You don't need to pay duty tax

for products made in North America as a result of NAFTA. You may pay sales tax, shipment charge, and broker fee which is charged to you by your shipment company for processing goods import on your behalf (though it may be duty free). The broker fee can be as much as $30. Check your shipment options, USPS (not UPS) is said to be the best in terms of broker fee. But you may not be able to track the shipment.