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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 33-3735447

HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB

Tax-exempt · SAN MATEO, CA 94403

Address and contacts

Address (IRS master file)
429 SYLVAN AVE, SAN MATEO, CA 94403-3333
In care of
% ALICIA HENEGHAN
Mailing address (990-N for 2025)
429 Sylvan Avenue, San Mateo CA 94403
Principal officer (990-N for 2025)
Alicia Heneghan, 429 SYLVAN AVE, SAN MATEO CA 94403

California records

California keeps its own records of charities and corporations. Search them by EIN 33-3735447 or by the name HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB.

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

Tax yearYear endedDueIRS public records
2025July 31, 2026December 15, 2026Not due yet
2024July 31, 2025December 15, 2025990-N on file
2023July 31, 2024December 16, 2024Check at the IRS

File the 2025 990-N for HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB

Due December 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
33-3735447
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
2025
Accounting year ends
July
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Alicia Heneghan
July 31, 2025≤ $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 33-3735447).

Questions about HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB

What is the EIN of HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB?
The employer identification number (EIN) of HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB is 33-3735447.
Is HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
Are donations to HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB due?
The return for tax year 2025 (the year ending July 31, 2026) is due December 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended July 31, 2025.
Who is the principal officer of HILLSDALE HIGH SCHOOL ATHLETIC BOOSTER CLUB?
The 990-N for 2025 names Alicia Heneghan.

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