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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 81-5414419

INDUSTRIAL WORKERS OF THE WORLD

Also known as SAN DIEGO GENERAL MEMBERSHIP BRANCH

Tax-exempt · SAN DIEGO, CA 92168

Address and contacts

Address (IRS master file)
PO BOX 882226, SAN DIEGO, CA 92168-2226
Mailing address (990-N for 2025)
PO Box 882226, San Diego CA 92168
Principal officer (990-N for 2025)
Eric Chamberlin, 3381 Meridian Ave, San Diego CA 92115

California records

California keeps its own records of charities and corporations. Search them by EIN 81-5414419 or by the name INDUSTRIAL WORKERS OF THE WORLD.

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 INDUSTRIAL WORKERS OF THE WORLD

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

IRS record

EIN
81-5414419
Tax-exempt status
501(c)(5): Labor, agricultural or horticultural organization
Donations deductible
No
Exempt since
2013
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Employment (J40)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Eric Chamberlin
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Kurt McLean
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Eric Chamberlin
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Eric Chamberlin
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: ERIC CARL CHAMBERLIN
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 81-5414419).

Questions about INDUSTRIAL WORKERS OF THE WORLD

What is the EIN of INDUSTRIAL WORKERS OF THE WORLD?
The employer identification number (EIN) of INDUSTRIAL WORKERS OF THE WORLD is 81-5414419.
Is INDUSTRIAL WORKERS OF THE WORLD tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(5) since 2013.
Are donations to INDUSTRIAL WORKERS OF THE WORLD tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does INDUSTRIAL WORKERS OF THE WORLD file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INDUSTRIAL WORKERS OF THE WORLD 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 INDUSTRIAL WORKERS OF THE WORLD 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 INDUSTRIAL WORKERS OF THE WORLD?
The 990-N for 2025 names Eric Chamberlin.

Other nonprofits in SAN DIEGO

All nonprofits in SAN DIEGO · California · Employment