The Bill and Ann Ziff Foundation
The Bill and Ann Ziff Foundation is a private foundation, based in New York, NY. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $334K in total assets. In 2025, it made $5K in qualifying distributions.
The Bill and Ann Ziff Foundation at a glance
- Total assets
- $333,853
- -10.5% vs 2024
- Revenue (2025)
- $-28,523
- -179.2% vs 2024
- Qualifying distributions (2025)
- $4,500
- -90.2% vs 2024
- Expenses (2025)
- $11,127
- -78.7% vs 2024
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who The Bill and Ann Ziff Foundation funds
How this funder distributes its grants
Grant Size Distribution
20 grants across all recorded years
The most common grant size was under $50K: 8 grants of 20 (40%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Cities
How The Bill and Ann Ziff Foundation gives
- Giving fell 99% from 2021 to 2024. Method
- In 2025 it paid out 11% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $42K (2024) to $5.7M (2021). In 2024 it made 1 grant totaling $42K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Metropolitan Opera Association Newyork, NY | To Support the Charity's Mission. | $41,500 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $333,853 | $-28,523 | $11,127 | — | — | $4,500 | — | $39,473 |
| 2024 | $373,046 | $36,010 | $52,302 | $41,500 | 1 | $45,750 | — | $18,777 |
| 2023 | $389,338 | $36,313 | $853 | — | — | — | $35,460 | $17,813 |
| 2022 | $353,878 | $135,590 | $1,357,632 | $1,267,402 | 5 | $1,325,136 | $127,594 | $35,718 |
| 2021 | $2,560,726 | $1,286,471 | $5,789,484 | $5,674,910 | 14 | $5,736,580 | $1,247,534 | $181,283 |
| 2020 | $7,063,833 | $687,453 | $4,248,300 | $4,121,306 | 10 | — | $623,522 | $360,881 |
Under IRS private-foundation payout rules, The Bill and Ann Ziff Foundation reported a distributable amount of $39K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Bill and Ann Ziff Foundation is led by Ann Ziff, Director & President on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Ann Ziff
Director & President
On filings since 2020
5 hrs/week
No compensation reported
Tim Jessell
Trustee
On filings since 2020
2 hrs/week
No compensation reported
Hilary Hancock
Treasurer
On filings since 2022
1 hr/week
No compensation reported
Former officers (1)
- Former: Mary Pat Fortier (2021) — Treasurer
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Bill and Ann Ziff Foundation
How large is The Bill and Ann Ziff Foundation?
The Bill and Ann Ziff Foundation reported $334K in total assets on its 2025 IRS Form 990-PF. It paid out $5K in qualifying distributions that year, against a required minimum of $39K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
Where does The Bill and Ann Ziff Foundation operate?
The Bill and Ann Ziff Foundation has awarded grants in California, District of Columbia, Missouri, New York.
What is The Bill and Ann Ziff Foundation's EIN?
The Bill and Ann Ziff Foundation's EIN (Employer Identification Number) is 26-1437399. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS August 14, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work The Bill and Ann Ziff Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
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Browse active grant opportunities in The Bill and Ann Ziff Foundation's focus areas in our free grants database
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Figures come from The Bill and Ann Ziff Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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