Many US importers with multi-tier supply chains may be paying higher duty than necessary because they have not evaluated a valuation method that has been available under US customs law since 1980 and that has been used by large importers to reduce their dutiable value since the Federal Circuit Court confirmed it in 1992. It is called first sale for export. If your supply chain has a manufacturer who sells to a middleman or trading company, who then sells to you, you may have the legal right to declare the lower manufacturer-to-middleman price as your customs value instead of the higher price you actually paid. The difference between those two prices is markup, freight preparation costs, and the middleman’s profit. That intermediate markup is generally excluded from customs value when CBP accepts a properly documented first sale for export claim meeting all three qualifying conditions. What you do have to do is understand the three conditions CBP requires, have the right documentation in place, and file the correct first sale declaration on every qualifying entry. This guide covers everything every importer needs to know about first sale for export: how it works, who qualifies, what CBP requires to prove it, what can go wrong, and the one legislative threat that could eliminate the method entirely.
Important compliance note: First sale for export is entirely lawful when correctly applied with the required documentation and proper CBP declaration filing. However, incorrect claims, including those made without the full documentary chain or where the middleman does not genuinely take title and assume risk, can result in post-entry duty adjustments, interest charges, and civil penalties under 19 U.S.C. §1592. Always implement first sale for export through documented internal policies, written broker instructions, and legal review before filing the first qualifying entry.
In Plain Language: What This Valuation Method Actually Does
US customs duty is calculated as a percentage of the declared customs value of imported goods. The higher the value you declare, the more duty you pay. Under standard customs practice, the customs value is the transaction value, which is the price you as the importer actually paid to your supplier for the goods. This is called the last sale value, because it is the last commercial sale before the goods entered the United States.
First sale for export allows importers in a qualifying multi-tier supply chain to declare a different, earlier price as their customs value: the price paid by the middleman to the manufacturer, which is typically lower than the price you paid to the middleman. The legal foundation is Section 402 of the Tariff Act of 1930, as amended by the Trade Agreements Act of 1979, which defines transaction value as the price paid for goods “when sold for exportation to the United States.” The phrase “when sold” does not specify which sale in a multi-sale chain. The Federal Circuit Court resolved this ambiguity in its 1992 ruling in Nissho Iwai American Corp. v. United States, holding that under appropriate circumstances, the relevant sale can be an earlier, arm’s-length sale further up the supply chain. That ruling created the first sale for export methodology that importers continue to use today. Application is fact-specific. CBP assesses the evidentiary strength and precise commercial arrangements on each claim and may consider additional factors beyond the three core conditions under 19 U.S.C. §1401a and 19 CFR Part 152.
The savings can be substantial. A middleman who adds 15% to 30% markup to the manufacturer’s price creates a customs value difference of exactly that percentage on every entry. On a USD 10 million annual import programme with a 25% average markup and a 20% applicable tariff rate, first sale for export valuation reduces the duty bill by approximately USD 500,000 per year. The reduction is legal, documented, and available to any importer whose supply chain meets CBP’s three qualifying conditions.
First Sale for Export: The Three Conditions CBP Requires
CBP established the three conditions for first sale for export valuation in its General Notice T.D. 96-87, published December 13, 1996. Every importer using or considering the first sale for export method must satisfy all three:
Condition 1: The Goods Must Be Clearly Destined for Export to the United States at the Time of the First Sale
At the moment the manufacturer sold the goods to the middleman, the goods must have been clearly intended for ultimate exportation to the United States. This is not presumed. It must be demonstrated through documentation. CBP looks for evidence showing US destination at the time of the first sale, including US-specific labelling or marking on the goods or their packaging, purchase orders referencing the US buyer or US destination, contracts between the middleman and the US importer that existed at or before the time of the manufacturer-to-middleman sale, and shipping instructions designating the US as the final destination.
