Importing, Tariffs, and Customs Basics for Physical Products
What every founder importing a physical product needs to understand about tariffs, customs, and compliance — as a framework, since specific rates and rules change and must be checked at the time you ship.
Why This Matters Even for a Small First Shipment
Importing a physical product — even a single sample shipment — puts you in contact with customs regulations, duties, and compliance requirements that don't care how small your business is. Getting this wrong can mean a shipment held at the border, unexpected duty bills, or fines. None of it is intuitive if you haven't done it before, which is exactly why it trips up first-time hardware founders.
The Import Process at a High Level
Key Terms
- Classification (HS code)
- Every product gets classified under a Harmonized System code, which determines the duty rate and any special requirements. Getting this right matters — it's what determines what you owe.
- Valuation
- Customs assesses duties based on the declared value of the shipment, which has specific rules for what must be included.
- Duties and tariffs
- Based on the HS classification and country of origin, a duty rate applies. This is the area that changes fastest — see the note below.
- Clearance
- The shipment is inspected (not always physically) and released once duties are paid and paperwork is in order.
Tariffs and Duties: Get Current Numbers, Don't Assume
Tariff rates change — always verify before you ship
Tariff rates depend on the specific product classification, country of origin, and current trade policy — all three of which can and do change, sometimes with little notice. There is no stable number to memorize, and any specific rate would likely be wrong by the time you read it. Work with a licensed customs broker or freight forwarder for anything beyond a token personal-use sample shipment, and always check the current, official tariff schedule for your product's exact classification and country of origin before you rely on a number.
What varies by state
- ›Duty/tariff rate by product classification
- ›Duty/tariff rate by country of origin
- ›Whether additional trade-policy tariffs currently apply
- ›Required certifications or import restrictions by product category
Your country's official customs/tariff authority (e.g., the U.S. Harmonized Tariff Schedule via the U.S. International Trade Commission) or a licensed customs broker
Customs Brokers
A customs broker is a licensed professional who handles classification, documentation, and clearance on your behalf. For anything beyond a single sample shipment, using one is standard practice, not a sign you don't know what you're doing — customs regulations are genuinely complex, and the cost of a broker is usually small relative to the cost of a shipment held up or a compliance mistake.
Compliance Basics Beyond Duties
Depending on your product category, you may also need to account for:
Worth researching early, before you're close to launch
0/3These requirements are product-category-specific — ask your customs broker about them early, since some certifications take real time to obtain and can't be rushed right before a launch.
Discussion & questions
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