Incoterms and customs value: which freight comes out of the entered value on Form 7501, and the proof CBP wants

Why does the Incoterm matter for customs value?

An Incoterm decides which costs the seller pays and therefore which costs are built into the invoice price. The International Chamber of Commerce publishes the Incoterms 2020 rules as eleven three-letter trade terms; they allocate costs and risk between seller and buyer. They do not set customs value. US customs law does that, and it starts from the price, then removes some costs and adds others.

Transaction value is the price actually paid or payable for the goods when sold for exportation to the United States, plus the statutory additions (19 U.S.C. 1401a(b)(1)). Two provisions take costs out:

• International transport and insurance. The price actually paid or payable is defined as the total payment "exclusive of" the costs of transportation, insurance and related services incident to the international shipment from the country of exportation to the place of importation in the United States (1401a(b)(4)(A); 19 CFR 152.102(f)).
• Costs after import. Transaction value does not include, if identified separately from the price, reasonable costs of transport after importation, of construction, assembly, maintenance or technical assistance after importation, and the customs duties and other federal taxes payable by reason of importation (1401a(b)(3); 19 CFR 152.103(i)).

So the same goods can be invoiced at five different prices under five different terms and should come to the same entered value. When they do not, an Incoterm was read wrong or a deduction was taken without proof.

Which Incoterms put which costs inside the price?

The table is our general reading of how the Incoterms 2020 rules split costs, not text quoted from the ICC: under the C and D terms the seller pays the main carriage, under CIF and CIP the seller also buys insurance, and under EXW and the F terms the buyer pays the main carriage. Check what your own contract and invoice say, because the terms can be varied and CBP looks at what the price covers.

Two points from the regulations decide most disputes. Foreign inland freight inside an FOB or FCA price is dutiable by default; it only comes out when it is separately identified and happens after the goods were sold for export and placed with a carrier for through shipment, shown by a through bill of lading. And every deduction must be separately identified and proved. 19 CFR 141.86(a)(8) requires the invoice to itemize by name and amount all charges on the merchandise, including freight, insurance and commissions, or to show them on an attachment.

What proof does CBP want for a freight or insurance deduction?

CBP deducts actual costs, not estimates. HQ 546363 (July 15, 1997), on surgical gloves invoiced on terms the importer described as CIF duty paid delivered, sets out the long-standing position:

• Freight. The cost excluded is the actual cost paid to the freight forwarder or transport company. CBP looks to documentation from the freight company rather than the buyer-seller documents, which often contain estimates (HQ 544538, as described in HQ 546363).
• Insurance. The deduction is the amount actually paid to the insurer (HQ 543827, as described in HQ 546363).
• US duty and post-import costs. They must be shown to be included in the price in the first place, and then deducted at their actual amount.

In that ruling the importer lost every deduction. The invoices showed blank lines for carriage, insurance and freight with the same figure as sub-total and invoice total, no carrier or insurer documents were produced, and no purchase orders, supply agreements or contracts were submitted. CBP noted that duty, brokerage and domestic freight are normally not included in CIF terms, citing the 1990 Incoterms, and found nothing showing they were in this price.

The proof set for a past entry is therefore: the contract or purchase order showing the terms; the commercial invoice with the charges itemized; the bill of lading or air waybill; the carrier's or forwarder's freight invoice; the insurance certificate and premium invoice; and, for a duty-paid price, the entry summary showing the duty actually paid.

How is a CIF line entered, and where does it go wrong?

Take an illustrative shipment of plastic housings, subheading 3926.90.99, product of Vietnam, entered on August 7, 2026. The stack in HTS Revision 23 (2026) is the general rate of 5.3 percent plus the Section 301 forced-labor duty for Vietnam, heading 9903.05.84, of 12.5 percent for goods entered from July 24, 2026 (USTR notice, 91 FR 47318), 17.8 percent in all; the subheading is not among the U.S. note 52 exemptions. No IEEPA duty applies, because CBP stopped collecting IEEPA duties on goods entered from February 24, 2026 (CSMS # 67834313). The merchandise processing fee is 0.3464 percent of value under 19 CFR 24.23. The invoice is CIF Long Beach, $50,000, with lines for freight of $6,500 and insurance of $150 taken from the seller's quotation. The carrier's bill for the voyage is $4,200 and the insurer's premium is $150.

On one entry the gap looks small. It is the same on every shipment the seller's freight quote overstates, and seller quotations often lag falling freight markets. The reverse error is just as common:

An FOB price does not include the international freight, so there is nothing to deduct and nothing to add. Adding the forwarder's bill to the value pays the full stack on freight that customs value excludes.

What is the DDP duty-in-price trap?

