The tax will equal $250 plus the product of the taxpayer’s taxable commercial activity in excess of $1 million for the calendar year multiplied by 0.57 percent. For example, if a business owner reports taxable commercial income in 2020 of $2.5 million, that person would pay 0.57 percent of $1.5 million, which is $8,550. In May 2019, Oregon imposed a new 0.57% tax on Oregon gross receipts above $1 million that is set to go into effect for 2020. The tax is expected to raise $1.4 billion per year. Oregon state income tax rate table for the 2019 - 2020 filing season has four income tax brackets with OR tax rates of 5%, 7%, 9% and 9.9% for Single, Married Filing Jointly, Married Filing Separately, and Head of Household statuses. The Oregon tax rate is unchanged from last year, however, the lower income tax brackets increased due to the annual inflation adjustment.