On August 31, 2018, the Indiana Department of Revenue issued a tax bulletin regarding the recently resolved legal challenge to the state's remote sellers law. The department will begin enforcing Indiana's economic nexus law on October 1, 2018. Pursuant to House Enrolled Act (HEA) 1129, Indiana law (IC 6-2.5-2.1(c)) requires a seller without physical presence in Indiana to collect sales tax on a retail transaction made in Indiana, remit the sales tax, and comply with all applicable procedures and requirements of the sales tax laws as if the retail merchant has a physical presence in Indiana, if: (1) the retail merchant's gross revenue from sales into Indiana in a calendar year exceeds $100,000; or (2) the retail merchant makes sales into Indiana in more than 200 separate transactions.