Nonprofit · EIN 86-2043687
A & C DE COSTER FOUNDATION
Tax-exempt · GREENWICH, CT 06830
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| January 31, 2026 | 990-PF | $1,377,846 | $473,972 | $903,874 | $9,816,633 | $0 | $9,816,633 |
| January 31, 2025 | 990-PF | $440,968 | $450,044 | -$9,076 | $8,912,759 | $0 | $8,912,759 |
| January 31, 2024 | 990-PF | $395,415 | $440,536 | -$45,121 | $8,921,835 | $0 | $8,921,835 |
Financial details: 990-PF for the year ended January 31, 2026
Revenue
- Contributions, gifts and grants
- $993,624
- Dividends
- $230,835
- Net gain from sales of assets
- $148,322
- Other income
- $5,065
Expenses
- Grants and similar amounts paid
- $454,342
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $9,312
- Disbursements for charitable purposes
- $458,998
- Excise tax on investment income
- $5,222
Balance sheet and other
- Total assets, start of year
- $8,912,759
- Total assets, end of year
- $9,816,633
- Total liabilities, end of year
- $0
- Net assets, end of year
- $9,816,633
- Fair market value of assets
- $11,179,735
- Qualifying distributions
- $458,998
- Net investment income
- $383,517
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-PF for the year ended January 31, 2026, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Alain De Coster 38 Woodside Drive, Greenwich, CT 06830 | Trustee | 10 | $0 |
| Catherine De Coster 38 Woodside Drive, Greenwich, CT 06830 | Trustee | 10 | $0 |
990-PF for the year ended January 31, 2025: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Alain De Coster 38 Woodside Drive, Greenwich, CT 06830 | Trustee | 10 | $0 |
| Catherine De Coster 38 Woodside Drive, Greenwich, CT 06830 | Trustee | 10 | $0 |
990-PF for the year ended January 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Alain De Coster 38 Woodside Drive, Greenwich, CT 06830 | Trustee | 10 | $0 |
| Catherine De Coster 38 Woodside Drive, Greenwich, CT 06830 | Trustee | 10 | $0 |
Address and contacts
- Address (IRS master file)
- 38 WOODSIDE DR, GREENWICH, CT 06830-6730
- Signed the 990-PF
- Alain De Coster, Trustee
- Phone
- (203) 869-1200
- Return prepared by
- Cummings & Lockwood LLC
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in January, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | January 31, 2026 | June 15, 2026 | 990-PF on file |
| 2024 | January 31, 2025 | June 16, 2025 | 990-PF on file |
| 2023 | January 31, 2024 | June 17, 2024 | 990-PF on file |
IRS record
- EIN
- 86-2043687
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 2021
- Accounting year ends
- January
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $9,816,633
- Income (IRS master file)
- $3,561,200
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | January 2026 | $1,377,846 | $473,972 | $9,816,633 | XML |
| 990-PF | January 2025 | $440,968 | $450,044 | $8,912,759 | XML |
| 990-PF | January 2024 | $395,415 | $440,536 | $8,921,835 | XML |
| 990-PF | January 2023 | – | – | – | IRS |
| 990-PF | January 2022 | – | – | – | 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 86-2043687).
Questions about A & C DE COSTER FOUNDATION
- What is the EIN of A & C DE COSTER FOUNDATION?
- The employer identification number (EIN) of A & C DE COSTER FOUNDATION is 86-2043687.
- Is A & C DE COSTER FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2021.
- Are donations to A & C DE COSTER FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does A & C DE COSTER FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of A & C DE COSTER FOUNDATION due?
- The return for tax year 2026 (the year ending January 31, 2027) is due June 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did A & C DE COSTER FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended January 2026.
- Who are the officers and directors of A & C DE COSTER FOUNDATION?
- The 990-PF for the year ended January 31, 2026 lists 2 people; 0 received compensation from the organization.
- How much revenue does A & C DE COSTER FOUNDATION have?
- On its 990-PF for the year ended January 31, 2026 it reported revenue of $1,377,846, expenses of $473,972 and total assets of $9,816,633 at year end.
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