Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 91-1987558

SONNEBORN FOUNDATION INC

Tax-exempt · BETHESDA, MD 20814

Financials

$36K$7K2022$37K$88K2023$37K$1K2024
Revenue Expenses · by fiscal year end
Financials of SONNEBORN FOUNDATION INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990-PF$37,276$1,000$36,276$761,285$0$761,285
June 30, 2024990-PF$37,334$88,250-$50,916$725,509$0$725,509
June 30, 2023990-PF$36,000$7,000$29,000$776,425$0$776,425
Financial details: 990-PF for the year ended June 30, 2025

Revenue

Other income
$37,276

Expenses

Grants and similar amounts paid
$1,000
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$1,000
Excise tax on investment income
$518

Balance sheet and other

Total assets, start of year
$725,509
Total assets, end of year
$761,285
Total liabilities, end of year
$0
Net assets, end of year
$761,285
Fair market value of assets
$761,285
Qualifying distributions
$1,000
Net investment income
$37,276

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
MARK NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
PRESIDENT / TREASURER0.5$0
PATTI NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
SECRETARY0$0
ROBIN NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
OFFICER0$0
990-PF for the year ended June 30, 2024: 3 people
NameTitleHours / weekCompensation
MARK NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
PRESIDENT / TREASURER0.5$0
PATTI NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
SECRETARY0$0
ROBIN NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
OFFICER0$0
990-PF for the year ended June 30, 2023: 3 people
NameTitleHours / weekCompensation
MARK NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
PRESIDENT / TREASURER0.5$0
PATTI NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
SECRETARY0$0
ROBIN NEUMANN
510 GARRISON FOREST ROAD, OWINGS MILLS, MD 21117
OFFICER0$0

Address and contacts

Address (IRS master file)
4900 MOORLAND LN APT 501, BETHESDA, MD 20814-6298
In care of
% MARK D NEUMANN
Signed the 990-PF
MARK NEUMANN, PRESIDENT
Phone
(410) 363-0133
Return prepared by
THE LICHTER GROUP 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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990-PF on file
2023June 30, 2024November 15, 2024990-PF on file

IRS record

EIN
91-1987558
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
1999
Accounting year ends
June
Files
Form 990-PF
Assets (IRS master file)
$761,285
Income (IRS master file)
$37,276

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFJune 2025$37,276$1,000$761,285IRS
990-PFJune 2024$37,334$88,250$725,509IRS
990-PFJune 2023$36,000$7,000$776,425XML
990-PFJune 2022–––IRS
990-PFJune 2021–––IRS
990-PFJune 2020–––IRS
990-PFJune 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 91-1987558).

Questions about SONNEBORN FOUNDATION INC

What is the EIN of SONNEBORN FOUNDATION INC?
The employer identification number (EIN) of SONNEBORN FOUNDATION INC is 91-1987558.
Is SONNEBORN FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1999.
Are donations to SONNEBORN FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does SONNEBORN FOUNDATION INC file?
Form 990-PF. Private foundations file every year.
When is the next return of SONNEBORN FOUNDATION INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did SONNEBORN FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended June 2025.
Who are the officers and directors of SONNEBORN FOUNDATION INC?
The 990-PF for the year ended June 30, 2025 lists 3 people; 0 received compensation from the organization.
How much revenue does SONNEBORN FOUNDATION INC have?
On its 990-PF for the year ended June 30, 2025 it reported revenue of $37,276, expenses of $1,000 and total assets of $761,285 at year end.

Other nonprofits in BETHESDA

All nonprofits in BETHESDA · Maryland