Specialized Practical Guide to Customs Valuation (Taxable Price) Cases

Practical Handling of Special Cases in Customs Valuation

Practical handling of special cases in customs valuation involves clarifying which costs should be included in or excluded from the customs value when the standard invoice price alone cannot accurately determine the customs value of imported cargo.

In import declarations, the customs value is generally calculated based on the transaction price of the imported goods. However, actual transactions may include challenging elements such as freight charges, insurance premiums, royalties, mold costs, free supplies, inspection costs, discounts, offsets, special relationships, re-importation after repair, mail-order sales, and personal imports.

This article does not explain the basic terms of customs valuation. Instead, it focuses on special cases that often cause differing practical judgments. Maritime Wiki aims to provide importers, freight forwarders, customs brokers, and insurance practitioners with practical guidance on what to verify when determining the customs value.

Scope Covered in This Article

Item	Covered in This Article	Detailed Coverage in Other Articles
Special Cases of Customs Valuation	How to verify transactions where the customs value cannot be determined by the usual invoice price alone	Calculation methods for customs value, basic terms of customs valuation
Determination of Additive Elements	Verification of royalties, free supplies, mold costs, selling commissions, inspection costs, and similar elements	Actual paid or payable price, additive elements, basic structure of CIF value
Costs Not Included in Additions	Classification of buying commissions, domestic freight after import, installation costs after import, and similar costs	Costs excluded from customs value, Incoterms and customs valuation
Special Related-Party Transactions	Practical verification of whether special relationships affect price, comparable prices, and pricing methods	Transfer pricing rules, related-party transactions, transfer pricing documentation for tax purposes
Discounts, Offsets, and Subsequent Adjustments	Genuine discounts, import transaction terms, finalization by declaration time, and handling of claim offsets	Amended declarations, requests for reassessment, price adjustment clauses, responses to post-import audits
System-Related Compliance	Valuation declarations, comprehensive valuation declarations, prior rulings on customs valuation, and categorization of small-value imports	Valuation declaration system, prior ruling system, simplified tariff system for small-value imports

Basic Structure of Customs Valuation

Customs valuation calculates the customs value of imported cargo based on applicable laws. Typically, this is grounded on the price actually paid or payable by the buyer to the seller in the import transaction.

This price may include additional elements such as freight to the port of import, insurance premiums, certain commissions, packing and container costs, goods supplied free of charge, and royalties.

However, not all costs are included in the customs value. Domestic transportation after import, buying commissions, and post-import installation costs may, depending on circumstances, be excluded from the customs value.

Hierarchy of Valuation Methods

In customs valuation, the first step is to consider Method 1, which is based on the transaction value of the imported goods. When Method 1 applies, the customs value is calculated by adding any necessary adjustments to the actual paid or payable price.

If Method 1 is not applicable, other methods are considered in order, including values of identical or similar goods, domestic selling prices, production costs, or reasonable methods.

Therefore, even in special cases, the primary issue to confirm is whether the import transaction can be valued under Method 1. When there are related-party transactions, cases where the transaction value does not reflect the actual price, free-of-charge goods, or special contract structures, the applicability of Method 1 becomes a key consideration.

Decision Flow for Special Cases

Stage	Items to Confirm	Documents to Review	Actions if Issues Are Found
1. Confirmation of Import Transaction	Verify the sales contract, buyer, seller, payment terms, and scope of the cargo price	Sales contracts, purchase orders, invoices, payment statements	Clarify whether the import transaction itself is valid and established
2. Verification of Actual Paid or Payable Price	Check whether the buyer makes any payments to the seller or third parties beyond the invoice price	Remittance records, invoices, separate contracts, offset agreements	If there are payments outside the invoice, confirm their relationship with the customs value
3. Confirmation of Additive Elements	Check freight charges, insurance premiums, selling commissions, royalties, free supplies, and mold costs	Freight details, insurance invoices, license agreements, mold contracts	Coordinate with the customs broker to ensure no additive elements are omitted
4. Confirmation of Non-Additive or Deductible Elements	Verify buying commissions, domestic transportation after import, installation costs, genuine discounts, and similar elements	Buying agency contracts, domestic cost details, discount agreements	Assess based on substance and supporting documents, not only on nominal descriptions
5. Confirmation of Special Relationships	Determine whether prices between affiliated companies are influenced by related-party effects	Price lists, transfer pricing documents, comparable prices, contracts	Consider advance rulings or expert consultation if necessary
6. Confirmation of Valuation Declaration and Advance Rulings	Confirm whether valuation declarations, comprehensive valuation declarations, or advance rulings on customs valuation are required	Valuation declaration forms, comprehensive valuation declarations, advance ruling responses	For ongoing transactions, organize the valuation position before the first import

Concept of Additional Elements

Certain costs not included in the actual paid or payable price may be added to the customs value. Typical examples include freight charges to the port of import, insurance premiums, selling commissions, container and packing costs, free supplied goods, royalties, and proceeds attributable to the seller.

