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Nonprofit · EIN 42-1330856

LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA

Tax-exempt (reinstated) · ONAWA, IA 51040

Address and contacts

Address (IRS master file)
26075 HIGHWAY K45, ONAWA, IA 51040-8551
In care of
% JAMES ROBINS
Mailing address (990-N for 2020)
26075 Highway K 45, Onawa IA 51040
Principal officer (990-N for 2020)
Ken Mertes, 26075 Highway K45, Onawa IA 51040

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, 2024Not on file

At risk of automatic revocation

None of the last three returns is in the IRS public files. The IRS revokes tax-exempt status after three consecutive years without a return. Recent filings can take a few weeks to appear.

File the 2025 990-N for LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA

Due May 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
42-1330856
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
2025
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
May 15, 2024
Posted by the IRS
August 12, 2024
Reinstated
Effective July 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 2020
Officer: Ken Mertes
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Kenneth Mertes
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 42-1330856).

Questions about LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA

What is the EIN of LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA?
The employer identification number (EIN) of LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA is 42-1330856.
Is LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2024 and reinstated it effective July 15, 2025.
Are donations to LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA 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 LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA last file with the IRS?
The latest return in the IRS public files is the 990-N for 2020 for the year ended December 31, 2020.
Who is the principal officer of LOESS HILLS HISTORICAL SOCIETY OF MONONA COUNTY IOWA?
The 990-N for 2020 names Ken Mertes.

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