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Oregon edges closer to âkickerâ refund. The latest forecast of Oregon tax revenue is increasing speculation taxpayers could see a kicker refund. If Democratic Gov. John Kitzhaber is re-elected, he will base his budget on the Nov. 13 forecast.
Oregon Income Tax. Oregon was one of the first western states to adopt a state income tax, enacting its current tax in 1930. It consists of four income tax brackets, with rates increasing from 5% to a top rate of 9.9%. That top marginal rate the third highest rate in the country.