What the New Canada Tariff Adds to Your Seed Order

Yes. Canadian-origin seeds for sowing, bulbs, and live plants entered into the United States on or after 12:01 a.m. Eastern time on August 22, 2026, are listed among the goods subject to an additional 50% duty. On a $40 seed order, that duty is $20, bringing the cost to $60 before shipping, any ordinary duty, taxes, brokerage, processing charges, or agricultural-entry expenses.

Enter the customs value and delivery costs to calculate the added duty and compare it with a U.S. supplier.

The 50% rate applies to covered Canadian goods under the listed seed, bulb, and plant classifications. The relevant categories in Annex II include seeds for sowing under heading 1209.x, bulbs under heading 0601, and live plants under heading 0602.

The additional duty is cumulative with otherwise applicable duties. It does not replace the product’s ordinary tariff treatment, and it does not include carrier or agricultural-compliance costs.

A $40 Canadian Seed Order Incurs $20 in Additional Duty

The Section 338 calculation is straightforward when the merchandise is covered and Canadian-origin: multiply its customs value by 50%.

For a $40 order, the calculation is $40 × 0.50 = $20. The resulting $60 consists of the $40 merchandise value and the $20 additional duty.

That $60 is not necessarily the final delivered price. The shipment may also have:

• its ordinary HTSUS duty, if any;
• international shipping;
• brokerage or carrier handling charges;
• customs processing charges or taxes; and
• costs associated with permits, certificates, inspections, or other agricultural requirements.

The evidence supplied for this guide does not provide an ordinary duty rate for a particular seed species. It also does not establish what a postal service or courier will charge. Those amounts should remain unknown until the classification and shipping terms are confirmed.

When using the calculator, enter the customs value if the seller or carrier provides it. The merchandise subtotal is a practical estimate when no separate customs value is available, but customs authorities determine the value used at entry.

The Entry Date, Not the Order Date, Controls

The additional duties were initially scheduled to begin on August 19, 2026. Proclamations 11046–11048 were suspended for three days, and the measure became operative at 12:01 a.m. Eastern time on August 22, according to the Federal Register notice covering the temporary suspension.

The timing rule concerns goods entered for consumption or withdrawn from warehouse for consumption. It is not based solely on when you placed the order, when the merchant printed the label, or when the parcel left Canada.

A gardener who ordered before August 22 can therefore still face the duty if the covered goods were entered on or after the effective time. Conversely, an order date after August 22 does not determine the treatment of goods that had already been entered.

Save the order confirmation, tracking history, customs documents, and carrier notices. Those records can help establish the entry timeline if the assessment is disputed.

Shipping From Canada Does Not Prove Canadian Origin

The measure applies to covered products of Canada, not to every parcel bearing Canadian postage. Three locations can differ:

1. The country where the seller operates.
2. The country from which the parcel is mailed.
3. The country of origin attributed to the merchandise.

A Canadian seed house may sell seed grown in Canada, seed imported in bulk from another country, or a mixture sourced from several countries. Dividing imported seed into packets and mailing it from Ontario does not by itself establish Canadian origin.

Likewise, a .ca domain, Canadian currency, a maple-leaf logo, or a Canadian return address answers where the merchant is located or where the parcel was handled. None conclusively answers where the seed was produced.

Ask the seller where each seed lot was grown or produced. Useful records can include the product listing, packet label, invoice, packing slip, lot information, sourcing notes, and a specific written response from the merchant.

If the seller cannot identify the origin, the correct tariff result cannot be established from the mailing address alone. Use “origin unknown” in the calculator rather than assuming either a 50% or zero result.

Seeds, Bulbs, and Live Plants Are All Listed

Annex II covers the three product groups most likely to concern gardeners ordering living propagation material from Canada.

Product	Listed Heading	Added Rate
Seeds for sowing	1209.x	50%
Bulbs	0601	50%
Live plants	0602	50%

The broad retail word “seed” is not enough to classify a product. Species, viability, processing, and intended use can affect where merchandise belongs in the U.S. Harmonized Tariff Schedule.

Seed imported for sowing may be classified differently from similar material intended for eating, animal feed, spice use, crushing, or oil production. A viable sunflower seed packet sold for planting should not automatically be assigned the classification used for processed sunflower seed sold as food.

For a useful classification inquiry, record:

• the botanical species and commercial name;
• whether the seed is viable and intended for planting;
• whether it is whole, hulled, roasted, coated, treated, or mixed;
• the country where it was grown or produced; and
• the complete U.S. HTSUS classification, not merely a six-digit international HS category.

The annex establishes that listed classifications face the additional rate. It does not classify an item described only as “garden seeds.” U.S. customs authorities make the final classification and tariff determination.

The 50% Duty Sits on Top of Ordinary Tariff Treatment

A covered order can have more than one tariff layer. The first is the ordinary treatment attached to the product’s complete HTSUS classification. That rate may be zero or greater than zero, depending on the merchandise and any valid preference.

The second layer is the additional 50% Canada duty. Annex II states that this duty is cumulative with otherwise applicable duties. If a seed has an ordinary duty, the new charge does not simply replace it with 50%.

This measure is product-specific rather than a universal tariff on everything sold by a Canadian merchant. The proclamation establishing the Canada-specific duties describes the action as a response to Canadian restrictions involving U.S. alcoholic beverages, while its annex enumerates the products covered.

