Real property values are established January 1 each year by the Kenai Peninsula Borough. Roll is certified June 1. If you pay in two installments the first installment is due September 15, second installment due November 15. If you choose to make one payment in full the due date is October 15. 4.5 mills are collected on behalf of the City of Homer. Kenai Peninsula Borough collects and distributes all taxes for the City of Homer.