Nonprofit · EIN 23-7090080
ELFERS FOUNDATION INC
Tax-exempt · BOSTON, MA 02110
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| November 30, 2025 | 990-PF | $1,143,917 | $779,297 | $364,620 | $16,008,641 | $0 | $16,008,641 |
| November 30, 2024 | 990-PF | $684,552 | $814,937 | -$130,385 | $15,400,000 | $0 | $15,400,000 |
| November 30, 2023 | 990-PF | $398,407 | $792,392 | -$393,985 | $13,943,691 | $0 | $13,943,691 |
| November 30, 2022 | 990-PF (amended) | $2,971,802 | $915,918 | $2,055,884 | $12,897,371 | $0 | $12,897,371 |
Financial details: 990-PF for the year ended November 30, 2025
Revenue
- Contributions, gifts and grants
- $178,396
- Dividends
- $272,467
- Net gain from sales of assets
- $628,014
- Other income
- $65,040
Expenses
- Grants and similar amounts paid
- $640,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $658,423
- Excise tax on investment income
- $11,673
Balance sheet and other
- Total assets, start of year
- $15,400,000
- Total assets, end of year
- $16,008,641
- Total liabilities, end of year
- $0
- Net assets, end of year
- $16,008,641
- Fair market value of assets
- $16,008,641
- Qualifying distributions
- $658,423
- Net investment income
- $959,091
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 November 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Amelia R Elfers c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| William Alexander Haughton c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Eric Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Deborah Elfers Haffenreffer 61 Mount Vernon Street, Boston, MA 02108 | President/Director | 5 | $0 |
| Jane Elfers Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Treasurer/Vice President/Director | 1 | $0 |
| Henry Dormitzer c/o Choate LLP Two International, Place, Boston, MA 02110 | Secretary/Clerk/Director | 1 | $0 |
990-PF for the year ended November 30, 2024: 7 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Amelia R Elfers c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director (start 2/2024) | 1 | $0 |
| Katherine A Elfers c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director (end 2/2024) | 1 | $0 |
| William Alexander Haughton c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Eric Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Deborah B Elfers 61 Mount Vernon Street, Boston, MA 02108 | President/Director | 5 | $0 |
| Jane Elfers Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Treasurer/Vice President/Director | 1 | $0 |
| Henry Dormitzer c/o Choate LLP Two International, Place, Boston, MA 02110 | Secretary/Clerk/Director | 1 | $0 |
990-PF for the year ended November 30, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Katherine A Elfers c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| William Alexander Haughton c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Eric Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Deborah B Elfers 61 Mount Vernon Street, Boston, MA 02108 | President/Director | 5 | $0 |
| Jane Elfers Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Treasurer/Vice President/Director | 1 | $0 |
| Henry Dormitzer c/o Choate LLP Two International, Place, Boston, MA 02110 | Secretary/Clerk/Director | 1 | $0 |
990-PF for the year ended November 30, 2022: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Katherine A Elfers c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| William Alexander Haughton c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Eric Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Director | 1 | $0 |
| Deborah B Elfers c/o Brown Advisory 100 High Street, Boston, MA 02110 | President/Director | 5 | $0 |
| Jane Elfers Muther c/o Brown Advisory 100 High Street, Boston, MA 02110 | Treasurer/Vice President/Director | 1 | $0 |
| Henry Dormitzer c/o Brown Advisory 100 High Street, Boston, MA 02110 | Secretary/Clerk/Director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- CO BROWN ADVISORY 100 HIGH STREET, BOSTON, MA 02110-0000
- In care of
- % CHOATE HALL & STEWART
- Signed the 990-PF
- Deborah Elfers Haffenreffer, President
- Phone
- (617) 717-6370
- Return prepared by
- Baker Newman & Noyes
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in November, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2024 | November 30, 2025 | April 15, 2026 | 990-PF on file |
| 2023 | November 30, 2024 | April 15, 2025 | 990-PF on file |
| 2022 | November 30, 2023 | April 15, 2024 | 990-PF on file |
IRS record
- EIN
- 23-7090080
- 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
- 1970
- Accounting year ends
- November
- Files
- Form 990-PF
- Assets (IRS master file)
- $16,008,641
- Income (IRS master file)
- $2,753,414
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | November 2025 | $1,143,917 | $779,297 | $16,008,641 | XML |
| 990-T | November 2025 | – | – | – | IRS |
| 990-PF | November 2024 | $684,552 | $814,937 | $15,400,000 | XML |
| 990-T | November 2024 | – | – | – | IRS |
| 990-PF | November 2023 | $398,407 | $792,392 | $13,943,691 | XML |
| 990-T | November 2023 | – | – | – | IRS |
| 990-PF | November 2022 | $2,971,802 | $915,918 | $12,897,371 | XML |
| 990-T | November 2022 | – | – | – | IRS |
| 990-PF | November 2021 | – | – | – | IRS |
| 990-T | November 2021 | – | – | – | IRS |
| 990-PF | November 2020 | – | – | – | 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 23-7090080).
Questions about ELFERS FOUNDATION INC
- What is the EIN of ELFERS FOUNDATION INC?
- The employer identification number (EIN) of ELFERS FOUNDATION INC is 23-7090080.
- Is ELFERS FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1970.
- Are donations to ELFERS FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does ELFERS FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of ELFERS FOUNDATION INC due?
- The return for tax year 2025 (the year ending November 30, 2026) is due April 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did ELFERS FOUNDATION INC last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended November 2025.
- Who are the officers and directors of ELFERS FOUNDATION INC?
- The 990-PF for the year ended November 30, 2025 lists 6 people; 0 received compensation from the organization.
- How much revenue does ELFERS FOUNDATION INC have?
- On its 990-PF for the year ended November 30, 2025 it reported revenue of $1,143,917, expenses of $779,297 and total assets of $16,008,641 at year end.
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