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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 05-0485035

REGENERATIVE SCIENCES INSTITUTE

Tax-exempt · SUNNYVALE, CA 94089

Address and contacts

Address (IRS master file)
1230 BORDEAUX DR, SUNNYVALE, CA 94089-1202
In care of
% ANDREW MENDELSOHN
Mailing address (990-N for 2025)
1230 Bordeaux Dr, Sunnyvale CA 94089
Principal officer (990-N for 2025)
Andrew Mendelsohn, 107 McKinney Ave, Pacifica CA 94044

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 REGENERATIVE SCIENCES INSTITUTE

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

IRS record

EIN
05-0485035
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
1995
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Human services (P80)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Andrew Mendelsohn
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Andrew Mendelsohn
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: ANDREW MENDELSOHN
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: ANDREW MENDELSOHN
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Andrew Mendelsohn
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Andrew Mendelsohn
December 31, 2019≤ $50,000 receipts––e-Postcard

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about REGENERATIVE SCIENCES INSTITUTE

What is the EIN of REGENERATIVE SCIENCES INSTITUTE?
The employer identification number (EIN) of REGENERATIVE SCIENCES INSTITUTE is 05-0485035.
Is REGENERATIVE SCIENCES INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1995.
Are donations to REGENERATIVE SCIENCES INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does REGENERATIVE SCIENCES INSTITUTE file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of REGENERATIVE SCIENCES INSTITUTE 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 REGENERATIVE SCIENCES INSTITUTE 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 REGENERATIVE SCIENCES INSTITUTE?
The 990-N for 2025 names Andrew Mendelsohn.

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