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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 51-0192141

NATIONAL TREASURY EMPLOYEES UNION

Also known as 108 CHAPTER

Tax-exempt · RANCHO SANTA MARGARITA, CA 92688

Address and contacts

Address (IRS master file)
29851 AVENTURE SUITE K 81060, RANCHO SANTA MARGARITA, CA 92688-2014
In care of
% PORTIA NEWMAN
Mailing address (990-N for 2024)
29851 Aventure Suite K 81060, Rancho Santa Margarita CA 92688
Principal officer (990-N for 2024)
Mayra Dimas, 29851 Aventure Suite K 81060, Rancho Santa Margarita CA 92688
Website
NTEU.ORG

California records

California keeps its own records of charities and corporations. Search them by EIN 51-0192141 or by the name NATIONAL TREASURY EMPLOYEES UNION.

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 16, 2027Not due yet
2024September 30, 2025February 17, 2026990-N on file
2023September 30, 2024February 18, 2025990-N on file

File the 2025 990-N for NATIONAL TREASURY EMPLOYEES UNION

Due February 16, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
51-0192141
Tax-exempt status
501(c)(5): Labor, agricultural or horticultural organization
Donations deductible
No
Exempt since
1945
Accounting year ends
September
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Mayra Dimas
September 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Mayra Dimas
September 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Mayra Dimas
September 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Mayra Dimas
September 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2007
Officer: Ellen Kay Rogers
September 30, 2008≤ $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 51-0192141).

Questions about NATIONAL TREASURY EMPLOYEES UNION

What is the EIN of NATIONAL TREASURY EMPLOYEES UNION?
The employer identification number (EIN) of NATIONAL TREASURY EMPLOYEES UNION is 51-0192141.
Is NATIONAL TREASURY EMPLOYEES UNION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(5) since 1945.
Are donations to NATIONAL TREASURY EMPLOYEES UNION tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does NATIONAL TREASURY EMPLOYEES UNION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of NATIONAL TREASURY EMPLOYEES UNION due?
The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did NATIONAL TREASURY EMPLOYEES UNION last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended September 30, 2025.
Who is the principal officer of NATIONAL TREASURY EMPLOYEES UNION?
The 990-N for 2024 names Mayra Dimas.

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