Customs Value Builder

Customs Value Calculator — Transaction Value + Article 8 Adjustments

Build the dutiable customs value from your invoice price and Incoterm under WTO Method 1, with the Methods 2–6 fallback hierarchy explained.

Invoice + Incoterm

Article 8 adjustments

Transaction party

Dataset 2026.06.11-r1 · references last verified June 11, 2026

Methodology — how this calculator works

The dutiable customs value is computed under Method 1 (Transaction Value) of the Agreement on Implementation of Article VII GATT 1994: the price actually paid or payable for the goods when sold for export, adjusted per Article 8 — additions for international freight and insurance to the place of importation (CIF basis; the United States values FOB and adds neither), royalties and license fees paid as a condition of sale, buyer-supplied assists, packing costs, and selling commissions; buying commissions are excluded. The Incoterm you select determines which of these the invoice price already includes, so the same cost is never added twice. When Method 1 cannot apply (no sale, no price, or unresolved related-party influence under Art. 1.2(a)), the tool explains the mandatory Methods 2–6 fallback hierarchy (identical goods, similar goods, deductive, computed, fall-back) — it does not compute them numerically. Sources: WTO Valuation Agreement; WCO Technical Committee instruments; EU UCC (Reg 952/2013) Arts. 70–74; US 19 CFR Part 152. Every output is an estimate, not a binding ruling.

What counts toward the customs value

Article 8 of the WTO Valuation Agreement (Article VII GATT 1994, in force since 1995) adds specific costs to the price actually paid or payable when they are not already included: international freight and insurance to the place of importation (on a CIF basis), royalties and license fees paid as a condition of sale, the value of buyer-supplied assists such as tooling and engineering, packing costs, and selling commissions. Buying commissions stay out, and trade discounts already reflected in the invoice are not added back.

The destination matters. The European Union and most WTO members value imports CIF under the Union Customs Code (Reg (EU) No 952/2013, Articles 70–74, applicable since 1 May 2016), so freight and insurance up to the border form part of the dutiable base. The United States values FOB: under 19 CFR §152.103 international freight and insurance are excluded (CBP "Customs Value" Informed Compliance Publication, September 2024 edition), which is why the same invoice can produce two different customs values.

Related-party prices are not rejected automatically — Article 1.2(a) requires documenting that the relationship did not influence the price, typically through test values or circumstances-of-sale analysis. When no sale exists at all (consignments, free-of-charge samples, leased goods), Method 1 fails and the hierarchy of Methods 2–6 applies in strict order.

Customs valuation — frequently asked questions

How is customs value calculated under Method 1?
Method 1 (Transaction Value) starts from the price actually paid or payable for the goods when sold for export, then adds the Article 8 elements the invoice does not already include. Worked example with this tool's defaults: a $10,000.00 invoice sold FOB, with $800.00 international freight and $150.00 insurance paid separately by the buyer. Declared into a CIF-basis destination such as the EU, the dutiable customs value is 10,000 + 800 + 150 = $10,950.00. The same shipment declared in the United States stays at $10,000.00, because the US values imports FOB and 19 CFR §152.103 excludes international freight and insurance.
Is customs value CIF or FOB?
It depends on the destination. The EU and most WTO members value imports on a CIF basis — international freight and insurance up to the place of introduction are part of the customs value (Union Customs Code, Reg (EU) No 952/2013, Articles 70–74, applicable since 1 May 2016). The United States values imports FOB: 19 CFR §152.103 excludes international freight and insurance (CBP "Customs Value" Informed Compliance Publication, September 2024 edition). Article 8.2 of the WTO Valuation Agreement deliberately leaves this choice to each member, which is why this builder asks for the destination valuation basis. References last verified June 11, 2026.
Which costs does Article 8 add to the invoice price?
When not already in the invoice price, Article 8.1 adds: packing costs — labour and materials (Art. 8.1(a)(ii)); selling commissions and brokerage (Art. 8.1(a)(i)); royalties and license fees paid as a condition of sale (Art. 8.1(c)); buyer-supplied assists such as tooling, materials, and engineering (Art. 8.1(b)); and any proceeds of subsequent resale that accrue to the seller (Art. 8.1(d)). Article 8.2 covers international freight and insurance on CIF-basis destinations. Every addition must rest on objective and quantifiable data (Art. 8.3) — if that data does not exist, Method 1 cannot be used.
Are buying commissions or trade discounts part of the customs value?
No on both counts, with one nuance. Buying commissions — fees you pay your own purchasing agent — are excluded from the customs value under Article 8.1(a)(i); this calculator deducts them when they are bundled into the invoice. Trade discounts genuinely reflected in the price you actually pay are simply part of that lower price: customs values the net amount, so the discount is never added back. The watch-out is discounts settled retroactively after importation — the price actually paid or payable at the time of valuation is what governs the declaration.
When are royalties and license fees dutiable?
Royalties and license fees are added under Article 8.1(c) only when a two-part test is met: the payment must relate to the goods being valued AND be paid, directly or indirectly, as a condition of the sale for export. Trademark, patent, and know-how royalties paid to the seller or a party related to the seller typically qualify; fees for services unrelated to the imported goods typically do not. The CBP "Customs Value" Informed Compliance Publication (September 2024 edition) walks through the US analysis. When in doubt, document the license agreement terms before declaring.
What if the buyer and seller are related — or there is no sale at all?
A related-party price is not rejected automatically. Article 1.2(a) requires examining the circumstances of the sale — typically test values or evidence the price was settled consistently with normal industry pricing — so this builder flags related-party inputs for review instead of failing them. When there is no sale (consignment stock, free-of-charge samples, leased equipment), Method 1 cannot apply and the hierarchy takes over in strict order: identical goods (Art. 2), similar goods (Art. 3), deductive value (Art. 5), computed value (Art. 6), and fall-back (Art. 7). The deductive/computed order may be swapped at the importer's request (Art. 4).

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The customs value you build here is the base figure for duty, VAT, and clearance-fee math across the rest of the toolkit.