A DDP price includes the import duty, so the duty has to come out before duty is charged, and the amount to take out depends on the value you are trying to find. Take the same housings sold DDP to the buyer's warehouse for $120,000, with actual international freight of $5,000, actual insurance of $200 and actual US delivery from the port of $1,800, all identified separately in the contract and invoice. For simplicity the example assumes the processing fee is billed outside the price.

The entered value V solves: $120,000 = V + $5,000 + $200 + $1,800 + 17.8% of V. So V = $113,000 / 1.178 = $95,925.30, and the duty is $17,074.70. The two add back to $113,000.

Three things follow. First, the duty only comes out of the price if it is identified separately (1401a(b)(3)); a lump-sum DDP price with no breakdown is appraised with the duty inside it. Second, the deduction is the actual duty, not the estimate: in HQ 546111 (March 1, 1996) the invoice carried a line headed "estimate US duty", and CBP used the actual duty along with the actual transportation cost from the air waybills. Third, the estimate moves whenever the duty stack moves. A DDP price built before a new Chapter 99 duty took effect carries an estimate at the old stack, and the deduction has to be recomputed at the stack for the entry date. If the seller absorbs a new duty without changing the price, the deductible duty rises and the entered value falls; an estimate larger than the actual duty does the opposite and understates the value.

How do the Incoterm and the charges field show up on Form 7501?

The Form 7501 instructions (revision 02/26) put the two numbers side by side in column 36. The entered value is the US dollar value as defined in 19 U.S.C. 1401a. The charges field, shown under it with the letter C, records the aggregate cost of freight, insurance and all other charges, costs and expenses incurred from alongside the carrier at the port of exportation to alongside the carrier at the first US port of entry, excluding US import duties. For overland shipments from Canada or Mexico, the charges run from the point of origin to the first US port.

That makes the check mechanical. For each line, entered value plus charges should equal the invoice price under C terms, less the post-import costs and duty under D terms, and the entered value alone should equal the invoice price under FOB or FCA terms unless a through-bill deduction for foreign inland freight is documented. The field-by-field reading of the form is in Form 7501 field by field.

How do you audit past entries for freight and Incoterm errors?

1. Pull the terms. From the invoices behind each entry, record the Incoterm, the invoice total and any itemized freight, insurance and duty lines.
2. Pull the 7501 numbers. From the entry export, record the entered value and charges per line, and the related-party flag.
3. Run the reconciliation per line. C and D terms with charges of zero mean freight is sitting in the value: an overpayment. FOB, FCA or EXW terms with charges above zero mean a deduction was taken for freight that was not in the price: an underpayment. Charges equal to the seller's round quote rather than the carrier's bill mean an estimate was deducted.
4. Check DDP lines separately. An entered value equal to the DDP invoice total is duty charged on duty unless the price had no breakdown. A deduction equal to an estimate needs recomputing at the actual duty for the entry date.
5. Collect the third-party proof. Carrier bills, insurer invoices and through bills of lading for each deduction you keep or claim.
6. Price each finding at the full stack. A dollar of value moved changes the duty by the whole stack on the line, not just the general rate; the duty calculator shows the layers for a code, origin and entry date.

Related-party lines deserve a second look. In HQ 546111 CBP noted that the invoices were between related parties, which the importer had not indicated on the entry summary. How related-party pricing and year-end adjustments affect the same value is in transfer pricing adjustments and customs value, and the additions that go the other way, assists, royalties and commissions, are in what counts in customs value.

What do you do with each finding?

An overpayment on an unliquidated entry is corrected by post-summary correction, filed within 300 days of the entry date and at least 15 days before the scheduled liquidation date, whichever is earlier (CBP post-summary correction page). After liquidation, the appraised value can be protested within 180 days (19 U.S.C. 1514(c)(3)). An underpayment is corrected by post-summary correction while that window is open and otherwise considered for a prior disclosure. The full set of recovery routes is in how to recover overpaid import duty. Confirm any filing with a licensed customs broker.

How does TariffSense fit into a freight and value check?

TariffSense reads entered values and charges from Form 7501s and broker entry exports alongside the commercial invoices and shipping documents you provide, checks the declared values against them, and checks each line's Chapter 99 stack against the measures in force on its entry date, so a corrected value can be priced at the full stack, in either direction. It reads the Incoterm on each commercial invoice and matches it against the entered value and the charges field in column 36, flagging C and D terms entered with charges of zero, FOB, FCA or EXW terms entered with charges above zero, and charges that equal the seller's freight quote instead of the carrier's bill. The valuation decision and any filing stay with your team and your broker. The post-entry audit page describes what goes in and what comes back.

What should you do next on your own entries?

Take your five largest suppliers by duty paid and write down the Incoterm each one invoices on. For a month of entries from each, compare entered value plus charges with the invoice total, and ask your forwarder for the carrier's bills behind every freight deduction. Fix the instruction to your broker first, then size the past entries still inside a correction or protest window. The post-entry audit pillar covers the other checks to run on the same lines.