2025 Oregon Tax Brackets. Deduct the amount of tax paid from the tax calculation to provide an example of your 2025/26 tax refund. It consists of four income tax brackets, with rates increasing from 4.75% to.

37% for individual single taxpayers with incomes greater than $626,350 and for married couples who. Learn how to estimate your income tax with easy steps focusing on taxable income and understanding the results.