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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 46-1964003

WENAS MAMMOTH FOUNDATION

Tax-exempt · SELAH, WA 98942

Address and contacts

Address (IRS master file)
2741 S WENAS RD, SELAH, WA 98942-9159
In care of
% BRONWYN MAYO
Mailing address (990-N for 2025)
2741 S WENAS RD, SELAH WA 989429159
Principal officer (990-N for 2025)
Douglas Mayo, 2741 S Wenas Rd, Selah WA 98942

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 WENAS MAMMOTH FOUNDATION

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

IRS record

EIN
46-1964003
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
2013
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Douglas Mayo
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Douglas Mayo
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Douglas Mayo
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Douglas Mayo
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Douglas Mayo
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Douglas Mayo
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 46-1964003).

Questions about WENAS MAMMOTH FOUNDATION

What is the EIN of WENAS MAMMOTH FOUNDATION?
The employer identification number (EIN) of WENAS MAMMOTH FOUNDATION is 46-1964003.
Is WENAS MAMMOTH FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2013.
Are donations to WENAS MAMMOTH FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does WENAS MAMMOTH FOUNDATION file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of WENAS MAMMOTH FOUNDATION 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 WENAS MAMMOTH FOUNDATION 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 WENAS MAMMOTH FOUNDATION?
The 990-N for 2025 names Douglas Mayo.

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