How CBSA duty and GST/HST set the landed cost of a kit for Canadians

What to take away

How CBSA assesses duty on a miniature kit shipped from the United States

The Canada Border Services Agency assesses duty on the value of the goods, not on what you paid for shipping. If a US supplier sells you a book nook kit for US$120 and charges US$20 to mail it, CBSA looks at the US$120.

That value is converted to Canadian dollars at the exchange rate CBSA publishes for the date of accounting. The rate moves, so the same order can land differently in March and in September.

Duty itself depends on the tariff classification. A kit containing printed instructions, laser-cut wood, fabric and small metal parts is classified as a toy or model kit, not as lumber or hardware. That distinction matters more than most buyers expect.

Under CUSMA, goods that originate in the United States generally enter Canada duty-free when the importer claims the preferential tariff treatment. You do not file a claim as an individual buyer. The carrier or the supplier's paperwork does it, or nobody does.

If the origin is not documented, CBSA applies the most-favoured-nation rate for that tariff item. On many hobby goods that rate is already low or zero. On some tools and electrical components it is not.

This is why two orders of similar size can produce different duty lines. One kit is a model kit from Ohio. The other is a set of precision tools from the same state, classified as hand tools, with a different rate.

You can find the federal statutes behind duty and tax assessment on the Justice Laws Website. The Customs Tariff and the Excise Tax Act are the two that matter most for a parcel at the door.

Duty is not the same as tax. Duty is a tariff on imported goods. Tax is a consumption charge. They are calculated in sequence, and the order changes the total.

De minimis relief does not exist in Canada the way it does in the United States. There is no blanket exemption for small parcels. A low-value shipment can still attract tax and a handling fee.

A $20 kit from a US supplier can arrive with a $9.95 postal handling charge plus tax on the whole thing. The fee can exceed the duty by a wide margin. That is the part most buyers miss.

For kits bought inside Canada, the US import fees question disappears entirely, which is the whole argument for a domestic supplier when the order is small.

What CBSA looks at, in order

Shipping and insurance are added to the value for tax purposes when they are part of the price paid. That is why a cheap kit with expensive express shipping can produce a larger tax line than expected.

A supplier who under-declares to save you duty is creating a problem for you, not for them. The importer of record is the person receiving the goods.

Where GST/HST enters the landed cost and who collects it at the border

GST or HST applies to the duty-paid value of the shipment, plus the cost of shipping and insurance. The Canada Revenue Agency sets the rules that make this a taxable supply. The general framework sits on Taxes - Canada.ca.

The rate depends on the province of delivery, not the province of the seller. An Ontario delivery carries 13 per cent HST. A British Columbia delivery carries 5 per cent GST plus provincial sales tax treatment that differs by situation.

Alberta has no provincial sales tax, so a parcel delivered to Calgary carries GST only. That single fact changes the landed cost of identical orders shipped to different provinces.

CBSA collects the tax at the border on behalf of the CRA. You do not remit it yourself. The carrier pays it to release the goods and then bills you.

That is why the tax appears as a line on a Canada Post card or a courier invoice rather than as a separate government bill. You are reimbursing the carrier.

If you are registered for GST/HST because you sell kits or finished miniatures, the tax you pay on imported business inputs may be recoverable as an input tax credit. Keep the receipt. The carrier's invoice is your documentation.

Hobby buyers who never registered cannot recover it. The tax is simply part of the cost of the kit.

Currency conversion sits underneath all of this. A weaker Canadian dollar raises the converted value, which raises the tax, which raises the handling fee base in some cases. The consumer cost context for cross-border orders is set out on Money and finances - Canada.ca.

For British Columbia buyers, the provincial layer adds another variable. The province's own guidance on Taxes and tax credits - Province of British Columbia explains how provincial tax applies to goods and services, including cross-border purchases.

In practice, most individual buyers importing a single kit pay GST or HST at the border and nothing more on the tax side. The complexity arrives when the order is large, mixed, or bought for resale.

Who collects what

A kit that costs the same in US dollars can land at different totals in Ontario, Alberta and British Columbia. The duty is identical. The tax is not.

Canada Post handling fees and the postal versus courier difference

Canada Post charges a handling fee when it clears a parcel and collects the tax on the government's behalf. It is not a shipping charge. It is a clearance charge.

The fee applies per parcel, not per item. Two kits in one box attract one fee. Two kits in two boxes attract two. Consolidating an order is the simplest way to reduce it.

Canada Post issues a card or notification. You pay the tax plus the handling fee before delivery or at the post office counter. Refusing the parcel does not cancel the obligation in every case, and the goods go back.

Couriers work differently. They act as customs brokers and charge a brokerage fee, which is often higher than the postal handling fee, especially on low-value shipments. In exchange, clearance is usually faster and the tracking is tighter.

Some couriers charge a disbursement fee on top of brokerage, which is a charge for advancing the tax on your behalf. That line surprises people who compared only the headline rate.

For a slow, cheap kit, postal is usually the better route. For a time-sensitive order or one with a supplier who ships express only, courier is the only route, and the brokerage is part of the price.

Both routes produce the same duty and the same GST/HST. Only the clearance charge differs. That is the clean way to compare them.

