Nobody likes extra costs and especially taxes, but surcharges (custom duties / import charges) may apply to shipments outside of Europe. These costs vary per country / territory and are not included in the shipping costs quoted on our website, nor can you prepay them through us. These are not costs that we can calculate nor influence for you as they are levied by your local tax authorities and / or customs offices.
We have a PDF that gives an indication of what you can expect in terms of import duties: See website.