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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-3971791

SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY

Tax-exempt · LAS VEGAS, NV 89154

Address and contacts

Address (IRS master file)
4505 S MARYLAND PKWY BOX 455030, LAS VEGAS, NV 89154-9900
In care of
% SCOTT LINFIELD
Mailing address (990-N for 2025)
4505 S Maryland Pkwy Box 455030, Las Vegas NV 89154
Principal officer (990-N for 2025)
Stephen Benning, 4505 S Maryland Pkwy Box 455030, Las vegas NV 89154

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 SCIENTIFIC STUDY OFPSYCHOPATHY

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

IRS record

EIN
20-3971791
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
2006
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Stephen Benning
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Stephen Benning
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Stephen Benning
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Stephen Benning
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Essi Viding
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Eva Kimonis
December 31, 2020≤ $50,000 receipts––e-Postcard
990December 2019–––IRS
990-N for 2018
Officer: Adelle Forth
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 20-3971791).

Questions about SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY

What is the EIN of SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY?
The employer identification number (EIN) of SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY is 20-3971791.
Is SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2006.
Are donations to SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SOCIETY FOR THE SCIENTIFIC STUDY OFPSYCHOPATHY 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 SCIENTIFIC STUDY OFPSYCHOPATHY 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 SCIENTIFIC STUDY OFPSYCHOPATHY?
The 990-N for 2025 names Stephen Benning.

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