Every product you import is assigned a tariff classification code. That code decides the duty rate, whether trade agreement benefits apply, and whether other government rules kick in. Get it right and everything downstream works. Get it wrong and the error repeats on every shipment until someone catches it.
Many importers assume their broker checks this regularly. Many brokers don't.
How classification errors happen
Classification is detailed work. The tariff schedule has thousands of codes, and the right one can depend on what a product is made of, how it's used, or how it's packaged. Errors creep in when:
- A product was classified quickly when it was first imported, and nobody looked again
- The product changed (new material, new version) but the code didn't
- The tariff schedule changed, or a new ruling came out, and existing codes weren't reviewed
- Similar products were lumped under one code for convenience
- The supplier's code was copied from the commercial invoice without checking
Errors cost you both ways
Overpaying. If your product is classified under a code with a higher duty rate than the correct one, you pay too much on every entry. Canada and the US both allow importers to correct entries and claim refunds, but only within set time limits. Money you don't claim in time is gone.
Underpaying. If the code carries a lower rate than the correct one, you owe the difference. In Canada, importers have an obligation to correct declarations once they have reason to believe they're wrong, and penalties can apply under the Administrative Monetary Penalty System. In the US, CBP can assess penalties for classification errors, especially if they look careless. Either way, it's the importer of record who's responsible, not the broker.
That last point surprises many people. Your broker files the entry, but legal responsibility for its accuracy sits with you.
What a classification audit looks like
A good broker doesn't wait for a problem. They periodically:
- Pull a list of every product you import and the code used for each
- Check each code against the current tariff schedule and relevant rulings
- Confirm trade agreement eligibility (CUSMA/USMCA and others) and that origin documentation is on file
- Flag products where a different code might apply, and explain the options
- Correct past entries and file refund claims where the importer overpaid and the deadline hasn't passed
For an importer with a stable product range, this doesn't need to happen every month. But it should happen, and it should be something your broker brings up without being asked.
Questions to ask your broker
- When did you last review the classifications on my products?
- Do you check codes when the tariff schedule changes?
- Have you ever filed a refund claim or correction for me?
- Do I get a list of my products and their codes that I can review?
If the answers are vague, that tells you something. A broker who never reviews classifications isn't necessarily cheaper. They're doing less of the work that protects you.
Waybilled compares broker fees and service. We don't classify goods or give duty advice. If you think your classifications need review, talk to a licensed customs broker or a trade lawyer.