This tool calculates the SNF Medicare Part-A proposed rates for FY 2018, to be effective October 1, 2017. Please note the 2018 copay is not available as of this posting and the 2017 copay of $164.50 has been used as an estimate and placeholder for 2018. The calculator will updated and revised when the 2018 copay amount is available. 2018P_SNF_Rate_Tool_050817