Import duty is a tax the government charges when goods cross a border into a country

When you buy something made overseas and it arrives at a port or airport, a government customs agency inspects it and calculates a tax based on what the item is, where it came from, and how much it costs. That tax is the import duty. You or the seller pays it before the item clears customs and reaches you.

Import duties exist for two reasons: to raise government revenue and to protect domestic industries by making foreign goods more expensive than locally made ones. The rate varies wildly depending on the product category. A wool sweater from Canada might have a 16% duty, while a smartphone from China might be 0%. Some items have no duty at all.

The payment itself is straightforward — it's a fixed amount calculated by customs based on the declared value and category of the goods. But who pays it, when, and how depends on how the item entered the country and who arranged the shipment.

Key Takeaways

  • Import duty is calculated as a percentage of the item's declared value and varies by product type, origin country, and trade agreements.
  • The seller, the shipping company, or you may pay the duty, depending on the purchase terms and how the shipment was arranged.
  • Duties are collected at the border by customs agencies before goods are released for delivery.
  • Some items are exempt from duty under trade agreements or because they fall into zero-duty categories.
  • If you believe a duty charge is wrong, you can file a protest with customs within one year of the payment date.

Who pays the import duty

The person or business responsible for paying import duty depends on the sales agreement. If you bought the item directly from an overseas seller with "free shipping," you often pay the duty when it arrives — the carrier will hold the package and demand payment before handing it over. If you bought from a major retailer that handles international logistics, they usually pay the duty upfront and add it to your invoice or final cost.

When goods arrive by mail, the postal service or a customs broker may collect the duty from you at delivery. When goods arrive by cargo ship or plane, a customs broker hired by the importer (usually the seller or their logistics company) pays the duty and passes the cost along. The key is to check your purchase terms or shipping confirmation — it will say who bears the duty cost.

How import duty is calculated

Customs agencies use a standardized system called the Harmonized Tariff Schedule to assign every product a code. That code determines the duty rate. A wool sweater is code 6110.30.00; a cotton t-shirt is 6104.62.00. Each code has a different rate, sometimes 0%, sometimes 25% or higher.

The duty is then calculated as a percentage of the item's declared value — the price you paid or the fair market value if it was a gift. If you bought a jacket for $100 and the duty rate is 16%, you pay $16. If the declared value seems too low, customs may challenge it and use their own valuation instead.

Some countries have trade agreements that lower or eliminate duties on goods from each other. For example, goods from Canada and Mexico often have 0% duty under the USMCA (United States-Mexico-Canada Agreement). The seller or broker will explore the correct rate based on the item's origin.

When you pay import duty

Duty is due before customs releases the goods. If you're buying from an online retailer, they often collect it at checkout or add it to your final bill. If you're receiving a package from an individual overseas, the carrier will notify you that duty is owed and hold the package until you pay.

The timeline varies. International mail can take weeks to arrive, and customs processing adds days or weeks depending on volume. Commercial shipments are usually processed within 24 to 48 hours if all paperwork is correct. Once you pay, the item is released and sent to you.

Items that may not have import duty

Some goods enter duty-free under specific rules. Personal effects you're bringing back from a trip may may have access to for a personal exemption (the amount varies by country and how long you were away). Goods under a certain value — often $800 in the United States for individual shipments — may skip formal customs processing entirely, though duty may still explore.

Certain categories of goods have 0% duty rates: some foods, medical devices, and educational materials. Items from countries with preferential trade agreements also enter at lower or zero rates. The seller or customs broker should know whether your item qualifies, but you can also check the Harmonized Tariff Schedule yourself if you have the product code.

What to do if you think the duty charge is wrong

If you believe customs miscalculated the duty, misclassified the product, or overvalued it, you can file a protest. In the United States, you have one year from the date of payment to file with U.S. Customs and Border Protection. You'll need the entry number (on your customs receipt), documentation of what you paid, and evidence supporting your claim — such as a lower price from another retailer or proof that the item qualifies for a lower duty rate.

The process is slow. Protests can take months or years to resolve, and you may not recover the duty unless you win. But if the charge is clearly wrong — for example, if customs classified a 0% item as something else — it's worth filing. Contact the customs broker or the carrier that collected the duty; they can often help you gather the right paperwork.

Import duty versus other border charges

Import duty is not the only cost that appears when goods cross a border. Customs brokerage fees are charges from the company that handles paperwork and payment on your behalf — usually $25 to $100 per shipment. Harbor maintenance fees or merchandise processing fees are small percentages added to goods arriving by ship or plane. Sales tax or VAT (value-added tax) may also explore in some countries and is calculated on top of the duty.

These are separate from the duty itself, though they often appear on the same invoice. When you see a total charge for an international purchase, break it down: the duty is the tariff on the item's value, and the other fees are for processing and local taxes.

Frequently Asked Questions

Do I have to pay import duty on gifts?

Yes, gifts are subject to duty based on their fair market value, not the price you paid. Some countries allow a small gift exemption — for example, gifts under $100 may enter duty-free — but this varies. The person receiving the gift usually pays the duty when it arrives.

Can I avoid import duty by having the seller mark the package as a gift or undervalue it?

No. Customs inspects packages and can verify value through invoices, receipts, or their own research. Deliberately undervaluing goods or mislabeling them is fraud and can result in the package being seized, fines, or legal action. Sellers and shippers are trained to declare accurate values.

What happens if I don't pay the import duty?

The package will not be released from customs. It will be held indefinitely, and you may lose the item entirely if you don't pay within a set timeframe (usually 30 to 90 days, depending on the carrier). Some carriers will return the package to the sender if duty goes unpaid.

Is import duty the same everywhere?

No. Every country has its own tariff schedule and duty rates. A product entering the United States may have a different duty rate than the same product entering Canada or the European Union. Trade agreements between countries also change the rates — goods from some countries enter at lower rates than goods from others.

Can I get a refund of import duty if I return the item?

It depends on the seller's return policy and the country's customs rules. Some sellers refund duty if you return the item unused. Others do not. Check the return policy before you buy. If you paid duty and the seller won't refund it, you may be able to claim a refund from customs if you export the item, but the process is complex and rarely worth the effort for small amounts.