If you are comparing kit prices between suppliers, remember that the sticker price is not the landed cost. Kits vary in price for reasons that have nothing to do with the border, as covered in kits vary in price.

Postal versus courier, side by side

Worked example: a US$120 book nook kit delivered to Ontario

Take a book nook kit from a US supplier, priced at US$120, shipped by USPS and handed to Canada Post for delivery in Ontario. Shipping is US$25. The exchange rate used for the calculation is 1.36.

Step one: convert the goods value. US$120 at 1.36 is about C$163.20.

Step two: convert the shipping. US$25 at 1.36 is about C$34.00.

Step three: assess duty. The kit qualifies as a model kit of US origin under CUSMA, so the duty rate is zero. Duty owing is C$0.00.

Step four: calculate the tax base. Goods plus shipping is C$197.20. Ontario HST at 13 per cent gives about C$25.64.

Step five: add the Canada Post handling fee. On a taxable parcel of this value, that is a flat charge in the range of C$9.95. The exact figure depends on the current Canada Post schedule.

Step six: total the landed cost. C$163.20 plus C$34.00 plus C$0.00 plus C$25.64 plus C$9.95 comes to roughly C$232.79.

That is the number to compare against a Canadian supplier's price. If a Canadian retailer lists the same kit at C$240 with free shipping, the import is marginally cheaper. At C$210, it is not.

Change one variable and the answer moves. If the supplier ships by courier with a C$19.95 brokerage fee instead of the postal handling charge, the total rises to about C$242.79. The kit did not change. The clearance route did.

If the kit were not of US origin, and duty applied at a typical low rate, the duty would be added before the tax, so the tax would rise slightly too. Duty compounds into tax.

This is the arithmetic behind the break-even math that decides whether a project pays for itself. The landed cost is the true input cost, not the invoice price.

Worked example: a tool order delivered to British Columbia and Alberta

Now take a tool order: a precision knife set, tweezers, a small square and a pin vise, bought from a US supplier for US$85, with US$18 shipping. Two buyers order the same thing on the same day. One is in Vancouver, one is in Edmonton.

Convert the goods: US$85 at 1.36 is about C$115.60. Convert the shipping: US$18 at 1.36 is about C$24.48. The combined value is about C$140.08.

Hand tools of US origin generally enter duty-free under CUSMA when the origin is documented. Assume zero duty for both buyers.

The tax is where they diverge. British Columbia applies 5 per cent GST federally, and the provincial layer is handled through the provincial tax system. Alberta has no provincial sales tax at all.

On the federal GST alone, C$140.08 at 5 per cent is about C$7.00. The Alberta buyer pays that and stops. The BC buyer may face additional provincial treatment depending on how the goods are classified and who the seller is.

Add the Canada Post handling fee of about C$9.95 to each. The Alberta landed cost lands near C$157.03. The BC total is slightly higher once the provincial layer is applied.

Now suppose the tools are not of US origin and a tariff applies. Tariff responses between Canada and the United States shift the cost of tools and kits in ways that are not always visible at checkout, as the province notes in B.C.'s response to unjustified U.S. tariffs - Province of British Columbia.

A duty of 6 per cent on C$140.08 would add about C$8.40, and the tax would then apply to C$148.48 rather than C$140.08. Duty raises the tax base. The two are not independent.

For a maker selling finished pieces, that difference has to be recovered in the price. The book nook kits setup of a kit run depends on getting the input cost right, and the input cost is the landed cost.

The two buyers compared

Building a landed-cost worksheet before you click buy

A worksheet takes ten minutes and saves the surprise. Build it once, then reuse it for every order.

Keep the worksheet as a spreadsheet with one row per order. After three orders you will know your own pattern: which supplier ships postal, which uses courier, and what your average clearance charge looks like.

A few habits reduce the total. Consolidate small orders into one parcel. Ask the supplier to document US origin. Avoid express courier on low-value shipments where the brokerage dominates the bill.

If you sell what you make, track the landed cost per unit, not per order. That is the figure that feeds pricing, and it is the figure that craft show tables and online listings have to support, which is why the pricing approach in Canadian craft shows starts from input cost.

When the math favours a Canadian supplier instead

A Canadian supplier wins when the order is small. On a C$40 kit, the postal handling fee alone can be a quarter of the value. Add tax and the premium for buying domestic shrinks fast.

A Canadian supplier also wins on returns. Distance selling rules under provincial consumer protection acts give you rights, but exercising them across a border is slow and costly. A domestic return is a domestic shipment.

Speed matters too. A kit that arrives in three days from a Canadian warehouse supports a project start this weekend. A parcel that sits in clearance does not.

Canadian suppliers win on parts as well. Missing a single laser-cut sheet from a US kit can mean a second cross-border order and a second handling fee. A domestic supplier can often replace it in one envelope.

Importing still wins on selection. Some kits and tools are simply not stocked in Canada, and no worksheet changes that. The point is to know which purchases are worth the border and which are not.

Run the worksheet first. Buy domestic when the gap is small. Import when the item is unique, the order is consolidated, and the clearance route is postal.

Common questions