Custom fees between Canada and USA


What is best to do when goods are sold from Canada to USA and from USA to Canada to prevent custom fees. What about NAFTA agreement, rates, etc. Thanks for you advises.
martinpare1
I can only reiterate what Rgd and Turbodieselvw have said: Canada does not charge customs fees or duty in electronics imported from the U.S. (in accordance with NAFTA), but, like every other transaction, you have to pay sales tax. Until last year, you only had to pay GST, but now PST is also charged. I avoid UPS because the brokerage fee is a minimum of CDN$33 and it rises as a percentage of the item's value. Also, I've had several damaged items via UPS but, so far, none via USPS airmail. I have no information on Canada to U.S. shipments
Martinparel, I have purchased power amp, pre-amps, and cables that are made in the US and have never been charged duty. I have also purchased tubes sent via USPS and have not been charged any duty on them (so far). FedEx (air) factors the brokerage fees into their shipping charges, unlike UPS. I have shipped an amp to the US using FedEx and am assuming that there were no additional charges levied as the purchaser didn't mention anything about about that issue to me. I also personally feel that USPS provides much better service than UPS. Dr_joe is correct with regards to NAFTA and customs charges - no charges for US made electronics. However, again, the provincial taxes and GST apply.
I cannot comment on non-NAFTA import fees into Canada, but under the Harmonized Tariff Schedule of the US for 2001, your typical high end stuff is covered under section 8518.40.10 (audio amplification equipment). For Canada, if the equipment entirely originates there (i.e. principally manufactured there), it is duty free under NAFTA. Otherwise the duty rate is typically 4.9% of the declared value. Declaration and payment of duty is done informally for personal items under $2000. Check your local US Customs office for further details.