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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 46-1145979

MARINE AND COASTAL ECOLOGY RESEARCH CENTER

Tax-exempt · SPRING HILL, FL 34609

Address and contacts

Address (IRS master file)
1394 ALAMEDA DR, SPRING HILL, FL 34609-5707
In care of
% MITHRIEL MACKAY
Mailing address (990-N for 2024)
1394 Alameda Dr, Spring Hill FL 34609
Principal officer (990-N for 2024)
Mithriel MacKay, 1394 Alameda Dr, Spring Hill FL 34609

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, 2026Not on file
2024December 31, 2024May 15, 2025990-N on file
2023December 31, 2023May 15, 2024990-N on file

File the 2025 990-N for MARINE AND COASTAL ECOLOGY RESEARCH CENTER

Due May 15, 2026 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
46-1145979
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2015
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Environment (C60)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2024
Officer: Mithriel MacKay
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Mithriel MacKay
December 31, 2023≤ $50,000 receipts––e-Postcard
990-EZDecember 2022–––IRS
990-EZDecember 2021–––IRS
990-N for 2020
Officer: MITHRIEL MACKAY
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: MITHRIEL MACKAY
December 31, 2019≤ $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 46-1145979).

Questions about MARINE AND COASTAL ECOLOGY RESEARCH CENTER

What is the EIN of MARINE AND COASTAL ECOLOGY RESEARCH CENTER?
The employer identification number (EIN) of MARINE AND COASTAL ECOLOGY RESEARCH CENTER is 46-1145979.
Is MARINE AND COASTAL ECOLOGY RESEARCH CENTER tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
Are donations to MARINE AND COASTAL ECOLOGY RESEARCH CENTER tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MARINE AND COASTAL ECOLOGY RESEARCH CENTER file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MARINE AND COASTAL ECOLOGY RESEARCH CENTER due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MARINE AND COASTAL ECOLOGY RESEARCH CENTER last file with the IRS?
The latest return in the IRS public files is the 990-N for 2024 for the year ended December 31, 2024.
Who is the principal officer of MARINE AND COASTAL ECOLOGY RESEARCH CENTER?
The 990-N for 2024 names Mithriel MacKay.

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