Nonprofit · EIN 73-6300138
CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION
Tax-exempt · TULSA, OK 74101
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $179,025 | $154,519 | $24,506 | $1,939,641 | $0 | $1,939,641 |
| December 31, 2024 | 990-PF | $189,329 | $143,248 | $46,081 | $1,924,738 | $0 | $1,924,738 |
| December 31, 2023 | 990-PF | $217,336 | $129,166 | $88,170 | $1,869,934 | $0 | $1,869,934 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $59,816
- Net gain from sales of assets
- $119,209
Expenses
- Grants and similar amounts paid
- $122,500
- Compensation of officers, directors and key employees
- $27,824
- Disbursements for charitable purposes
- $131,206
- Excise tax on investment income
- $2,191
Balance sheet and other
- Total assets, start of year
- $1,924,738
- Total assets, end of year
- $1,939,641
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,939,641
- Fair market value of assets
- $2,589,481
- Qualifying distributions
- $131,206
- Net investment income
- $178,977
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.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| BOKF NA PO BOX 1620, TULSA, OK 741011620 | TRUSTEE | 15 | $27,824 |
990-PF for the year ended December 31, 2024: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| BOKF NA PO BOX 1620, TULSA, OK 741011620 | TRUSTEE | 15 | $26,684 |
990-PF for the year ended December 31, 2023: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| BOKF NA PO BOX 1620, TULSA, OK 741011620 | TRUSTEE | 15 | $25,081 |
Address and contacts
- Address (IRS master file)
- PO BOX 1620, TULSA, OK 74101-1620
- In care of
- % BANK OF OKLAHOMA NA
- Signed the 990-PF
- BOKF NA TRUSTEE, VICE PRESIDENT
- Phone
- (918) 619-1526
- Return prepared by
- ERNST & YOUNG 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 year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 73-6300138
- 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
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $1,939,641
- Income (IRS master file)
- $451,248
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $179,025 | $154,519 | $1,939,641 | IRS |
| 990-PF | December 2024 | $189,329 | $143,248 | $1,924,738 | IRS |
| 990-PF | December 2023 | $217,336 | $129,166 | $1,869,934 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 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 73-6300138).
Questions about CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION
- What is the EIN of CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION?
- The employer identification number (EIN) of CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION is 73-6300138.
- Is CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1999.
- Are donations to CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of CASE AND ELFREDA ZANDBERGEN CHARITABLE 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 CASE AND ELFREDA ZANDBERGEN CHARITABLE 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 CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 1 person; 1 received compensation from the organization, the highest $27,824 (BOKF NA, TRUSTEE).
- How much revenue does CASE AND ELFREDA ZANDBERGEN CHARITABLE FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $179,025, expenses of $154,519 and total assets of $1,939,641 at year end.
Other nonprofits in TULSA
- GEORGE KAISER FAMILY FOUNDATION EIN 73-1574370 · last filed 990 for 2024
- TULSA COMMUNITY FOUNDATION EIN 73-1554474 · last filed 990 for 2024
- CHARLES AND LYNN SCHUSTERMAN FAMILY FOUNDATION EIN 73-1312965 · last filed 990-PF for 2024
- CROSSSEED INC EIN 99-3164735 · last filed 990 for 2024
- ASBJORNSON FOUNDATION EIN 73-1582633 · last filed 990-PF for 2024
- J A & LETA M CHAPMAN CHARITABLE TR EIN 73-6112228 · last filed 990 for 2024
- JOSEPH W CRAFT III FOUNDATION EIN 73-1514539 · last filed 990-PF for 2024
- WILLIAM K WARREN FOUNDATION EIN 73-0609599 · last filed 990-PF for 2024
All nonprofits in TULSA · Oklahoma · Philanthropy, voluntarism and grantmaking foundations