Nonprofit · EIN 47-2489518
SIEPMANN FOUNDATION
Tax-exempt · LAS VEGAS, NV 89144
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $12,672 | $52,168 | -$39,496 | $350,605 | $5,450 | $345,155 |
| December 31, 2024 | 990-PF | $146,591 | $46,038 | $100,553 | $340,604 | $0 | $340,604 |
| December 31, 2023 | 990-PF | $56,078 | $166,505 | -$110,427 | $362,320 | $7,515 | $354,805 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $8,257
- Net gain from sales of assets
- $4,297
- Other income
- $118
Expenses
- Grants and similar amounts paid
- $45,661
- Disbursements for charitable purposes
- $45,661
- Excise tax on investment income
- $274
Balance sheet and other
- Total assets, start of year
- $340,604
- Total assets, end of year
- $350,605
- Total liabilities, end of year
- $5,450
- Net assets, end of year
- $345,155
- Fair market value of assets
- $350,605
- Qualifying distributions
- $45,661
- Net investment income
- $26,230
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 |
|---|---|---|---|
| JUERGEN BUCHSTEINER 128 LOS CABOS DRIVE 401, LAS VEGAS, NV 89144 | DIRECTOR | 2 | $0 |
| MEIFANG BUCHSTEINER 128 LOS CABOS DRIVE 401, LAS VEGAS, NV 89144 | DIRECTOR | 2 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JUERGEN BUCHSTEINER 128 LOS CABOS DRIVE 401, LAS VEGAS, NV 89144 | DIRECTOR | 2 | $0 |
| MEIFANG BUCHSTEINER 128 LOS CABOS DRIVE 401, LAS VEGAS, NV 89144 | DIRECTOR | 2 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| JUERGEN BUCHSTEINER 18311 LEXINGTON DR, MONTE SERENO, CA 95030 | DIRECTOR | 2 | $0 |
| MEIFANG BUCHSTEINER 18311 LEXINGTON DR, MONTE SERENO, CA 95030 | DIRECTOR | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 128 LOS CABOS DRIVE, LAS VEGAS, NV 89144-6614
- Signed the 990-PF
- JUERGEN BUCHSTEINER, DIRECTOR
- Phone
- (408) 827-4175
- Return prepared by
- L LEUNG INC
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
- 47-2489518
- 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
- 2015
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20)
- Assets (IRS master file)
- $350,605
- Income (IRS master file)
- $33,629
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $12,672 | $52,168 | $350,605 | IRS |
| 990-PF | December 2024 | $146,591 | $46,038 | $340,604 | XML |
| 990-PF | December 2023 | $56,078 | $166,505 | $362,320 | 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 47-2489518).
Questions about SIEPMANN FOUNDATION
- What is the EIN of SIEPMANN FOUNDATION?
- The employer identification number (EIN) of SIEPMANN FOUNDATION is 47-2489518.
- Is SIEPMANN FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
- Are donations to SIEPMANN FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does SIEPMANN FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of SIEPMANN 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 SIEPMANN 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 SIEPMANN FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does SIEPMANN FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $12,672, expenses of $52,168 and total assets of $350,605 at year end.
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All nonprofits in LAS VEGAS · Nevada · Philanthropy, voluntarism and grantmaking foundations