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

Nonprofit · EIN 26-1780827

THREE RIVERS MICROSCOPY SOCIETY

Also known as 3RMS

Tax-exempt (reinstated) · ROSTRAVER TWP, PA 15012

Address and contacts

Address (IRS master file)
226 PAWNEE ST, ROSTRAVER TWP, PA 15012-4802
In care of
% KEN R ANDERSON
Mailing address (990-N for 2024)
226 Pawnee St, Rostraver Twp PA 15012
Principal officer (990-N for 2024)
Ken R Anderson, 226 Pawnee St, Rostraver Twp PA 15012

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

File the 2025 990-N for THREE RIVERS MICROSCOPY SOCIETY

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

IRS record

EIN
26-1780827
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
2020
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
May 15, 2019
Posted by the IRS
June 8, 2020
Reinstated
Effective March 15, 2020

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 2024
Officer: Ken R Anderson
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Ken R Anderson
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Ken R Anderson
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Ken R Anderson
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Ken Anderson
December 31, 2020≤ $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 26-1780827).

Questions about THREE RIVERS MICROSCOPY SOCIETY

What is the EIN of THREE RIVERS MICROSCOPY SOCIETY?
The employer identification number (EIN) of THREE RIVERS MICROSCOPY SOCIETY is 26-1780827.
Is THREE RIVERS MICROSCOPY SOCIETY tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2019 and reinstated it effective March 15, 2020.
Are donations to THREE RIVERS MICROSCOPY SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does THREE RIVERS MICROSCOPY SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of THREE RIVERS MICROSCOPY 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 THREE RIVERS MICROSCOPY SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended December 31, 2024.
Who is the principal officer of THREE RIVERS MICROSCOPY SOCIETY?
The 990-N for 2024 names Ken R Anderson.

Other nonprofits in ROSTRAVER TWP

All nonprofits in ROSTRAVER TWP · Pennsylvania · Science and technology