Sole Proprietorship Tax Deadlines in Oregon
Federal and state filing dates, extensions, and estimate schedules for 2026.
Oregon filing deadline
Business income reported on OR personal return.
Due: Apr 15, 2026
Extension: Oct 15, 2026
Form: Form OR-40
Estimated payments
Estimated payment dates: Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027.
Due: Apr 15, 2026
FAQ
Does Oregon require Sole Proprietorship estimated payments?
Estimated payments are scheduled for Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027.
Where can I file Oregon Sole Proprietorship taxes?
Use Oregon Department of Revenue resources at https://www.oregon.gov/dor for forms and filing instructions.