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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 41-6038624

GEOLOGICAL SOCIETY OF MINNESOTA

Tax-exempt · MINNEAPOLIS, MN 55414

Address and contacts

Address (IRS master file)
PO BOX 141065, MINNEAPOLIS, MN 55414-6065
In care of
% MARY HINSKEEP
Mailing address (990-N for 2025)
PO BOX 141065, Minneapolis MN 55414
Principal officer (990-N for 2025)
David Wilhelm, PO Box 141065, Mineapolis MN 55414

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

Tax yearYear endedDueIRS public records
2025August 31, 2026January 15, 2027990-N on file
2024August 31, 2025January 15, 2026990-N on file
2023August 31, 2024January 15, 2025990-N on file

File the 2026 990-N for GEOLOGICAL SOCIETY OF MINNESOTA

Due January 18, 2028 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
41-6038624
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
1997
Accounting year ends
August
Files
Form 990-N (e-Postcard)
Category (NTEE)
Environment (C60Z)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: David Wilhelm
August 31, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: David Wilhelm
August 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: David Wilhelm
August 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: David Wilhelm
August 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: David Kelso
August 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: David Kelso
August 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: David Wilhelm
August 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: David Wilhelm
August 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 41-6038624).

Questions about GEOLOGICAL SOCIETY OF MINNESOTA

What is the EIN of GEOLOGICAL SOCIETY OF MINNESOTA?
The employer identification number (EIN) of GEOLOGICAL SOCIETY OF MINNESOTA is 41-6038624.
Is GEOLOGICAL SOCIETY OF MINNESOTA tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
Are donations to GEOLOGICAL SOCIETY OF MINNESOTA tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does GEOLOGICAL SOCIETY OF MINNESOTA file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of GEOLOGICAL SOCIETY OF MINNESOTA due?
The return for tax year 2026 (the year ending August 31, 2027) is due January 18, 2028. Form 8868 extends it by six months; the 990-N cannot be extended.
When did GEOLOGICAL SOCIETY OF MINNESOTA last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended August 31, 2026.
Who is the principal officer of GEOLOGICAL SOCIETY OF MINNESOTA?
The 990-N for 2025 names David Wilhelm.

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