Nonprofit · EIN 93-1278639
MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY
Tax-exempt · PORTLAND, OR 97236
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $12,995,242 | $11,350,729 | $1,644,513 | $19,841,997 | $12,806,539 | $7,035,458 |
| June 30, 2024 | 990 | $11,434,848 | $11,116,992 | $317,856 | $17,684,579 | $12,293,634 | $5,390,945 |
| June 30, 2023 | 990 | $10,562,034 | $9,786,458 | $775,576 | $16,625,177 | $11,614,792 | $5,010,385 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $11,434,153
- of which government grants
- $11,093,931
- Program service revenue
- $87,469
- Investment income
- $0
- Other revenue
- $1,473,620
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $384,336
- Other salaries and wages
- $5,539,785
- Salaries, compensation and benefits (total)
- $8,485,186
- Professional fundraising fees
- $0
- Legal fees
- $2,807
- Accounting fees
- $98,818
- Occupancy
- $517,107
- Travel
- $124,654
- Depreciation
- $518,765
- Program services (functional)
- $7,324,942
- Management and general (functional)
- $4,025,787
Balance sheet and other
- Total assets, start of year
- $17,684,579
- Total assets, end of year
- $19,841,997
- Total liabilities, end of year
- $12,806,539
- Net assets, end of year
- $7,035,458
- Land, buildings and equipment
- $2,389,587
- Net assets without donor restrictions
- $6,890,558
- Net assets with donor restrictions
- $144,900
- Gross receipts
- $12,995,242
- Employees
- 142
- Volunteers
- 84
- Year formed
- 1999
- State of legal domicile
- OR
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 | Other / benefits |
|---|---|---|---|---|
| STEPHANI WALKER | EXECUTIVE DIRECTOR Officer | 40 | $171,599 | $51,602 |
| JILL DOMINE | OPERATIONS DIRECTOR Officer | 40 | $115,882 | $29,415 |
| GARY DAVIS | MEMBER Trustee or director | 2 | $0 | $0 |
| TERESA SCHANTIN | MEMBER Trustee or director | 2 | $0 | $0 |
| JERRY SILBERT | MEMBER Trustee or director | 2 | $0 | $0 |
| SUSAN SPREADBOROUGH | MEMBER Trustee or director | 2 | $0 | $0 |
| BONNIE GROSSEN | CHAIRPRESIDENT Trustee or director, Officer | 2 | $0 | $0 |
990 for the year ended June 30, 2024: 7 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| STEPHANI WALKER | EXECUTIVE DIRECTOR Officer | 40 | $170,599 | $50,977 |
| JILL DOMINE | OPERATIONS DIRECTOR Officer | 40 | $106,000 | $30,775 |
| JERRY SILBERT | MEMBER Trustee or director | 2 | $0 | $0 |
| SUSAN SPREADBOROUGH | MEMBER Trustee or director | 2 | $0 | $0 |
| TERESA SCHANTIN | MEMBER Trustee or director | 2 | $0 | $0 |
| GARY DAVIS | MEMBER Trustee or director | 2 | $0 | $0 |
| BONNIE GROSSEN | CHAIRPRESIDENT Trustee or director, Officer | 2 | $0 | $0 |
990 for the year ended June 30, 2023: 8 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| STEPHANI WALKER | EXECUTIVE DIRECTOR Officer | 40 | $157,907 | $44,749 |
| JILL DOMINE | OPERATIONS DIRECTOR Officer | 40 | $96,155 | $31,524 |
| TERESA SCHANTIN | MEMBER Trustee or director | 1.5 | $0 | $0 |
| JERRY SILBERT | MEMBER Trustee or director | 1.5 | $0 | $0 |
| SUSAN SPREADBOROUGH | MEMBER Trustee or director | 1.5 | $0 | $0 |
| CHARLES ARTHUR | MEMBER Trustee or director | 1.5 | $0 | $0 |
| GARY DAVIS | MEMBER Trustee or director | 1.5 | $0 | $0 |
| BONNIE GROSSEN | CHAIR Trustee or director, Officer | 1.5 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 13717 SE DIVISION ST, PORTLAND, OR 97236-2841
- In care of
- % BONNIE GROSSEN
- Principal officer (990 for 2024)
- STEPHANI WALKER, 13809 SE DIVISION ST, PORTLAND, OR 97236
- Signed the 990
- BONNIE GROSSEN PHD, CHAIRPRESIDENT
- Phone
- (503) 252-3753
- Return prepared by
- PAULY ROGERS AND CO PC
Mission
OPERATION OF A PUBLIC CHARTER SCHOOL
Program accomplishments
- DIRECT AND ALLOCATION OF COSTS FOR OPERATION OF SIX CHARTER SCHOOLS.Expenses $7,324,942
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
- 93-1278639
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2010
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B24)
- Assets (IRS master file)
- $19,841,997
- Income (IRS master file)
- $12,995,242
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $12,995,242 | $11,350,729 | $19,841,997 | XML |
| 990 | June 2024 | $11,434,848 | $11,116,992 | $17,684,579 | XML |
| 990 | June 2023 | $10,562,034 | $9,786,458 | $16,625,177 | XML |
| 990 | June 2022 | $10,213,443 | $9,169,106 | $16,483,865 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | IRS |
| 990 | June 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 93-1278639).
Questions about MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY
- What is the EIN of MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY?
- The employer identification number (EIN) of MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY is 93-1278639.
- Is MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2010.
- Are donations to MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY 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 MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY 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 MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY 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 MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY?
- The 990 for the year ended June 30, 2025 names STEPHANI WALKER.
- Who are the officers and directors of MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY?
- The 990 for the year ended June 30, 2025 lists 7 people; 2 received compensation from the organization, the highest $171,599 (STEPHANI WALKER, EXECUTIVE DIRECTOR).
- How much revenue does MASTERY LEARNING INSTITUTE ABN ARTHUR ACADEMY have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $12,995,242, expenses of $11,350,729 and total assets of $19,841,997 at year end.
Other nonprofits in PORTLAND
- UNIVERSITY OF PORTLAND EIN 93-0401259 · last filed 990 for 2025
- LEWIS AND CLARK COLLEGE EIN 93-0386858 · last filed 990 for 2025
- REED INSTITUTE EIN 93-0386908 · last filed 990 for 2025
- OREGON HEALTH AND SCIENCE UNIVERSITY FOUNDATION EIN 23-7083114 · last filed 990 for 2025
- CATLIN GABEL SCHOOL EIN 93-0386804 · last filed 990 for 2025
- WARNER PACIFIC UNIVERSITY EIN 93-0386890 · last filed 990 for 2025
- RISE PARTNERSHIP EIN 88-3573790 · last filed 990 for 2024
- MULTNOMAH UNIVERSITY EIN 93-0398802 · last filed 990 for 2024