Nonprofit · EIN 22-2367416
WINSTON SCHOOL
Tax-exempt · SHORT HILLS, NJ 07078
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990 | $7,905,872 | $5,557,493 | $2,348,379 | $14,207,772 | $4,096,018 | $10,111,754 |
| August 31, 2024 | 990 | $5,708,121 | $5,404,455 | $303,666 | $12,397,474 | $4,634,099 | $7,763,375 |
| August 31, 2023 | 990 | $4,762,288 | $5,057,962 | -$295,674 | $11,880,667 | $4,652,598 | $7,228,069 |
Financial details: 990 for the year ended August 31, 2025
Revenue
- Contributions, gifts and grants
- $1,793,623
- Program service revenue
- $5,622,121
- Investment income
- $455,271
- Net income from fundraising events
- $34,857
- Other revenue
- $34,857
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $242,742
- Salaries, compensation and benefits (total)
- $3,933,153
- Professional fundraising fees
- $0
- Accounting fees
- $56,250
- Occupancy
- $412,524
- Depreciation
- $141,700
- Program services (functional)
- $3,448,789
- Management and general (functional)
- $2,108,704
Balance sheet and other
- Total assets, start of year
- $12,397,474
- Total assets, end of year
- $14,207,772
- Total liabilities, end of year
- $4,096,018
- Net assets, end of year
- $10,111,754
- Land, buildings and equipment
- $1,104,172
- Publicly traded securities
- $9,029,978
- Net assets without donor restrictions
- $7,344,961
- Net assets with donor restrictions
- $2,766,793
- Gross receipts
- $7,958,481
- Employees
- 42
- Volunteers
- 200
- Year formed
- 1983
- State of legal domicile
- NJ
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 August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JOSEPHINE DIEMOND | HEAD OF SCHOOL Officer | 40 | $257,613 |
| PARTHA CHATTERJEE | TRUSTEE Trustee or director | 5 | $0 |
| MATT DALY | TRUSTEE Trustee or director | 5 | $0 |
| JOMO DAVIS | TRUSTEE Trustee or director | 5 | $0 |
| SADIE ALBERTYN | TRUSTEE Trustee or director | 5 | $0 |
| LEAH ENTHOVEN | TRUSTEE Trustee or director | 5 | $0 |
| MARIE DYE | TRUSTEE Trustee or director | 5 | $0 |
| GREGG HEUBACH | TRUSTEE Trustee or director | 5 | $0 |
| WILLIAM CRAWLEY | TRUSTEE Trustee or director | 5 | $0 |
| MONIQUE DEGNAN | TRUSTEE Trustee or director | 5 | $0 |
| ANGIE DRAKULICH | TRUSTEE Trustee or director | 5 | $0 |
| LESLIE LLOYD | TRUSTEE Trustee or director | 5 | $0 |
| NICOLE SHEEHAN | TRUSTEE Trustee or director | 5 | $0 |
| CLAUDE SZYFER | TRUSTEE Trustee or director | 5 | $0 |
| KATE VAIL | TRUSTEE/SECRETARY Trustee or director, Officer | 5 | $0 |
6 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| GRACE BERTONE | TRUSTEE Trustee or director | 5 | $0 |
| LINDA LEIBOWITZ | TRUSTEE Trustee or director | 5 | $0 |
| JEN GURSKY | TRUSTEE Trustee or director | 5 | $0 |
| KIM CLARY | TRUSTEE/BOARD PRESIDENT Officer | 5 | $0 |
| LISA LEVINE | TRUSTEE/FIRST VP Officer | 5 | $0 |
| JASON LEMME | TRUSTEE/TREASURER Officer | 5 | $0 |
990 for the year ended August 31, 2024: 21 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JOSEPHINE DIEMOND | HEAD OF SCHOOL Officer | 40 | $183,620 |
| PARTHA CHATTERJEE | TRUSTEE Trustee or director | 5 | $0 |
| MATT DALY | TRUSTEE Trustee or director | 5 | $0 |
| JOMO DAVIS | TRUSTEE Trustee or director | 5 | $0 |
| SADIE ALBERTYN | TRUSTEE Trustee or director | 5 | $0 |
| LEAH ENTHOVEN | TRUSTEE Trustee or director | 5 | $0 |
| MARIE DYE | TRUSTEE Trustee or director | 5 | $0 |
| GREGG HEUBACH | TRUSTEE Trustee or director | 5 | $0 |
| WILLIAM CRAWLEY | TRUSTEE Trustee or director | 5 | $0 |
| MONIQUE DEGNAN | TRUSTEE Trustee or director | 5 | $0 |
| ANGIE DRAKULICH | TRUSTEE Trustee or director | 5 | $0 |
| LESLIE LLOYD | TRUSTEE Trustee or director | 5 | $0 |
| NICOLE SHEEHAN | TRUSTEE Trustee or director | 5 | $0 |
| CLAUDE SZYFER | TRUSTEE Trustee or director | 5 | $0 |
| KATE VAIL | TRUSTEE/SECRETARY Trustee or director, Officer | 5 | $0 |
| GRACE BERTONE | TRUSTEE Trustee or director | 5 | $0 |
| LINDA LEIBOWITZ | TRUSTEE Trustee or director | 5 | $0 |
| JEN GURSKY | TRUSTEE Trustee or director | 5 | $0 |
| KIM CLARY | TRUSTEE/BOARD PRESIDENT Officer | 5 | $0 |
