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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 39-1366404

OPTIMIST INTERNATIONAL

Also known as 09072 OC OF FORT ATKINSON WI

Tax-exempt · FORT ATKINSON, WI 53538

Address and contacts

Address (IRS master file)
PO BOX 121, FORT ATKINSON, WI 53538-0121
In care of
% SHERRY MCKEE
Mailing address (990-N for 2025)
PO Box 121, Fort Atkinson WI 53538
Principal officer (990-N for 2025)
Sherry McKee, 808 Short St, Fort Atkinson WI 53538

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, 2025No data
2023December 31, 2023May 15, 2024No data

File the 2026 990-N for OPTIMIST INTERNATIONAL

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

IRS record

EIN
39-1366404
Tax-exempt status
501(c)(4): Social welfare organization
Donations deductible
No
Exempt since
1958
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Sherry McKee
December 31, 2025≤ $50,000 receipts––e-Postcard

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 OPTIMIST INTERNATIONAL

What is the EIN of OPTIMIST INTERNATIONAL?
The employer identification number (EIN) of OPTIMIST INTERNATIONAL is 39-1366404.
Is OPTIMIST INTERNATIONAL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 1958.
Are donations to OPTIMIST INTERNATIONAL tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does OPTIMIST INTERNATIONAL file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of OPTIMIST INTERNATIONAL 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 OPTIMIST INTERNATIONAL 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 OPTIMIST INTERNATIONAL?
The 990-N for 2025 names Sherry McKee.

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