Nonprofit · EIN 91-2146860
SCIENCE AND CULTURAL EXCHANGE
Tax-exempt · ENCINITAS, CA 92024
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $10,146 | $11,096 | -$950 | $2,159 | – | $2,159 |
| December 31, 2024 | 990-EZ | $14,096 | $13,520 | $576 | $3,109 | – | $3,109 |
| December 31, 2023 | 990-EZ | $15,261 | $14,265 | $996 | $2,533 | – | $2,533 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $10,146
Expenses
- Compensation of officers, directors and key employees
- $0
- Professional fees and payments to contractors
- $255
- Other expenses
- $10,841
- Program services (functional)
- $10,980
Balance sheet and other
- Total assets, start of year
- $3,109
- Total assets, end of year
- $2,159
- Total liabilities, end of year
- –
- Net assets, end of year
- $2,159
- Cash, savings and investments
- $2,159
- Gross receipts
- $10,146
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-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LIBERTY BOYD | Treasurer | 0 | $0 |
| MICHAEL WILKEN-ROBERTSON | Secretary | 0 | $0 |
| KATHERINE COMER SANTOS | CEO | 0 | $0 |
| DORETTA WINKELMAN | BOARD MEMBER | 0 | $0 |
990-EZ for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MICHAEL WILKEN-ROBERTSON | Secretary | 2 | $0 |
| DORETTA WINKELMAN | Treasurer | 2 | $0 |
| LAURIE SILVAN | BOARD MEMBER | 2 | $0 |
| KATHERINE COMER SANTOS | BOARD MEMBER | 2 | $0 |
| SAMANTHA WHITCRAFT | BOARD MEMBER | 2 | $0 |
| DAN WATMAN | President | 2 | $0 |
990-EZ for the year ended December 31, 2023: 9 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MICHAEL D STEVENS | BOARD MEMBER | 2 | $0 |
| LOWELL LINDSAY | BOARD MEMBER | 2 | $0 |
| LAURIE SILVAN | PRES/CO CHAIR | 5 | $0 |
| KAARE S KJOS | BOARD MEMBER | 3 | $0 |
| TIMOTHY E HORNING | BOARD MEMBER | 1 | $0 |
| JANE CLOUGH | BOARD MEMBER | 3 | $0 |
| DORETTA WINKELMAN | Treasurer | 3 | $0 |
| MICHAEL WILKEN | Secretary | 3 | $0 |
| DANIEL WATMAN | VICE PRES/CO-CH | 3 | $0 |
Address and contacts
- Address (IRS master file)
- 144 W D ST STE 201, ENCINITAS, CA 92024-3572
- In care of
- % SCIENCE AND CULTURAL EXCHANGE
- Signed the 990-EZ
- DORETTA WINKELMAN, BOARD MEMBER
- Phone
- (619) 318-0698
- Return prepared by
- Medina Horning & Associates LLP
California records
California keeps its own records of charities and corporations. Search them by EIN 91-2146860 or by the name SCIENCE AND CULTURAL EXCHANGE.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
The primary objectives and purposes of this corporation shall be to support the corporation's overall purpose of promoting closer collaboration among social and community service providers in the San Diego-Tijuana region engaged in issues of equal importance to both sides of the border.
Program accomplishments
- PALA TRADIDIONAL CERAMIC WORKSHOP & PRESCOTT INDIAN NATIVE ARTS WORKSHOPExpenses $10,980
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 91-2146860
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2001
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Public and societal benefit (W05)
- Assets (IRS master file)
- $2,159
- Income (IRS master file)
- $10,146
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $10,146 | $11,096 | $2,159 | XML |
| 990-EZ | December 2024 | $14,096 | $13,520 | $3,109 | XML |
| 990-EZ | December 2023 | $15,261 | $14,265 | $2,533 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990-EZ | 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 91-2146860).
Questions about SCIENCE AND CULTURAL EXCHANGE
- What is the EIN of SCIENCE AND CULTURAL EXCHANGE?
- The employer identification number (EIN) of SCIENCE AND CULTURAL EXCHANGE is 91-2146860.
- Is SCIENCE AND CULTURAL EXCHANGE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2001.
- Are donations to SCIENCE AND CULTURAL EXCHANGE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SCIENCE AND CULTURAL EXCHANGE file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of SCIENCE AND CULTURAL EXCHANGE 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 SCIENCE AND CULTURAL EXCHANGE last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who are the officers and directors of SCIENCE AND CULTURAL EXCHANGE?
- The 990-EZ for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does SCIENCE AND CULTURAL EXCHANGE have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $10,146, expenses of $11,096 and total assets of $2,159 at year end.
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All nonprofits in ENCINITAS · California · Public and societal benefit