…the six-digit code the factory gave them? It is the cheapest mistake in importing to make and one of the most expensive to unwind, because by the time anyone notices, it has been repeating quietly on every entry for years.
The importer did what everyone does. They asked the factory for the code. The factory replied within the hour with six digits, and the importer forwarded it to their customs broker without a second thought. Who would know the product better than the people making it? The broker filed. The goods cleared. Nothing happened, over and over, for three years.
Then Came the Letter
It arrived as a Request for Information, a form CF-28, asking for product specifications, materials, and photographs on a shipment that had cleared months earlier. The importer sent them. What came back was a Notice of Action, form CF-29: U.S. Customs and Border Protection had looked at the goods and disagreed with the classification. The rate was not what had been paid. It was several points higher.
And it had been higher on every entry.
The Code That Was Never a U.S. Code
Here is what the factory sent, and what it actually was. The Harmonized System is an international standard, and it is harmonized to six digits. Every country that uses it agrees on those six. That is the whole point of it.
The United States does not stop at six. The Harmonized Tariff Schedule of the United States runs to ten digits: the first six are the international code, digits seven and eight are the American subheading, and digits nine and ten are a statistical suffix (we break that structure down in How to Read a 10-Digit HTS Code). The duty rate lives in the American digits — the ones the factory had never seen and had no reason to know.
So the factory had not sent the wrong code. It had sent an incomplete one, and the last four digits were somebody's assumption.
Whose Code Was It, Anyway?
There is a second problem underneath the first, and it is the one that catches people who think they were being careful.
The code a factory hands you is the code on its export declaration. That number does a job in the exporting country: it clears the goods outbound and, in China, it determines the export tax rebate the factory collects. The factory has a real financial interest in which code it uses, and that interest is not yours. Nobody is lying. They are answering a different question.
The Bill
The reclassification did not apply to one shipment. It applied to the entries still open, and the difference had been accruing on all of them. Back duties, plus interest.
Then the second half. Under U.S. customs law an importer owes reasonable care in classifying its own goods, and penalties for getting it wrong scale with how you got it wrong: negligence at one level, gross negligence higher, fraud higher still. The importer's defence was that the factory had given them the code. That is not a defence. It is close to an admission, because the legal question is not whether somebody told you a number — it is what you did to satisfy yourself the number was right.
And there is nobody to pass it to. The customs broker files as your agent, on your instructions. The factory is not the importer of record. You are. That signature is the whole point of the document.
The Moral
Classification is your liability, and it cannot be delegated to the person you are buying from.
Ask the factory what code they use, by all means — it is a useful clue and a fast way to find out whether they have thought about it. Then treat it as a clue and not an answer. A ten-digit classification is a decision you make about your own product, and there are two things that make it defensible. Look at how Customs has already ruled on goods like yours in the Customs Rulings Online Search System at https://rulings.cbp.gov, which is public and free. And where the answer is genuinely close, ask for a binding ruling before you import — you write to Customs, describe the product, and get back an answer you can rely on.
The importers who get hurt are almost never the ones who asked a hard question and got it wrong. They are the ones who never asked, because six digits arrived in an email and looked like an answer.
This is a cautionary tale, not legal or customs advice. Classification, penalties, and the options for correcting a past entry depend on the specific goods and circumstances, and the rules differ by country. Work with a licensed customs broker or qualified trade counsel on your own products.
Which classifications in your catalogue came from the factory rather than from your own determination — and what do you use today to keep track of the code, the reasoning, and the ruling behind each product you import?