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Nonprofit · EIN 31-1395297

GREATER CINCINNATI AQUARIUM SOCIETY

Tax-exempt · CINCINNATI, OH 45240

Address and contacts

Address (IRS master file)
PO BOX 40477, CINCINNATI, OH 45240-0477
In care of
% EDWARD J BABKA
Mailing address (990-N for 2023)
PO BOX 40477, CINCINNATI OH 45240
Principal officer (990-N for 2023)
Jan Benes, PO Box 40477, Cincinnati OH 45240

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, 2026Not on file
2024December 31, 2024May 15, 2025Not on file
2023December 31, 2023May 15, 2024990-N on file

IRS record

EIN
31-1395297
Tax-exempt status
501(c)(4): Social welfare organization
Donations deductible
No
Exempt since
1995
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2023
Officer: Jan Benes
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: JAN BENES
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Jan Benes
December 31, 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 31-1395297).

Questions about GREATER CINCINNATI AQUARIUM SOCIETY

What is the EIN of GREATER CINCINNATI AQUARIUM SOCIETY?
The employer identification number (EIN) of GREATER CINCINNATI AQUARIUM SOCIETY is 31-1395297.
Is GREATER CINCINNATI AQUARIUM SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(4) since 1995.
Are donations to GREATER CINCINNATI AQUARIUM SOCIETY tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does GREATER CINCINNATI AQUARIUM SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of GREATER CINCINNATI AQUARIUM SOCIETY due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did GREATER CINCINNATI AQUARIUM SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2023 for the year ended December 31, 2023.
Who is the principal officer of GREATER CINCINNATI AQUARIUM SOCIETY?
The 990-N for 2023 names Jan Benes.

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