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Nonprofit · EIN 22-6058585

LEONARD & BEATRICE DIENER FOUNDATION

Tax-exempt · HACKENSACK, NJ 07601

Financials

$38K$99K2023$51K$109K2024$133K$113K2025
Revenue Expenses · by fiscal year end
Financials of LEONARD & BEATRICE DIENER FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$133,125$112,811$20,314$932,982$1,939$931,043
December 31, 2024990-PF$51,415$108,983-$57,568$912,270$1,393$910,877
December 31, 2023990-PF$37,782$99,476-$61,694$885,768$1,033$884,735
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Dividends
$63,363
Net gain from sales of assets
$69,762

Expenses

Grants and similar amounts paid
$110,000
Salaries, compensation and benefits (total)
$450
Disbursements for charitable purposes
$110,483
Excise tax on investment income
$1,848

Balance sheet and other

Total assets, start of year
$912,270
Total assets, end of year
$932,982
Total liabilities, end of year
$1,939
Net assets, end of year
$931,043
Fair market value of assets
$1,547,349
Qualifying distributions
$110,483
Net investment income
$133,125

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
Adele Diener
293 E Palisade Ave, Engelwood, NJ 07631
Secretary1$450
Lawrence B Diener
25 Main Street Ste 200, Hackensack, NJ 07601
President2$0
Marjorie Blenden
183 Exeter Way Hillside NJ 07205, Hillside, NJ 07205
Vice President1$0
990-PF for the year ended December 31, 2024: 3 people
NameTitleHours / weekCompensation
Adele Diener
293 E Palisade Ave, Engelwood, NJ 07631
Secretary1$550
Lawrence B Diener
25 Main Street Ste 200, Hackensack, NJ 07601
President2$0
Marjorie Blenden
183 Exeter Way Hillside NJ 07205, Hillside, NJ 07205
Vice President1$0
990-PF for the year ended December 31, 2023: 3 people
NameTitleHours / weekCompensation
Adele Diener
293 E Palisade Ave, Engelwood, NJ 07631
Secretary1$600
Lawrence B Diener
25 Main Street Ste 200, Hackensack, NJ 07601
President2$0
Marjorie Blenden
183 Exeter Way Hillside NJ 07205, Hillside, NJ 07205
Vice President1$0

Address and contacts

Address (IRS master file)
25 MAIN ST STE 200, HACKENSACK, NJ 07601-7085
Signed the 990-PF
Lawrence Diener, President
Phone
(201) 342-6137
Return prepared by
YATES CAMPBELL & HOEG LLP

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
22-6058585
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
1956
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$932,982
Income (IRS master file)
$328,417

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$133,125$112,811$932,982IRS
990-PFDecember 2024$51,415$108,983$912,270IRS
990-PFDecember 2023$37,782$99,476$885,768XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 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 22-6058585).

Questions about LEONARD & BEATRICE DIENER FOUNDATION

What is the EIN of LEONARD & BEATRICE DIENER FOUNDATION?
The employer identification number (EIN) of LEONARD & BEATRICE DIENER FOUNDATION is 22-6058585.
Is LEONARD & BEATRICE DIENER FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1956.
Are donations to LEONARD & BEATRICE DIENER FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does LEONARD & BEATRICE DIENER FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of LEONARD & BEATRICE DIENER 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 LEONARD & BEATRICE DIENER 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 LEONARD & BEATRICE DIENER FOUNDATION?
The 990-PF for the year ended December 31, 2025 lists 3 people; 1 received compensation from the organization, the highest $450 (Adele Diener, Secretary).
How much revenue does LEONARD & BEATRICE DIENER FOUNDATION have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $133,125, expenses of $112,811 and total assets of $932,982 at year end.

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