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IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 20-2101174

SOUTHEAST FOX RIVER PARTNERSHIP

Tax-exempt · OCONOMOWOC, WI 53066

Address and contacts

Address (IRS master file)
N62W35539 DOOLAN DR, OCONOMOWOC, WI 53066-6239
In care of
% THOMAS SLAWSKI
Mailing address (990-N for 2025)
N62W35539 Doolan Dr, Oconomowoc WI 53066
Principal officer (990-N for 2025)
Thomas Slawski, N62W35539 Doolan Dr, Oconomowoc WI 53066

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 SOUTHEAST FOX RIVER PARTNERSHIP

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

IRS record

EIN
20-2101174
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
2006
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Environment (C300)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Thomas Slawski
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Thomas Slawski
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Thomas Slawski
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: Thomas Slawski
December 31, 2022≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Thomas Slawski
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Thomas Slawski
December 31, 2019≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Thomas Slawski
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 20-2101174).

Questions about SOUTHEAST FOX RIVER PARTNERSHIP

What is the EIN of SOUTHEAST FOX RIVER PARTNERSHIP?
The employer identification number (EIN) of SOUTHEAST FOX RIVER PARTNERSHIP is 20-2101174.
Is SOUTHEAST FOX RIVER PARTNERSHIP tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2006.
Are donations to SOUTHEAST FOX RIVER PARTNERSHIP tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does SOUTHEAST FOX RIVER PARTNERSHIP file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of SOUTHEAST FOX RIVER PARTNERSHIP 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 SOUTHEAST FOX RIVER PARTNERSHIP 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 SOUTHEAST FOX RIVER PARTNERSHIP?
The 990-N for 2025 names Thomas Slawski.

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