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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 85-3134431

ATHEMATH

Tax-exempt · PASADENA, CA 91126

Address and contacts

Address (IRS master file)
1200 E CALIFORNIA BLVD MSC 348, PASADENA, CA 91126-0001
In care of
% CHRISTINE YANG
Mailing address (990-N for 2025)
1200 E California Blvd MSC 348, Pasadena CA 91126
Principal officer (990-N for 2025)
Vivian Loh, 1200 E California Blvd, MSC 348, Pasadena CA 91126

California records

California keeps its own records of charities and corporations. Search them by EIN 85-3134431 or by the name ATHEMATH.

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

Tax yearYear endedDueIRS public records
2025September 30, 2026February 15, 2027990-N on file
2024September 30, 2025February 16, 2026990-N on file
2023September 30, 2024February 17, 2025990-N on file

File the 2026 990-N for ATHEMATH

Due February 15, 2028 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
85-3134431
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
2020
Accounting year ends
September
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B90)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Vivian Loh
September 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Vivian Loh
September 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Vivian Loh
September 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Christine Yang
September 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Christine Yang
September 30, 2021≤ $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 85-3134431).

Questions about ATHEMATH

What is the EIN of ATHEMATH?
The employer identification number (EIN) of ATHEMATH is 85-3134431.
Is ATHEMATH tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2020.
Are donations to ATHEMATH tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does ATHEMATH file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of ATHEMATH due?
The return for tax year 2026 (the year ending September 30, 2027) is due February 15, 2028. Form 8868 extends it by six months; the 990-N cannot be extended.
When did ATHEMATH last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended September 30, 2026.
Who is the principal officer of ATHEMATH?
The 990-N for 2025 names Vivian Loh.

Other nonprofits in PASADENA

All nonprofits in PASADENA · California · Education