Utah Tax Deadlines
State income tax filing deadlines, extensions, and estimates for 2026.
Utah State Tax Commission
https://tax.utah.gov
individual deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form TC-40
Utah income tax returns due April 15, 2026.
Estimated Payments
Sole Proprietorship deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form TC-40
Business income reported on UT personal return.
Estimated Payments
Partnership deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form TC-65
Utah partnership returns due April 15 for calendar year filers.
S Corporation deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form TC-20S
Utah S corporation returns due April 15 for calendar year filers.
C Corporation deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form TC-20
Utah corporate returns due April 15 for calendar year filers.
Estimated Payments
LLC deadline
Due: Mar 16, 2026
Extension: Sep 15, 2026
Form: State LLC return
Calendar-year due date follows federal timing for pass-through entities.
Nonprofit deadline
Due: May 15, 2026
Extension: Nov 15, 2026
Form: State nonprofit return
Nonprofit annual return generally due the 15th day of the 5th month.
Estimated Tax Payments
View all quarterly estimated payment due dates for Utah.
FAQ
Does Utah conform to federal due dates?
Many Utah deadlines follow the federal calendar. Always confirm on Utah State Tax Commission.
Where can I file Utah tax forms?
Visit Utah State Tax Commission at https://tax.utah.gov for official forms and e-file options.