(Salem, OR) -- The Oregon Department of Revenue reports that about half of Oregonians have filed their state income taxes. They expect around two-point-two million people to file returns this year. Of the one-point-one million people who have filed so far, over 820-thousand have received refunds. The Oregon Department of Revenue website has a "Where's My Refund" tool. Both federal and state income tax returns need to be filed by April 18th, because in Washington D.C. April 17th is the Emancipation Day holiday.