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Nonprofit · EIN 94-2480429

ACORN FOUNDATION

Tax-exempt · KENTFIELD, CA 94904

Financials

$61K$73K2023$212K$151K2024$161K$140K2025
Revenue Expenses · by fiscal year end
Financials of ACORN FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$160,978$139,551$21,427$1,246,782$0$1,246,782
December 31, 2024990-PF$211,788$151,029$60,759$1,225,355$0$1,225,355
December 31, 2023990-PF$61,373$73,269-$11,896$1,164,596$0$1,164,596
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Dividends
$40,439
Interest
$5,702
Net gain from sales of assets
$114,771
Other income
$66

Expenses

Grants and similar amounts paid
$95,000
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$108,353
Excise tax on investment income
$1,872

Balance sheet and other

Total assets, start of year
$1,225,355
Total assets, end of year
$1,246,782
Total liabilities, end of year
$0
Net assets, end of year
$1,246,782
Fair market value of assets
$2,611,160
Qualifying distributions
$108,353
Net investment income
$160,978

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.

NameTitleHours / weekCompensation
STEPHEN C KIMBALL
30 ACORN WAY, KENTFIELD, CA 94904
DIRECTOR2$0
ANNE C KIMBALL
1104 FEDERAL AVENUE EAST, SEATTLE, WA 98102
SECRETARY1$0
JEFFREY L KIMBALL
2 HORATIO STREET 3M, NEW YORK, NY 10014
TREASURER1$0
JULIE C KIMBALL
30 ACORN WAY, KENTFIELD, CA 94904
DIRECTOR1$0
PAMELA HOGAN
2 HORATIO STREET 3M, NEW YORK, NY 10014
PRESIDENT1$0
990-PF for the year ended December 31, 2024: 5 people
NameTitleHours / weekCompensation
STEPHEN C KIMBALL
30 ACORN WAY, KENTFIELD, CA 94904
CEO2$0
ANNE C KIMBALL
1104 FEDERAL AVENUE EAST, SEATTLE, WA 98102
SECRETARY1$0
JEFFREY L KIMBALL
2 HORATIO STREET 3M, NEW YORK, NY 10014
Treasurer1$0
JULIE C KIMBALL
30 ACORN WAY, KENTFIELD, CA 94904
DIRECTOR1$0
PAMELA HOGAN
2 HORATIO STREET 3M, NEW YORK, NY 10014
President1$0
990-PF for the year ended December 31, 2023: 5 people
NameTitleHours / weekCompensation
STEPHEN C KIMBALL
30 ACORN WAY, KENTFIELD, CA 94904
PRESIDENT2$0
ANNE C KIMBALL
1104 FEDERAL AVENUE EAST, SEATTLE, WA 98102
SECRETARY1$0
JEFFREY L KIMBALL
2 HORATIO STREET 3M, NEW YORK, NY 10014
Treasurer1$0
JULIE C KIMBALL
30 ACORN WAY, KENTFIELD, CA 94904
DIRECTOR1$0
PAMELA HOGAN
2 HORATIO STREET 3M, NEW YORK, NY 10014
DIRECTOR1$0

Address and contacts

Address (IRS master file)
30 ACORN WAY, KENTFIELD, CA 94904-2601
Signed the 990-PF
STEPHEN KIMBALL, DIRECTOR
Phone
(415) 453-2828
Return prepared by
BLUE SPHERE TAX INC

California records

California keeps its own records of charities and corporations. Search them by EIN 94-2480429 or by the name ACORN FOUNDATION.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

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 yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-PF on file
2024December 31, 2024May 15, 2025990-PF on file
2023December 31, 2023May 15, 2024990-PF on file

IRS record

EIN
94-2480429
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
1978
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$1,246,782
Income (IRS master file)
$398,443

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$160,978$139,551$1,246,782XML
990-PFDecember 2024$211,788$151,029$1,225,355XML
990-PFDecember 2023$61,373$73,269$1,164,596XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––IRS
990-PFDecember 2019–––IRS
990-PFDecember 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 94-2480429).

Questions about ACORN FOUNDATION

What is the EIN of ACORN FOUNDATION?
The employer identification number (EIN) of ACORN FOUNDATION is 94-2480429.
Is ACORN FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1978.
Are donations to ACORN FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does ACORN FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of ACORN 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 ACORN 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 ACORN FOUNDATION?
The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
How much revenue does ACORN FOUNDATION have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $160,978, expenses of $139,551 and total assets of $1,246,782 at year end.

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