HS codes and the tariff desk
An HS code is how a good is named on an entry. It is not a rate, and it is not something Mirabilys assigns. You type the rate on the calculator. A broker or the importer of record classifies the goods.
Working register. Rates on the desk were last checked on 26 August 2026. They are not yet signed off against the governing proclamation or CBP entry practice. Do not treat a rate here as advice to classify, enter, or protest.
What is an HS code?
An HS code, or Harmonized System code, is the international name of a good for customs. The United States uses the HTSUS, which starts from that system and adds its own digits. The code is how CBP, a broker, and a statistical agency agree they are talking about the same article.
Searchers type “HS code” when they want the duty. The code is the name. The duty is a function of that name, the origin, and the authority on the entry. Those are three different facts.
Who classifies the goods?
The importer of record is responsible for the classification on the US entry. A licensed broker often proposes the code. CBP can disagree later. Mirabilys does not classify goods, does not look up a code for you, and does not publish a schedule that pretends to do either.
That is why the calculator asks you to type the rate. A wrong official rate on a published tool is worse than an empty box. Classification is a legal act on an entry. We are operators, not a customs broker.
Why a wrong code is worse than a wrong surcharge
A wrong surcharge is a pricing error you can reverse on the next invoice. A wrong HS code is a statement on an entry. It can mean you paid the wrong authority, you cannot protest cleanly, and a refund file starts on a false name.
This is also why we will not ship an HS lookup. If the desk published “pumps are 8413 at 15%,” we would be classifying. We will not.
How this sits next to the register
The register is organized by instrument: 232, IEEPA, and the rest. It is not organized by HS chapter. Once you know which authority your entry sat under, the desk tells you whether a refund is even possible and what moved this week. The code is how you got onto that row. It is not the row. The CUSMA certificate is a different document: it proves origin. It does not name the good, and it does not set the rate you type.
If you do not know your code, ask the broker or pull the 7501. Then come back to the calculator with a rate, not with a guess we invented.
What we will help you do
Size the P&L. Split the catalogue. Name the IOR. Run pass-through. Decide which US lines still earn their slot. That is the exposure analysis. Classification stays with the people who file.
Factual answers
- Can you tell me the HS code for my part?
- No. That is classification. Ask the licensed broker or the importer of record. We will take the rate you already have and show what it does to margin and cash.
- Is an HTS code the same as an HS code?
- HTSUS is the US extension of the Harmonized System. People say HS, HTS, and tariff code for the same job: naming the good on the entry. The extra US digits are what CBP actually uses.
- What if two brokers give two codes?
- Then you do not yet have a file. Do not average the rates. Resolve the name with the IOR before you model a pass-through. Two codes is two different goods as far as the entry is concerned.
- Will you add an HS lookup later?
- Not as a tool that assigns a code. If we ever publish chapter notes, they will stay descriptive and will still tell you to type the rate. The September slot on this ticket was this page: what the code is, and what we will not do with it.
The register, the calculator, the certificate, the industries, and the mandate sit together. The old standalone calculator is not in this set.
Bring the rate. We will not invent the code.
Pull the entry or the broker’s note, type the rate into the calculator, then book the exposure analysis on the lines that actually move cash.