In practice, the key issue is not the name of the cost, but whether the cost is related to the imported goods transaction, borne by the buyer, and not included in the actual paid or payable price.

For instance, even with the same term “commission,” a Buying Commission and a Selling Commission are treated differently. Similarly, for royalties, the treatment depends on whether they are related to the imported goods and paid as a condition of sale for those goods.

Handling of Freight and Insurance Charges

Freight and insurance charges up to the port of import are key components when calculating the customs value. When the invoice price does not include freight and insurance to the port of import, such as under FOB or EXW terms, these costs should be added to determine the customs value.

Even under CIF terms, it is essential to verify what the invoice price actually covers. If domestic transportation or storage costs after import are included, it is important to distinguish between expenses incurred up to the port of import and those incurred afterward.

Regarding insurance premiums, when a blanket insurance contract is used or when the insurance cost is not itemized, it is necessary to confirm which amount should be reflected in the customs value.

Royalty and License Fees

Royalty and license fees are common additive elements that can raise issues in customs valuation. These fees may be paid by the buyer to the seller or a third party under various names such as trademark, patent, design, copyright, technical usage fees, or brand usage fees.

If these fees relate to the imported goods and are paid as a condition of sale for the imported goods, including them in the customs value may be necessary. Conversely, license fees unrelated directly to the imported goods or costs solely related to domestic sales activities within Japan may be treated differently.

In practice, it is important to verify the contract, license agreement, invoices, payment recipients, payment terms, the connection to the imported goods, and whether payment of the license fee is essential to purchase the goods.

Free Supplied Goods and Mold Costs

There are cases where the buyer provides the seller with materials, parts, molds, tools, blueprints, designs, technical documents, and similar items free of charge or at a discounted price.

If these are used in the production of imported goods, their value may be added to the customs value. For example, when a Japanese importer supplies molds to an overseas factory free of charge and imports products manufactured using those molds, the treatment of the mold costs becomes an issue.

Similarly, free supplied components, labels, packing materials, design data, and technical support fees also require verification. In practice, it is necessary to clarify the value of the supplied items, the depreciation method, the correlation with the target products, and the allocation method for the imported quantity.

Buying Commission and Selling Commission

Commissions can cause confusion in customs valuation. A Buying Commission paid to a buying agent acting on behalf of the buyer may be treated as non-includable in the customs value.

On the other hand, a Selling Commission paid to a selling agent on the seller’s side, or a commission related to the seller’s selling activities, is often subject to inclusion in the customs value.

The key point is to determine on whose behalf the agent is acting, what the commission compensates for, and how it relates to the price paid or payable to the seller. Even if the contract states “commission,” its substance must be verified before making a determination.

Commission Category	Basic Concept	Documents to Verify	Practical Considerations
Buying Commission	Commission paid to a buying agent acting for the buyer	Buying agency agreement, scope of work, payment details, agent’s role	May not be added to the customs value if conditions are met
Selling Commission	Commission related to the seller’s selling activities or selling agent	Selling agency agreement, invoices, relationship with seller, payment terms	Often subject to inclusion in the customs value
When Only Called “Commission”	The name alone does not determine whether it is a Buying Commission or a Selling Commission	Contracts, actual work performed, whose interest the agent serves	Verify based on substance, not only on the label

Transactions Involving Special Relationships

When the buyer and seller have a special relationship, it may become an issue whether the transaction price can be accepted for customs valuation. The existence of parent-subsidiary relations, affiliated companies, capital ties, officer relationships, or exclusive trading arrangements does not automatically disqualify the transaction price.

The key question is whether the special relationship has influenced the import cargo price. In transactions between related companies, transfer pricing rules, internal pricing, cost accounting, royalties, selling support costs, and advertising expenses may also be relevant.

