All bidding in our auctions is conducted in Canadian funds, but you can pay the equivalent amount in US funds with your personal cheque or credit card. You can bid in US Dollars if you prefer. Just mark the appropriate box on the bid sheet or be sure to tell us if you are bidding by telephone or e-mail. We are specialists in shipping material all over the USA. We have been doing it for over 50 years! There is no sales tax or Customs Duty.