While there are no restrictions on the amount of money that you can bring across the border, you must report to both the US and Canadian border services amounts equal to or greater than $10,000. PERSONAL EXEMPTIONS ON PURCHASES AMERICANS RETURNING TO THE US Less than 48 hours: $ 200 US 48 hours or more:  $ 800 US duty-free personal exemption.                  next $ 1,000 US at 3%                  Including up to 100 cigars and 100 cigarettes. CANADIANS RETURNING TO CANADA Less than 24 hours: $ 50 CAN 48 hours or more:  $ 400 CAN                 Including up to 100 cigars and 200 cigarettes. 7 days or more:    $ 750 CAN                  Including up to 100 cigars and 200 cigarettes. DOCUMENTATION NEEDED FOR BORDER CROSSING LAND OR SEA TO THE US ( INCLUDING FERRIES ) A valid passport or passport card, or a NEXUS card. (A NEXUS card is a Trusted Traveler Program that provides quick travel for pre-approved, low risk travelers through special lanes.) A recent Washington State, New York or BC driver's license. Note: Children 15 years of age and younger require only a birth certificate or copy. (Certified copies are not required but are advised.) AIR TRAVEL TO THE US A valid passport, an Air NEXUS card, or a U.S. Coast Guard Merchant Marine Document. If a Canadian who is on a 7-day trip to New York buys $ 800 CAN worth of goods, how much should he pay tax on when returning home?
$ 800 CAN $750 CAN $ 400 CAN $ 50 CAN