Columbus Day Holiday – Office Closed Monday, October 12
October 12 is a state holiday. We will reopen on Tuesday.
Income Tax Regulations
Proposed Regulations
ITD 2026 002 – Proposal to Adopt 560-7-8-.71
ITD 2026 001 – Amendment to 560-7-4-.01 and 560-7-8-.34
Recently Adopted or Amended Regulations
Published Regulations
Visit the Secretary of State for published regulations.