Steps to reproduce : - Install sale_order_taxes (v8.0) - setup currency without decimals - setup a 5% tax and a 13% tax - make a quotation with qty=915 price_unit=150 taxes = 5%,13% - compute totals - we have 5% tax amount = 6863 (base =137250) - we have 13% tax amount = 17843 (base = 137250) Bad behaviour : - amount_untaxed = 24705 - amount_total =161955 Good behaviour : - amount_untaxed = 24706 - amount_total = 161956