Nonprofit · EIN 31-1538837
ROCKSIDE FOUNDATION
Tax-exempt · NEW ROCHELLE, NY 10801
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $734 | $2,250,000 | -$2,249,266 | $185,010 | $0 | $185,010 |
| December 31, 2024 | 990 | $826,206 | $824,672 | $1,534 | $2,434,276 | $0 | $2,434,276 |
| December 31, 2023 | 990 | $1,566,409 | $1,522,891 | $43,518 | $2,432,742 | $0 | $2,432,742 |
| December 31, 2021 | 990 | $315,687 | $315,678 | $9 | $2,343,635 | $0 | $2,343,635 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $0
- Investment income
- $734
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Management and general (functional)
- $2,250,000
Balance sheet and other
- Total assets, start of year
- $2,434,276
- Total assets, end of year
- $185,010
- Total liabilities, end of year
- $0
- Net assets, end of year
- $185,010
- Net assets without donor restrictions
- $185,010
- Gross receipts
- $734
- Employees
- 0
- Volunteers
- 0
- Year formed
- 1997
- State of legal domicile
- OH
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 December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs |
|---|---|---|---|---|
| Gregory A Byrnes | Vice President Officer | 0.15 | $0 | $67,404 |
| Arthur Kim C Rivera | Treasurer Officer | 1 | $0 | $64,000 |
| Michael A Coan | Secretary Trustee or director, Officer | 2 | $0 | $0 |
| Gregory G Giebler | Trustee Trustee or director | 0.15 | $0 | $0 |
| Anthony M McCarthy | President Officer | 0.15 | $0 | $0 |
990 for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Gregory A Byrnes | Vice President Officer | 0.15 | $0 | $67,270 | $0 |
| Arthur Kim C Rivera | Treasurer Officer | 1 | $0 | $28,403 | $20,400 |
| Michael A Coan | Secretary Trustee or director, Officer | 2 | $0 | $17,000 | $0 |
| Gregory G Giebler | Trustee Trustee or director | 0.15 | $0 | $0 | $0 |
| Anthony M McCarthy | President Officer | 0.15 | $0 | $0 | $0 |
990 for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Gregory A Byrnes | Vice President Officer | 0.15 | $0 | $67,143 | $0 |
| Arthur Kim C Rivera | Treasurer Officer | 1 | $0 | $17,000 | $18,000 |
| Michael A Coan | Secretary Trustee or director, Officer | 2 | $0 | $17,000 | $14,400 |
| Gregory G Giebler | Trustee Trustee or director | 0.15 | $0 | $0 | $29,400 |
| Anthony M McCarthy | President Officer | 0.15 | $0 | $0 | $0 |
990 for the year ended December 31, 2021: 5 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| Gregory A Byrnes | Vice President Officer | 0.15 | $0 | $66,608 | $0 |
| Michael A Coan | Secretary Trustee or director, Officer | 2 | $0 | $16,920 | $15,000 |
| Arthur Kim C Rivera | Treasurer Officer | 1 | $0 | $16,920 | $15,000 |
| Gregory G Giebler | Trustee Trustee or director | 0.15 | $0 | $0 | $0 |
| Anthony M McCarthy | President Officer | 0.15 | $0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 56 HARRISON ST STE 401, NEW ROCHELLE, NY 10801-6560
- In care of
- % ARTHUR KIM C RIVERA
- Principal officer (990 for 2025)
- Anthony M McCarthy, 139 East 34th Street, New York, NY 100164704
- Signed the 990
- Arthur Kim Rivera, Treasurer
- Phone
- (914) 632-3778
Mission
Support organization
Program accomplishments
- Provide financial support to supported organization.0
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 31-1538837
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Supporting organization (509(a)(3))
- Donations deductible (Pub 78)
- Supporting organization of unknown type
- Exempt since
- 1997
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T110)
- Assets (IRS master file)
- $185,010
- Income (IRS master file)
- $734
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $734 | $2,250,000 | $185,010 | IRS |
| 990 | December 2024 | $826,206 | $824,672 | $2,434,276 | XML |
| 990 | December 2023 | $1,566,409 | $1,522,891 | $2,432,742 | XML |
| 990 | December 2022 | $369,813 | $324,224 | $2,389,224 | IRS |
| 990 | December 2021 | $315,687 | $315,678 | $2,343,635 | XML |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990 | December 2017 | – | – | – | 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 31-1538837).
Questions about ROCKSIDE FOUNDATION
- What is the EIN of ROCKSIDE FOUNDATION?
- The employer identification number (EIN) of ROCKSIDE FOUNDATION is 31-1538837.
- Is ROCKSIDE FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
- Are donations to ROCKSIDE FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
- Which annual return does ROCKSIDE FOUNDATION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of ROCKSIDE FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did ROCKSIDE FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of ROCKSIDE FOUNDATION?
- The 990 for the year ended December 31, 2025 names Anthony M McCarthy.
- Who are the officers and directors of ROCKSIDE FOUNDATION?
- The 990 for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does ROCKSIDE FOUNDATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $734, expenses of $2,250,000 and total assets of $185,010 at year end.
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