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FinCrime Institute
Category: Money Laundering Typologies

Under-Invoicing

Also known as: Underinvoicing, Under-Invoicing of Imports
Simply put

Under-invoicing is a practice in which the price stated on an invoice is set lower than the actual value of the goods or services being traded. By deliberately understating value, a seller can effectively transfer value to a buyer, since the price paid does not match the true worth of what is exchanged. It can be used to move value across borders or disguise the origins of funds.

Formal definition

Under-invoicing refers to the deliberate misstatement of the price of goods or services on an invoice at a value below their fair market or actual value, creating a discrepancy between the stated invoice value and the true value payable. In a trade-based money laundering (TBML) context, under-invoicing operates as a value-transfer mechanism: pricing goods or services below fair market value allows the seller to transfer value to the buyer/importer, who may realize a gain by disposing of the goods in the local market at their true price. As a typology, under-invoicing is one method among several used to move or disguise value through trade transactions and should be understood as an indicator that may warrant further scrutiny rather than proof of criminal conduct; identifying value discrepancies typically requires comparison against reliable fair market pricing benchmarks. Its treatment and legal characterization may vary by jurisdiction, and specific regulatory obligations should be confirmed against applicable trade, customs, and AML frameworks.

Why it matters

Under-invoicing is significant because it exploits the sheer volume and complexity of international trade to move value across borders in ways that can be difficult to detect. Because trade transactions involve legitimate movements of goods, services, and payments, a mispriced invoice can blend into ordinary commercial activity, allowing value to be transferred from a seller to a buyer without the transfer being obvious on the face of the documentation. In a trade-based money laundering context, this makes under-invoicing a mechanism through which illicit value can be moved or disguised, and it is one of several typologies that AML and trade compliance professionals monitor.

For obliged entities and investigators, the practical challenge is that a discrepancy between an invoice price and the fair market value of goods is an indicator that may warrant further scrutiny rather than proof of criminal conduct. Prices can legitimately vary for many commercial reasons, so identifying meaningful discrepancies typically requires comparison against reliable fair market pricing benchmarks. Treating a single pricing anomaly as conclusive risks both false positives and missed context, which is why under-invoicing is best understood as part of a broader risk-based review of a trade relationship.

Its legal characterization and the specific obligations attached to it may vary by jurisdiction and depend on the interaction of trade, customs, and AML frameworks. Firms should confirm how under-invoicing is treated under the regimes applicable to them, rather than assuming a single, uniform global standard governs its detection or reporting.

Who it's relevant to

Trade Finance and AML Compliance Officers
Professionals responsible for reviewing trade transactions need to understand under-invoicing as a value-transfer typology so they can incorporate price-discrepancy checks into their risk-based controls. This generally involves comparing stated invoice values against fair market pricing benchmarks and escalating anomalies for further scrutiny, while recognizing that a discrepancy is an indicator rather than proof of criminal conduct.
Financial Intelligence Analysts and Investigators
Analysts examining potential trade-based money laundering may encounter under-invoicing as one of several methods used to move or disguise value. Understanding how understated pricing enables value transfer between seller and buyer helps investigators contextualize pricing anomalies within a broader pattern, rather than treating a single discrepancy as conclusive.
Customs and Trade Compliance Professionals
Because under-invoicing involves the misstatement of import or export values, it sits at the intersection of customs, trade, and AML frameworks. The way it is treated and legally characterized may vary by jurisdiction, so these professionals should confirm applicable obligations against the specific trade and customs regimes that govern their activity.

Inside Under-Invoicing

Trade-Based Money Laundering (TBML) Context
Under-invoicing is a technique associated with trade-based money laundering, in which the stated value of goods or services on trade documentation is deliberately understated relative to their fair market value to transfer value between parties across borders.
Value Misstatement Mechanism
The core element is a discrepancy between the invoiced price and the true value of the traded goods. By recording a price lower than the actual worth, the exporter effectively transfers additional value to the importer outside the documented amount.
Directional Value Transfer
Under-invoicing typically moves value from the exporter to the importer, since the importer pays less than the goods are worth and retains the difference, distinguishing it from over-invoicing which generally moves value in the opposite direction.
Trade Documentation Involved
Relevant components generally include commercial invoices, purchase orders, shipping and customs declarations, bills of lading, and payment records, which practitioners may compare to identify inconsistencies between price, quantity, and market value.
Collusion or Manipulation
The scheme may involve collusion between trading counterparties or manipulation of documentation, though a pricing discrepancy alone is not proof of intent and may also reflect legitimate commercial factors.
Relationship to Customs and Tax Evasion
Under-invoicing may also be used to reduce customs duties or taxes payable on imported goods; the same conduct can therefore have implications spanning money laundering, customs, and tax regimes depending on the jurisdiction.

Common questions

Answers to the questions practitioners most commonly ask about Under-Invoicing.

