Well the vat rate in Switzerland is only 7% luckily for you, so that will be on the invoice or credit card transaction. However,depending where you live, your country may levy some import duty, depending what it is that you have purchased and its relative value.
Certain goods are prohibited for import over a certain value, or at least have a duty that must be paid by the receiver of the goods.
Maybe Fedex or the people shipping for you can help yo, as they complete customs declaration for goods
In the U.S.A they have particular regulations, and then different ones in the UK. So it may be a case of wait and see, you may be lucky.