In practice, it is important to organize the price determination method, comparable prices, contracts, transfer pricing documentation, internal price lists, and similar materials.

How to Confirm That Special Relationships Do Not Affect the Price

Even if a special relationship exists, if it can be demonstrated that the transaction price is formed similarly to an arm’s length price, valuation using Method 1 may be considered.

In practice, for identical or similar goods, prices sold to unrelated buyers, transaction prices of identical or similar goods, domestic selling prices, the seller’s price lists, pricing rules, profit margins, and transfer pricing documents are checked.

Verification Method	Content to Confirm	Reference Materials	Points to Note
Comparison with Prices to Unrelated Buyers	Compare the price at which the same seller sells to buyers without special relationships	Price lists, sales contracts, export invoices, transaction terms documentation	Adjust for differences in quantity, timing, transaction terms, and shipping terms
Comparison with Identical or Similar Goods	Compare import prices of identical or similar goods	Past customs declarations, internal pricing data, market price data	Consider product specifications, quality, quantity, brand, and contract term differences
Checking Pricing Methods	Review cost-plus methods, resale prices, profit margins, and internal price lists	Transfer pricing documents, costing data, internal price lists, contracts	Transfer pricing documents for tax purposes may not directly explain customs valuation
Test Value-Type Comparison	Confirm whether the price approximates values used for customs valuation	Prices for identical goods, similar goods, domestic selling prices, manufacturing cost data	Objective data is required to demonstrate price validity beyond internal explanations

Discounts, Rebates, and Offsets

In import transactions, discounts, rebates, claim offsets, selling incentives, and subsequent price adjustments may occur. Whether these can be reflected in the customs value depends on the timing, conditions, supporting documents, and their relation to the import transaction.

For discounts in particular, it is important not only that the invoice amount is reduced, but that the discount is genuine, agreed upon as a condition of the import transaction, finalized by the time of import declaration, and reflected in the actual paid or payable price.

Defective goods claims or compensation amounts identified after import declaration may not be immediately deductible from the customs value. Also, when the buyer offsets claims against the seller with the cargo payment, the approach to determining the actual paid or payable price should be carefully considered.

Item	Points to Confirm for Customs Valuation	Documents to Check	Practical Notes
Quantity Discount	Is it finalized by import declaration and reflected in the actual payment?	Sales contract, price lists, invoice, payment details	Distinguish between planned future discounts and already finalized discounts
Promotional Discount	Is it a genuine discount agreed as a term of the import transaction?	Campaign terms, contracts, credit notes	Do not confuse with selling incentives or compensation from separate transactions
Rebate	Is it directly reflected in the import cargo price or contingent on later sales performance?	Rebate agreements, calculation details, payment terms	Confirm carefully if not finalized at the time of import declaration
Claim Offset	Is the price adjustment for the current imported cargo, or compensation or offset related to past shipments?	Claim documents, offset agreements, lists of applicable cargo	Claims from past shipments may not be automatically deductible from the current cargo price
Subsequent Price Adjustment	Is it based on a price adjustment clause or due to other post-import circumstances?	Price adjustment clauses, contracts, adjustment notices, payment details	May require an amended declaration or request for reassessment

Inspection Costs and Quality Verification Expenses

For imported cargo, costs may arise for pre-shipment inspections, quality inspections, third-party inspections, factory inspections, and similar work. Whether these inspection costs are included in the customs value depends on who the inspection is conducted for and how it relates to the terms of sale for the imported goods.

There may be differences in valuation between inspections conducted voluntarily by the buyer for their own quality verification and inspections that the seller is contractually required to bear but which the buyer pays for on the seller’s behalf. The mere description of the inspection costs is not sufficient to determine this.

In practice, it is necessary to review the inspection contract, inspection report, invoicing documents, sales contract, the party responsible for payment, and whether the inspection results affect delivery terms.

Re-importation After Repair

When machinery, parts, or equipment exported from Japan are repaired overseas and then re-imported into Japan, the calculation of the customs value may differ from standard import transactions.

For paid repairs, it is necessary to confirm not only the repair costs but also the treatment of the value of the exported goods themselves and freight charges. Even in cases of free repair, the customs value does not necessarily become zero.

It is important to verify the value of the goods before repair, the nature of the repair, whether it is a warranty repair, the condition at the time of export, the condition at re-importation, and freight and insurance charges. In practice, repair contracts, repair details, warranty certificates, export permits, re-import invoices, and freight breakdowns are organized accordingly.

