Skip to main content

Nonprofit · EIN 13-6977690

IRIS FOUNDATION

Also known as ZABEL WILLIAM D TTEE

Tax-exempt · NEW YORK, NY 10024

Financials

$14.7M$13.8M2023$8.7M$12.3M2024
Revenue Expenses · by fiscal year end
Financials of IRIS FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
August 31, 2025990-PF$8,705,816$12,300,276-$3,594,460$102,408,227$23,096,783$79,311,444
August 31, 2024990-PF$14,701,926$13,821,136$880,790$89,905,904$7,000,000$82,905,904
Financial details: 990-PF for the year ended August 31, 2025

Revenue

Contributions, gifts and grants
$1,267,500
Dividends
$6,112,670
Interest
$553,283
Other income
$772,363

Expenses

Grants and similar amounts paid
$9,041,545
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$9,113,056
Excise tax on investment income
$92,193

Balance sheet and other

Total assets, start of year
$89,905,904
Total assets, end of year
$102,408,227
Total liabilities, end of year
$23,096,783
Net assets, end of year
$79,311,444
Fair market value of assets
$170,959,550
Qualifying distributions
$9,113,056
Net investment income
$7,438,316

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 August 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
SUSAN WEBER
C/O BARD GRADUATE CENTER 18 W 86 ST, NEW YORK, NY 10024
TRUSTEE0$0
GEORGE SOROS CO-CHAIR
888 7TH AVENUE, NEW YORK, NY 10106
TRUSTEE0$0
WILLIAM D ZABEL
919 THIRD AVENUE, NEW YORK, NY 10022
TRUSTEE0$0
990-PF for the year ended August 31, 2024: 3 people
NameTitleHours / weekCompensation
SUSAN WEBER
C/O BARD GRADUATE CENTER 18 W 86 ST, NEW YORK, NY 10024
TRUSTEE0$0
GEORGE SOROS CO-CHAIR
888 7TH AVENUE, NEW YORK, NY 10106
TRUSTEE0$0
WILLIAM D ZABEL
919 THIRD AVENUE, NEW YORK, NY 10022
TRUSTEE0$0

Address and contacts

Address (IRS master file)
18 W 86TH ST, NEW YORK, NY 10024-3602
Signed the 990-PF
SUSAN WEBER, TRUSTEE
Phone
(212) 501-3034
Return prepared by
LMC ADVISORS 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 August, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025August 31, 2026January 15, 2027Not due yet
2024August 31, 2025January 15, 2026990-PF on file
2023August 31, 2024January 15, 2025990-PF on file

IRS record

EIN
13-6977690
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
1991
Accounting year ends
August
Files
Form 990-PF
Assets (IRS master file)
$102,408,227
Income (IRS master file)
$8,705,816

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFAugust 2025–––IRS
990-PFAugust 2024–––IRS
990-PFAugust 2023$15,384,980$14,894,759$89,025,142IRS
990-PFAugust 2022–––IRS
990-PFAugust 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 IRIS FOUNDATION

What is the EIN of IRIS FOUNDATION?
The employer identification number (EIN) of IRIS FOUNDATION is 13-6977690.
Is IRIS FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1991.
Are donations to IRIS FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does IRIS FOUNDATION file?
Form 990-PF. Private foundations file every year.
When is the next return of IRIS FOUNDATION due?
The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did IRIS FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended August 2025.
Who are the officers and directors of IRIS FOUNDATION?
The 990-PF for the year ended August 31, 2025 lists 3 people; 0 received compensation from the organization.
How much revenue does IRIS FOUNDATION have?
On its 990-PF for the year ended August 31, 2025 it reported revenue of $8,705,816, expenses of $12,300,276 and total assets of $102,408,227 at year end.

Other nonprofits in NEW YORK

All nonprofits in NEW YORK · New York