Nonprofit · EIN 23-2354559
ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION
Tax-exempt · ANNAPOLIS, MD 21401
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $108,327 | $148,978 | -$40,651 | $1,476,777 | $0 | $1,476,777 |
| December 31, 2024 | 990-PF | $75,250 | $103,547 | -$28,297 | $1,517,428 | $0 | $1,517,428 |
| December 31, 2023 | 990-PF | $17,747 | $128,247 | -$110,500 | $1,545,725 | $0 | $1,545,725 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $66,748
- Net gain from sales of assets
- $41,579
Expenses
- Grants and similar amounts paid
- $0
- Disbursements for charitable purposes
- $148,978
- Excise tax on investment income
- $1,506
Balance sheet and other
- Total assets, start of year
- $1,517,428
- Total assets, end of year
- $1,476,777
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,476,777
- Fair market value of assets
- $1,946,075
- Qualifying distributions
- $148,978
- Net investment income
- $108,327
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 December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dr Jennifer Haythornthwaite 7 Gladden Rd, Annapolis, MD 21402 | President | 2 | $0 |
| Sheila H Glesmann 22 Belleview Dr, Severna Park, MD 21146 | Director | 0 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dr Jennifer Haythornthwaite 7 Gladden Rd, Annapolis, MD 21402 | President | 2 | $0 |
| Sheila H Glesmann 22 Belleview Dr, Severna Park, MD 21146 | Director | 0 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Dr Jennifer Haythornthwaite 7 Gladden Rd, Annapolis, MD 21402 | President | 2 | $0 |
| Sheila H Glesmann 22 Belleview Dr, Severna Park, MD 21146 | Director | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 7 GLADDEN RD, ANNAPOLIS, MD 21401-1120
- Signed the 990-PF
- Dr Jennifer Haythornthwaite, President
- Phone
- (443) 858-2811
- Return prepared by
- Cassilly & Appel Inc
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 23-2354559
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private operating foundation
- Donations deductible (Pub 78)
- Private operating foundation, 50% limit
- Exempt since
- 1986
- Accounting year ends
- December
- Files
- Form 990-PF
- Assets (IRS master file)
- $1,476,777
- Income (IRS master file)
- $648,237
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $108,327 | $148,978 | $1,476,777 | IRS |
| 990-PF | December 2024 | $75,250 | $103,547 | $1,517,428 | IRS |
| 990-PF | December 2023 | $17,747 | $128,247 | $1,545,725 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 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 23-2354559).
Questions about ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION
- What is the EIN of ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION?
- The employer identification number (EIN) of ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION is 23-2354559.
- Is ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1986.
- Are donations to ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private operating foundation, 50% limit).
- Which annual return does ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of ROBERT M AND MARY HAYTHORNTHWAITE 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 ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does ROBERT M AND MARY HAYTHORNTHWAITE FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $108,327, expenses of $148,978 and total assets of $1,476,777 at year end.
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