The Illinois Security Deposit Interest Act requires certain landlords to make annual payments of interest on the security deposits of their residential tenants. Every year, the State of Illinois determines the rate to be paid. For 2015, the State of Illinois has announced that the interest rate to be used in calculating interest payments under the Act is 0.005%. This is the fourth year in a row that the rate has been set at 0.005%
Here are the historical rates for the current and prior year.