The most commonly used documentary evidence is a through bill of lading covering the entire movement from origin to the US port of entry. CBP’s regulations at 19 CFR 152.103(a)(5) specifically provide that placement for through shipment to the United States is established by means of a through bill of lading. Where a through bill of lading is impossible because the seller uses their own conveyance, other documentation satisfactory to CBP may be substituted, but the importer carries the evidentiary burden.
Condition 2: There Must Be Two Bona Fide Sales Between the Parties
Two genuine commercial sales must exist: one from the manufacturer to the middleman, and one from the middleman to the US importer. A bona fide sale requires that title to the goods passes between the parties, financial risk transfers from the seller to the buyer, and payment actually occurs between the parties at each stage. The middleman must be a genuine buyer who takes ownership of the goods, not merely a facilitating agent who passes orders between the manufacturer and the US importer.
This is where most first sale claims fail. In CBP Ruling H327067, the agency denied first sale valuation because the middleman did not take title to or assume the risk of loss for the goods. The evidence in that case included Incoterms that placed risk on the manufacturer throughout, which indicated the middleman was acting as a facilitating agent rather than a genuine buyer. CBP’s analysis examined the Incoterms of the transaction, who bore insurance costs and risk of loss at each stage, whether the middleman paid the manufacturer regardless of whether it sold the goods to the US importer, and whether the middleman had the independent ability to resell the goods to another buyer.
A middleman who only acts when it has a confirmed US buyer order, who does not bear any risk if the US buyer cancels, and who receives payment from the US importer before paying the manufacturer, is likely to be characterised as an agent rather than a genuine buyer. The practical failure scenario: if your supplier only places a manufacturing order after receiving your confirmed purchase order, does not hold inventory, cannot resell to other buyers, and passes payment through to you before paying the manufacturer, CBP will almost certainly view the supplier as an agent and deny the first sale claim entirely. The commercial substance of each level in the supply chain must be real, not structural. A middleman who takes title, bears risk of loss, holds inventory, and can resell to multiple buyers is more likely to qualify as a genuine first sale party.
Condition 3: The First Sale Must Be Conducted at Arm’s Length
The manufacturer-to-middleman sale must be a transaction between unrelated parties negotiated at market rates, or if the parties are related, the transaction value must demonstrably reflect fair market conditions. A sale is presumed to be at arm’s length when the parties are unrelated. Where the manufacturer and the middleman are related, CBP will not automatically accept the first sale price. Instead, CBP examines whether the relationship influenced the price, whether the transaction value closely approximates a test value such as the deductive value or computed value for identical or similar merchandise, and whether the price covers all costs plus a representative profit.
For related party first sale situations, CBP may request income statements, transfer pricing studies, and other financial information relating to the companies’ profits and losses at each level. The practical message: first sale for export between related parties requires significantly more documentation and analysis than first sale between unrelated parties, and carries higher CBP scrutiny risk.
The Documentation CBP Requires to Support a First Sale Claim
CBP’s standard for first sale documentation is “a complete paper trail of the imported goods showing the structure of the entire transaction.” In practice this means the following documents must be available and consistent with each other:
- Manufacturer’s commercial invoice to the middleman: Showing the actual price paid by the middleman to the manufacturer for the specific goods. This is the price you intend to declare as customs value. It must reflect the actual agreed price, not a fabricated or estimated figure
- Middleman’s commercial invoice to the US importer: Showing the price the US importer actually paid. CBP uses both invoices to verify the spread between the two prices and to confirm both sales occurred
- Purchase orders at each level: The manufacturer’s purchase order from the middleman and the middleman’s purchase order from the US importer. These establish the independent commercial relationships at each stage
- Payment records at each level: Evidence that the middleman actually paid the manufacturer, and that the US importer actually paid the middleman. Wire transfer records, bank statements, or letters of credit at each stage
- Through bill of lading or equivalent evidence: Demonstrating that the goods were destined for the United States at the time of the first sale. The through bill of lading is CBP’s preferred evidence. Where it is not available, contracts, shipping instructions, or other documents showing US destination at the time of manufacture or first sale may be substituted
- Evidence of title transfer and risk assumption: Documents showing the middleman took title and assumed risk of loss. These can include insurance certificates in the middleman’s name, Incoterms consistent with risk transfer to the middleman, and evidence the middleman had the ability to sell to parties other than the US importer
- First sale declaration: At the time of entry filing, the importer must declare to CBP that the transaction value was determined on the basis of a price paid in an earlier sale. This declaration requirement has been mandatory since 2016
All documents must be retained for the standard five-year post-entry record retention period. CBP focused assessments and post-entry audits regularly target customs valuation. An importer who claimed first sale for export without the complete documentation chain faces retroactive duty demands, potential penalties, and loss of the ability to use first sale on future entries.
