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Nonprofit · EIN 33-4377561

EASTERN SIERRA RESEARCH INSTITUTE

Tax-exempt · RENO, NV 89557

Address and contacts

Address (IRS master file)
1664 N VIRGINIA ST ARF MS-0525, RENO, NV 89557-0001
Mailing address (990-N for 2025)
1664 N Virginia St ARF MS0525, Reno NV 89557
Principal officer (990-N for 2025)
Benedict Smail, 2475 Robb Drive Apt 1436, Reno NV 89523
Website
esrib.org

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026990-N on file
2024June 30, 2025November 17, 2025Check at the IRS
2023June 30, 2024November 15, 2024Check at the IRS

IRS record

EIN
33-4377561
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
2025
Accounting year ends
June
Files
Form 990-N (e-Postcard)
Category (NTEE)
Medical research (H90)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Benedict Smail
June 30, 2026≤ $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 33-4377561).

Questions about EASTERN SIERRA RESEARCH INSTITUTE

What is the EIN of EASTERN SIERRA RESEARCH INSTITUTE?
The employer identification number (EIN) of EASTERN SIERRA RESEARCH INSTITUTE is 33-4377561.
Is EASTERN SIERRA RESEARCH INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
Are donations to EASTERN SIERRA RESEARCH INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does EASTERN SIERRA RESEARCH INSTITUTE file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of EASTERN SIERRA RESEARCH INSTITUTE due?
The return for tax year 2026 (the year ending June 30, 2027) is due November 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did EASTERN SIERRA RESEARCH INSTITUTE last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended June 30, 2026.
Who is the principal officer of EASTERN SIERRA RESEARCH INSTITUTE?
The 990-N for 2025 names Benedict Smail.

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