For shipments to a Canadian address: we pay the 5% GST. So: in GST provinces, we reduce your cost by the amount of the GST. In PST provinces, we only charge you the PST portion, and we reduce your cost by the amount of the GST. In both cases, we remit the GST and any PST on your behalf.
For shipments to a US address: NO tax is payable at this time. Only time will tell if any County, State, or Federal taxes will have to be charged by foreign vendors when shipping into the US.