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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-0281779

AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS

Also known as AAUP OF IL

Tax-exempt · RIVER FOREST, IL 60305

Address and contacts

Address (IRS master file)
929 WILLIAM ST, RIVER FOREST, IL 60305-1456
In care of
% ALAN ILIFF
Mailing address (990-N for 2024)
929 N WILLIAM ST, RIVER FOREST IL 60305
Principal officer (990-N for 2024)
MICHAEL HARKINS, 929 N WILLIAM ST, RIVER FOREST IL 60305

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

Tax yearYear endedDueIRS public records
2025March 31, 2026August 17, 2026Not on file
2024March 31, 2025August 15, 2025990-N on file
2023March 31, 2024August 15, 2024990-N on file

File the 2025 990-N for AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS

Due August 17, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
20-0281779
Tax-exempt status
501(c)(4): Social welfare organization
Donations deductible
No
Exempt since
2006
Accounting year ends
March
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: MICHAEL HARKINS
March 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: MICHAEL HARKINS
March 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: ALAN ILIFF
March 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Alan Iliff
March 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 20-0281779).

Questions about AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS

What is the EIN of AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS?
The employer identification number (EIN) of AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS is 20-0281779.
Is AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 2006.
Are donations to AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS due?
The return for tax year 2025 (the year ending March 31, 2026) is due August 17, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended March 31, 2025.
Who is the principal officer of AMERICAN ASSOCIATION OF UNIVERSITY PROFESSORS OF ILLINOIS?
The 990-N for 2024 names MICHAEL HARKINS.

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