Customs Value

Customs value is the monetary amount assigned to imported goods for the purpose of calculating import duties. In the United States, CBP determines customs value primarily using the “transaction value” method, which is the price actually paid or payable for the goods when sold for export to the United States. This concept sounds simple, but the adjustments, additions, and deductions required to arrive at the correct customs value make it one of the most frequently audited and disputed areas of import compliance.

Transaction Value Method

The transaction value is the starting point for customs valuation in the vast majority of import entries. It is based on the price on the commercial invoice between the buyer and seller. If a U.S. importer purchases 5,000 widgets from a Chinese manufacturer at $2.00 per unit, the base transaction value is $10,000. However, CBP requires certain costs to be added to or excluded from this amount depending on the circumstances of the sale.

Additions to transaction value include: packing costs paid by the buyer (if not already included in the invoice price), selling commissions paid by the buyer, assists (materials, tools, dies, molds, engineering work, or artwork supplied by the buyer to the foreign manufacturer at reduced cost or free of charge), royalty and license fees that the buyer must pay as a condition of the sale, and proceeds from subsequent resale that flow back to the seller.

Deductions or exclusions include: international freight and insurance costs (for shipments on CIF terms, the freight and insurance must be backed out to arrive at the FOB value), domestic transportation after importation, charges for construction or installation after importation, and buying commissions (payments to the buyer’s purchasing agent, as opposed to the seller’s agent).

Alternative Valuation Methods

If the transaction value method cannot be used (because there is no sale, the buyer and seller are related and the relationship influenced the price, or other disqualifying conditions exist), CBP applies alternative methods in a specified hierarchy: transaction value of identical merchandise, transaction value of similar merchandise, deductive value (working backward from the U.S. selling price minus domestic costs), computed value (building up from the manufacturer’s production costs), and finally, a “fallback” method using reasonable means.

Related-party transactions are the most common trigger for alternative methods. If the importer and the foreign manufacturer are owned by the same parent company, CBP scrutinizes whether the transfer price reflects an arm’s-length value. Companies in this situation often prepare transfer pricing studies to support their declared customs value.

Common Valuation Errors

Failing to include assists: If a U.S. seller provides product molds to their Chinese factory at a cost of $15,000, and those molds are used to produce goods shipped to the U.S., the $15,000 must be allocated across the units produced and added to the customs value. Many importers overlook this requirement, especially when the mold was paid for years ago.

Using the wrong Incoterm: Goods purchased on CIF terms include ocean freight and insurance in the invoice price. The correct customs value for U.S. entry is the FOB price (excluding international freight and insurance). Failing to deduct freight and insurance from a CIF invoice results in overpayment of duties.

Undervaluation: Declaring a lower value than what was actually paid to reduce duty payments is fraud. CBP actively screens for undervaluation using import data analytics, comparing declared values against historical averages for the same product category and trade lane. Penalties for negligent undervaluation start at 20% of the dutiable value; fraud penalties can reach four times the duty amount.

Impact on FBA Sellers

For Amazon sellers importing consumer goods, customs value directly determines the duty cost per unit. A product classified under an HTS code with a 6.5% duty rate and a Section 301 tariff of 25% faces a combined 31.5% assessment on the customs value. Getting that value right, neither too high (overpaying duties) nor too low (risking penalties), has a direct effect on unit economics. MeisterPrep’s clients work with their customs brokers to establish correct valuations before goods arrive at the warehouse, ensuring the duty costs factored into their pricing models are accurate and defensible.