Enlarge image | Indiana Department of Revenue IT-6WTH For Use of Tax Year 2025 08/2024 Cut on line before mailing IT-6WTH 0824 Printed Name of Officer Title 6W Federal ID Number Due Date Signature of Officer Title Date Daytime Phone Calendar or Fiscal Year Ending Enter Total Tax Below INDIANA DEPARTMENT OF REVENUE P.O. BOX 6032 . INDIANAPOLIS, IN 46206-6032 |