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Nonprofit · EIN 39-1835630

UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY

Tax-exempt · MIDDLETON, WI 53562

Address and contacts

Address (IRS master file)
7974 UW HEALTH CT, MIDDLETON, WI 53562-5531
In care of
% KAREN RANTHUN

What it must file and when

IRS records say it files Not required (state instrumentality). Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025Check at the IRS
2023June 30, 2024November 15, 2024Check at the IRS

IRS record

EIN
39-1835630
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Hospital or medical research organization
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1996
Accounting year ends
June
Files
Not required (state instrumentality)
Category (NTEE)
Health care (E22Z)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-TJune 2025–––IRS
990-TJune 2024–––IRS
990-TJune 2023–––IRS
990-TJune 2022–––IRS
990-TJune 2021–––IRS

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 39-1835630).

Questions about UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY

What is the EIN of UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY?
The employer identification number (EIN) of UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY is 39-1835630.
Is UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1996.
Are donations to UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY file?
Form Not required (state instrumentality).
When is the next return of UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY last file with the IRS?
There is no e-filed return or e-Postcard for it in the IRS public files.

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