Compliance Guide合规指南

HS Codes in Canada: How Classification Really Works加拿大HS编码：分类的真正逻辑

Last reviewed: June 2026 · 6 minute read最后审核：2026年6月 · 约6分钟阅读

Every product that enters Canada is declared under a 10-digit tariff classification number. That one number decides your duty rate, whether anti-dumping measures apply, whether another agency needs to approve your goods, and what the trade statistics say you imported. It is the single highest-leverage data point on your customs entry.每件进入加拿大的商品都按一个10位关税分类编号申报。这一个号码决定您的关税税率、是否适用反倾销措施、是否需要其他机构批准，以及贸易统计如何记录您的进口。它是报关单上杠杆最大的单一数据点。

Anatomy of a Canadian tariff number加拿大关税编号的结构

Digits位数	Level层级	Set by制定方
1–2	Chapter (e.g. 73 = articles of iron or steel)章（如73 = 钢铁制品）	World Customs Organization世界海关组织
3–4	Heading — product family品目——产品类别	WCO (international)WCO（国际）
5–6	Subheading — the worldwide common core子目——全球通用部分	WCO (international)WCO（国际）
7–8	Tariff item — where Canada sets the duty rate税则号——加拿大设定税率之处	Canada加拿大
9–10	Statistical suffix统计后缀	Canada加拿大

This is why your Chinese supplier's HS code is only a starting point: the first six digits usually carry over, but the last four digits are Canadian — and that's where the duty rate lives.这就是为什么中国供应商的HS编码只是起点：前六位通常通用，但后四位是加拿大特有的——而税率正是由后四位决定。

What the number controls这个号码控制什么

Duty rate — MFN rate by default; preferential rates (CUSMA, CPTPP…) if your goods qualify and you have proof of origin关税税率——默认最惠国税率；符合条件且有原产地证明时适用优惠税率（CUSMA、CPTPP等）
SIMA exposure — anti-dumping and countervailing measures are defined by classification + origin; steel is the densest territorySIMA风险——反倾销和反补贴措施由分类+原产地界定；钢材是最密集的领域
Surtaxes — e.g. the current measures on certain Chinese-origin goods key off classification附加税——例如现行对部分中国产商品的措施以分类为依据
Other government departments — food, plants, health products and more trigger permit requirements by code其他政府部门——食品、植物、健康产品等按编码触发许可要求

How classification decisions are actually made分类决定究竟如何做出

Classification follows the tariff's legal interpretation rules — headings and legal notes first, not marketing names or keyword searches. "Smart watch" isn't a classification; the legal questions are what it's made of, what it does, and which function is principal. For borderline products, CBSA offers binding advance rulings — worth it for high-volume SKUs because they remove reassessment risk.分类遵循税则的法定归类规则——先看品目和法定注释，而不是营销名称或关键词搜索。"智能手表"不是分类；法律问题是它由什么构成、有什么功能、哪个功能为主。对边界模糊的产品，CBSA提供有约束力的预裁定——对大批量SKU值得申请，因为它消除追溯重估风险。

The classic mistakes经典错误

Copying the supplier's full 10-digit export code into the Canadian entry把供应商的10位出口编码原样抄进加拿大报关单
Classifying to the lowest duty rate and working backwards to justify it先挑最低税率再倒推理由
Declaring "parts" when the tariff treats the item as a finished article (or vice versa)税则视为成品时却申报"零件"（或相反）
Never revisiting codes after a product or tariff change — reassessments reach back years产品或税则变化后从不复核编码——追溯重估可回溯数年

Useful official tools: the CBSA's Customs Tariff schedule and the free Canada Tariff Finder for FTA rates. And classification review is built into our 8-step compliance process — every line item, every entry.实用官方工具：CBSA关税税则表和免费的加拿大关税查询器（自贸协定税率）。分类审核内置于我们的8步合规流程——每个税项、每票申报。

Educational overview only — the tariff changes throughout the year. Classification of your specific goods requires reviewing the actual product; ask our team.仅供学习参考——税则全年都在变化。具体商品的分类需要审查实际产品；请咨询我们的团队。

