Oregon’s poorest families pay more in taxes as a share of income than any group of taxpayers in the state, while the richest Oregonians pay the smallest share of any group. That is the conclusion of a new report by the Washington, D.C.-based Institute on Taxation and Economic Policy (ITEP).

“Oregon’s tax system is upside-down,” said Daniel Hauser, tax policy analyst with the Oregon Center for Public Policy, who examined the report. “Our tax system should reduce Oregon’s record-high levels of income inequality, not widen the gap.”

The ITEP report found that Oregon’s overall tax structure is regressive, with the lowest-income taxpayers paying 10.1 percent of their income in combined state and local taxes — a higher share than the 8.1 percent paid by Oregon’s richest 1 percent. Oregon families in the middle 20 percent of taxpayers also pay a larger share of their income in taxes than the richest, at 9.1 percent.

Even so, when considered in a national context, Oregon’s tax structure still looks better than that of most other states. According to the study, Oregon has the 10th least regressive tax system among all states and the District of Columbia. Oregon’s northern neighbor, Washington, has the nation’s most regressive tax structure.

The ITEP study, Who Pays?, takes into account all major state and local taxes, including personal income taxes, corporate income taxes, sales taxes, property taxes, estate taxes, and excise taxes such as gasoline and cigarette taxes.

“Oregon’s lowest-income residents are struggling to afford rent and put food on the table. Asking these Oregonians to pay a larger share of their income in taxes than the highest-income Oregonians is a disgrace,” said Hauser.

He called on the Oregon legislature to take steps to reverse this situation by “working on both ends of the income ladder.”

“Higher income tax rates on the most well-off needs to be on the table,” said Hauser. “This would not only help correct our unfair tax structure, but also raise revenue to invest in our schools and essential services.”

Hauser also urged lawmakers to ramp up Oregon’s Earned Income Tax Credit (EITC), a refundable tax credit that helps low-income working families. The Oregon EITC largely mirrors the federal tax credit that goes by the same name. Both in Oregon and nationally, the tax credit has enjoyed a long record of bipartisan support, said Hauser.

“A big boost to the Oregon EITC would help to correct Oregon’s flawed tax structure by lowering the taxes of those who earn the least,” said Hauser. “More importantly, it would help struggling families make ends meet.”

The Oregon Center for Public Policy is a non-partisan, non-profit institute that does in-depth research and analysis on budget, tax, and economic issues. The Center’s goal is to improve decision making and generate more opportunities for all Oregonians.