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Nonprofit · EIN 52-1350750

CLAUSEN FAMILY FOUNDATION

Tax-exempt · SAN FRANCISCO, CA 94104

Financials

$262K$479K2023$940K$662K2024
Revenue Expenses · by fiscal year end
Financials of CLAUSEN FAMILY FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990-PF$939,661$661,968$277,693$5,304,086$409$5,303,677
December 31, 2023990-PF$262,258$478,980-$216,722$5,026,203$219$5,025,984
Financial details: 990-PF for the year ended December 31, 2024

Revenue

Dividends
$175,146
Interest
$10,937
Net gain from sales of assets
$753,458
Other income
$120

Expenses

Grants and similar amounts paid
$555,000
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$571,941
Excise tax on investment income
$11,962

Balance sheet and other

Total assets, start of year
$5,026,203
Total assets, end of year
$5,304,086
Total liabilities, end of year
$409
Net assets, end of year
$5,303,677
Fair market value of assets
$13,282,642
Qualifying distributions
$571,941
Net investment income
$939,661

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, 2024, highest compensation first.

NameTitleHours / weekCompensation
MARK W CLAUSEN
4334 LELAND STREET, CHEVY CHASE, MD 20815
PRESIDENT1$0
HELEN T CLAUSEN
800 HAUSMAN ROAD UNIT E-303, ALLENTOWN, PA 18104
SECRETARY0$0
MARY C DAVIS
4334 LELAND STREET, CHEVY CHASE, MD 20815
VICE PRESIDENT/TREASURER1$0
LILLI I ALBERGA
333 BUSH STREET SUITE 1700, SAN FRANCISCO, CA 94104
DIRECTOR0$0
990-PF for the year ended December 31, 2023: 4 people
NameTitleHours / weekCompensation
MARK W CLAUSEN
4334 LELAND STREET, CHEVY CHASE, MD 20815
PRESIDENT1$0
HELEN T CLAUSEN
800 HAUSMAN ROAD UNIT E-303, ALLENTOWN, PA 18104
SECRETARY0$0
MARY C DAVIS
4334 LELAND STREET, CHEVY CHASE, MD 20815
VICE PRESIDENT/TREASURER1$0
LILLI I ALBERGA
333 BUSH STREET SUITE 1700, SAN FRANCISCO, CA 94104
DIRECTOR0$0

Address and contacts

Address (IRS master file)
333 BUSH ST STE 1700, SAN FRANCISCO, CA 94104-2831
In care of
% WTAS LLC
Signed the 990-PF
MARK W CLAUSEN, PRESIDENT
Phone
(415) 764-2700
Return prepared by
ANDERSEN TAX LLC

California records

California keeps its own records of charities and corporations. Search them by EIN 52-1350750 or by the name CLAUSEN FAMILY 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, 2026Not on file
2024December 31, 2024May 15, 2025990-PF on file
2023December 31, 2023May 15, 2024990-PF on file

IRS record

EIN
52-1350750
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
1984
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$5,304,086
Income (IRS master file)
$2,213,538

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2024$939,661$661,968$5,304,086IRS
990-PFDecember 2023$262,258$478,980$5,026,203XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––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 52-1350750).

Questions about CLAUSEN FAMILY FOUNDATION

What is the EIN of CLAUSEN FAMILY FOUNDATION?
The employer identification number (EIN) of CLAUSEN FAMILY FOUNDATION is 52-1350750.
Is CLAUSEN FAMILY FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1984.
Are donations to CLAUSEN FAMILY FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does CLAUSEN FAMILY FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of CLAUSEN FAMILY FOUNDATION due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did CLAUSEN FAMILY FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended December 2024.
Who are the officers and directors of CLAUSEN FAMILY FOUNDATION?
The 990-PF for the year ended December 31, 2024 lists 4 people; 0 received compensation from the organization.
How much revenue does CLAUSEN FAMILY FOUNDATION have?
On its 990-PF for the year ended December 31, 2024 it reported revenue of $939,661, expenses of $661,968 and total assets of $5,304,086 at year end.

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