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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 55-6025702

INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS

Also known as 598

Tax-exempt · S CHARLESTON, WV 25303

Address and contacts

Address (IRS master file)
321 5TH AVE, S CHARLESTON, WV 25303-1224
In care of
% KENNETH PRITT
Mailing address (990-N for 2025)
321 5th Ave, S Charleston WV 25303
Principal officer (990-N for 2025)
Robert Thompson, 321 5th Ave, S Charleston WV 25303

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 INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS

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

IRS record

EIN
55-6025702
Tax-exempt status
501(c)(5): Labor, agricultural or horticultural organization
Donations deductible
No
Exempt since
1966
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Robert Thompson
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Robert M Thompson
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: ROBERT M THOMPSON
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: ROBERT M THOMPSON
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Rose Hairston
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: KENNETH D PRITT
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 55-6025702).

Questions about INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS

What is the EIN of INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS?
The employer identification number (EIN) of INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS is 55-6025702.
Is INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(5) since 1966.
Are donations to INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS 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 INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS 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 INTERNATIONAL ASSOCIATION OF MACHINISTS & AEROSPACE WORKERS?
The 990-N for 2025 names Robert Thompson.

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