Nonprofit · EIN 23-7107105
ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION
Tax-exempt · BORREGO SPGS, CA 92004
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $1,400,343 | $439,152 | $961,191 | $3,158,739 | $6,694 | $3,152,045 |
| December 31, 2024 | 990 | $1,320,395 | $405,306 | $915,089 | $2,196,488 | $5,634 | $2,190,854 |
| December 31, 2023 | 990 | $435,286 | $378,062 | $57,224 | $1,293,313 | $17,548 | $1,275,765 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,149,118
- Membership dues
- $116,079
- Program service revenue
- $51,560
- Investment income
- $61,141
- Net gain from sales of assets
- -$1,062
- Net income from sales of inventory
- $138,524
- Other revenue
- $138,524
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $62,937
- Other salaries and wages
- $158,762
- Salaries, compensation and benefits (total)
- $239,784
- Professional fundraising fees
- $0
- Accounting fees
- $2,500
- Occupancy
- $45,922
- Depreciation
- $21,252
- Program services (functional)
- $407,170
- Management and general (functional)
- $30,210
- Fundraising (functional)
- $1,772
Balance sheet and other
- Total assets, start of year
- $2,196,488
- Total assets, end of year
- $3,158,739
- Total liabilities, end of year
- $6,694
- Net assets, end of year
- $3,152,045
- Land, buildings and equipment
- $429,668
- Publicly traded securities
- $459,723
- Net assets without donor restrictions
- $3,152,045
- Gross receipts
- $1,559,188
- Employees
- 14
- Volunteers
- 150
- Year formed
- 1971
- State of legal domicile
- CA
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 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Betsy Knaak | Executive Director | 40 | $62,937 |
| Sanjiv Nanda PhD | Chairperson Trustee or director, Officer | 4 | $0 |
| Don Barrie | V. Chairperson Trustee or director, Officer | 1 | $0 |
| Don Rideout | Director Trustee or director | 1 | $0 |
| Phil Newbury | Director Trustee or director | 1 | $0 |
| Joe Migliore | Director Trustee or director | 1 | $0 |
| Mike McElhatton | Education Direc Trustee or director | 1 | $0 |
| Marcy Yates | Secretary Trustee or director, Officer | 1 | $0 |
990 for the year ended December 31, 2024: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Betsy Knaak | Executive Director | 40 | $60,516 |
| Sanjiv Nanda PhD | Director Trustee or director | 1 | $0 |
| Don Barrie | Director Trustee or director | 1 | $0 |
| Reena Deutsch | Director Trustee or director | 1 | $0 |
| Joe Migliore | Director Trustee or director | 1 | $0 |
| Marcy Yates | Secretary Trustee or director, Officer | 1 | $0 |
| Jim Wilson | Chairperson Trustee or director, Officer | 2 | $0 |
| Sandy Huff | Director Trustee or director | 1 | $0 |
990 for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Betsy Knaak | Executive Director | 40 | $58,752 |
| Sanjiv Nanda PhD | Director Trustee or director | 1 | $0 |
| Don Barrie | Director Trustee or director | 1 | $0 |
| Reena Deutsch | Director Trustee or director | 1 | $0 |
| Joe Migliore | Director Trustee or director | 1 | $0 |
| Marcy Yates | Secretary Trustee or director, Officer | 1 | $0 |
| Jim Wilson | Chairperson Trustee or director, Officer | 2 | $0 |
| Sandy Huff | Director Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 310, BORREGO SPGS, CA 92004-0310
- Signed the 990
- Betsy Knaak, Executive Director
- Phone
- (760) 767-3052
- Website
- www.abdnha.org
- Return prepared by
- Sandra M Welch CPA
California records
California keeps its own records of charities and corporations. Search them by EIN 23-7107105 or by the name ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION.
- 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
We are dedicated to educational, scientific, historic and interpretive endeavors that enhance the public understanding, awareness, knowledge, and appreciation of the natural and cultural resources of the Anza-Borrego Desert region.
Program accomplishments
- The association operates the Borrego Desert Nature Center to provide desert information, sight-seeing information, wildflower information and other visitor services for approximately 25,000 people annually.Expenses $349,970
- The Association provides informational handouts, original articles, and "The Sandpaper" newsletter. Over 15,000 copies published and distributed annually.Expenses $37,654
- The Association provides more than 150 educational and interpretive programs about the desert for the public, provides environmental education for K-12 including curriculum development and instruction, and holds special events including the Annual Desert Lecture Series, the Borrego Desert Garden Tour, the Borrego Bird Festival, California History Weekend, and Borrego Dark Sky programs.Expenses $15,640
- The Association operates an active volunteer program for more than 150 people.Expenses $3,906
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 23-7107105
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1971
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C60Z)
- Assets (IRS master file)
- $3,158,739
- Income (IRS master file)
- $1,559,188
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $1,400,343 | $439,152 | $3,158,739 | IRS |
| 990 | December 2024 | $1,320,395 | $405,306 | $2,196,488 | XML |
| 990 | December 2023 | $435,286 | $378,062 | $1,293,313 | XML |
| 990 | December 2022 | $377,980 | $353,418 | $1,224,705 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | 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 23-7107105).
Questions about ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION
- What is the EIN of ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION?
- The employer identification number (EIN) of ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION is 23-7107105.
- Is ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1971.
- Are donations to ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION 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 ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who are the officers and directors of ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION?
- The 990 for the year ended December 31, 2025 lists 8 people; 1 received compensation from the organization, the highest $62,937 (Betsy Knaak, Executive Director).
- How much revenue does ANZA BORREGO DESERT NATURAL HISTORY ASSOCIATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $1,400,343, expenses of $439,152 and total assets of $3,158,739 at year end.
Other nonprofits in BORREGO SPGS
- SELVA LIBRE EIN 87-1679220 · last filed 990-N for 2025
- BORREGO COMMUNITY DEVELOPMENT CORPORATION EIN 92-3643505 · last filed 990 for 2025
- BORREGO ART INSTITUTE EIN 20-2491691 · last filed 990 for 2025
- BORREGO VALLEY ENDOWMENT FUND INC EIN 33-0611010 · last filed 990 for 2025
- BORREGO SPRINGS CHAMBER OF COMMERCE EIN 95-1856898 · last filed 990 for 2024
- AMERICAN LEGION NATIONAL HEADQUARTERS EIN 33-0767897 · last filed 990 for 2025
- BORREGO SPRINGS COMMUNITY RESOURCE CENTER EIN 92-2472896 · last filed 990 for 2025
- BORREGO MINISTERS ASSOCIATION EIN 92-3678192 · last filed 990 for 2024