I have probably had 10-12 online orders over the last 6 months and twice I have been charged taxes and/or brokerage, but no rhyme or reason to which orders. At first I thought it was because an order contained notions or supplies not necessary made in the USA and therefore free trade does not apply, but that is not always the case and the values of orders have been anywhere from $50 to $250 and that did not seem to be the difference either. The twice that there were additonal charges the orders did come through Canada Post, but so do my orders from Connecting Threads and I have never had additional charges on them and that is where I have ordered quilt batts so some of those parcels are very large, not heavy but definately oversized. Maybe someone can enlighten us as to what the rules in fact are.