Nonprofit · EIN 46-4978561
MICHELSON FOUNDATION
Tax-exempt · SCOTTSDALE, AZ 85258
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $537,994 | $978,522 | -$440,528 | $14,937,008 | $0 | $14,937,008 |
| December 31, 2024 | 990-PF | $451,027 | $388,133 | $62,894 | $15,377,536 | $0 | $15,377,536 |
| December 31, 2023 | 990-PF | $353,876 | $744,677 | -$390,801 | $15,314,642 | $0 | $15,314,642 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Dividends
- $529,632
- Net gain from sales of assets
- $8,362
Expenses
- Grants and similar amounts paid
- $961,473
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $971,823
- Excise tax on investment income
- $7,385
Balance sheet and other
- Total assets, start of year
- $15,377,536
- Total assets, end of year
- $14,937,008
- Total liabilities, end of year
- $0
- Net assets, end of year
- $14,937,008
- Fair market value of assets
- $68,143,694
- Qualifying distributions
- $971,823
- Net investment income
- $537,994
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 |
|---|---|---|---|
| MICHAEL W MICHELSON 10105 E Via Linda, STE 103 PMB 2799, Scottsdale, AZ 85258 | DIRECTOR AND CHAIRMEN | 1 | $0 |
| SUSAN P DOELL 155 Bovet Road, Suite 770, San Mateo, CA 94402 | SECRETARY AND TREASURER | 3 | $0 |
| KATE M GOLDKAMP 155 Bovet Road, Suite 770, San Mateo, CA 99402 | DIRECTOR | 1 | $0 |
| LAURA E MICHELSON SIEVERS 155 Bovet Road, Suite 770, San Mateo, CA 99402 | DIRECTOR | 1 | $0 |
990-PF for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MICHAEL W MICHELSON 10105 E Via Linda, STE 103 PMB 2799, Scottsdale, AZ 85258 | DIRECTOR AND CHAIRMEN | 1 | $0 |
| SUSAN P DOELL 155 Bovet Road, Suite 770, San Mateo, CA 94402 | SECRETARY AND TREASURER | 3 | $0 |
| KATE M GOLDKAMP 155 Bovet Road, Suite 770, San Mateo, CA 99402 | DIRECTOR | 1 | $0 |
| LAURA E MICHELSON SIEVERS 155 Bovet Road, Suite 770, San Mateo, CA 99402 | DIRECTOR | 1 | $0 |
990-PF for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MICHAEL W MICHELSON 10105 E Via Linda, STE 103 PMB 2799, Scottsdale, AZ 85258 | DIRECTOR AND CHAIRMEN | 1 | $0 |
| SUSAN P DOELL 155 Bovet Road, Suite 770, San Mateo, CA 94402 | SECRETARY AND TREASURER | 3 | $0 |
| KATE M GOLDKAMP 155 Bovet Road, Suite 770, San Mateo, CA 99402 | DIRECTOR | 1 | $0 |
| LAURA E MICHELSON 155 Bovet Road, Suite 770, San Mateo, CA 99402 | DIRECTOR | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 10105 E VIA LINDA STE 103PMB 2799, SCOTTSDALE, AZ 85258-5311
- In care of
- % KKR ACCOUNTING SERVICES LLC
- Signed the 990-PF
- Susan P Doell, Secretary/Treasurer
- Phone
- (650) 653-2406
- Return prepared by
- ERNST & YOUNG US 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
- 46-4978561
- 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
- 2014
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Unknown (Z99)
- Assets (IRS master file)
- $14,937,008
- Income (IRS master file)
- $1,107,631
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $537,994 | $978,522 | $14,937,008 | IRS |
| 990-PF | December 2024 | $451,027 | $388,133 | $15,377,536 | IRS |
| 990-PF | December 2023 | $353,876 | $744,677 | $15,314,642 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | 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 46-4978561).
Questions about MICHELSON FOUNDATION
- What is the EIN of MICHELSON FOUNDATION?
- The employer identification number (EIN) of MICHELSON FOUNDATION is 46-4978561.
- Is MICHELSON FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
- Are donations to MICHELSON FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MICHELSON FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MICHELSON 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 MICHELSON 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 MICHELSON FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does MICHELSON FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $537,994, expenses of $978,522 and total assets of $14,937,008 at year end.
Other nonprofits in SCOTTSDALE
- DEER TRIBE METIS-MEDICINE SOCIETY EIN 95-4307294 · last filed 990 for 2024
- THE INTEGRITY PROJECT CO EIN 88-1294785 · last filed 990-EZ for 2024
- WORLD WIDE HARVESTER CENTER INC EIN 86-0393852 · last filed 990-EZ for 2023
- WHITE IBEX FOUNDATION EIN 84-3260592 · last filed 990-PF for 2025
- JACEE FOR KIDS EIN 30-0499078 · last filed 990-N for 2022
- LYNN CORNELL BRAIN INJURY FOUNDATION INC EIN 85-0873662 · last filed 990-N for 2024
- GIVING IS FUN TOO INC EIN 77-0313080 · last filed 990-N for 2024
- HONORHEALTH EIN 86-0181654 · last filed 990 for 2024