Customs Valuation (Including Assists, Royalties & Transfer Pricing)
Customs valuation attorney handling transfer pricing, assists, royalties, and CBP audit defense across California and nationwide. Free consultation.
International Trade & Customs Law Services
Comprehensive customs and tariff defense for California importers at the Port of Los Angeles, Port of Long Beach, and all U.S. ports of entry. Services include CBP audit defense, tariff classification, customs valuation, Section 301/232/IEEPA tariff strategy, UFLPA forced labor compliance, duty drawback recovery, and Court of International Trade litigation.
Current Tariff Landscape
With effective tariff rates at historic highs, California businesses need experienced trade counsel. We handle Section 301 China tariffs, Section 232 steel/aluminum tariffs, IEEPA tariff refund claims, and reciprocal tariff compliance.
Free consultation for importers: (818) 514-7680.
Filed Court of International Trade Actions
Trembach Law Firm is not only admitted to the U.S. Court of International Trade — it files its own IEEPA refund complaints there under 28 U.S.C. § 1581(i), with new complaints filed as importers sign. CBP deployed CAPE Phase 3 — which covers finally liquidated entries for plaintiffs holding a court reliquidation order — on October 6, 2026. As of October 28, 2026 the firm is counsel in 35 actions at the Court of International Trade, docket numbers 1:26-cv-04095, 1:26-cv-04154, 1:26-cv-04156, 1:26-cv-04164, 1:26-cv-04185, 1:26-cv-04248, 1:26-cv-04271, 1:26-cv-04277, 1:26-cv-04300, 1:26-cv-04327, 1:26-cv-04328, 1:26-cv-04335, 1:26-cv-04342, 26-04390, 26-04392, 26-04393, 26-04394, 26-04395, 26-04396, 26-04418, 26-04421, 26-04488, 26-04556, 26-04559, 26-04563, 26-04568, 26-04569, 26-04616, 26-04617, 26-04618, 26-04643, 26-04668, 26-04745, 26-04766, 26-04797 (list and verification: Court of International Trade filings). Anatolii Trembach is admitted to practice before the Court of International Trade and is licensed in California, State Bar #349304, verifiable at apps.calbar.ca.gov.
This matters for IEEPA refunds specifically. The Court of International Trade has ordered CBP to reliquidate and refund on plaintiffs’ entries, and CBP’s CAPE Phase 3 for finally liquidated entries is likewise available only to importers who are plaintiffs at the Court. An importer who never filed has no confirmed, self-executing mechanism. Choosing counsel who has actually filed at that court, rather than counsel who only describes the process, is therefore a practical question and not a marketing one.
Jurisdiction over these actions rests on 28 U.S.C. § 1581, and the window to sue runs under 28 U.S.C. § 2636(i). No particular outcome is promised or guaranteed.
Fees, Costs and Case Results
Representation in these matters is offered on a contingency basis covering attorney fees only: there is no attorney fee unless we recover, and clients remain responsible for case costs, such as court filing and service fees. The specific terms that apply to a matter are set out in the written fee agreement for that matter.
Where this site refers to a verdict, settlement or court order, that result was dependent on the facts of that case, and results will differ if based on different facts. Past results do not predict or guarantee the outcome of any other matter, and no particular outcome is promised or guaranteed.
Frequently Asked Questions
- What is customs valuation and why is it critical for California importers?
- Customs valuation determines the dutiable value of imported merchandise under 19 USC 1401a, which directly affects the amount of duties, taxes, and fees owed. For California importers processing goods through Los Angeles, Long Beach, and Oakland ports, proper valuation is essential because duty rates are applied to the declared value. Incorrect valuation can result in significant underpayments requiring back duties plus interest, penalties under 19 USC 1592, and increased CBP audit scrutiny. Transaction value—the price actually paid or payable—is the primary valuation method, but must include statutory additions like assists, royalties, and proceeds of resale when applicable.
- What is transaction value under customs law?
- Transaction value under 19 USC 1401a(b) is the price actually paid or payable for imported merchandise when sold for exportation to the United States. This includes all payments made directly or indirectly by the buyer to or for the benefit of the seller. Transaction value must be adjusted by adding statutory additions including selling commissions, assists (materials, tools, dies, molds, engineering provided by the buyer), royalties and license fees paid as a condition of sale, and proceeds of any subsequent resale that accrue to the seller. Transaction value cannot be used when the buyer and seller are related unless circumstances of sale or test values demonstrate acceptable pricing.
- How does CBP treat related party transactions for valuation purposes?
- Under 19 USC 1401a(b)(2)(B), transaction value is acceptable for related party transactions only if: (1) examination of the circumstances of the sale demonstrates that the relationship did not influence the price, or (2) the transaction value closely approximates test values such as transaction values in sales to unrelated buyers, deductive values, or computed values for identical or similar merchandise. California importers purchasing from related foreign suppliers must maintain documentation demonstrating arms-length pricing through circumstances of sale analysis or test value comparisons. CBP closely scrutinizes related party transactions during audits.
- What are assists and how must they be valued for customs purposes?
