For orders made in US there are no extra charges for taxes, duties or fees.
For orders outside the U.S. additional charges may arise in case air transport is selected where fuel surcharges, eventual duties, taxes and customs charges are not included. The shipping cost is always confirmed before shipping the order and is charged to the buyer.
For orders outside the U.S., The extra charges (fuel surcharge, duties, taxes and customs charges) weigh on the buyer with the total cost always confirmed before the order is dispatched.