Credit and debit cards are widely accepted across Canada, and ATM machines with 24-hour access are available throughout greater Victoria. The extent to which you can use your card and the fees that apply depend on your credit card company and bank. Be sure to call your bank and credit card companies before departing to avoid any surprise charges and to inform them of your travel plans to prevent your card from being deactivated.
Many businesses in Victoria accept U.S. dollars, but they are able to set their own exchange rate, so the rates may vary from store to store and change will be given in Canadian dollars.