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Nonprofit · EIN 36-3250099

INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED

Tax-exempt (reinstated) · IRVINE, CA 92697

Address and contacts

Address (IRS master file)
1102 NATURAL SCIENCES II, IRVINE, CA 92697-0001
In care of
% ISMAR
Mailing address (990-N for 2025)
1102 Natural Sciences II, Irvine CA 92697
Principal officer (990-N for 2025)
Stephan Grzesiek, Spitalstrasse 41, Basel CH-4056, WZ

California records

California keeps its own records of charities and corporations. Search them by EIN 36-3250099 or by the name INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

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

IRS record

EIN
36-3250099
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
2012
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Revocation and reinstatement

Exemption revoked
May 15, 2010
Posted by the IRS
June 9, 2011
Reinstated
Effective May 15, 2010

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 2025
Officer: Stephan Grzesiek
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Stephan Grzesiek
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Stephan Grzesiek
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Stephan Grzesiek
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Robert Tycko
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Robert Tycko
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 36-3250099).

Questions about INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED

What is the EIN of INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED?
The employer identification number (EIN) of INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED is 36-3250099.
Is INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2010 and reinstated it effective May 15, 2010.
Are donations to INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERNATIONAL SOCIETY OF MAGNETIC RESONANCE CHARTED 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 OF MAGNETIC RESONANCE CHARTED 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 OF MAGNETIC RESONANCE CHARTED?
The 990-N for 2025 names Stephan Grzesiek.

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