Nonprofit · EIN 36-3377946
SUDIX FOUNDATION
Tax-exempt · MADISON, WI 53703
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $4,045,819 | $62,256 | $3,983,563 | $4,029,202 | $0 | $4,029,202 |
| December 31, 2024 | 990-PF | $3,177 | $62,498 | -$59,321 | $45,639 | $0 | $45,639 |
| December 31, 2023 | 990-PF | $7,924 | $63,724 | -$55,800 | $104,960 | $0 | $104,960 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $4,000,000
- Dividends
- $45,819
Expenses
- Grants and similar amounts paid
- $60,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $60,015
- Excise tax on investment income
- $606
Balance sheet and other
- Total assets, start of year
- $45,639
- Total assets, end of year
- $4,029,202
- Total liabilities, end of year
- $0
- Net assets, end of year
- $4,029,202
- Fair market value of assets
- $4,029,202
- Qualifying distributions
- $60,015
- Net investment income
- $45,819
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 |
|---|---|---|---|
| KATHERINE THOMSON 111 N FAIRCHILD ST STE 300, MADISON, WI 53703 | PRESIDENT | 1 | $0 |
| RANA SALTI 111 N FAIRCHILD ST STE 300, MADISON, WI 53703 | SEC/TREAS | 1 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHERINE THOMSON 111 N FAIRCHILD ST STE 300, MADISON, WI 53703 | PRESIDENT | 1 | $0 |
| RANA SALTI 111 N FAIRCHILD ST STE 300, MADISON, WI 53703 | SEC/TREAS | 1 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| KATHERINE THOMSON 111 N FAIRCHILD ST STE 300, MADISON, WI 53703 | PRESIDENT | 1 | $0 |
| RANA SALTI 111 N FAIRCHILD ST STE 300, MADISON, WI 53703 | SEC/TREAS | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 111 N FAIRCHILD ST STE 300, MADISON, WI 53703-2830
- In care of
- % KINSHIP LLC
- Signed the 990-PF
- RANA SALTI, SECRETARY/TREASURER
- Phone
- (608) 710-4200
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
- 36-3377946
- 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
- 1986
- Accounting year ends
- December
- Files
- Form 990-PF
- Assets (IRS master file)
- $4,029,202
- Income (IRS master file)
- $4,045,819
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $4,045,819 | $62,256 | $4,029,202 | XML |
| 990-PF | December 2024 | $3,177 | $62,498 | $45,639 | IRS |
| 990-PF | December 2023 | $7,924 | $63,724 | $104,960 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | 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 36-3377946).
Questions about SUDIX FOUNDATION
- What is the EIN of SUDIX FOUNDATION?
- The employer identification number (EIN) of SUDIX FOUNDATION is 36-3377946.
- Is SUDIX FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1986.
- Are donations to SUDIX FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does SUDIX FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of SUDIX 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 SUDIX 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 SUDIX FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does SUDIX FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $4,045,819, expenses of $62,256 and total assets of $4,029,202 at year end.
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