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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 23-7325783

NAPA SOLANO AUDUBON SOCIETY

Tax-exempt · NAPA, CA 94581

Address and contacts

Address (IRS master file)
PO BOX 10006, NAPA, CA 94581-2006
In care of
% WENDY SCHACKWITZ
Mailing address (990-N for 2025)
PO Box 10006, Napa CA 94581
Principal officer (990-N for 2025)
Mark Stephenson, PO Box 10006, Napa CA 94581

California records

California keeps its own records of charities and corporations. Search them by EIN 23-7325783 or by the name NAPA SOLANO AUDUBON SOCIETY.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026990-N on file
2024June 30, 2025November 17, 2025990-N on file
2023June 30, 2024November 15, 2024990-N on file

File the 2026 990-N for NAPA SOLANO AUDUBON SOCIETY

Due November 15, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
23-7325783
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
1973
Accounting year ends
June
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Mark Stephenson
June 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Mark Stephenson
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Mark Stephenson
June 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Mark Stephenson
June 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Mark Stephenson
June 30, 2022≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: David Kassel
June 30, 2020≤ $50,000 receipts––e-Postcard

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 23-7325783).

Questions about NAPA SOLANO AUDUBON SOCIETY

What is the EIN of NAPA SOLANO AUDUBON SOCIETY?
The employer identification number (EIN) of NAPA SOLANO AUDUBON SOCIETY is 23-7325783.
Is NAPA SOLANO AUDUBON SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1973.
Are donations to NAPA SOLANO AUDUBON SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does NAPA SOLANO AUDUBON SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of NAPA SOLANO AUDUBON SOCIETY due?
The return for tax year 2026 (the year ending June 30, 2027) is due November 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did NAPA SOLANO AUDUBON SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended June 30, 2026.
Who is the principal officer of NAPA SOLANO AUDUBON SOCIETY?
The 990-N for 2025 names Mark Stephenson.

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