Real Example: What the Saving Looks Like in Practice
A US technology company imports server components from a Chinese manufacturer. The supply chain has two tiers: the manufacturer sells components to a Hong Kong trading company at USD 800,000 CIF per shipment, and the Hong Kong trading company sells the same components to the US importer at USD 1,000,000 CIF per shipment. The applicable tariff rate is 25% Section 301 plus 7.5% MFN duty equals 32.5% total.
Under last sale valuation (standard practice): Customs value USD 1,000,000. Duty at 32.5%: USD 325,000 per shipment.
Under first sale for export valuation (qualifying conditions met): Customs value USD 800,000. Duty at 32.5%: USD 260,000 per shipment.
Saving per shipment: USD 65,000. On 12 shipments per year: USD 780,000. This example assumes a simple additive tariff structure for illustration only. Actual combined duty rates (Section 301 plus MFN) vary by HTS code and CBP classification. Section 301 duties are applied to the customs value at the rate applicable to the specific HTS code and must be verified against current USTR Federal Register notices before using this method for financial planning.
The Hong Kong trading company is a genuine buyer that takes title, holds the goods in its warehouse, bears insurance risk, and has multiple US and European clients it sells to independently. The through bill of lading covers the full movement from China to the US port. Manufacturer invoices, trading company invoices, and payment records at each stage are complete and consistent. All three CBP conditions are satisfied. The importer declares first sale on each entry and retains the complete documentation set for five years.
This is not a tax avoidance scheme. It is US customs law applied correctly. The duty on the USD 200,000 markup between manufacturer and trading company is not legally owed because that markup was not part of the price paid for goods “when sold for exportation to the United States” under the Nissho Iwai ruling.
Why This Method Became More Valuable After Section 301 Tariffs
First sale for export became significantly more valuable after Section 301 tariffs on Chinese-origin goods reached 25% in 2019 and have remained high since. The same percentage saving on a higher tariff rate produces a larger absolute dollar saving. An importer with a 25% Section 301 rate and a 20% middleman markup saves five percentage points of a 25% rate on 20% of the customs value. As tariff rates increase, the absolute value of first sale for export increases proportionally.
Anecdotal evidence cited by Perkins Coie confirms that reliance on the first sale principle surged following the implementation of Section 301 tariffs in the first Trump administration and has grown even faster in response to the dramatically increased tariffs since 2025. PwC’s analysis confirms US companies importing Chinese-origin products subject to Section 301 duties in multi-tier procurement arrangements can effectively reduce the burden of Section 301 duties by declaring the value of the imported goods based on the lower price paid by the intermediary in the first sale, provided the qualifying conditions are satisfied.
The 2026 Threat: The Last Sale Valuation Act
On February 11, 2026, US Senators Bill Cassidy and Sheldon Whitehouse introduced the Last Sale Valuation Act. If enacted, the LSVA would amend Section 402 of the Tariff Act of 1930 to require that import duties be calculated based on the last sale value before exportation to the United States, meaning the price the US importer actually paid to the middleman. This would eliminate the first sale for export methodology entirely.
The senators described the LSVA’s purpose as levelling the playing field for small and domestic businesses and combating trade-based money laundering. The legislation currently has bipartisan support from two senators. It is not yet law. The LSVA is not a new concept: CBP solicited public comment on an equivalent interpretation in 2008, which was ultimately abandoned after industry opposition. Whether the 2026 LSVA will succeed where the 2008 proposal did not is uncertain. What is certain is that every importer currently using or eligible for first sale for export should be using the methodology now, while it remains available under current law. If the LSVA is enacted, the savings it produces today become permanently unavailable.
