Human Trafficking and Money Laundering: Why It Is a Financial Crime

Following the Money, Part 1 of 6 · Educational content, not legal advice

Human Trafficking and Money Laundering: Why It Is a Financial Crime

Short answer: Human trafficking is a crime committed for profit, and those profits must be moved, hidden and spent. That is why international standards treat it as a predicate offence to money laundering, and why banks, payment firms and other regulated businesses worldwide are expected to watch for it and report suspicion to their national financial intelligence unit (FIU).

Key takeaways

• The international definition of trafficking has three elements: an act, a means and a purpose of exploitation. Consent is irrelevant where coercive means are used.
• FATF lists trafficking in human beings and migrant smuggling among the designated categories of offences that countries must treat as money-laundering predicates.
• The ILO estimates forced labour generates USD 236 billion in illegal profits a year. This replaces the older USD 150 billion figure still quoted in many articles.
• No single red flag proves trafficking. A red flag starts a review; it does not end one.
• Reporting rules differ by country, but the principle is shared: report suspicion, include context, and do not treat a potential victim as the suspect.

Why this belongs in an AML series

When people think about trafficking, they usually think about its human cost, and rightly so. But every trafficking operation also runs on money. Recruiters are paid, travel is booked, housing is rented, advertisements are bought, wages are withheld and proceeds are moved. Each of those steps can leave a record in a bank, a payment app, a money service business or a crypto exchange.

That is the idea behind “following the money”. Financial institutions rarely see the crime itself. They see a pattern of transactions and behaviour that does not fit. Part 1 builds the foundation: what trafficking is, why it is a financial crime, how big it is, and how suspicion is reported.

This series covers detection and reporting only. We avoid graphic detail, and examples are either sourced from official documents or labelled hypothetical.

What human trafficking is

The international definition

The most widely used definition comes from Article 3 of the United Nations Protocol to Prevent, Suppress and Punish Trafficking in Persons, Especially Women and Children, adopted in 2000 and often called the Palermo Protocol [1]. It breaks trafficking into three elements:

Act

Recruitment, transportation, transfer, harbouring or receipt of a person.

Means

Threat or use of force, coercion, abduction, fraud, deception, abuse of power or of a position of vulnerability, or giving or receiving payments or benefits to obtain control over another person.

Purpose

Exploitation, which includes forced labour, slavery-like practices, sexual exploitation and organ removal.

Two features matter for compliance staff. First, where the coercive means are used, the victim’s apparent consent to the exploitation is irrelevant. Second, for children the means element is not required: recruitment or movement for exploitation is enough [1]. National laws vary in wording, but most are built on this model.

Trafficking is not the same as smuggling

The two terms are often mixed up. FinCEN, the United States financial intelligence unit, draws the line clearly: smuggling concerns bringing people across a border illegally, while trafficking concerns exploiting a person through force, fraud or coercion. Unlike smuggling, trafficking does not require movement. Victims can be exploited inside one country and even in their own home [2]. FATF treats both within a single designated category, but the financial patterns can differ, so analysts should not use the words interchangeably.

Why trafficking is a money-laundering predicate

Money laundering requires proceeds of crime. The underlying crime that generates those proceeds is called a predicate offence. FATF, the global standard setter for anti-money laundering (AML) and counter-terrorist financing, requires countries to criminalise money laundering and to apply it to the widest range of serious offences. At a minimum, a range of offences must be covered in each of the “designated categories of offences” in the FATF glossary. One of those categories is trafficking in human beings and migrant smuggling [3].

The practical result is that a financial institution can be required to report suspicion about funds linked to trafficking even without knowing exactly which offence is involved. The United States states this explicitly: FinCEN notes that human trafficking and associated crimes are “specified unlawful activities” for the crime of money laundering, so transactions involving trafficking proceeds can support criminal charges and asset forfeiture [2]. Other jurisdictions reach the same outcome through their own criminal codes.

The key point for beginners: you do not have to prove trafficking to report. Your role is to identify activity that lacks a clear lawful purpose or does not fit the customer’s profile, document your reasoning and escalate.

How big is the problem? Use the latest figure

Many articles still quote “USD 150 billion a year”. That number comes from the ILO’s 2014 report and was repeated in FATF’s 2018 work and in FinCEN’s 2020 advisory [2][4]. It is now out of date.

In March 2024 the ILO published Profits and Poverty, estimating that forced labour in the private economy generates USD 236 billion in illegal profits a year, an increase of 37% since 2014, based on 2021 data [5]. The ILO reports that forced commercial sexual exploitation produces the largest share of those profits [5].

One caution: the ILO figure measures forced labour, which overlaps with, but is not identical to, human trafficking. When you cite a number, name the source, the year and what it measures.

Three categories, three money patterns

In July 2018 FATF and the Asia/Pacific Group on Money Laundering (APG) published Financial Flows from Human Trafficking, the main global typology study on this subject [4]. It looks at trafficking for sexual exploitation, trafficking for forced labour or slavery, and trafficking for organ removal, and it examines how proceeds are laundered in each [4][6].

FATF–APG trafficking categories and what they mean for financial analysis

The category descriptions above summarise the FATF–APG report as described by FATF and secondary sources [4][6]. Read the report itself before quoting it; Part 2 will go through it in detail.

