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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 54-1526892

INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL

Tax-exempt · BLACKSBURG, VA 24060

Address and contacts

Address (IRS master file)
320 CLAY ST SW, BLACKSBURG, VA 24060-4717
In care of
% ANYA PLUTNSKI
Mailing address (990-N for 2025)
320 Clay Street SW, Blacksburg VA 24060
Principal officer (990-N for 2025)
Donald L Opitz, 6014 N Avondale Ave, Chicago IL 60631

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 INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL

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

IRS record

EIN
54-1526892
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible
No
Exempt since
2009
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B82)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Donald L Opitz
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Donald L Opitz
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Donald L Opitz
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Donald Opitz
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Laura Perini
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Laura Perini
December 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 54-1526892).

Questions about INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL

What is the EIN of INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL?
The employer identification number (EIN) of INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL is 54-1526892.
Is INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
Are donations to INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL 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 INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL 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 INTERNATIONAL SOCIETY FOR THE HISTORY PHILOSOPHY AND SOCIAL?
The 990-N for 2025 names Donald L Opitz.

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