What Most Importers Get Wrong
They assume their middleman does not qualify as a genuine buyer. Many importers have trading companies or agents in their supply chain and assume those entities are agents rather than buyers. The distinction turns on the specifics of the commercial relationship, not the label on the contract. A trading company that takes title, bears risk, and has independent resale ability may qualify even if the importer historically treated it as an agent.
They use it without the complete documentation chain. First sale without documentation is a customs violation, not a strategy. CBP’s H327067 ruling was a denial based on inadequate evidence of title transfer, not a policy change against first sale. The methodology is valid. The evidence requirements are strict. Importers who claim first sale on their entry without the manufacturer’s invoice, payment records at each level, and through bill of lading are filing incorrect entries that CBP can assess penalties on if audited.
They do not file the mandatory first sale declaration. Since 2016, CBP has required importers to declare when the customs value is based on a first sale rather than the last sale. Failing to file the declaration while using first sale valuation is a separate compliance failure from the documentation requirements.
They apply it to related party transactions without the additional analysis. First sale between a manufacturer and a related middleman requires demonstrating the relationship did not influence the price. Without transfer pricing analysis, cost-plus documentation, or comparison to deductive value, a related party first sale claim is vulnerable to CBP challenge on the price acceptability test.
They confuse first sale with undervaluation. First sale for export is not a scheme to declare a lower value than the actual commercial price. It is a legal method to declare an earlier, genuine commercial price instead of the last commercial price. The manufacturer’s invoice must reflect the actual price paid between those parties. Fabricating a lower invoice is fraud. First sale uses a real price from a real commercial transaction earlier in the supply chain.
Five Actions Every Importer With a Multi-Tier Supply Chain Must Take
- Map every import product against your supply chain structure. For each active import programme, identify whether there is a middleman, trading company, or intermediary between the manufacturer and you. For any product where two commercial sales exist before the goods reach the US, assess whether the middleman takes genuine title and bears genuine commercial risk. This mapping exercise is the starting point for every first sale eligibility assessment. Our Global Trade Compliance team conducts first sale eligibility assessments across active US import portfolios, identifying qualifying supply chain structures and the applicable duty saving at current tariff rates
- Collect and review the manufacturer’s invoices for every qualifying product line. If you do not currently receive the manufacturer’s invoice to the middleman as part of your import documentation package, request it now. Without the manufacturer’s invoice you cannot file a first sale declaration and cannot support a first sale claim if audited. The manufacturer’s invoice is not optional documentation. It is the foundational document for the entire first sale methodology
- Confirm title transfer and risk assumption at the middleman level. Review the commercial arrangements between your supplier and their manufacturer. Review the Incoterms of the manufacturer-to-middleman transaction. If Incoterms place risk on the manufacturer throughout, or if the middleman only orders from the manufacturer after receiving your confirmed purchase order, the genuine buyer test may not be met. Restructuring Incoterms or contractual arrangements between the middleman and manufacturer may be required to establish a qualifying first sale structure
- File the CBP first sale declaration on every qualifying entry. Since 2016, CBP requires importers to declare at the time of entry that the transaction value was determined based on an earlier sale. This declaration must be filed on every first sale entry. Confirm with your customs broker that the declaration is being filed correctly and that the entry summary reflects the first sale customs value rather than the last sale value. Understanding what an Importer of Record does in managing customs valuation is the foundation of this compliance step: the IOR named on the entry bears legal responsibility for the accuracy of the declared customs value
- Build and maintain the complete documentation set and act before the LSVA becomes law. Retain manufacturer invoices, middleman invoices, purchase orders at each level, payment records, through bills of lading, and evidence of title transfer for every first sale entry for the full five-year post-entry period. The LSVA introduced in February 2026 would eliminate first sale for export if enacted. Every importer with a qualifying supply chain structure should be using the methodology now, while it remains available under current law. Our IOR services include customs valuation management as part of the entry compliance function, ensuring first sale declarations are filed correctly and documentation sets are maintained to CBP’s evidentiary standard on every qualifying entry