How the money moves: four typologies from FinCEN

In October 2020 FinCEN published advisory FIN-2020-A008, which supplemented its 2014 guidance. It added 20 financial and behavioural indicators and four typologies observed in Bank Secrecy Act reporting data [2]. These typologies are useful beyond the United States because they describe business models, not laws.

Four trafficking-related laundering typologies identified by FinCEN (2020)

None of these typologies is exotic. They use ordinary products in ways that do not fit the customer, which is why context is the analyst’s best tool.

Reading signals responsibly

FinCEN’s advisory is explicit: no single red flag is a clear indicator of human trafficking, although each can be indicative of it, and institutions should consider factors such as the customer’s previous activity and whether typologies or other red flags are present [2]. FATF–APG similarly stresses that broad money-laundering indicators should be combined with more specific indicators, since no single financial indicator shows trafficking on its own [4][6].

The advisory also highlights an important human point. Many victims have little contact with anyone except their traffickers, and a visit to a bank branch, check-cashing counter or money-transfer office may be the only outside contact they have. For that reason customer-facing staff are asked to notice behaviour as well as data [2]. Examples FinCEN lists include a third party speaking for the customer or controlling their documents and money, or a customer who cannot explain where they live or gives scripted answers [2].

Examples of financial indicators FinCEN lists include transactions inconsistent with the customer’s expected activity, frequent cash deposits with little other payment activity, shared contact details with escort-advertising websites, and frequent use of third-party payment processors that hide the parties to a transaction [2]. We will treat indicators in depth in Part 3. For now, remember the rule: an indicator is a prompt to look closer, never a verdict.

A documented example, described carefully

FinCEN’s advisory includes a real case from United States court records. In December 2018, 36 defendants were found guilty in St. Paul, Minnesota, for roles in an international sex trafficking ring. The organisation used funnel accounts to move cash deposited in cities across the country to launderers who withdrew it elsewhere. Victims were made to open accounts that the organisation then controlled. According to FinCEN, testimony revealed that more than USD 40 million was sent to Thailand by a single launderer, and bulk cash was also physically carried out of the country [2].

Illustrative scenario (hypothetical, not a real case)

Imagine a payment firm whose analyst notices one beneficiary account receiving small weekly payments from several unrelated senders, each with a narration such as “training fee”. On its own, this proves nothing. It could be tuition, a genuine recruitment agency or a community collection. The analyst reviews the beneficiary’s profile, checks whether senders share contact details, compares the activity with the stated business and records the reasoning. If suspicion remains and no lawful explanation emerges, the case goes to the person responsible for reporting, who decides whether to file. The example is invented to show process.

How suspicion is reported

FATF’s framework expects regulated institutions to report suspicion about the proceeds of crime to the national FIU. The detail varies by country. Two examples show how the same principle looks in practice.

Reporting suspected trafficking-related activity: two national examples

FinCEN also encourages information sharing between institutions under section 314(b) of the USA PATRIOT Act where a transaction may involve proceeds of specified unlawful activities, which include trafficking [2]. The Wolfsberg Group, an association of global banks, has also endorsed practical red-flag toolkits on trafficking, in 2017 for European banks and in 2018 for United States banks [8]. We will compare reporting regimes further in Part 5.

In India, trafficking is an offence under Section 143 of the Bharatiya Nyaya Sanhita, 2023 [9]. Which provisions are scheduled offences under the Prevention of Money Laundering Act should be confirmed in the current Schedule before you cite a section [10].

What comes next

Part 2 covers how the money moves, Part 3 red flags, Part 4 KYC and enhanced due diligence, Part 5 suspicious transaction reporting, and Part 6 partnerships, sanctions and forced-labour supply chains. A one-page PDF primer summarising this article is available as a free download from FeelFinanced.

Limitations

This article is general education as of 29 October 2026. It does not cover every country or sector, and laws, thresholds and filing deadlines change. Verify section numbers, deadlines and regulator instructions against current official texts before relying on them. It is not legal advice. Secondary summaries are used for some points and are marked; read the primary documents listed below.

Sources

1. UN Protocol to Prevent, Suppress and Punish Trafficking in Persons, Article 3, as described in UNODC, The Concept of “Harbouring” in the Trafficking in Persons Protocol (2020): respect.international (hosting the UNODC paper). Read the Protocol text on unodc.org or ohchr.org.
2. FinCEN, FIN-2020-A008, Supplemental Advisory on Identifying and Reporting Human Trafficking and Related Activity, 15 October 2020: fincen.gov; and FIN-2014-A008: fincen.gov
3. FATF Recommendation 3 and glossary, designated categories of offences, as described in Commonwealth Secretariat model legislation: thecommonwealth-ilibrary.org. Check the current FATF glossary at fatf-gafi.org.
4. FATF and APG, Financial Flows from Human Trafficking, July 2018: fatf-gafi.org
5. ILO, Profits and Poverty: The economics of forced labour, March 2024: ilo.org
6. Secondary summaries of the FATF–APG report: NGM; KYC360
7. FIU-IND, brochure on obligations of reporting entities: fiuindia.gov.in
8. Wolfsberg Group, endorsement of the USBA toolkit, December 2018: wolfsberg-group.org
9. Bharatiya Nyaya Sanhita, 2023, Section 143 (mirror): indiacode.ecourtsindia.com; confirm on the official India Code site.
10. PMLA scheduled offences (secondary summary): lawmock.com; confirm in the Act text.