FAQ常见问题

Frequently asked questions常见问题

Can I use my Chinese supplier's HS code on my Canadian customs entry?我可以把中国供应商提供的HS编码直接用在加拿大报关单上吗？▼

Only as a starting point. The first six digits are internationally harmonized and usually carry over, but Canada sets digits seven through ten — and that's where the duty rate and statistical detail live. Suppliers also classify for Chinese export purposes, which optimizes for their rules, not yours. Every code needs a check against the Canadian Customs Tariff before it goes on an entry.只能作为起点。前六位是国际统一的，通常可以沿用，但第七至第十位由加拿大自行设定——而税率和统计细目恰恰就在这几位上。何况供应商是为中国出口的目的归类的，优化的是他们那边的规则，不是您的。每一个编码在填入报关单之前，都需要对照加拿大海关税则核实一遍。

What happens if I use the wrong HS code in Canada?在加拿大用错HS编码会有什么后果？▼

CBSA can reassess, and reassessments reach back years — you'd owe the duty difference plus interest, and AMPS penalties are possible where compliance obligations weren't met. Importers also have a legal obligation under the Customs Act to correct declarations once they have reason to believe an entry was wrong, so "we didn't know" has a shelf life. If a code has been wrong across many shipments, get advice on correcting proactively rather than waiting for a verification letter.CBSA可以重新核定，而且追溯可达数年——您需要补缴税差加利息，在未履行合规义务的情况下还可能被处以AMPS罚款。此外，根据《海关法》，进口商一旦有理由认为申报有误，就负有更正申报的法律义务，所以"我们不知道"这个理由是有保质期的。如果某个编码在多票货物中一直用错，建议就主动更正寻求专业意见，而不是等验证函上门。

Who is legally responsible if my broker classifies my goods incorrectly?如果报关行给我的货物归类错了，法律责任由谁承担？▼

The importer. A broker files as your agent, but the declarations are made in your name and CBSA's reassessments and penalties land on the importer of record. That's why classification is worth your attention even with a good broker — provide complete product information (materials, function, composition) rather than just a product name, because the broker can only classify what they can see.由进口商承担。报关行以您的代理人身份申报，但申报是以您的名义作出的，CBSA的重新核定和处罚都落在登记进口商头上。这也是为什么即便有一家靠谱的报关行，归类也值得您亲自上心——请提供完整的产品信息（材质、功能、成分），而不是只给一个品名，因为报关行只能根据看得到的信息来归类。

How do I get a binding tariff ruling from CBSA?如何向CBSA申请具有约束力的关税裁定？▼

You apply to CBSA for an advance ruling on a specific product, with full technical details — composition, function, how it's made and used. The ruling binds CBSA to that classification for your goods, which removes reassessment risk on that SKU; the trade-off is preparation effort and CBSA's processing time, which varies. It's typically worth it for high-volume or borderline products, and a broker can prepare the application with you.您需要就特定产品向CBSA申请预裁定，并提交完整的技术资料——成分、功能、制造方式和用途。裁定一经作出，CBSA即受该归类约束，适用于您的该项货物，从而消除这个SKU的重新核定风险；代价是前期准备的投入和CBSA的处理时间，后者长短不一。对大批量或归类模糊的产品，这通常是值得的，报关行可以与您一起准备申请材料。

Are goods from China duty-free in Canada?中国货物进口到加拿大是免税的吗？▼

Some are, some very much aren't. With no Canada–China free trade agreement, MFN rates apply — plenty of tariff items are MFN duty-free, but others carry real rates, and classification-plus-origin can also trigger SIMA anti-dumping duties or surtaxes that dwarf ordinary duty, especially around steel and aluminum. The only reliable answer comes from checking your specific 10-digit code against the current tariff.有些免，有些恰恰相反。由于加中之间没有自由贸易协定，适用最惠国（MFN）税率——不少税目在MFN下确实免税，但另一些要缴实打实的税率，而且归类加原产地的组合还可能触发SIMA反倾销税或附加税，其金额可能远超普通关税，钢铁和铝制品周边尤其如此。唯一可靠的答案，来自用您具体的10位编码去查现行税则。