| LISA LEVINE | TRUSTEE/FIRST VP Officer | 5 | $0 |
| JASON LEMME | TRUSTEE/TREASURER Officer | 5 | $0 |
990 for the year ended August 31, 2023: 21 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JOSEPHINE DIEMOND | HEAD OF SCHOOL Officer | 40 | $208,000 |
| PARTHA CHATTERJEE | TRUSTEE Trustee or director | 5 | $0 |
| MATT DALY | TRUSTEE Trustee or director | 5 | $0 |
| JOMO DAVIS | TRUSTEE Trustee or director | 5 | $0 |
| SADIE ALBERTYN | TRUSTEE Trustee or director | 5 | $0 |
| LEAH ENTHOVEN | TRUSTEE Trustee or director | 5 | $0 |
| MARIE DYE | TRUSTEE Trustee or director | 5 | $0 |
| GREGG HEUBACH | TRUSTEE Trustee or director | 5 | $0 |
| WILLIAM CRAWLEY | TRUSTEE Trustee or director | 5 | $0 |
| MONIQUE DEGNAN | TRUSTEE Trustee or director | 5 | $0 |
| ANGIE DRAKULICH | TRUSTEE Trustee or director | 5 | $0 |
| LESLIE LLOYD | TRUSTEE Trustee or director | 5 | $0 |
| NICOLE SHEEHAN | TRUSTEE Trustee or director | 5 | $0 |
| CLAUDE SZYFER | TRUSTEE Trustee or director | 5 | $0 |
| KATE VAIL | TRUSTEE/SECRETARY Trustee or director, Officer | 5 | $0 |
| GRACE BERTONE | TRUSTEE Trustee or director | 5 | $0 |
| LINDA LEIBOWITZ | TRUSTEE Trustee or director | 5 | $0 |
| JEN GURSKY | TRUSTEE Trustee or director | 5 | $0 |
| KIM CLARY | TRUSTEE/BOARD PRESIDENT Officer | 5 | $0 |
| LISA LEVINE | TRUSTEE/FIRST VP Officer | 5 | $0 |
| JASON LEMME | TRUSTEE/TREASURER Officer | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 100 EAST LN, SHORT HILLS, NJ 07078-3243
- Principal officer (990 for 2024)
- JOSEPHINE DIEMOND, 100 EAST LANE, SHORT HILLS, NJ 07078
- Signed the 990
- JOSEPHINE DIEMOND, HEAD OF SCHOOL
- Phone
- (973) 379-4114
- Return prepared by
- TABOR & COMPANY CPA'S LLC
Mission
TO ENABLE OUR STUDNETS TO MEET WITH CONFIDENCE, THE ACADEMIC AND SOCIAL CHALLENGES OF LIFE.
Program accomplishments
- THE SCHOOL PROVIDES INSTRUCTION AND EDUCATION IN ALL BASIC ACADEMIC SUBJECTS AS WELL AS ART AND PHYSICAL EDUCATION.Expenses $3,448,789 · revenue $5,622,121
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 August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990 on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990 on file |
IRS record
- EIN
- 22-2367416
- 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
- 1983
- Accounting year ends
- August
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B280)
- Assets (IRS master file)
- $14,207,772
- Income (IRS master file)
- $7,958,481
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | August 2025 | – | – | – | IRS |
| 990 | August 2024 | – | – | – | IRS |
| 990 | August 2023 | $4,762,288 | $5,057,962 | $11,880,667 | IRS |
| 990 | August 2022 | $5,139,255 | $4,841,640 | $11,679,457 | IRS |
| 990 | August 2021 | – | – | – | IRS |
| 990 | August 2020 | – | – | – | IRS |
| 990 | August 2019 | – | – | – | IRS |
| 990 | August 2018 | – | – | – | IRS |
990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.
Questions about WINSTON SCHOOL
- What is the EIN of WINSTON SCHOOL?
- The employer identification number (EIN) of WINSTON SCHOOL is 22-2367416.
- Is WINSTON SCHOOL tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
- Are donations to WINSTON SCHOOL tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does WINSTON 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 WINSTON SCHOOL due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did WINSTON SCHOOL last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended August 2025.
- Who is the principal officer of WINSTON SCHOOL?
- The 990 for the year ended August 31, 2025 names JOSEPHINE DIEMOND.
- Who are the officers and directors of WINSTON SCHOOL?
- The 990 for the year ended August 31, 2025 lists 21 people; 1 received compensation from the organization, the highest $257,613 (JOSEPHINE DIEMOND, HEAD OF SCHOOL).
- How much revenue does WINSTON SCHOOL have?
- On its 990 for the year ended August 31, 2025 it reported revenue of $7,905,872, expenses of $5,557,493 and total assets of $14,207,772 at year end.
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