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Nonprofit · EIN 39-1792050

WAUKESHA ENGINE HISTORICAL SOCIETY INC

Tax-exempt (reinstated) · WAUKESHA, WI 53188

Address and contacts

Address (IRS master file)
1000 WEST ST PAUL, WAUKESHA, WI 53188-0000
In care of
% BONNIE HUNKINS
Mailing address (990-N for 2024)
1000 West ST Paul, Waukesha WI 53188
Principal officer (990-N for 2024)
Bob Stachowicz, 535 Garden Prairie, Waukesha WI 53186

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 WAUKESHA ENGINE HISTORICAL SOCIETY INC

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

IRS record

EIN
39-1792050
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2016
Accounting year ends
September
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
February 15, 2014
Posted by the IRS
May 12, 2014
Reinstated
Effective February 15, 2014

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Bob Stachowicz
September 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Ronald Long
September 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Ronald Long
September 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Ronald Long
September 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Ronald Long
September 30, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Ronald Long
September 30, 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 39-1792050).

Questions about WAUKESHA ENGINE HISTORICAL SOCIETY INC

What is the EIN of WAUKESHA ENGINE HISTORICAL SOCIETY INC?
The employer identification number (EIN) of WAUKESHA ENGINE HISTORICAL SOCIETY INC is 39-1792050.
Is WAUKESHA ENGINE HISTORICAL SOCIETY INC tax-exempt?
Yes. The IRS revoked its exemption on February 15, 2014 and reinstated it effective February 15, 2014.
Are donations to WAUKESHA ENGINE HISTORICAL SOCIETY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does WAUKESHA ENGINE HISTORICAL SOCIETY INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of WAUKESHA ENGINE HISTORICAL SOCIETY INC 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 WAUKESHA ENGINE HISTORICAL SOCIETY INC 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 WAUKESHA ENGINE HISTORICAL SOCIETY INC?
The 990-N for 2024 names Bob Stachowicz.

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