Mail-Order Sales and Personal Imports

Customs valuation is also an important issue for mail-order sales and personal imports. For goods imported for personal use, simplified procedures separate from commercial imports may apply, but this does not mean all such imports are exempt from duties.

In practice, key applicable systems to check include the exemption scheme for low-value imports and the simplified tariff rate system for low-value imports. These address cases where the customs value is below a certain threshold for exemption or where simplified tariff rates apply to a limited range of low-value goods.

For goods intended for personal use, valuation may be calculated by applying a fixed percentage to the overseas retail price. Conversely, goods imported for resale, business use, shipments addressed to companies, or goods imported repeatedly on a continuing basis may not qualify for the simplified treatment for personal-use goods.

Elements such as product price, freight charges, insurance fees, discounts, loyalty point usage, and whether the item is marked as a gift can be relevant for valuation assessment. It should not be assumed that personal imports automatically exempt the importer from customs valuation considerations. When freight forwarders or customs brokers handle the goods as commercial cargo, it is necessary to confirm whether the goods are for personal use or for resale.

Cases When a Customs Valuation Declaration Is Required

In import declarations, a customs valuation declaration may be required to explain the calculation method of the customs value. For example, when factors such as royalties, free supplies, special relationships, subsequent price adjustments, or blanket contracts are involved in addition to the invoice price, a valuation declaration becomes an issue.

The customs valuation declaration organizes the calculation method of the customs value, including add-on elements, deductible elements, and transactional relationships. Omitting the valuation declaration when it is required can lead to issues during customs review or subsequent audits.

In practice, the customs broker and importer should share transaction details early on to confirm whether a valuation declaration is necessary.

Comprehensive Valuation Declaration

When import transactions with the same content are conducted continuously, a comprehensive valuation declaration may be available. This system allows the importer to declare the method of calculating the customs value in advance, prior to individual import declarations.

Within the applicable period, the importer may be allowed to omit the valuation declaration for each tax payment submission. However, a comprehensive valuation declaration does not represent the customs authority’s official stance on customs valuation treatment.

If the importer needs to confirm the customs authority’s position on customs valuation matters in advance, using the written prior ruling system is necessary.

Advance Rulings on Customs Valuation

When determining customs valuation is challenging, an importer may use the advance ruling system, which provides a written response. An advance ruling involves consulting customs before import to receive guidance on how valuation should be handled.

While oral consultations are also possible, they do not carry the same weight in import declaration examinations as written rulings. It is worth considering an advance ruling especially in cases of continued imports, high-value goods, transactions between related companies, royalties, free-of-charge items, mold costs, and similar situations.

To use the advance ruling system, the importer needs to organize and submit documentation such as contracts, transaction diagrams, payment details, add-on factors, and their relationship to the imported goods.

Comparison Table

Comparison Item	Often Included in Customs Value	May Be Excluded from Customs Value	Practical Judgment Points
Freight and Insurance	Freight and insurance charges up to the port of import	Domestic distribution and storage costs after import	Can costs up to the import port be separated from post-import costs?
Commissions	Selling Commission	Buying Commission	For whom is the agent acting?
Royalties	Royalties paid in relation to imported goods as a condition of sale	Costs related to domestic selling activities not directly connected to the imported goods	Is payment contractually required to purchase the goods?
Dies and Free Supplied Items	Dies, parts, and design materials used to produce the imported goods	General development costs unrelated to imported goods	Confirm target products, allocation method, and supplied value
Discounts	If the genuine discounted price is fixed by the time of import declaration	Offsetting claims for other goods arising after import	Is the discount agreed as part of the import transaction conditions?
Inspection Costs	Inspection costs borne by the buyer as a condition of sale	Voluntary in-house quality checks by the buyer	Whose inspection is it, and is it related to the conditions of sale?

