税(ぜい)金(きん) zeikin tax 税(ぜい)込(こみ) zeikomi tax included 課(か)税(ぜい) kazei taxation 税(ぜい)制(せい) zeisei tax system 納(のう)税(ぜい) nouzei tax payment 減(げん)税(ぜい) genzei tax reduction 税(ぜい)率(りつ) zeiritsu tax rate