For determination or calculation of tax, it is necessary to adjust the cost of the purchase to include the following items:
*Interest charges or financing fees are kept separate and not included in the base cost of a good when determing the amount of tax to charge on an invoice.
Zoll & Zollnebenspesen, Einfuhrumsatzsteuer (VAT) are NOT charged with USt.
Certain condition if met, result in the mandatory charge of tax on all sales which are invoiced.