Nonprofit · EIN 65-1023488
SIEBOLD FOUNDATION INC
Tax-exempt · PARKLAND, FL 33076
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $0 | $0 | $0 | $14,298 | $0 | $14,298 |
| December 31, 2024 | 990-PF | $1 | $10,794 | -$10,793 | $14,298 | $0 | $14,298 |
| December 31, 2023 | 990-PF | $35 | $19,961 | -$19,926 | $25,091 | $0 | $25,091 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
Expenses
- Grants and similar amounts paid
- $0
Balance sheet and other
- Total assets, start of year
- $14,298
- Total assets, end of year
- $14,298
- Total liabilities, end of year
- $0
- Net assets, end of year
- $14,298
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 |
|---|---|---|---|
| WILLIAM SIEBOLD 7663 OLD THYME COURT, PARKLAND, FL 33076 | PRESIDENT | 0 | $0 |
| KATHLEEN SIEBOLD 7663 OLD THYME COURT, PARKLAND, FL 33076 | SECRETARY | 0 | $0 |
| JAMES R SIEBOLD 2675 RIVIERIA CT, WESTON, FL 33326 | CHAIRMAN | 0 | $0 |
| MICHAEL BURES 3641 NW 71ST ST, COCONUT CREEK, FL 33073 | VICE-PRESIDE | 0 | $0 |
990-PF for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WILLIAM SIEBOLD 7663 OLD THYME COURT, PARKLAND, FL 33076 | PRESIDENT | 0 | $0 |
| KATHLEEN SIEBOLD 7663 OLD THYME COURT, PARKLAND, FL 33076 | SECRETARY | 0 | $0 |
| JAMES R SIEBOLD 2675 RIVIERIA CT, WESTON, FL 33326 | CHAIRMAN | 0 | $0 |
| MICHAEL BURES 3641 NW 71ST ST, COCONUT CREEK, FL 33073 | VICE-PRESIDE | 0 | $0 |
990-PF for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WILLIAM SIEBOLD 7663 OLD THYME COURT, PARKLAND, FL 33076 | PRESIDENT | 0 | $0 |
| KATHLEEN SIEBOLD 7663 OLD THYME COURT, PARKLAND, FL 33076 | SECRETARY | 0 | $0 |
| JAMES R SIEBOLD 2675 RIVIERIA CT, WESTON, FL 33326 | CHAIRMAN | 0 | $0 |
| MICHAEL BURES 3641 NW 71ST ST, COCONUT CREEK, FL 33073 | VICE-PRESIDE | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 12115 BASTILLE CIR E, PARKLAND, FL 33076-4646
- In care of
- % KATHY SIEBOLD
- Signed the 990-PF
- WILLIAM SIEBOLD, PRESIDENT
- Phone
- (954) 340-3005
- Return prepared by
- RJ AUGUSTINE & ASSOCIATES LTD
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
- 65-1023488
- 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
- 2000
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T21)
- Assets (IRS master file)
- $14,298
- Income (IRS master file)
- $1
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $0 | $0 | $14,298 | XML |
| 990-PF | December 2024 | $1 | $10,794 | $14,298 | XML |
| 990-PF | December 2023 | $35 | $19,961 | $25,091 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | 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 65-1023488).
Questions about SIEBOLD FOUNDATION INC
- What is the EIN of SIEBOLD FOUNDATION INC?
- The employer identification number (EIN) of SIEBOLD FOUNDATION INC is 65-1023488.
- Is SIEBOLD FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2000.
- Are donations to SIEBOLD FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does SIEBOLD FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of SIEBOLD FOUNDATION INC 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 SIEBOLD FOUNDATION INC 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 SIEBOLD FOUNDATION INC?
- The 990-PF for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does SIEBOLD FOUNDATION INC have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $0, expenses of $0 and total assets of $14,298 at year end.
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All nonprofits in PARKLAND · Florida · Philanthropy, voluntarism and grantmaking foundations