Building an Audit-Ready First Sale Programme
CBP focused assessments and post-entry audits regularly target customs valuation. An importer using first sale for export without a documented internal programme is exposed if CBP requests a review of historical entries. An audit-ready programme requires three elements beyond the per-entry documentation:
- Internal valuation policy: A written policy document defining which supply chain structures qualify for first sale, what documentation is required on each entry, how the mandatory CBP first sale declaration is filed, and who within the organisation is responsible for maintaining the documentary chain. The policy should reference T.D. 96-87, the three qualifying conditions, and the specific Incoterms and contractual arrangements that meet CBP’s bona fide sale and title transfer requirements
- Pre-audit file: For each active first sale programme, maintain a readily accessible file containing the structure diagram of the supply chain, the manufacturer-to-middleman commercial agreement, representative invoices at each level, payment records, through bills of lading, and any CBP rulings or advance rulings obtained on the specific transaction structure. When CBP opens a focused assessment, providing this file immediately demonstrates the organised, good-faith approach that distinguishes a compliant importer from one facing penalty escalation
- AD/CVD interplay check: If any of your imported goods are subject to antidumping or countervailing duty orders, first sale for export requires additional analysis. In AD/CVD cases, Commerce Department adjustments can affect the base for antidumping cash deposits and potential duty liability separately from CBP customs value. The customs value declared for duty purposes under first sale may interact differently with AD/CVD cash deposit rates calculated by Commerce. Verify the specific AD/CVD treatment for any product before applying first sale valuation to goods under an active AD or CVD order
How Carra Globe Supports Customs Valuation Compliance
Carra Globe provides IOR services and Global Trade Compliance for US importers with multi-tier supply chains who want to implement the first sale for export methodology with the documentation standards CBP requires. Our trade compliance team conducts first sale eligibility assessments identifying qualifying supply chain structures, assists with manufacturer invoice collection and documentation chain verification, advises on Incoterms and contractual arrangements between intermediaries and manufacturers to establish genuine title transfer and risk assumption, coordinates first sale declaration filing on qualifying entries through our ACE-registered IOR entity, and manages the five-year documentation retention requirement for all first sale entries. For importers whose customs value reduction strategy includes both first sale and other legal methods, our Global Trade Compliance service also covers HTS classification audits, FTA preferential rate claims, and drawback programme assessment as part of a comprehensive duty reduction programme. For the broader context of US customs valuation and tariff management, see our guides to US tariff evasion enforcement 2026 and how to reduce import duty in the US legally.
First Sale vs Last Sale: The Key Differences at a Glance
| Factor | Last Sale (Standard) | First Sale for Export |
|---|---|---|
| Declared customs value | Price you paid to the middleman or supplier | Price the middleman paid to the manufacturer (lower) |
| Documentation required | Commercial invoice from supplier. Standard entry documents | Manufacturer invoice, middleman invoice, purchase orders at both levels, payment records at both levels, through bill of lading, evidence of title transfer and risk assumption at middleman level |
| CBP scrutiny level | Standard. Entry processed at declared value | Higher. CBP may request full documentation package in audit. Mandatory first sale declaration on every qualifying entry |
| Typical duty benefit | None beyond standard duty rate | Duty calculated on the lower value. On a 25% Section 301 rate and 20% middleman markup, saving is 5% of CIF value per shipment |
| Risk if incorrectly applied | Minimal if invoice value is accurate | Post-entry duty adjustment, interest, and civil penalties under 19 U.S.C. §1592 if claim is denied and entry was filed without sufficient documentary support |
| Legislative risk | None. Last sale is the statutory default | Last Sale Valuation Act introduced February 2026 would eliminate this method if enacted |
Frequently Asked Questions: First Sale for Export
What is first sale for export and is it legal?
