Skip to main content

Nonprofit · EIN 39-1967979

LAKE DENOON PTSO

Tax-exempt · MUSKEGO, WI 53150

Address and contacts

Address (IRS master file)
W216S10586 CROWBAR DR, MUSKEGO, WI 53150-8464
Mailing address (990-N for 2025)
W216S10586 Crowbar Road, Muskego WI 53150
Principal officer (990-N for 2025)
Sonia Szemborski, S80W17710 Brennan Drive, Muskego WI 53150

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

IRS record

EIN
39-1967979
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
2018
Accounting year ends
December
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Sonia Szemborski
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Rachel Zabkowicz
December 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Rachel Zabkowicz
December 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2021
Officer: Rachel Zabkowicz
December 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Rachel Zabkowicz
December 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Rachel Zabkowicz
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 39-1967979).

Questions about LAKE DENOON PTSO

What is the EIN of LAKE DENOON PTSO?
The employer identification number (EIN) of LAKE DENOON PTSO is 39-1967979.
Is LAKE DENOON PTSO tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2018.
Are donations to LAKE DENOON PTSO tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does LAKE DENOON PTSO file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of LAKE DENOON PTSO 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 LAKE DENOON PTSO 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 LAKE DENOON PTSO?
The 990-N for 2025 names Sonia Szemborski.

Other nonprofits in MUSKEGO

All nonprofits in MUSKEGO · Wisconsin