpf, Headmaster).
- How much revenue does CHESTERTON ACADEMY OF ST LOUIS have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $892,588, expenses of $740,578 and total assets of $687,516 at year end.
Other nonprofits in SAINT LOUIS
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- MARYVILLE UNIVERSITY OF ST LOUIS EIN 43-0653369 · last filed 990 for 2025
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- PRINCIPIA CORPORATION EIN 43-0652667 · last filed 990 for 2025
- MARY INSTITUTE AND SAINT LOUIS COUNTRY DAY SCHOOL EIN 43-0653366 · last filed 990 for 2025
- MISSOURI BAPTIST UNIVERSITY EIN 43-0817015 · last filed 990 for 2025
- CONFLUENCE ACADEMY EIN 68-0557741 · last filed 990 for 2025
- JOHN BURROUGHS SCHOOL EIN 43-0652619 · last filed 990 for 2025