WABASH COUNTY, Ind. – All personal property tax returns must be filed in the County Assessor’s Office by May 15, 2018. Every person, including any firm, company, farmer, or individual owning, holding, possessing or controlling tangible personal property as of January 1 of any year, is required to file a personal property tax return each year. PENALTIES will be applied after May 15th for late filings. Contact the County Assessor’s Office for any additional information at 260-563-0661, Ext. 1227 or 1293.