U.S. Tariffs and Canada: What Small Business Owners Need to Know

Tariffs can turn a profitable sale into a margin problem overnight. For Canadian businesses that buy from, sell to, or compete with U.S. suppliers, the cost is not only the duty itself. It can show up in freight, inventory planning, supplier contracts, customer prices, and cash flow.

As of August 2026, the U.S. applies 50% duties to roughly $20 billion in Canadian goods. Canada’s matching retaliation on about 700 U.S. product categories is scheduled to take effect on 8 September 2026. Rates and product lists can change quickly, so businesses should confirm current rules before making purchasing or pricing decisions.

Tariffs often begin as policy, but their effects quickly reach warehouses, rail yards, and shop floors.

If your business buys from the U.S., sells to the U.S., or relies on products that cross the border, tariffs can affect you faster than you might think.

And no, this isn’t just something for giant manufacturers to worry about.

At QuickOak Bookkeeping, I know how quickly extra costs can throw off your pricing, cash flow, and profit margins. When tariffs are added into the mix, many small business owners are left asking the same question: What does this actually mean for my business?

Let’s break it down in plain English.

What tariffs mean for day-to-day business costs

A tariff is a tax on goods that cross a border. It usually applies when goods are imported and is based on product classification, country of origin, customs value, and any trade measures in force.

For a business, the effect can be broader than a line item on an import declaration. Tariffs may affect:

• Landed cost The full cost to get goods into inventory, including duty, freight, brokerage, insurance, and applicable taxes.

  
  

• Gross margin Higher import costs reduce the gap between selling price and cost of goods sold.

  
  

• Pricing A business may need to raise prices, absorb some costs, or redesign products to protect sales volume.

  
  

• Supplier decisions Goods that were affordable from one country may become too expensive compared with domestic or alternative sources.

  
  

• Cash flow Duties are often due before inventory is sold, which can create a short-term cash crunch.

  
  

The first step in managing tariff costs for Canadian businesses is to know which products are exposed and how much each one truly costs after duties and related charges.

Who pays tariffs on imports

In most cases, the importer of record pays the tariff. That may be the Canadian business buying goods from outside Canada, but it depends on the contract, shipping terms, and customs paperwork.

Do not assume the supplier pays because they arranged the shipment. Check:

Item to review	Why it matters
Importer of record	Identifies who is legally responsible for customs declarations and duties
Incoterms or shipping terms	Shows where cost and risk transfer between buyer and seller
HS classification	Determines the tariff category for the product
Country of origin	Affects whether duties, exemptions, or retaliatory tariffs apply
Customs value	Sets the base amount used to calculate duty

A licensed customs broker can help review classifications, documentation, and duty exposure. This is especially useful for businesses that import mixed shipments, components, or goods with complex origin rules.

Accurate product records make tariff reviews much easier.

Industries facing the most pressure

Tariffs do not affect every sector equally. The hardest-hit Canadian industries tend to be those with cross-border supply chains, heavy materials, or frequent component shipments.

Sectors under the most pressure include:

• Steel and aluminum Higher duties can raise input costs for fabricators, builders, parts makers, and equipment suppliers.

  
  

• Automotive Cross-border movement of parts can make cost calculations difficult, especially when components cross the border more than once.

  
  

• Food and beverage Packaging, ingredients, machinery, and finished products may all have tariff exposure.

  
  

• Electronics Components, circuit boards, equipment, and accessories can involve several countries of origin.

  
  

• Retail and consumer goods Even when a retailer does not import directly, supplier price increases may flow through to wholesale costs.

  
  

For businesses in these sectors, small percentage changes can matter. A 5% cost change may be manageable. A 50% duty on a key input may require a new supplier, a new price, or a different product mix.

Where to check current tariff rates and relief options

Tariff rules change often. Before placing large orders, review current information from reliable sources.

Start with:

• The Canada Border Services Agency for import rules, tariff classification, and customs notices

• The Department of Finance Canada for countermeasures and remission information

• Global Affairs Canada for trade policy updates

• A licensed customs broker for product-specific classification and documentation

• Your accountant or bookkeeper for cash flow and margin planning

  
  

Businesses may also qualify for relief programs, remissions, drawback claims, or duty deferrals in certain cases. Eligibility depends on the product, timing, use of goods, and documentation. Keep purchase orders, invoices, bills of lading, certificates of origin, and customs entries organized.

Manufacturers may need to review parts, inputs, and sourcing one item at a time.

Nine practical ways to prepare for tariffs

1. Map your tariff exposure

List imported products, inputs, suppliers, origin countries, HS codes, customs values, and annual purchase volume. Rank items by total risk, not just duty rate.

2. Calculate true landed cost

Include duty, brokerage, freight, exchange rates, insurance, storage, and financing costs. This gives a clearer picture than supplier price alone.

3. Review supplier options

Compare domestic suppliers, non-U.S. sources, and alternate materials. A higher unit price may still be cheaper if it avoids heavy duties or reduces delays.

4. Recheck product classification

Incorrect HS codes can lead to overpayment, penalties, or shipment delays. Classification reviews are worth the effort when duties are high.

5. Build pricing scenarios

Model what happens if you absorb the cost, pass it on fully, or share it with customers. Use real margin targets rather than guesswork.

6. Talk to customers early

If prices must change, explain the reason clearly. Short notice can damage trust. A phased increase may be easier for customers to accept.

7. Protect cash flow

Tariffs can pull cash out of the business before sales come in. Update cash flow forecasts, review payment terms, and avoid overstocking slow-moving inventory.

8. Keep better records

Good documentation supports claims, audits, relief applications, and supplier negotiations. Store customs documents where finance and operations teams can access them.

9. Review contracts

Check whether contracts allow price adjustments when duties change. For new agreements, include language that addresses tariff changes, delivery delays, and cost sharing.

10. Apply for tariff relief

Use Canada's remission process to request relief from tariffs where no domestic alternative supplier exists. On top of the small business loans available in Ontario, eligible companies hit by tariffs can access loans through the Protect Ontario Financing Program, which offers up to $1B to support the steel, aluminum, and auto sectors.

Staying resilient when costs keep changing

Tariffs are hard to control, but the response can be managed. The businesses that cope best tend to review costs often, keep inventory data current, and make pricing decisions based on numbers rather than pressure.

Accounting software such as QuickBooks can help track expenses, monitor margins, review cash flow, and compare supplier costs over time. That visibility matters when tariff changes force quick decisions.

Retailers and food sellers may need to adjust prices as supplier costs change.

The best next step is simple: identify your top imported goods, confirm their current tariff treatment, and update your landed cost calculations. From there, you can decide whether to adjust prices, change suppliers, apply for relief, or revise cash flow plans.

Disclaimer

This article is for general informational purposes only and reflects publicly available information as of September 2, 2026. Because Canada–U.S. tariff rules and related government programs can change quickly, always verify current details with official government sources, the CBSA, a licensed customs broker, or the appropriate agency before making decisions.

Examples and dollar amounts are illustrative only and may not reflect your business’s actual situation. This content does not constitute legal, tax, accounting, customs, or trade advice. Third-party links are provided for convenience only, and QuickOak Bookkeeping is not responsible for their content or accuracy.