Nonprofit · EIN 41-1957558
DENNIS K AND VIVIAN D SIEMER FOUNDATION INC
Tax-exempt · MANKATO, MN 56001
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $27,137 | $16,103 | $11,034 | $166,941 | $0 | $166,941 |
| December 31, 2024 | 990-PF | $28,986 | $15,625 | $13,361 | $155,907 | $0 | $155,907 |
| December 31, 2023 | 990-PF | $15,455 | $16,323 | -$868 | $142,546 | $0 | $142,546 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $14,500
- Dividends
- $6,411
- Net gain from sales of assets
- $6,226
Expenses
- Grants and similar amounts paid
- $14,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $14,987
- Excise tax on investment income
- $162
Balance sheet and other
- Total assets, start of year
- $155,907
- Total assets, end of year
- $166,941
- Total liabilities, end of year
- $0
- Net assets, end of year
- $166,941
- Fair market value of assets
- $183,777
- Qualifying distributions
- $14,987
- Net investment income
- $12,637
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 |
|---|---|---|---|
| DENNIS K SIEMER 10 RUTH COURT, MANKATO, MN 56001 | PRESIDENT | 0.5 | $0 |
| VIVIAN D SIEMER 10 RUTH COURT, MANKATO, MN 56001 | VICE PRESIDENT | 0.5 | $0 |
| SUSAN CHAMBERS 10 RUTH COURT, MANKATO, MN 56001 | SECRETARY/TREASURER | 0.5 | $0 |
| DIANE DOBITZ 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| HENRY PANOWITSCH 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| PETER KUHLMAN 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| RONALD BENNETT 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| KRISTY SCHUCK 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
990-PF for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DENNIS K SIEMER 10 RUTH COURT, MANKATO, MN 56001 | PRESIDENT | 0.5 | $0 |
| VIVIAN D SIEMER 10 RUTH COURT, MANKATO, MN 56001 | SECRETARY/TREASURER | 0.5 | $0 |
| PETER KUHLMAN 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| RONALD BENNETT 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| HENRY PANOWITSCH 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
| SUSAN CHAMBERS 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
990-PF for the year ended December 31, 2023: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DENNIS K SIEMER 10 RUTH COURT, MANKATO, MN 56001 | PRESIDENT | 0.5 | $0 |
| VIVIAN D SIEMER 10 RUTH COURT, MANKATO, MN 56001 | SECRETARY/TREASURER | 0.5 | $0 |
| PETER KUHLMAN 10 RUTH COURT, MANKATO, MN 56001 | DIRECTOR | 0.5 | $0 |
Address and contacts
- Address (IRS master file)
- 10 RUTH CT, MANKATO, MN 56001-4123
- In care of
- % DENNIS K SIEMER
- Signed the 990-PF
- DENNIS K SIEMER, PRESIDENT
- Phone
- (507) 387-4906
- Return prepared by
- CLIFTONLARSONALLEN 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
- 41-1957558
- 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)
- Education (B82)
- Assets (IRS master file)
- $166,941
- Income (IRS master file)
- $27,137
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $27,137 | $16,103 | $166,941 | XML |
| 990-PF | December 2024 | $28,986 | $15,625 | $155,907 | XML |
| 990-PF | December 2023 | $15,455 | $16,323 | $142,546 | 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 41-1957558).
Questions about DENNIS K AND VIVIAN D SIEMER FOUNDATION INC
- What is the EIN of DENNIS K AND VIVIAN D SIEMER FOUNDATION INC?
- The employer identification number (EIN) of DENNIS K AND VIVIAN D SIEMER FOUNDATION INC is 41-1957558.
- Is DENNIS K AND VIVIAN D SIEMER FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2000.
- Are donations to DENNIS K AND VIVIAN D SIEMER FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does DENNIS K AND VIVIAN D SIEMER FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of DENNIS K AND VIVIAN D SIEMER 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 DENNIS K AND VIVIAN D SIEMER 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 DENNIS K AND VIVIAN D SIEMER FOUNDATION INC?
- The 990-PF for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does DENNIS K AND VIVIAN D SIEMER FOUNDATION INC have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $27,137, expenses of $16,103 and total assets of $166,941 at year end.
Other nonprofits in MANKATO
- BETHANY LUTHERAN COLLEGE & SEMINARY INC EIN 41-0747165 · last filed 990 for 2025
- MINNESOTA STATE UNIVERSITY MANKATO FOUNDATION INCORPORATED EIN 41-6033423 · last filed 990 for 2025
- TRAVERSE DES SIOUX LIBRARY SYSTEM EIN 41-6173688 · last filed 990 for 2025
- KATO PUBLIC CHARTER SCHOOL EIN 41-1969573 · last filed 990 for 2025
- SCHOLA FOUNDATION EIN 51-0144999 · last filed 990 for 2025
- GOOD COUNSEL LEARNING CENTER INC EIN 61-1915154 · last filed 990 for 2025
- LOYOLA BOOSTER CLUB EIN 41-2018040 · last filed 990 for 2025
- GREENSEAM FUTURES EIN 88-2909608 · last filed 990-EZ for 2024