Common Practical Issues

Case	Potential Issues	Documents to Verify	Practical Measures
Separate payment of royalties	Even if the invoice shows only the product price, addition to the customs value could be an issue	License agreement, invoices, payment terms, relation to imported goods	Confirm whether payment is related to imported goods and is part of the conditions of sale
Free provision of molds	Mold costs may be excluded from the invoice price, potentially understating the customs value	Mold contracts, provision details, target products, allocation methods	Clarify how mold costs are allocated to import quantities
Low transfer pricing between related companies	Whether special relationships influence pricing becomes an issue	Transfer pricing documentation, comparable prices, price lists, contracts	Organize comparison data with prices for unrelated parties and similar or identical goods
Discounts or rebates	Whether the post-discount price can be used as the customs value is an issue	Discount agreements, price lists, invoices, credit notes	Confirm the discount is genuine and finalized by the time of declaration
Offsetting claims	Past cargo claims cannot always be automatically deducted from the current cargo's value	Offset agreement, claim documents, list of subject cargo, payment details	Delineate whether price adjustments apply to the current import or are offsets of separate claims
Repairs followed by re-import	Repair costs alone may not suffice to determine customs value	Repair contracts, repair details, warranties, export permits, re-import invoices	Check pre-repair cargo value, warranty terms, freight, and insurance premiums
Use of comprehensive insurance policies	Insurance premiums are not itemized for each individual cargo	Comprehensive insurance contracts, premium calculations, insurance certificates, freight details	Confirm how insurance premiums are reflected in the customs value
Dealing with mail order or personal import	Whether goods are for personal use or resale, and eligibility under low-value import regimes, are issues	Order screen, payment details, use confirmation, distribution address, quantity	Check applicability of low-value import duty exemption or simplified rate regimes

Comparison Table of Scope of Involvement for Freight Forwarders and Customs Brokers

Category	What Can Be Assisted With	What Should Not Be Conclusively Determined	Practical Handling
Invoice Verification	Confirm price, trade terms, and the presence of freight and insurance charges	Concluding that the customs value is fixed based solely on the invoice price	Confirm with the importer whether there are separate contracts or separately paid expenses
Royalty Verification	Confirm license agreements, payees, and payment terms	Assuming it is irrelevant because it is not stated on the invoice	Verify the relationship to the imported goods and whether it is a condition of sale
Verification of Molds and Free Supplied Goods	Confirm the supplied items, value, target products, and allocation method	Explaining that since the items are supplied free, they do not relate to customs value	Confirm whether these were used in the production of the imported goods
Special Relationship Verification	Organize related-party relationships, price determination methods, and comparison materials	Concluding that prices will always be denied because the parties are related	Check with documentation whether special relationships have influenced the price
Discounts and Set-Offs Verification	Confirm discount agreements, credit notes, and set-off agreements	Advising that set-off amounts can automatically be deducted from customs value	Confirm whether these adjustments apply to the current imported goods
Customs Valuation Declaration and Advance Ruling	Clarify the need for customs valuation declarations and advance rulings	Explaining that comprehensive valuation declarations serve as a customs interpretation confirmation system	Consider document-based advance rulings if the importer wants to confirm customs interpretations

Documents to Verify

Document	Purpose of Verification	Relevant Special Cases	Notes
Invoice	Confirm product price, trade terms, discounts, and payment conditions	Actual paid or payable price, discounts, freight and insurance charges	Check for any payments made outside the invoice
Sales Contract / Purchase Order	Verify sales terms, pricing conditions, discount terms, and delivery terms	Discounts, related-party transactions, inspection costs	Confirm agreement on these terms within the import transaction
Freight and Insurance Details	Confirm costs incurred up to the port of import	Freight, insurance charges, CIF pricing	Verify if these costs can be separated from post-import expenses
License Agreement	Confirm payment conditions for royalties and their relation to imported goods	Royalties, license fees	Verify whether payments are made as part of the conditions of sale
Tooling Agreement / Free Supply Details	Confirm value of supplied items, applicable products, and allocation method	Tooling costs, free supplies	Maintain evidence for allocation basis to import quantities
Buying Agency Contract / Selling Agency Contract	Verify the nature of commissions	Buying Commission, Selling Commission	Confirm on whose behalf the agent is acting
Transfer Pricing Documentation / Price Lists	Confirm the reasonableness of prices between related companies	Related-party transactions, intra-group trade	Check if usable as explanatory materials for customs valuation
Credit Notes / Offset Agreements	Verify the basis for discounts, rebates, or claim offsets	Discounts, offsets, post-transaction adjustments	Distinguish whether price adjustments apply to the current shipment or offset past shipments
Repair Contracts / Warranty Certificates	Confirm repair details, warranty coverage, and whether repairs are chargeable or free of charge	Re-importation after repair	Also check the value before repair, freight charges, and insurance premiums
Valuation Declaration / Comprehensive Valuation Declaration / Advance Ruling Response	Confirm the method of calculating customs value and the explanation to customs	Valuation declarations, comprehensive valuation declarations, advance rulings	Do not confuse the roles of comprehensive declarations and advance rulings

Example 1: Cases Where Royalties Are Paid Separately

Importers sometimes bring in branded products from overseas manufacturers and pay brand royalties under separate agreements. If these royalties are related to the imported goods and are paid as a condition of sale, their inclusion in the customs value could be an issue.

