November 15, 2018 17:09 Updated Follow Lobbyist Activity Reports are due two times per year. May 31st and November 30th. http://www.in.gov/ilrc/2448.htm Related articles When is the Registration deadline for Employer and Compensated Lobbyists? Is online filing of Reports and Registration Statements available? What is the fee to register a For-Profit Lobbyist? Need Help? Have problems? Who do I call? What Agency? What is the penalty for late filing of Activity Report and Registration Statements?