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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 84-2933621

ALAMEDA COUNTY SHERIFFS MOUNTED POSSE

Tax-exempt · DUBLIN, CA 94568

Address and contacts

Address (IRS master file)
4985 BRODER BLVD, DUBLIN, CA 94568-3314
In care of
% LINDA EVANS
Mailing address (990-N for 2025)
4985 Broder Blvd, Dublin CA 94568
Principal officer (990-N for 2025)
Shari Hiibel, 4985 Broder Blvd, Dublin CA 94568

California records

California keeps its own records of charities and corporations. Search them by EIN 84-2933621 or by the name ALAMEDA COUNTY SHERIFFS MOUNTED POSSE.

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

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-N on file
2024December 31, 2024May 15, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2026 990-N for ALAMEDA COUNTY SHERIFFS MOUNTED POSSE

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
84-2933621
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
2019
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Unknown (Z99)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Shari Hiibel
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Shari Hiibel
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Shari Hiibel
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Barbara Guidotti
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: LINDA EVANS
December 31, 2019≤ $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 84-2933621).

Questions about ALAMEDA COUNTY SHERIFFS MOUNTED POSSE

What is the EIN of ALAMEDA COUNTY SHERIFFS MOUNTED POSSE?
The employer identification number (EIN) of ALAMEDA COUNTY SHERIFFS MOUNTED POSSE is 84-2933621.
Is ALAMEDA COUNTY SHERIFFS MOUNTED POSSE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2019.
Are donations to ALAMEDA COUNTY SHERIFFS MOUNTED POSSE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ALAMEDA COUNTY SHERIFFS MOUNTED POSSE file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of ALAMEDA COUNTY SHERIFFS MOUNTED POSSE 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 ALAMEDA COUNTY SHERIFFS MOUNTED POSSE last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of ALAMEDA COUNTY SHERIFFS MOUNTED POSSE?
The 990-N for 2025 names Shari Hiibel.

Other nonprofits in DUBLIN

All nonprofits in DUBLIN · California · Unknown