Real estate taxes and mobile home taxes are due this week. The first half of these taxes must be paid by Friday, September 30th, to avoid a penalty. Beginning October 1st, a penalty of 1.5% per month, rounded to the nearest whole dollar will be applied. Statement coupons must accompany payments, which can be dropped off at the Washington County Treasurer’s Office or placed in the drop box on the west side of the courthouse. You can also mail payments to the treasurer’s office or pay online at IowaTreasurers.org.