- Assists under 19 USC 1401a(h) are items provided by the buyer to the seller free of charge or at reduced cost for use in producing imported merchandise. Dutiable assists include: materials, components, and parts incorporated into imported goods; tools, dies, molds, and similar items used in production; merchandise consumed in production; and engineering, development, artwork, design work, plans, and sketches undertaken outside the United States. Assists must be valued at their cost of acquisition or production, with engineering assists valued at cost in the country where undertaken. The value must be apportioned across all merchandise benefiting from the assist using reasonable allocation methodologies.
- When are royalties and license fees dutiable?
- Royalties and license fees are dutiable additions to transaction value under 19 USC 1401a(b)(1)(D) when they: (1) relate to the imported merchandise, and (2) are paid as a condition of sale. The "related to" requirement is met when the royalty is paid for intellectual property incorporated in or used to produce the imported merchandise. The "condition of sale" requirement is met when the buyer cannot purchase the goods without paying the royalty, regardless of whether the royalty is paid to the seller or a third party. California importers with trademark, patent, copyright, or technology licensing arrangements must analyze each payment for dutiability.
- What is first sale valuation and how can it reduce duties?
- First sale valuation allows importers to declare customs value based on the first sale in a multi-tiered transaction chain rather than the last sale before importation. When a manufacturer sells to a middleman who resells to the U.S. importer, the lower manufacturer-to-middleman price may be used if it constitutes a bona fide sale for export to the United States. Requirements include: the first sale must be a genuine arms-length transaction, the goods must be clearly destined for the U.S. at the time of first sale, and the importer must maintain detailed documentation. First sale can provide significant duty savings for California importers using buying agents or trading companies.
- What are deductive and computed value methodologies?
- When transaction value cannot be determined or accepted, CBP applies alternative valuation methods in prescribed order. Deductive value under 19 USC 1401a(d) works backward from the U.S. resale price, deducting commissions, transportation, duties, and profit margins. Computed value under 19 USC 1401a(e) builds up from the cost of materials, fabrication, profit, and general expenses in the country of production. The importer may request computed value before deductive value. These methods require detailed cost information and careful calculation to ensure proper valuation when transaction value is unavailable.
- How should California importers coordinate transfer pricing and customs valuation?
- Transfer pricing for income tax purposes and customs valuation, while related, serve different regulatory objectives and may yield different values. California importers must ensure their intercompany pricing satisfies both IRS Section 482 requirements and CBP valuation standards under 19 USC 1401a. Transfer pricing documentation including functional analysis, comparable company studies, and selected transfer pricing method can support customs valuation compliance. However, customs law has specific requirements for related party transactions, assists, and royalties that may differ from tax treatment. A coordinated approach prevents conflicts between tax positions and customs declarations.
- What penalties apply to customs valuation violations?
- Valuation errors can result in substantial penalties under 19 USC 1592 based on culpability level. Negligent undervaluation carries penalties up to 2x the loss of revenue or 20% of dutiable value. Gross negligence penalties reach 4x loss of revenue or 40% of dutiable value. Fraud penalties can reach 4x domestic value plus potential criminal prosecution. Common valuation violations include failure to include assists, omitting dutiable royalties, underreporting transaction value, and improper first sale claims. Prior disclosure under 19 CFR 162.74 before CBP discovery can significantly reduce penalty exposure.
- How do I respond to a CF-28 about valuation?
- CF-28 Requests for Information about valuation require strategic response within 30 days. Valuation-focused CF-28s typically request documentation of related party relationships, transfer pricing methodology, assist identification and valuation, royalty payment details, and circumstances of sale evidence. Your response should include comprehensive documentation supporting your declared value, legal analysis addressing CBP's specific concerns, and affirmative evidence that your valuation methodology complies with 19 USC 1401a. Inadequate responses can escalate to CF-29 value adjustments and increased duty assessments. Engage experienced valuation counsel to prepare persuasive responses.
- What is the circumstances of sale test for related parties?
- The circumstances of sale test under 19 USC 1401a(b)(2)(B) examines whether the related party relationship influenced the price paid. CBP analyzes factors including: how the price was established (negotiation, formula, market-based); how the price compares to prices for sales to unrelated buyers; whether pricing is consistent with normal industry practices; and whether the price provides recovery of costs plus profit consistent with the firm's overall profit experience. California importers must document their pricing methodology and demonstrate that relationship factors did not result in prices below what would be charged to unrelated parties.
- How do I calculate and allocate assist values?
- Assist valuation requires determining the cost and apportioning value across benefiting merchandise. For tangible assists (tools, dies, molds), use acquisition cost if purchased or production cost if produced. For engineering and design work, use cost in the country where performed. Allocation methodologies include: per-unit allocation based on expected production quantity; actual units produced during a period; value-based allocation proportional to merchandise value; or other reasonable methods consistent with generally accepted accounting principles. Document your allocation methodology and maintain records supporting assist values added to transaction value.
Contact Trembach Law Firm
Trembach Law Firm, APC
27001 Agoura Road, Suite 350, Calabasas, CA 91301
Phone: (818) 514-7680
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