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Nonprofit · EIN 43-1753955

OPTIMIST INTERNATIONAL

Also known as 36602 MID-DAY OC OF MARSHALL MO

Tax-exempt · MARSHALL, MO 65340

Address and contacts

Address (IRS master file)
PO BOX 373, MARSHALL, MO 65340-0373
In care of
% LORI MATHEIS
Mailing address (990-N for 2024)
P O Box 373, MARSHALL MO 65340
Principal officer (990-N for 2024)
Lori Matheis, 2751 S Odell Ave, Marshall MO 65340

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 15, 2027Not due yet
2024September 30, 2025February 16, 2026990-N on file
2023September 30, 2024February 17, 2025990-N on file

IRS record

EIN
43-1753955
Tax-exempt status
501(c)(4): Social welfare organization
Exempt since
1958
Accounting year ends
September
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Lori Matheis
September 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Lori Matheis
September 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Lori Matheis
September 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Lori Matheis
September 30, 2022≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Lori Matheis
September 30, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Lori Matheis
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 43-1753955).

Questions about OPTIMIST INTERNATIONAL

What is the EIN of OPTIMIST INTERNATIONAL?
The employer identification number (EIN) of OPTIMIST INTERNATIONAL is 43-1753955.
Is OPTIMIST INTERNATIONAL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 1958.
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 2025 (the year ending September 30, 2026) is due February 15, 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 2024 for the year ended September 30, 2025.
Who is the principal officer of OPTIMIST INTERNATIONAL?
The 990-N for 2024 names Lori Matheis.

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