Kemper Corporation 5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062

The debentures will bear interest (i) from and including the date of original issue to, but excluding, March 15, 2027, at the fixed rate of 5.875% per annum and (ii) from, and including, March 15, 2027, during each Reset Period (as defined below), at a rate per annum equal to the Five-Year Treasury Rate (as defined below) as of the most recent Reset Interest Determination Date (as defined below) plus 4.140% to be reset on each Reset Date (as defined below). We will pay interest on the debentures quarterly on March 15, June 15, September 15 and December 15 of each year, beginning on June 15, 2022. We may defer interest payments during one or more deferral periods for up to five consecutive years each as described in this prospectus supplement. See “Description of Debentures—Option to Defer Interest Payments.” The debentures will mature on March 15, 2062.