Indiana is changing its kindergarten eligibility rules, meaning kids could enter kindergarten before their fifth birthday. The change was written into the state budget, moving back the eligibility date one month each of the next two years. Beginning in the 2019-20 school year, kids who turn 5 on or before Sept. 1 of the school year will be eligible to start kindergarten. In the 2020-21 school year, the eligibility date moves back to Oct. 1.