Professional money laundering is the laundering of other people's criminal proceeds as a business, carried out for a fee or commission by specialists who usually play no part in the crime that generated the money. The Financial Action Task Force describes professional money launderers (PMLs) as individuals, organisations or networks that offer this service to criminal clients, often to several clients at once and across borders.
The idea separates the launderer from the offender. In self-laundering, a drug trafficker or fraudster cleans their own money; in professional laundering, they outsource the job. The concept sits within the broader field of money laundering and overlaps with, but is narrower than, the "gatekeeper" professions such as lawyers and accountants, who may be complicit, negligent or simply misused.
Professional money laundering in plain terms
A criminal gang that earns large sums in cash faces a practical problem: it cannot spend or invest the money openly without attracting questions. Rather than solve that problem itself, it can hire someone who specialises in it, much as a company hires an outside accountant instead of doing its own books.
The professional takes the dirty money, runs it through accounts, companies and transactions that look ordinary, and hands it back somewhere else, minus a fee. The client does not need to know how it was done, and the launderer does not need to know exactly where the money came from. That division of labour is what makes the arrangement efficient for criminals and difficult for investigators.
The FATF report
In July 2018 the FATF published a report titled Professional Money Laundering, drawing on case studies from its members. It found that PMLs are a significant threat because they serve many criminal groups at once, specialise in defeating anti-money laundering controls and are rarely the focus of investigations, which tend to target the underlying crime. The report grouped PMLs into three forms:
- Individual professional money launderers. Single specialists who offer services directly or act as a link between clients and other providers.
- Professional money laundering organisations. Structured groups with a clear hierarchy, in which members take responsibility for distinct parts of the process.
- Professional money laundering networks. Looser collections of associates, sometimes in several countries, who cooperate on particular schemes and can be reconfigured as needed.
It also described the functions such a business needs, including leadership, recruiting and introducing clients, managing the infrastructure of companies and accounts, producing documents, and collecting and transmitting funds.
Methods and services
Professional launderers usually combine several techniques that move funds through the money laundering stages of placement, layering and integration:
- Cash collection and transport. Networks pick up cash from clients and move it, sometimes using a cash courier to carry it across borders.
- Informal value transfer. Brokers operating hawala, hundi or similar informal value transfer systems deliver money abroad without moving it through banks, settling their positions later.
- Trade-based schemes. Trade-based money laundering disguises transfers as payment for goods, often through over-invoicing and under-invoicing.
- Corporate vehicles. A shell company or chain of companies, with nominees standing in for the ultimate beneficial owner, opens accounts and issues invoices.
- Account networks. Bank accounts controlled through a mule account or straw owner receive and pass on funds in small, frequent amounts.
- Crypto-assets. Some networks convert proceeds into virtual assets and use exchanges or a crypto mixer to obscure the trail.
A well-known long-running example is the black market peso exchange, in which brokers buy drug dollars in the United States and pay out pesos in Colombia, offsetting the two sides through importers who need dollars to buy goods.
Detection and enforcement
Professional launderers are hard to catch because each transaction may look routine and the proceeds of many clients are mixed. Investigators increasingly treat the laundering network as a target in its own right rather than as a by-product of a drugs or fraud case. Useful tools include financial intelligence from suspicious activity reports, analysis of links between accounts and companies, beneficial ownership registers, and cooperation between countries through financial intelligence units.
The FATF recommends that national risk assessments consider professional laundering explicitly and that authorities follow the money beyond the immediate offender. In August 2025 the US Financial Crimes Enforcement Network issued an advisory on Chinese money laundering networks, which it said were laundering proceeds for Mexico-based drug cartels, an example of a professional service operating between unrelated criminal groups.
Role of banks and gatekeepers
Banks, payment firms and other obliged entities are the main point where professional laundering can be noticed. Warning signs include customers whose activity does not match their stated business, many accounts sharing addresses or directors, rapid movement of funds in and out with no clear purpose, and trade payments to parties unconnected with the goods. Lawyers, accountants and company formation agents can be exploited to set up structures, which is why FATF standards extend customer due diligence duties to these professions when they handle money or create companies.