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Nonprofit · EIN 39-2829151

INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC

Tax-exempt · SILVER SPRING, MD 20910

Address and contacts

Address (IRS master file)
9011 1ST AVE, SILVER SPRING, MD 20910-2148
Mailing address (990-N for 2025)
9011 1st Ave, Silver Spring MD 20910
Principal officer (990-N for 2025)
Aaron Kornbluth, 9011 1st Ave, Silver Spring MD 20910

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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, 2025Check at the IRS
2023December 31, 2023May 15, 2024Check at the IRS

IRS record

EIN
39-2829151
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2026
Accounting year ends
December
Files
Form 990 or 990-EZ

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Aaron Kornbluth
December 31, 2025≤ $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 39-2829151).

Questions about INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC

What is the EIN of INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC?
The employer identification number (EIN) of INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC is 39-2829151.
Is INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2026.
Are donations to INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of INTERNATIONAL SHELLFISH RESTORATION SOCIETY ISRS INC 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 SHELLFISH RESTORATION SOCIETY ISRS INC 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 SHELLFISH RESTORATION SOCIETY ISRS INC?
The 990-N for 2025 names Aaron Kornbluth.

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