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Nonprofit · EIN 45-4195206

OPTIMIST BRAIN BOWL

Tax-exempt (reinstated) · DENVER, CO 80231

Address and contacts

Address (IRS master file)
3020 S VALENTIA ST, DENVER, CO 80231-4217
In care of
% CHRIS WIENECKE
Mailing address (990-N for 2025)
3020 S Valentia St, Denver CO 80231
Principal officer (990-N for 2025)
Laura Mitchell, 3020 S Valentia St, Denver CO 80231

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

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026990-N on file
2024June 30, 2025November 17, 2025990-N on file
2023June 30, 2024November 15, 2024Check at the IRS

IRS record

EIN
45-4195206
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
2026
Accounting year ends
June
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B90)

Revocation and reinstatement

Exemption revoked
November 15, 2023
Posted by the IRS
March 11, 2024
Reinstated
Effective October 15, 2025

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 2025
Officer: Laura Mitchell
June 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Laura Mitchell
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Chris Wienecke
June 30, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Christopher J Wienecke
June 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 45-4195206).

Questions about OPTIMIST BRAIN BOWL

What is the EIN of OPTIMIST BRAIN BOWL?
The employer identification number (EIN) of OPTIMIST BRAIN BOWL is 45-4195206.
Is OPTIMIST BRAIN BOWL tax-exempt?
Yes. The IRS revoked its exemption on November 15, 2023 and reinstated it effective October 15, 2025.
Are donations to OPTIMIST BRAIN BOWL tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does OPTIMIST BRAIN BOWL file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of OPTIMIST BRAIN BOWL due?
The return for tax year 2026 (the year ending June 30, 2027) is due November 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did OPTIMIST BRAIN BOWL last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended June 30, 2026.
Who is the principal officer of OPTIMIST BRAIN BOWL?
The 990-N for 2025 names Laura Mitchell.

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