Just because the invoice only shows the price of the goods does not necessarily mean the royalties can be ignored. Importers should share the licensing agreements, payment terms, and the connection to the imported goods with their customs broker.

In this case, it should have been confirmed whether the royalties are for brand usage rights, expenses related only to domestic sales activities, or whether payment of royalties is required to purchase the goods themselves.

Example 2: Case of Providing Molds Free of Charge

A Japanese importer may provide molds free of charge to an overseas factory, which uses those molds to manufacture products that are then imported. In such cases, the issue arises whether the cost of the molds should be added to the customs value and how to allocate this cost to the import quantities.

If the mold cost is not included in the invoice price, there is a risk of under-declaring the customs value. It is important to clarify the mold cost, timing of provision, targeted products, import quantities, amortization method, and allocation method.

In this scenario, it would be advisable to organize the mold agreement and expected import quantities before the initial import, and consider a comprehensive valuation declaration or advance ruling where necessary.

Example 3: Cases of Low Prices in Transactions Between Affiliated Companies

When a Japanese parent company imports goods from its overseas subsidiary, the transfer price between affiliated companies may be set lower than the usual market price.

Having a special relationship alone does not automatically lead to denial of the declared transaction price. The key issue is whether the relationship affects the price. It is necessary to verify the pricing method, transfer pricing documentation, comparable prices, royalties, and selling support expenses.

In this case, in addition to transfer pricing data for tax purposes, it would be advisable to prepare documentation for customs valuation, such as prices of identical or similar goods, prices offered to unrelated parties, and domestic selling prices for comparison.

Example 4: Case of Re-importation After Repair

There are cases where machinery exported from Japan is repaired overseas and then returned to Japan. Even for paid repairs, it is not sufficient to consider only the repair costs.

Even if the repair is free of charge, the customs value may not be zero. It is necessary to verify the value of the goods before repair, the details of the repair, warranty conditions, the condition at the time of export, the condition at re-importation, as well as freight and insurance charges.

In this case, export permits, repair details, warranty terms, re-import invoices, freight details, and insurance charge statements should have been organized and declared accordingly.

Example 5: Case of Deducting Claim Offsets from the Customs Value

Importers may offset a certain amount from the current cargo payment due to past defective product claims. However, this offset amount cannot always be immediately deducted from the customs value of the current imported cargo.

It is necessary to confirm which shipment the claim relates to, the basis for the offset, and whether it represents a discount on the current import price itself or settlement of a separate claim.

In such cases, the credit note, offset agreement, relationship to the relevant cargo, and payment details should be reviewed to determine how the actual paid or payable price of the current imported cargo should be recognized.

Common Misunderstandings

Common Misunderstanding	Actual Concept	Practical Caution
The customs value is determined solely by the invoice price	It is necessary to check payments, additive elements, and deductible elements outside the invoice	Confirm contract documents, payment details, and separate agreements
Royalty fees are not product costs and therefore irrelevant	If royalties are paid in relation to the imported goods as a condition of sale, their inclusion may be an issue	Verify the relationship between the license agreement and the imported goods
Free provision of molds is irrelevant to the customs value because they are free of charge	If molds are used in the production of imported goods, including mold costs may be required	Confirm provided value, applicable products, and cost allocation method
Buying Commission and Selling Commission can be treated the same way	Buying Commission and Selling Commission may be treated differently for customs value calculation	Check on whose behalf the agent is acting
Related-party transactions always have their prices rejected	Having a special relationship alone does not automatically lead to rejection; the impact on price is the key issue	Organize comparable prices and price determination methods
Discounts can always be deducted from the customs value	It is important that the discount is genuine, agreed as an import transaction condition, and finalized by the time of declaration	Check discount agreements, price lists, and payment details
Counterclaims can automatically be deducted from the current customs value	Offsetting claims from past shipments does not necessarily adjust the current shipment’s value	Confirm the applicable cargo and basis for offsetting
Submitting a comprehensive valuation declaration means the customs position is confirmed	A comprehensive valuation declaration is a simplified valuation declaration system, not a procedure for confirming customs’ position	If the importer wants customs’ view, consider obtaining a written advance ruling

