1、销项税:(20000/1.16)*0.16=2758.62进项税:(10000/1.16)*0.16=1379.31应交增值税:2758.62-1379.31=1379.312、应交税金:20000/1.03*0.03=582.523、应交增值税:20000/1.16*0.16-18000/1.16*0.16=275.86