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Nonprofit · EIN 85-0505387

OAK FOUNDATION INC

Tax-exempt · STONY BROOK, NY 11790

Financials

$11K$26K2025
Revenue Expenses · by fiscal year end
Financials of OAK FOUNDATION INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
March 31, 2026990-PF$11,088$25,520-$14,432$45,163$0$45,163
Financial details: 990-PF for the year ended March 31, 2026

Revenue

Contributions, gifts and grants
$9,568
Dividends
$1,520

Expenses

Grants and similar amounts paid
$15,000
Disbursements for charitable purposes
$25,520

Balance sheet and other

Total assets, start of year
$63,648
Total assets, end of year
$45,163
Total liabilities, end of year
$0
Net assets, end of year
$45,163
Fair market value of assets
$45,166
Qualifying distributions
$25,520
Net investment income
$1,865

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 March 31, 2026, highest compensation first.

NameTitleHours / weekCompensation
Elaine Chang
17 Botany lane, Stony Brook, NY 11790
Chairman20$0
Imin Kao
17 BOTANY LANE, STONY BROOK, NY 11790
Director0$0
Weetin Kao
2111 welch st A119, Houston, TX 77019
Director0$0
Jonathan Kao
10633 wilkin ave apt4, Los angeles, CA 90024
Director0$0

Address and contacts

Address (IRS master file)
17 BOTANY LN, STONY BROOK, NY 11790-2519
In care of
% ELAINE CHANG
Signed the 990-PF
ELAINE CHANG, Chairman
Phone
(631) 246-8114

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in March, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025March 31, 2026August 17, 2026990-PF on file
2024March 31, 2025August 15, 2025990-PF on file
2023March 31, 2024August 15, 2024990-PF on file

IRS record

EIN
85-0505387
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
2020
Accounting year ends
March
Files
Form 990-PF
Assets (IRS master file)
$45,163
Income (IRS master file)
$11,088

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFMarch 2026–––IRS
990-PFMarch 2025–––IRS
990-PFMarch 2024$14,449$8,791$48,371IRS
990-PFMarch 2023–––IRS
990-PFMarch 2022–––IRS
990-PFMarch 2021–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about OAK FOUNDATION INC

What is the EIN of OAK FOUNDATION INC?
The employer identification number (EIN) of OAK FOUNDATION INC is 85-0505387.
Is OAK FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2020.
Are donations to OAK FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does OAK FOUNDATION INC file?
Form 990-PF. Private foundations file every year.
When is the next return of OAK FOUNDATION INC due?
The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did OAK FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended March 2026.
Who are the officers and directors of OAK FOUNDATION INC?
The 990-PF for the year ended March 31, 2026 lists 4 people; 0 received compensation from the organization.
How much revenue does OAK FOUNDATION INC have?
On its 990-PF for the year ended March 31, 2026 it reported revenue of $11,088, expenses of $25,520 and total assets of $45,163 at year end.

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