Enlarge image | Indiana Department of Revenue IT-6 For Use of Tax Year 2025 08/2024 Blank for Extension Payments Blank for Vouchers 1 - 4 Cut on line before mailing IT-6 0824 Printed Name of Officer Title 6 Federal ID Number Due Date Signature of Officer Title Date Daytime Phone Voucher Number Calendar or Fiscal Year Ending Enter Total Tax Below INDIANA DEPARTMENT OF REVENUE P.O. BOX 6032 . INDIANAPOLIS, IN 46206-6032 |