Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 30-0266307

THE DELAWARE MINERALOGICAL SOCIETY

Tax-exempt · CHADDS FORD, PA 19317

Address and contacts

Address (IRS master file)
833 MCCOMB LN, CHADDS FORD, PA 19317-9228
In care of
% ERIC HOTTENSTEIN
Mailing address (990-N for 2025)
833 McComb Lane, Chadds Ford PA 19317
Principal officer (990-N for 2025)
Thomas J Zunino, 523 Chandler Mill Road, Kennett Square PA 19348

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 THE DELAWARE MINERALOGICAL SOCIETY

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

IRS record

EIN
30-0266307
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
2005
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Thomas J Zunino
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Caridan Bradley
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Eric Hottenstein
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Eric Hottenstein
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: CHRISTINE VERDI
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Eric Hottenstein
December 31, 2018≤ $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 30-0266307).

Questions about THE DELAWARE MINERALOGICAL SOCIETY

What is the EIN of THE DELAWARE MINERALOGICAL SOCIETY?
The employer identification number (EIN) of THE DELAWARE MINERALOGICAL SOCIETY is 30-0266307.
Is THE DELAWARE MINERALOGICAL SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2005.
Are donations to THE DELAWARE MINERALOGICAL SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does THE DELAWARE MINERALOGICAL SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of THE DELAWARE MINERALOGICAL SOCIETY 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 THE DELAWARE MINERALOGICAL SOCIETY 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 THE DELAWARE MINERALOGICAL SOCIETY?
The 990-N for 2025 names Thomas J Zunino.

Other nonprofits in CHADDS FORD

All nonprofits in CHADDS FORD · Pennsylvania · Science and technology