Each country has its own customs tariff policy, So it's hard for us to know all countries' customs tariff policy. We suggest every customer need learn some customs tariff policy about your own country before purchase.
Also we will help to mark the parcel as GIFT and write a low value. but sometimes this would not work, especially the destination is Spain or Danmark,because the Spainish or Dannish customs would require the payments transfer documents for customs clearance,if you can exchange the documents,we will help on marking low value.
All our products' price are not include tax, when it arrive destination, if need to pay tax , need customers to go to customs clearance and pay it.