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Nonprofit · EIN 39-1033301

EAA AVIATION FOUNDATION INC

Tax-exempt · OSHKOSH, WI 54902

Address and contacts

Address (IRS master file)
3000 POBEREZNY RD, OSHKOSH, WI 54902-8939
In care of
% KIMBERLY DIEDRICH

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in February, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025February 28, 2026July 15, 2026Not on file
2024February 28, 2025July 15, 2025990 on file
2023February 29, 2024July 15, 2024990 on file

IRS record

EIN
39-1033301
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
1964
Accounting year ends
February
Files
Form 990 or 990-EZ
Assets (IRS master file)
$76,672,861
Income (IRS master file)
$26,000,430

Filing history

FormYear endedRevenueExpensesAssetsReturn
990February 2025–––IRS
990-TFebruary 2025–––IRS
990February 2024–––IRS
990-TFebruary 2024–––IRS
990February 2023$9,812,551$7,067,739$64,595,062IRS
990-TFebruary 2023–––IRS
990February 2022$12,445,510$7,309,892$66,251,406IRS
990-TFebruary 2022–––IRS
990February 2021–––IRS
990-TFebruary 2021–––IRS
990February 2020–––IRS
990February 2019–––IRS
990February 2018–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about EAA AVIATION FOUNDATION INC

What is the EIN of EAA AVIATION FOUNDATION INC?
The employer identification number (EIN) of EAA AVIATION FOUNDATION INC is 39-1033301.
Is EAA AVIATION FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1964.
Are donations to EAA AVIATION FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does EAA AVIATION FOUNDATION INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of EAA AVIATION FOUNDATION INC due?
The return for tax year 2025 (the year ending February 28, 2026) is due July 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did EAA AVIATION FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended February 2025.

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