Nonprofit · EIN 93-1295219
ARTHUR & VIVIENNE WIESE FOUNDATION
Tax-exempt · TUALATIN, OR 97062
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $0 | $25 | -$25 | $1,111 | $0 | $1,111 |
| December 31, 2024 | 990-PF | $0 | $0 | $0 | $1,136 | $0 | $1,136 |
| December 31, 2023 | 990-PF | $0 | $0 | $0 | $1,136 | $0 | $1,136 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
Expenses
- Grants and similar amounts paid
- $0
- Disbursements for charitable purposes
- $25
Balance sheet and other
- Total assets, start of year
- $1,136
- Total assets, end of year
- $1,111
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,111
- Fair market value of assets
- $1,111
- Qualifying distributions
- $25
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 |
|---|---|---|---|
| MARK S WIESE 22170 SW 107TH AVE, TUALATIN, OR 97062 | DIRECTOR | 0 | $0 |
| KATHRYN RAFFERTY 810 NE BALDWIN, HILLSBORO, OR 97124 | DIRECTOR | 0 | $0 |
| ARTHUR M WIESE 8125 E GAINSBOROUGH CT, POTOMAC, MD 20854 | DIRECTOR | 0 | $0 |
| CHARLES F WIESE 1515 SW 66TH AVE, PORTLAND, OR 97225 | DIRECTOR | 0 | $0 |
| PETER J WIESE 93130 GIANT OAK DR, JUNCTION CITY, OR 97448 | DIRECTOR | 0 | $0 |
990-PF for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK S WIESE 22170 SW 107TH AVE, TUALATIN, OR 97062 | DIRECTOR | 0 | $0 |
| KATHRYN RAFFERTY 810 NE BALDWIN, HILLSBORO, OR 97124 | DIRECTOR | 0 | $0 |
| ARTHUR M WIESE 8125 E GAINSBOROUGH CT, POTOMAC, MD 20854 | DIRECTOR | 0 | $0 |
| CHARLES F WIESE 1515 SW 66TH AVE, PORTLAND, OR 97225 | DIRECTOR | 0 | $0 |
| PETER J WIESE 93130 GIANT OAK DR, JUNCTION CITY, OR 97448 | DIRECTOR | 0 | $0 |
990-PF for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK S WIESE 22170 SW 107TH AVE, TUALATIN, OR 97062 | DIRECTOR | 0 | $0 |
| KATHYRN RAFFERTY 810 NE BALDWIN, HILLSBORO, OR 97124 | DIRECTOR | 0 | $0 |
| ARTHUR M WIESE 8125 E GAINSBOROUGH CT, POTOMAC, MD 20854 | DIRECTOR | 0 | $0 |
| CHARLES F WIESE 1515 SW 66TH AVE, PORTLAND, OR 97225 | DIRECTOR | 0 | $0 |
| PETER J WIESE 93130 GIANT OAK DR, JUNCTION CITY, OR 97448 | DIRECTOR | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 22170 SW 107TH AVE, TUALATIN, OR 97062-8108
- In care of
- % JAMES MCCLURG
- Signed the 990-PF
- MARK S WIESE, DIRECTOR
- Return prepared by
- MARK WIESE CPA LLC
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
- 93-1295219
- 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 (T22)
- Assets (IRS master file)
- $1,111
- Income (IRS master file)
- $1
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $0 | $25 | $1,111 | IRS |
| 990-PF | December 2024 | $0 | $0 | $1,136 | IRS |
| 990-PF | December 2023 | $0 | $0 | $1,136 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
| 990-PF | December 2017 | – | – | – | 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 93-1295219).
Questions about ARTHUR & VIVIENNE WIESE FOUNDATION
- What is the EIN of ARTHUR & VIVIENNE WIESE FOUNDATION?
- The employer identification number (EIN) of ARTHUR & VIVIENNE WIESE FOUNDATION is 93-1295219.
- Is ARTHUR & VIVIENNE WIESE FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2000.
- Are donations to ARTHUR & VIVIENNE WIESE FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does ARTHUR & VIVIENNE WIESE FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of ARTHUR & VIVIENNE WIESE 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 ARTHUR & VIVIENNE WIESE 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 ARTHUR & VIVIENNE WIESE FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does ARTHUR & VIVIENNE WIESE FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $0, expenses of $25 and total assets of $1,111 at year end.
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