US sellers carry a mental model built at home: small parcel, no duty, no tax, no paperwork worth the name. Canada never ran that model. Goods imported by mail or courier are assessed on their value for duty, converted to Canadian dollars, and the GST/HST applies from the first dollar in most categories. The Canada Border Services Agency does not need the parcel to be large. It needs it to be commercial and dutiable or taxable, and most consumer goods qualify.
Duties sit on top of the tax where the HTS equivalent Canadian tariff classification carries a rate, and USMCA origin can bring the duty to zero for qualifying goods while leaving GST/HST fully payable. Sellers who hear duty free under USMCA and promise Canadian customers a tax free delivery have confused two different charges and set up the refusal at the door.
Under the courier Low Value Shipment Program, carriers clear low value goods on consolidated entries and collect duties and taxes from the recipient, plus a brokerage or advancement fee that can rival the tax on a small order. The seller's checkout price looks clean. The doorstep price is not, and Canadian shoppers have learned to refuse parcels or abandon sellers who land them with surprise fees.
Delivered duty paid (DDP) flips the model: the seller or its broker settles duties and taxes so the parcel arrives clean. DDP costs the seller margin and a broker relationship, and buys the conversion and repeat rate that doorstep billing burns. For a US brand with steady Canadian volume, that trade usually resolves itself the first time return to sender freight bills arrive for refused parcels.
Registration turns on the seller's role. A non resident importer who acts as importer of record into Canada and sells to Canadian customers may need a GST/HST account and a business number with an import export program account (an RM account) to clear goods and charge tax at the point of sale rather than the border. Marketplaces complicate this: where a platform is the deemed supplier or importer for its sales, the platform's registration may cover the transaction and the seller's may not be needed for those orders.
The decision is volume and channel based, so model it on real numbers: Canadian orders per month, average value, refusal rate under doorstep billing, and the marketplace share of sales. Sellers below the volume where DDP and registration pay for themselves can still fix the worst of it at checkout with an honest delivered price estimate naming taxes as the buyer's cost. Surprise is the conversion killer, not the tax itself.
Value for duty is fixed in Canadian dollars at the applicable Bank of Canada rate, so a US dollar price list produces a moving taxable base. Refunds create the second trap: a returned item does not automatically unwind GST/HST the seller or courier already remitted, and the recovery route differs depending on who was importer of record. Build the refund workflow with the broker before the first return, not during it.
Confirm current rates, program thresholds, and registration duties with a licensed customs broker or Canadian tax advisor before a sourcing or market entry decision. Rates and program rules in this area change by budget and by regulation, and a post like this one is a map of where the questions sit, not the answer for your file.
Not in the US sense. Canada assesses GST/HST on most commercial imports regardless of value, though relief programs exist for specific cases and the courier low value program speeds clearance. Assume the tax applies and price accordingly.
No. USMCA can eliminate customs duty for qualifying origin goods. GST/HST is a separate consumption tax and still applies to the import.
Under doorstep billing the recipient pays the courier, plus fees. Under DDP terms the seller's side settles it. Your checkout terms decide which, so state it plainly before purchase.
It depends on whether you act as importer of record, your volumes, and whether a marketplace is the deemed supplier for your sales. That is a broker or tax advisor question worth asking before volume makes the answer expensive.