Oregon‘s tax system ranks 30th overall on the 2025 State Tax Competitiveness Index. Oregon forgoes a sales tax, but doubles down on other forms of taxation. The state has a complex and progressive individual income tax system with four tax brackets, a top marginal rate of 9.9 percent, and a personal exemption structured as a tax credit. Additionally, the tax brackets are not adjusted for inflation. Portland has the highest combined local income tax rate in the nation (4 percent), adding an extra layer of tax burden for residents of the state’s largest city.
The absence of a sales tax in Oregon is offset by an overly complex corporate tax system, which includes a 7.6 percent corporate income tax, a 0.57 percent gross receipts tax (the Corporate Activity Tax), and additional corporate taxes at the local level, particularly in the Portland area. Although gross receipts taxes typically do not allow any deductions from gross sales, the CAT provides a 35 percent deduction for either labor costs or the cost of goods sold. However, this does not significantly improve Oregon’s competitiveness in attracting businesses, as the state’s corporate tax system ranks among the worst in the nation, comparable to Delaware, the only other state to combine corporate income and gross receipts taxes.
Oregon’s property tax system is moderately competitive, though the property tax burden relative to personal income is higher than in California and Washington. Additionally, the state imposes an estate tax with a maximum rate of 16 percent and the lowest estate tax exemption among states that levy the tax ($1 million), which further reduces the state’s competitiveness for high-net-worth individuals.
The State Tax Competitiveness Index enables policymakers, taxpayers, and business leaders to gauge how their states’ tax systems compare. While there are many ways to show how much state governments collect in taxes, the Index evaluates how well states structure their tax systems and provides a road map for improvement.
States that tax GILTI increase filing complexity, drive up the cost of tax compliance, and introduce unnecessary economic uncertainty and legal risk. 21 states and DC continue to tax GILTI despite these challenges.
Due to the peculiar design of the proposed tax increase, it’s true: the largest tax increase Oregon has ever seen would create a substantial budget shortfall.