Oregon state income tax calculator
Estimate Oregon income tax using the 4.75% to 9.9% bracket schedule.
How this calculator works
Step 1 starts with the Oregon taxable income you already calculated on your return. If you are a part-year resident or nonresident, the tool applies the Oregon income percentage you provide to focus on Oregon-source income.
Step 2 applies Oregon's four-tier bracket schedule to estimate total tax.
Step 3 summarizes the effective and marginal rates so you can see how additional income would be taxed and whether your current estimate matches your expectations.
Frequently asked questions
What income should I enter?
Use Oregon taxable income from your return. If you only know total income, estimate deductions first or use the standard deduction tool.
Do part-year residents prorate income?
Yes. Use the Oregon income allocation percentage from your return to prorate taxable income before applying the Oregon bracket schedule.
Does Oregon use brackets?
Yes. Oregon uses a four-tier schedule with rates from 4.75% up to 9.9%, and thresholds vary by filing status.
Is this tax advice?
No. This tool provides estimates based on the inputs you provide and is not legal or tax advice.
Related tools
This tool provides estimates based on Oregon's published brackets. Not legal or tax advice.