Aaron Graves, PhDude (Replica)

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import duty calculator usa

Posted on February 16, 2026 by Admin

USA Import Duty Calculator

Estimate U.S. customs duty, Section 301 tariffs, MPF/HMF, and a basic landed cost. Enter your known rates from the HTS code and customs broker for best accuracy.

Usually the transaction value declared to U.S. Customs.
Enter your shipment details and click Calculate Duty.
This is an educational estimate, not legal or broker advice. Real charges depend on HTS classification, origin, valuation method, trade remedies, exclusions, and current CBP rules.

How U.S. import duty is calculated

If you import goods into the United States, your total landed cost is more than just the invoice and freight bill. In many cases, importers must pay customs duty, additional tariffs, and government processing fees. This import duty calculator for USA shipments helps you model those charges before your cargo arrives.

The key driver is your product’s HTS code (Harmonized Tariff Schedule classification). The HTS code determines the base duty rate. Then, depending on country of origin and product category, you may also have additional charges such as Section 301 tariffs, anti-dumping/countervailing duties (AD/CVD), or other fees.

Main cost components to understand

  • Entered customs value: The value declared to Customs, often based on transaction value rules.
  • Base duty: Entered value × HTS duty rate.
  • Additional tariffs: Extra percentage rates such as Section 301.
  • MPF (Merchandise Processing Fee): Typically applies to formal entries, with minimum and maximum limits.
  • HMF (Harbor Maintenance Fee): Applies to many ocean imports.
  • Brokerage/compliance costs: Broker fees, filing fees, and related service charges.

How to use this import duty calculator usa tool

1) Enter customs value and logistics costs

Start with entered customs value. Then add shipping and insurance so you can estimate the total landed cost. Even when shipping is not dutiable in many cases, it still affects your all-in budget.

2) Add the correct duty and tariff rates

Use your HTS lookup and broker guidance to enter a realistic base duty rate. If your product is subject to Section 301 or another trade remedy, include those percentages in the additional fields.

3) Choose entry type and transport mode

Formal entries generally trigger MPF and may involve more compliance requirements. Ocean mode can also trigger HMF. The calculator handles these automatically based on your selection.

4) Review your estimated total landed cost

The results panel breaks out each component so you can see exactly where the money goes: duty, additional tariff, MPF, HMF, and non-government fees.

Simple example

Suppose your entered value is $5,000 and base duty is 5%. You also have $450 shipping, $50 insurance, and $125 brokerage. If no Section 301 applies, your estimate may look like this:

  • Base duty: about $250
  • MPF: based on formal entry rule and fee limits
  • HMF: only if ocean mode applies
  • Total landed cost: product value + logistics + government fees + brokerage

This quick estimate helps you price products, set margins, and avoid surprise costs at arrival.

What can change your final customs bill

HTS classification accuracy

Small changes in product classification can produce big duty differences. Always verify HTS details, product specs, and intended use.

Country of origin rules

Origin affects duty treatment, FTA eligibility, and extra tariffs. Do not confuse shipping country with legal country of origin.

Trade actions and exclusions

Section 301 and other trade measures can be updated. Exclusions can expire or change. Keep your assumptions current before final pricing.

Entry value thresholds

De minimis and informal/formal entry decisions can materially change fees. If you use the de minimis checkbox in this tool, apply it only when your shipment is actually eligible.

Best practices for import planning

  • Maintain a duty sheet by SKU with HTS code and origin.
  • Model multiple scenarios (with and without additional tariffs).
  • Keep a compliance calendar for rate and rule updates.
  • Work closely with a licensed customs broker.
  • Audit landed cost after clearance and improve future estimates.

FAQ

Is this calculator exact?

No. It is a planning estimator. Use it for budgeting and negotiation, then confirm details with your broker and official CBP resources.

Does this tool replace HTS research?

No. The duty rate input is only as accurate as your HTS classification and origin determination.

Can I use this for Amazon FBA imports?

Yes, as a starting point. Add your own last-mile and fulfillment charges for a complete product margin model.

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