Canadian import duty is calculated from a product's customs classification, tariff treatment and value for duty—not from a generic rate associated with a supplier country. Importers need a dated, traceable estimate that also considers surtaxes, trade remedies, taxes and transport charges.
Classification drives the starting rate
Canada’s tariff schedule organizes goods using tariff classification numbers. The classification is based on the actual characteristics and use of the product under the relevant rules. A broad description such as “parts” or “accessories” is rarely enough to calculate a reliable duty estimate.
Origin can change tariff treatment
The country of origin and an applicable free trade agreement may affect the tariff rate. Preferential treatment requires meeting origin rules and retaining the necessary evidence. The country where cargo is loaded or the seller’s mailing address may not be the same as its legal country of origin.
Other measures can apply
In addition to ordinary customs duty, some products may attract surtaxes, anti-dumping or countervailing duties, excise amounts or other charges. Check the current measures against the exact goods and origin. A duty calculator based only on a general HS heading can miss important additional costs.
Build an actual landed-cost estimate
Combine purchase cost, international freight, insurance where applicable, customs duty, taxes, broker or terminal fees and inland transportation. Be clear about which taxes may be recoverable by your business and which are true costs. Compare the estimate with the final customs accounting and revise future purchase pricing.
Record the duty calculation assumptions
Identify the Canadian ten-digit tariff number, real country of origin, available preference, value for duty and any additional measures. Then separately budget freight, insurance where purchased, terminal fees and destination trucking. Keep potentially recoverable GST/HST separate from non-recoverable costs when the business's tax treatment supports doing so.
A buyer comparing equipment from two countries should not decide from supplier prices alone. A lower invoice can be offset by different duty and logistics charges. Reconcile the customs accounting declaration against the estimate after release; if the same product is imported repeatedly, consider whether a CBSA advance ruling is appropriate.
Practical checklist
- Identify detailed product classification.
- Verify origin and preferential eligibility.
- Check current trade remedies and surtaxes.
- Calculate freight, duty, tax and destination fees together.
An example in practice
A purchaser compares two overseas suppliers. The lower-priced product has a different origin and applicable import charge, so the final landed cost—not invoice price—determines the better commercial option.
Frequently asked questions
Are import duty and GST/HST the same?
No. Customs duty and applicable sales taxes are separate calculations.
Can I use one HS code for a whole supplier catalogue?
Only if classification rules support it; assess distinct products individually.
Can a six-digit HS code determine the exact Canadian duty?
Not always. Canadian imports use a ten-digit tariff classification and the applicable treatment and trade measures must be checked.
Discuss your shipment with K Line Logistics Canada
If you are planning a commercial import, provide the origin, commodity, packed dimensions, destination, required date and any special handling needs. K Line Logistics Canada can discuss freight options and the supporting shipment information.
Contact K Line Logistics Canada