Nonprofit · EIN 20-5794944
MARK AND ANNE HANSEN FOUNDATION
Tax-exempt · WASHINGTON, DC 20036
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990-PF | $2,887,501 | $612,910 | $2,274,591 | $20,200,370 | $0 | $20,200,370 |
| September 30, 2024 | 990-PF | $464,074 | $591,938 | -$127,864 | $16,444,389 | $0 | $16,444,389 |
| September 30, 2023 | 990-PF | $105,821 | $564,453 | -$458,632 | $13,190,101 | $0 | $13,190,101 |
Financial details: 990-PF for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $2,071,599
- Dividends
- $143,565
- Net gain from sales of assets
- $672,329
- Other income
- $8
Expenses
- Grants and similar amounts paid
- $528,744
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $539,869
- Excise tax on investment income
- $26,832
Balance sheet and other
- Total assets, start of year
- $16,444,389
- Total assets, end of year
- $20,200,370
- Total liabilities, end of year
- $0
- Net assets, end of year
- $20,200,370
- Fair market value of assets
- $20,200,370
- Qualifying distributions
- $539,869
- Net investment income
- $1,998,461
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 September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | GRANTOR/TRUSTEE | 0 | $0 |
| ANNE HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | GRANTOR/TRUSTEE | 0 | $0 |
| ELISABETH CARSON 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
| CAROLINE HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
| CHARLES HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
990-PF for the year ended September 30, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | GRANTOR/TRUSTEE | 0 | $0 |
| ANNE HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | GRANTOR/TRUSTEE | 0 | $0 |
| ELISABETH CARSON 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
| CAROLINE HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
| CHARLES HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
990-PF for the year ended September 30, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARK HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | GRANTOR/TRUSTEE | 0 | $0 |
| ANNE HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | GRANTOR/TRUSTEE | 0 | $0 |
| ELISABETH CARSON 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
| CAROLINE HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
| CHARLES HANSEN 4444 HADFIELD LANE NW, WASHINGTON, DC 20007 | TRUSTEE | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 1615 M ST NW STE 400, WASHINGTON, DC 20036-3215
- In care of
- % KELLOGG HUBER HANSEN TODD EVANS &
- Signed the 990-PF
- MARK HANSEN, GRANTOR/TRUSTEE
- Phone
- (877) 829-5500
- Return prepared by
- BAKER TILLY ADVISORY GROUP LP
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990-PF on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990-PF on file |
IRS record
- EIN
- 20-5794944
- 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
- 2007
- Accounting year ends
- September
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20)
- Assets (IRS master file)
- $20,200,370
- Income (IRS master file)
- $6,972,027
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | September 2025 | $2,887,501 | $612,910 | $20,200,370 | XML |
| 990-PF | September 2024 | $464,074 | $591,938 | $16,444,389 | XML |
| 990-PF | September 2023 | $105,821 | $564,453 | $13,190,101 | XML |
| 990-PF | September 2022 | – | – | – | IRS |
| 990-PF | September 2021 | – | – | – | IRS |
| 990-PF | September 2020 | – | – | – | IRS |
| 990-PF | September 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 20-5794944).
Questions about MARK AND ANNE HANSEN FOUNDATION
- What is the EIN of MARK AND ANNE HANSEN FOUNDATION?
- The employer identification number (EIN) of MARK AND ANNE HANSEN FOUNDATION is 20-5794944.
- Is MARK AND ANNE HANSEN FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
- Are donations to MARK AND ANNE HANSEN FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MARK AND ANNE HANSEN FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MARK AND ANNE HANSEN FOUNDATION due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MARK AND ANNE HANSEN FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended September 2025.
- Who are the officers and directors of MARK AND ANNE HANSEN FOUNDATION?
- The 990-PF for the year ended September 30, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does MARK AND ANNE HANSEN FOUNDATION have?
- On its 990-PF for the year ended September 30, 2025 it reported revenue of $2,887,501, expenses of $612,910 and total assets of $20,200,370 at year end.
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