Completely legal. First sale for export is a customs valuation method established by the Federal Circuit Court in 1992 in Nissho Iwai American Corp. v. United States and confirmed by CBP in its 1996 General Notice T.D. 96-87. It allows importers with multi-tier supply chains to declare the manufacturer-to-middleman price as their customs value rather than the higher price they paid to the middleman. The duty saving comes from not paying duty on the middleman’s markup, which is legally excluded from the customs value when three conditions are met.
How do I know if my supply chain qualifies for first sale for export?
Three things must be true: there must be a genuine buyer between you and the manufacturer who takes title and bears commercial risk. That buyer must have purchased the goods with the US as the clear destination at the time of purchase. And the manufacturer-to-middleman transaction must be at arm’s length. If your trading company or agent simply passes orders without taking ownership or risk, the structure likely does not qualify. A customs valuation review will confirm eligibility for your specific supply chain.
What documents does CBP require to support a first sale claim?
A complete paper trail covering both sales. This means the manufacturer’s invoice to the middleman, the middleman’s invoice to you, purchase orders at each level, payment records proving payment occurred at each stage, and a through bill of lading or equivalent evidence showing US destination at the time of the first sale. Plus evidence the middleman took genuine title and bore risk: insurance in the middleman’s name, appropriate Incoterms, and confirmation the middleman had independent resale ability. All documents must be consistent with each other and retained for five years.
What is the first sale declaration and when must I file it?
Since 2016, CBP requires importers to declare at the time of entry filing that their customs value is based on a first sale rather than the last sale. This declaration is filed as part of the entry summary in ACE. It is mandatory. Claiming first sale valuation without filing the declaration is a separate compliance error from the documentation requirements. Your customs broker must be instructed to file the declaration on every first sale entry, not just some of them.
Can I use first sale for export on Chinese goods subject to Section 301 tariffs?
Yes. Section 301 tariffs are applied as a percentage of the customs value. First sale for export reduces the declared customs value on which Section 301 is calculated. If your Chinese manufacturer sells to a qualifying middleman who sells to you, and all three CBP conditions are met, the Section 301 duty is calculated on the lower manufacturer-to-middleman price. PwC and Perkins Coie both confirm this is a legitimate application of the first sale principle for Section 301 duty reduction.
What is the Last Sale Valuation Act and should it change my plans?
The Last Sale Valuation Act, introduced February 11, 2026 by Senators Cassidy and Whitehouse, would eliminate first sale for export by requiring duties to be calculated on the last sale price before importation. It is not yet law. A similar proposal was attempted in 2008 and abandoned. However, the threat is real enough that every importer with a qualifying supply chain should be using the methodology now while it remains available. If the LSVA passes, the savings it generates today become permanently unavailable. Consider evaluating and documenting eligible first sale for export claims promptly with qualified legal review, as the legislative risk is real and the timeline is uncertain.
Can first sale for export be used alongside FTA preferential rates?
These are two separate and independent duty reduction tools. FTA preferential rates reduce the applicable tariff percentage. First sale for export reduces the customs value on which the percentage is applied. Used together on a qualifying import, the saving compounds. A product at 5% FTA rate instead of 25% MFN, declared at USD 800,000 first sale value instead of USD 1,000,000 last sale value, produces a significantly lower duty bill than either tool alone. Assess both independently for every qualifying product line.
Disclaimer: This blog is for informational purposes only and does not constitute legal or customs advice. First sale for export eligibility, CBP documentation requirements, the three qualifying conditions, the Last Sale Valuation Act status, and related party valuation rules are accurate as of May 14, 2026 based on CBP official guidance, Federal Circuit Court ruling in Nissho Iwai American Corp. v. United States (1992), CBP General Notice T.D. 96-87, CBP Ruling H327067, 19 CFR 152.103, Perkins Coie, PwC, and Mohawk Global analysis. Always consult a qualified US customs attorney or licensed customs broker before implementing any first sale valuation programme.