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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-0451099

CETOS RESEARCH ORGANIZATION

Tax-exempt · BAR HARBOR, ME 04609

Address and contacts

Address (IRS master file)
51 KEBO RIDGE RD, BAR HARBOR, ME 04609-1313
In care of
% ANN ZOIDIS
Mailing address (990-N for 2025)
51 KEBO RIDGE ROAD, BAR HARBOR ME 04609
Principal officer (990-N for 2025)
ANN ZOIDIS, 51 KEBO RIDGE ROAD, BAR HARBOR ME 04609

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, 2025990-N on file
2023June 30, 2024November 15, 2024990-N on file

File the 2026 990-N for CETOS RESEARCH ORGANIZATION

Due November 15, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
20-0451099
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
2004
Accounting year ends
June
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: ANN ZOIDIS
June 30, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: ANN ZOIDIS
June 30, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: ANN ZOIDIS
June 30, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: ANN ZOIDIS
June 30, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: ANN ZOIDIS
June 30, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: ANN ZOIDIS
June 30, 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 20-0451099).

Questions about CETOS RESEARCH ORGANIZATION

What is the EIN of CETOS RESEARCH ORGANIZATION?
The employer identification number (EIN) of CETOS RESEARCH ORGANIZATION is 20-0451099.
Is CETOS RESEARCH ORGANIZATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2004.
Are donations to CETOS RESEARCH ORGANIZATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CETOS RESEARCH ORGANIZATION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of CETOS RESEARCH ORGANIZATION 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 CETOS RESEARCH ORGANIZATION 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 CETOS RESEARCH ORGANIZATION?
The 990-N for 2025 names ANN ZOIDIS.

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