Tax Programming Home Tax Programming Tax Rate programmingTo change the Tax Rate for your Cash Register please select the correct model from the following list: ER-180T ER-265 ER-285 ER-290 ER-350 ER-350 II ER-380 & ER-380M ER-390M ER-600 ER-650 Series ER-900 Series ER 4900 Series ER-5115 ER-5115 II ER-5200 M Series ER-5215 M SER-6500 Series SER-7000 Series SPS-300 Series SPS-500 Series SPS-1000 SPS-2000 Series