Freight Forwarder's Decision Checklist

Checkpoint	Contact Party	Items to Confirm	Actions if Issues Arise
At Order Acceptance	Importer, cargo owner, sales representative	Trade terms, invoice price, freight and insurance charges, presence of separate contracts	Check whether any costs affect the customs value
Upon Receiving Customs Documents	Importer, customs broker	Invoice, packing list, B/L, AWB, freight details, insurance details	Verify cost breakdown before declaration if unclear
When Confirming Royalties	Importer, legal department, accounting, customs broker	License agreements, payment recipients, payment terms, relation to imported goods	Determine if addition is necessary; consider advance ruling if needed
When Confirming Molds or Free Supplied Items	Importer, manufacturer, accounting, customs broker	Items provided, values, applicable products, allocation methods, import quantities	Clarify method of addition and basis for allocation
When Confirming Special Relationships	Importer, overseas affiliates, accounting, customs broker	Equity relationships, pricing methods, comparable prices, transfer pricing documentation	Check whether special relationships affect pricing
When Confirming Discounts or Offsets	Importer, accounting, overseas shipper, customs broker	Discount conditions, confirmation by declaration time, credit notes, set-off agreements	Clarify whether the issue is a genuine discount or offset of separate claims
Upon Re-importation After Repair	Importer, repairer, customs broker	Repair details, chargeable or free of charge, warranty terms, export permits, re-import invoice	Confirm pre-repair value, repair costs, freight and insurance charges
At Customs Valuation Declaration	Importer, customs broker, customs officials	Valuation declaration form, comprehensive valuation declaration, need for advance ruling	Distinguish system objectives and prepare required documents
At Start of Continuous Imports	Importer, customs broker, accounting, legal department	Transaction scheme, additive elements, comprehensive valuation declaration, need for advance ruling	Document the basis for customs value before the first import
During Post-Import Investigations	Importer, customs broker, accounting, legal department, experts if needed	Past declarations, contracts, payment records, valuation declarations, missing additions	Consider amended declarations, additional tax payments, and preventive measures

Relation with Marine Cargo Insurance

Although customs valuation and marine cargo insurance are separate systems, they intersect in practice. Insurance premiums up to the port of import can become an additive element in the customs value.

There are also situations where it is necessary to verify whether the CIF price, insurance amount, invoice price, freight charges, and insurance premiums are consistent. When using blanket insurance contracts, how the insurance premium for each individual cargo is calculated and reflected in the customs value can be an issue.

If a cargo incident occurs before importation, the valuation, reduction, disposal, return of damaged goods, and the relationship with insurance claims should also be checked.

Practical Points to Note

When determining the customs value, relying solely on the invoice price may lead to omitted additions or valuation errors. Royalties, free supplied goods, mold costs, inspection fees, special relationships, and discounts or offsets are common issues that may come under scrutiny in later audits.

The comprehensive valuation declaration system aims to simplify the valuation declaration process and is not a mechanism for obtaining advance approval of customs valuation treatment. If the importer wants to confirm how customs valuation will be handled in advance, the formal written advance ruling system should be used.

Importers should not provide customs brokers with only the invoice. They should share the full scope of costs, contracts, and payment relationships involved in the transaction. Freight forwarders and customs brokers need to focus not only on declaration speed but also on retaining clear evidence to support the declared customs value.

Summary

Customs valuation is a key element for calculating customs duties and consumption tax on imported cargo.

While the customs value is usually based on the transaction price in normal imports, in practice there are complex special cases that require careful judgment, such as royalties, free-of-charge goods, mold costs, special relationships, re-imports after repair, discounts and offsets, mail-order sales, and personal imports.

This article focuses not on the basic terms of customs valuation but on how to practically verify these special cases. Importers, freight forwarders, and customs brokers should organize the customs value by reviewing not only the invoice price but also contracts, payment details, royalty agreements, mold costs, insurance premiums, freight charges, valuation declarations, and advance rulings as part of a comprehensive approach.