Nonprofit · EIN 45-4015961
BILL AND DIANNE MENSCH FOUNDATION
Tax-exempt (reinstated) · MESA, AZ 85213
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $1,002 | $6,252 | -$5,250 | $16,746 | $81 | $16,665 |
| December 31, 2024 | 990-PF | $101,006 | $122,694 | -$21,688 | $22,004 | $89 | $21,915 |
| December 31, 2023 | 990-PF | $60,008 | $68,491 | -$8,483 | $43,687 | $84 | $43,603 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,000
- Interest
- $2
Expenses
- Grants and similar amounts paid
- $4,710
- Disbursements for charitable purposes
- $4,710
Balance sheet and other
- Total assets, start of year
- $22,004
- Total assets, end of year
- $16,746
- Total liabilities, end of year
- $81
- Net assets, end of year
- $16,665
- Fair market value of assets
- $16,746
- Qualifying distributions
- $4,710
- Net investment income
- $2
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 D MENSCH JR 2166 E BROWN RD, MESA, AZ 85213 | PRES & CEO | 0 | $0 |
| DIANE MENSCH 2166 E BROWN RD, MESA, AZ 85213 | TREAS & SEC | 0 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WILLIAM D MENSCH JR 2943 S LOOKOUT RIDGE, GOLD CANYON, AZ 85118 | PRES & CEO | 0 | $0 |
| DIANE MENSCH 2943 S LOOKOUT RIDGE, GOLD CANYON, AZ 85118 | TREAS & SEC | 0 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WILLIAM D MENSCH JR 2943 S LOOKOUT RIDGE, GOLD CANYON, AZ 85118 | President & CEO | 0 | $0 |
| DIANNE MENSCH 2943 S LOOKOUT RIDGE, GOLD CANYON, AZ 85118 | TREAS & SEC | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 2166 E BROWN RD, MESA, AZ 85213-5223
- In care of
- % WILLIAM & DIANNE MENSCH
- Signed the 990-PF
- WILLIAM D MENSCH JR, PRESIDENT & CEO
- Phone
- (480) 363-0072
- Website
- www.themenschfoundation.org
- Return prepared by
- Pay-Tech 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
- 45-4015961
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private operating foundation
- Donations deductible (Pub 78)
- Private operating foundation, 50% limit
- Exempt since
- 2014
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T99)
- Assets (IRS master file)
- $16,746
- Income (IRS master file)
- $1,002
Revocation and reinstatement
- Exemption revoked
- May 15, 2014
- Posted by the IRS
- August 11, 2014
- Reinstated
- Effective May 15, 2014
From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $1,002 | $6,252 | $16,746 | IRS |
| 990-PF | December 2024 | $101,006 | $122,694 | $22,004 | XML |
| 990-PF | December 2023 | $60,008 | $68,491 | $43,687 | 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 45-4015961).
Questions about BILL AND DIANNE MENSCH FOUNDATION
- What is the EIN of BILL AND DIANNE MENSCH FOUNDATION?
- The employer identification number (EIN) of BILL AND DIANNE MENSCH FOUNDATION is 45-4015961.
- Is BILL AND DIANNE MENSCH FOUNDATION tax-exempt?
- Yes. The IRS revoked its exemption on May 15, 2014 and reinstated it effective May 15, 2014.
- Are donations to BILL AND DIANNE MENSCH FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private operating foundation, 50% limit).
- Which annual return does BILL AND DIANNE MENSCH FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of BILL AND DIANNE MENSCH 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 BILL AND DIANNE MENSCH 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 BILL AND DIANNE MENSCH FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does BILL AND DIANNE MENSCH FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $1,002, expenses of $6,252 and total assets of $16,746 at year end.
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