May 31st is the deadline for assessing personal and business property in Washington and Benton County.
Failure to assess by May 31st will result in a 10% late assessment penalty.
Property tax payments must be made by October 15th. Any payments made after the due date are subjected to penalties.
EDITOR'S NOTE: In an earlier version of this story, we incorrectly reported December 31, 2013 as a due date.