For a complete estimate, determine:

1. The full HTSUS classification.
2. The legally relevant country of origin.
3. The customs value.
4. The entry date and time.
5. The ordinary tariff treatment.
6. Whether the classification appears in the additional-duty annex.
7. The carrier’s non-duty charges.

The calculator handles the sixth item and combines it with costs you enter. It cannot supply an unknown ordinary rate, origin determination, or carrier fee.

USMCA Does Not Automatically Remove the Additional Duty

USMCA, called CUSMA in Canada, can affect the ordinary tariff treatment of qualifying goods. Eligibility depends on the applicable rules of origin and adequate support for the claim, not simply on buying from a Canadian business.

Seed grown in Canada may have a stronger basis for a Canadian-origin claim than seed grown elsewhere and merely packaged there. Seed grown in a third country does not automatically become USMCA-originating because a Canadian retailer divides it into smaller packets.

Even when goods qualify for USMCA treatment, the ordinary tariff and the additional Section 338 duty must be checked separately. The annex states that its additional duty is cumulative, and the supplied evidence does not establish a general USMCA exclusion for the listed seed, bulb, or live-plant headings.

Ask the seller whether it can provide the production facts and records needed by the person making the customs entry. A broad statement such as “Canadian company” or “packed in Canada” is not a substitute for the underlying origin information.

Small Seed Packets Are Not Excluded by the Order Size

The listed additional duty is calculated as a percentage, so a lower merchandise value produces a smaller dollar charge. A small packet is not removed from the annex merely because the order is inexpensive.

At the same time, price and packet size do not determine classification or origin. A $40 order of covered Canadian-origin sowing seed entered after the effective time has a $20 additional duty. A parcel mailed by the same retailer containing third-country seed may require a different country-specific analysis.

Do not treat “no additional Canada duty” as equivalent to “no import cost.” A parcel can avoid this particular 50% assessment yet still have an ordinary duty, another applicable tariff, or carrier charges. U.S. government tariff guidance notes that customs fees and taxes may be charged in addition to tariffs.

Agricultural Entry Rules Remain Separate

Paying the tariff does not establish that a seed, bulb, or plant is admissible. Plant-health restrictions can depend on the species, country of production, quantity, treatment, intended use, and physical condition of the goods.

The supplied evidence does not establish whether a particular packet needs a permit, phytosanitary certificate, treatment, inspection, or special label. Obtain current product-specific agricultural guidance before shipment rather than relying on the tariff result.

Treat the purchase as two parallel reviews:

• The customs review covers classification, origin, value, entry date, ordinary treatment, and additional duties.
• The agricultural review covers whether the material may enter and what documentation or treatment it requires.

Success in one review does not decide the other. A duty-paid plant can still be inadmissible, while admissible seed can still owe a tariff.

Compare the Canadian Landed Cost With a U.S. Supplier

The useful comparison is not the two catalog prices. Compare the delivered totals.

For the Canadian order, add the merchandise value, 50% additional duty, shipping, known ordinary duty, and carrier or import charges. For the domestic order, add the U.S. merchandise price and shipping.

A U.S. supplier is cheaper when its delivered total is below the Canadian landed total. The calculator also shows the break-even U.S. merchandise price after accounting for domestic shipping.

For example, the known pre-shipping cost of a covered $40 Canadian order is $60. If Canadian shipping, ordinary duty, or handling charges apply, the domestic break-even price rises by those amounts. The exact break-even point cannot be stated without those costs, so the calculator leaves unspecified charges out until you enter them.

This comparison is especially useful for inexpensive orders because a flat carrier or brokerage charge can affect the result more than the packet price. Obtain the shipping method and fee policy from the seller before relying on the displayed total.

Check These Facts Before the Seller Ships

Start with the exact product description and confirm whether the seeds are for planting. Record the species, processing, treatment, origin, and expected entry date.

Then identify the complete U.S. classification and check its ordinary rate. Compare that classification with the current Canadian-products annex rather than assuming that every garden product is covered in the same way.

Ask who will make the customs entry, who will advance any duty, and what brokerage, disbursement, handling, or processing charges the carrier may collect. Save the product page, invoice, origin statement, seller correspondence, and tariff provisions used for the estimate.

For an uncertain, expensive, or repeated shipment, contact U.S. Customs and Border Protection, consult a qualified customs broker, or consider seeking a binding customs ruling. Provide the species, intended use, processing, origin facts, value, and proposed transaction rather than asking about “seeds from Canada” in general.

Frequently Asked Questions

Does the Tariff Apply to Flower and Vegetable Seeds?

Yes, when the seeds are Canadian-origin, fall within the listed sowing-seed classifications under heading 1209.x, and are entered on or after the effective time. The exact HTSUS classification still has to be determined from the species, condition, and intended use.

Are Bulbs and Live Plants Also Subject to 50%?

Yes. Annex II lists bulbs under heading 0601 and live plants under heading 0602 among the covered Canadian goods. Agricultural admissibility requirements must still be checked separately.

Does Ordering Before August 22 Avoid the Duty?

Not necessarily. The measure is tied to entry for consumption or withdrawal from warehouse for consumption, not merely to the checkout or mailing date.

Does Canadian Postage Prove the Duty Applies?

No. Canadian postage establishes the shipping location, not necessarily the merchandise’s country of origin. Ask where the seed, bulb, or plant was produced.

What Does the Tariff Add to a $40 Seed Order?

The additional 50% duty is $20. The merchandise plus that duty is $60 before shipping, ordinary duty, taxes, carrier charges, and agricultural-entry costs.