Free US Import Duty & Tariff Calculator 2026

Is the tariff on your product the number you were quoted, or the number that clears customs?

Most sellers price a product with one tariff figure in mind, usually the headline rate from a news story, and then find the entry summary shows three or four separate duty lines. In October 2026 a single US import can carry its normal MFN duty, a country-level Section 301 forced-labor duty, a product-level Section 301 duty (China, Brazil), a Section 232 sector tariff, and for some Canadian goods a 50% Section 338 duty, before the Merchandise Processing Fee and Harbor Maintenance Fee are added. Missing one layer on a $50,000 container is a four-figure pricing error.

This page does three things: it shows which layers apply to your country of origin and product, it shows the order in which they stack or replace each other, and it gives you a landed-duty figure you can put into a cost of goods sheet before you book freight. It does not replace a customs broker's binding classification, and it says so where that matters.

How a US import duty is built in October 2026

The IEEPA "reciprocal" and fentanyl tariffs were struck down by the Supreme Court on February 20, 2026. The 10% Section 122 surcharge that replaced them expired July 24, 2026. What replaced Section 122 is a Section 301 action covering 60 economies and about 99.4% of US imports. Here is the stack as the calculator applies it.

Section 301 forced-labor tariff: which tier is your country in?

USTR set the tier by each economy's forced-labor import regime, with a lower rate for countries that signed reciprocal trade frameworks. Six countries were moved from 12.5% to 10% in the final notice after taking enforcement steps: India, Jordan, Sri Lanka, Honduras, Cambodia, and Trinidad and Tobago. The calculator carries these tiers; the table below is the reference.

Two exemptions matter for ecommerce sellers. Goods in USTR's Annex A (which carried over the Section 122 exclusion list: agricultural goods, aircraft parts, pharmaceuticals, minerals, certain industrial inputs) pay no forced-labor duty. And a textile tariff-rate quota is being set up that will let a volume of apparel from certain countries enter at a reduced rate; until it is published, apparel pays the full tier.

Worked examples, calculated with the tool above

Each example uses a real HTS rate and the October 2026 layers. Change one input and the total moves, which is the point: run your own SKUs rather than reading the headline rate.

China tariff calculator: two Section 301 layers, one truce clock

Canada to US tariff calculator: USMCA, Section 338 and the import bans

Canadian goods now sit in three groups. Goods that qualify as USMCA-originating and are not on a Section 338 annex enter at 0% base duty with no forced-labor duty; this is still most Canadian trade by value. Goods that do not qualify pay MFN plus the 10% forced-labor tier. Goods on one of the three Section 338 proclamations (about 550 HTS subheadings, roughly $20 billion a year: paper and paperboard, hides and leather, furniture, mattresses and lighting, cheese, golf carts, ATVs and certain vehicles, motorboats, and a range of steel, aluminum and base-metal articles after the September 15 revision) pay an additional 50% whether or not they qualify under USMCA, and that duty stacks on everything except Section 232.

Separately, certain Canadian alcoholic beverages, dairy products and motor-vehicle-related products have been prohibited from entry since September 29, 2026. A banned product cannot be entered at any duty rate. Canada's dollar-for-dollar countermeasures on about $20 billion of US goods (15%, 25% and 50% tiers) took effect September 8, so brands shipping both directions should model both sides. The announced increase of Section 232 tariffs on Canadian autos, parts and steel to 50% on January 1, 2027 is not yet implemented and is not in the calculator.

AMZ Prep moves cross-border freight between its Canadian and US facilities daily; the entry paperwork that decides which of the three groups your goods fall into is the part worth getting right before the truck is booked.

Section 232 tariff calculator: steel, aluminum, copper, autos, semiconductors, wood

Section 232 tariffs attach to products, not countries, and they replace the country-level surcharge rather than adding to it. Since the April 2026 proclamation the metal tariffs apply to the full value of derivative products that contain steel, aluminum or copper, with a de minimis carve-out for goods outside Chapters 72 to 76 where metal is under 15% by weight. A product made of US-melted metal (85% US content or more since June 8) pays 10%; UK-origin steel pays 25%; most everything else pays 50%. Autos and parts pay 25%, with 15% all-in treatment for Japan, Korea and the EU under their frameworks and a 10% quota rate for UK cars. High-performance logic chips pay 25% unless an end-use exemption applies. Softwood lumber pays 10% and upholstered wooden furniture and kitchen cabinets pay 25%, with increases to 30% and 50% deferred to January 1, 2027; EU and Japanese wood products are capped at 15% all-in and UK at 10%.

For ecommerce sellers the trap is derivative goods: a metal shelving unit, a cast-iron pan, a stainless water bottle or a copper-wound motor can land in Section 232 even when the HTS heading reads like a consumer product. Select the sector in the calculator and it will apply the metal rate and drop the forced-labor layer, which is how CBP processes the entry.

Finding your HTS code and MFN rate

The calculator asks for your MFN rate because every layer above sits on it, and for the EU, Taiwan, Japan, Korea and Switzerland the Section 301 duty is literally defined as the gap between the MFN rate and the cap. The authoritative source is the US International Trade Commission's Harmonized Tariff Schedule at hts.usitc.gov: search the product description, read the Column 1 "General" rate, and note any Chapter 99 footnotes, which is where Section 301, 232 and 338 provisions live. CBP's CROSS database shows how similar products have been classified in past rulings. The HTS field on this page checks your code against a sample of the Annex A exemptions only; it is not a full HTS database, and a product that does not match here can still be exempt. For a binding classification request a ruling from CBP or have a licensed broker classify the product, which AMZ Prep's customs partner does as part of freight forwarding.

Who this calculator is for, and when to use something else

This tool fits brands importing finished consumer goods into the United States for sale on Amazon, Walmart, Shopify or their own channels, who need a landed-duty figure per SKU to set prices and compare suppliers in China, Vietnam, India, Mexico and the EU. It covers the layers that drive 90% of the variance for those importers.

Use a different tool when your situation needs more than this models. Flexport's Tariff Simulator looks up the MFN rate by HTS code inline, which this page asks you to enter. Products under antidumping or countervailing orders (many steel, aluminum, solar and furniture lines from China and Vietnam) carry rates of 50% to 300% that no public calculator estimates reliably; get the order's deposit rate from a broker. Goods entering Canada rather than the United States are governed by CBSA's tariff, not this page. And for a shipment already on the water, the broker who files the entry is the only source that counts.