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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 80-0312352

SOUTHERN ILLINOIS EARTH SCIENCE CLUB

Tax-exempt (reinstated) · CENTRALIA, IL 62801

Address and contacts

Address (IRS master file)
1019 E BROADWAY, CENTRALIA, IL 62801-3301
In care of
% MICHAEL
Mailing address (990-N for 2025)
1019 E Broadway, Centralia IL 62801
Principal officer (990-N for 2025)
Michael Chontofalsky, 1019 East Broadway, Centralia IL 62801

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, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2026 990-N for SOUTHERN ILLINOIS EARTH SCIENCE CLUB

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

IRS record

EIN
80-0312352
Tax-exempt status
501(c)(7): Social or recreational club
Donations deductible
No
Exempt since
2024
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
May 15, 2016
Posted by the IRS
August 8, 2016
Reinstated
Effective May 15, 2016

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: Michael Chontofalsky
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Michael Chontofalsky
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Michael Chontofalsky
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2012
Officer: Lucille Dame
December 31, 2012≤ $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 80-0312352).

Questions about SOUTHERN ILLINOIS EARTH SCIENCE CLUB

What is the EIN of SOUTHERN ILLINOIS EARTH SCIENCE CLUB?
The employer identification number (EIN) of SOUTHERN ILLINOIS EARTH SCIENCE CLUB is 80-0312352.
Is SOUTHERN ILLINOIS EARTH SCIENCE CLUB tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2016 and reinstated it effective May 15, 2016.
Are donations to SOUTHERN ILLINOIS EARTH SCIENCE CLUB tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does SOUTHERN ILLINOIS EARTH SCIENCE CLUB file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SOUTHERN ILLINOIS EARTH SCIENCE CLUB 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 SOUTHERN ILLINOIS EARTH SCIENCE CLUB 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 SOUTHERN ILLINOIS EARTH SCIENCE CLUB?
The 990-N for 2025 names Michael Chontofalsky.

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