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Nonprofit · EIN 26-2138108

CSFB INC

Tax-exempt · BROOKLYN, NY 11219

Address and contacts

Address (IRS master file)
PO BOX 190260, BROOKLYN, NY 11219-0260
Mailing address (990-N for 2025)
1274 49th Street PO Box 260, Brooklyn NY 11219
Principal officer (990-N for 2025)
Josef Dominitz, 4600 14th Ave 2B, Brooklyn NY 11219

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

Tax yearYear endedDueIRS public records
2025February 28, 2026July 15, 2026990-N on file
2024February 28, 2025July 15, 2025990-N on file
2023February 29, 2024July 15, 2024990-N on file

IRS record

EIN
26-2138108
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
2009
Accounting year ends
February
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Josef Dominitz
February 28, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Josef Dominitz
February 28, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Josef Dominitz
February 29, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Josef Dominitz
February 28, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Josef Dominitz
February 28, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Josef Dominitz
February 29, 2020≤ $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 26-2138108).

Questions about CSFB INC

What is the EIN of CSFB INC?
The employer identification number (EIN) of CSFB INC is 26-2138108.
Is CSFB INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
Are donations to CSFB INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CSFB INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of CSFB INC due?
The return for tax year 2026 (the year ending February 28, 2027) is due July 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did CSFB INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended February 28, 2026.
Who is the principal officer of CSFB INC?
The 990-N for 2025 names Josef Dominitz.

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