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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 36-4507376

SOCIETY FOR THE STUDY OF CYTOCHROMES P450

Tax-exempt · SLIDELL, LA 70461

Address and contacts

Address (IRS master file)
113 RUE JUNEAU, SLIDELL, LA 70461-5443
In care of
% WAYNE L BACKES
Mailing address (990-N for 2025)
113 Rue Juneau, Slidell LA 70461
Principal officer (990-N for 2025)
Wayne Backes, 113 Rue Juneau, Slidell LA 70461

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 SOCIETY FOR THE STUDY OF CYTOCHROMES P450

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

IRS record

EIN
36-4507376
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
2003
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Medical research (H99)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Wayne Backes
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Wayne Backes
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Craig Marcus
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Craig Marcus
December 31, 2018≤ $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 36-4507376).

Questions about SOCIETY FOR THE STUDY OF CYTOCHROMES P450

What is the EIN of SOCIETY FOR THE STUDY OF CYTOCHROMES P450?
The employer identification number (EIN) of SOCIETY FOR THE STUDY OF CYTOCHROMES P450 is 36-4507376.
Is SOCIETY FOR THE STUDY OF CYTOCHROMES P450 tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2003.
Are donations to SOCIETY FOR THE STUDY OF CYTOCHROMES P450 tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SOCIETY FOR THE STUDY OF CYTOCHROMES P450 file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SOCIETY FOR THE STUDY OF CYTOCHROMES P450 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 SOCIETY FOR THE STUDY OF CYTOCHROMES P450 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 SOCIETY FOR THE STUDY OF CYTOCHROMES P450?
The 990-N for 2025 names Wayne Backes.

Other nonprofits in SLIDELL

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