Minnesota Tax Deadlines
State income tax filing deadlines, extensions, and estimates for 2026.
Minnesota Department of Revenue
https://www.revenue.state.mn.us
individual deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form M1
MN returns must be filed by April 15; file by Oct 15 to avoid late filing penalty.
Estimated Payments
Sole Proprietorship deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form M1
Business income reported on MN personal return.
Estimated Payments
Partnership deadline
Due: Mar 16, 2026
Extension: Sep 15, 2026
Form: State partnership return
Calendar-year due date follows federal timing for pass-through entities.
S Corporation deadline
Due: Mar 16, 2026
Extension: Sep 15, 2026
Form: State S-corporation return
Calendar-year due date follows federal timing for pass-through entities.
C Corporation deadline
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: State C-corporation return
Calendar-year due date follows federal timing for corporations.
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 Minnesota.
FAQ
Does Minnesota conform to federal due dates?
Many Minnesota deadlines follow the federal calendar. Always confirm on Minnesota Department of Revenue.
Where can I file Minnesota tax forms?
Visit Minnesota Department of Revenue at https://www.revenue.state.mn.us for official forms and e-file options.