Does an instance of under-invoicing automatically prove money laundering or trade-based money laundering has occurred?
No. Under-invoicing is a pricing discrepancy that may serve as a red flag or indicator, but it is not proof of wrongdoing. A stated invoice value that falls below an apparent market or fair value can arise from legitimate commercial reasons, including bulk discounts, long-term supply agreements, related-party pricing arrangements, distressed sales, quality differences, or ordinary market fluctuation. Treating under-invoicing as an indicator that may warrant further review is an operational risk-management practice; concluding that an offence has occurred is a separate matter requiring investigation and, ultimately, a legal determination. Compliance teams generally document under-invoicing as a factor to assess rather than as a conclusion.
Is under-invoicing the same thing as over-invoicing, just in the opposite direction?
They are related mechanisms within the broader concept of trade mispricing, but they are not interchangeable, and the direction of value transfer differs. Under-invoicing generally understates the value of goods or services relative to their apparent fair value, which can facilitate moving value toward the importer or reducing declared value for purposes such as customs duty. Over-invoicing overstates value, which can facilitate moving value toward the exporter. Because the party who benefits and the customs, tax, and value-transfer implications differ, analysts should distinguish which pattern is present rather than treating the two as a single phenomenon.
How can an analyst identify potential under-invoicing when reviewing trade transactions?
Common operational approaches include comparing the stated unit or contract value against available price references, such as publicly quoted commodity prices, market databases, or historical pricing for comparable goods, while accounting for factors like incoterms, quality, and volume. Analysts may also look for inconsistencies between invoice values and other documentation, such as shipping documents, letters of credit, or declared customs values. These comparisons typically surface discrepancies that warrant further inquiry rather than definitive findings, and results should be interpreted in the context of the specific trade, since legitimate variation in pricing is common.
Which obliged entities are most likely to encounter under-invoicing risk in their transaction monitoring?
Financial institutions that provide trade finance, process trade-related payments, or handle documentary credits are generally most exposed, as they may have visibility into invoice values and related trade documentation. Banks providing open-account trade services may have more limited documentary visibility, which can constrain detection. The scope of any given entity's exposure depends on the products it offers and the documentation it receives; entities that do not touch trade flows may have little direct visibility. Firms should map their exposure to their actual product mix rather than assume uniform relevance.
What documentation is useful when assessing whether a stated invoice value is consistent with fair value?
Useful materials often include the commercial invoice, the underlying contract or purchase order, transport and shipping documents, packing lists, insurance documents, and, where applicable, customs declarations. Cross-referencing these against independent price benchmarks and against the commercial rationale of the parties helps assess consistency. Because legitimate transactions can involve pricing that deviates from a headline market rate, documentation review is intended to support a reasoned assessment of plausibility rather than to confirm or exclude misconduct on its own.
How should a compliance team escalate a suspected under-invoicing case?
Where review of a transaction gives rise to a suspicion that cannot be resolved through further inquiry, the matter is typically escalated internally for consideration of a suspicious activity report or suspicious transaction report under the applicable regime, with the terminology and filing obligations varying by jurisdiction and the responsible authority differing accordingly. Escalation processes generally involve documenting the indicators observed, the analysis performed, and the rationale for the decision reached. The relevant reporting thresholds, timelines, and formats should be confirmed against the obligations that apply to the specific entity and jurisdiction, since these diverge across regimes.

Common misconceptions

Any price discrepancy on an invoice proves under-invoicing and criminal wrongdoing.
A discrepancy between invoiced value and apparent market value is a potential red flag, not proof of laundering. Legitimate factors such as bulk discounts, long-term contract pricing, quality differences, currency timing, and related-party arrangements can explain variances. A single indicator does not establish criminality and should be assessed in context.
Under-invoicing and over-invoicing are essentially the same thing.
Both are TBML value-manipulation techniques, but they generally operate in opposite directions. Under-invoicing understates value and typically transfers value from the exporter to the importer, whereas over-invoicing overstates value and typically transfers value from the importer to the exporter. Treating them interchangeably can lead to mischaracterizing the flow of value.
Detecting under-invoicing is purely a customs matter and not a concern for AML-obliged entities.
While under-invoicing can affect customs duties and taxes, it is also relevant to money laundering risk. Financial institutions and other obliged entities involved in trade finance may need to consider it within their risk-based monitoring, even though they typically see only part of the trade transaction and may not have direct sight of the underlying goods.

Best practices

Compare invoiced prices against available fair market value references for the relevant goods, and document the rationale where discrepancies are identified rather than treating any single variance as conclusive.
Cross-check consistency across trade documents such as invoices, purchase orders, customs declarations, bills of lading, and payment records to identify mismatches in price, quantity, or value.
Apply a risk-based approach that weighs pricing anomalies alongside other contextual factors, and consider legitimate commercial explanations before escalating.
Escalate and, where warranted, file the applicable suspicious activity or suspicious transaction report in line with the reporting regime in your jurisdiction, recognizing that a report reflects suspicion and does not establish wrongdoing.
Recognize the limits of your visibility in trade finance, where an institution may see only part of a transaction, and seek additional information or documentation where feasible to support assessment.
Maintain clear records of the analysis and decisions taken, and confirm specific thresholds, obligations, and reporting requirements against the regulations applicable to your entity and jurisdiction.