Money laundering vs unusual transactions under Dutch law

Money laundering is a crime; an unusual transaction is not. Money laundering (witwassen) is a criminal offence under articles 420bis to 420quater of the Dutch Criminal Code (Wetboek van Strafrecht), while an unusual transaction is a reporting concept from the Money Laundering and Terrorist Financing Prevention Act (Wet ter voorkoming van witwassen en financieren van terrorisme, Wwft). The main exception to keep in mind: an unusual transaction can become the start of a money laundering investigation once the Financial Intelligence Unit (FIU-Nederland) declares it suspicious.

In practice this means two separate questions. Did someone commit a crime with money of criminal origin? That is for the Public Prosecution Service (Openbaar Ministerie) and the criminal courts. Did an institution notice a transaction that meets a legal indicator and report it? That is a duty under the Wwft. A report is not an accusation, and being reported is not an offence.

What is money laundering under Dutch criminal law?

Money laundering is concealing, disguising or dealing with property that comes from a crime, while you know or should suspect that origin. The offence is defined in the Criminal Code, not in the Wwft.

This is the most important point in the whole subject. The two acts have different purposes, apply to different people and lead to different consequences. The Wwft is preventive and administrative. The Criminal Code punishes. An institution can breach the Wwft without any money being laundered. And a person can launder money without any institution breaching the Wwft.

According to article 420bis of the Criminal Code, the offence has two elements. First, there must be property that comes, directly or indirectly, from any crime. Second, the person must have concealed or disguised its origin, or acquired, held, transferred, converted or used it while knowing that origin.

The prosecution does not have to prove which specific crime produced the money. It is enough that the property can only have come from crime. It also does not matter whether the underlying offence took place in the Netherlands or abroad, or whether the accused or someone else committed it. This breadth explains why a money laundering charge is so often added to another prosecution.

Which forms of money laundering does Dutch law recognise?

Dutch law recognises four forms, each with its own maximum sentence. The form depends on how much the person knew and how often they acted.

• Intentional money laundering, article 420bis: a maximum of six years in prison or a fine of the fifth category.
• Habitual money laundering, article 420ter: a maximum of eight years.
• Culpable money laundering, article 420quater: the person should reasonably have suspected the criminal origin, without actually knowing it. The maximum is two years.
• Simple money laundering, article 420bis.1: only acquiring or holding the proceeds of an offence you committed yourself, without any act of concealment. The maximum is six months, and there is a lower maximum for the culpable variant (article 420quater.1).

How much knowledge is required?

For intentional money laundering, the prosecution must prove knowledge, but conditional intent is enough. If you knowingly accepted the considerable chance that the money came from crime, that suffices. For culpable money laundering, it is enough that you should reasonably have suspected the criminal origin. That is why professionals who look away from an obvious problem are at risk.

A conviction is often followed by a separate procedure to confiscate the criminal proceeds. Under article 420quinquies of the Criminal Code, the court can also ban the convicted person from practising the profession in which the offence was committed. Our guide to penalties for money laundering explains the sentencing in more detail. The wider context is set out in our guide to recognising and combating money laundering.

Is money laundering only a problem for organised crime?

No. Money laundering files regularly involve ordinary businesses and private individuals. The well-known three phases of laundering (placement, layering and integration) describe how it is done; they are not a legal test. A court applies the elements of the law, not the model.

Unexplained cash in a business, a loan from a relative that cannot be traced, an invoice for services that were never supplied or a sale at an inflated price can all end up in a criminal file. Money laundering is also closely linked to fraud and other financial crime, because the proceeds of fraud have to go somewhere.

What is an unusual transaction?

An unusual transaction is a transaction, or an intended transaction, that meets one of the indicators set by law. An institution covered by the Wwft must report it to FIU-Nederland, whatever it thinks of the client.

The Wwft entered into force on 1 August 2008. It has since been amended several times to implement European directives. It requires designated institutions to know their clients, to monitor their transactions and to report unusual transactions. Most EU member states work with a duty to report suspicious transactions. The Netherlands deliberately chose a lower threshold: institutions report what is unusual, and FIU-Nederland assesses whether it is suspicious.

There are two kinds of indicators, and every reporting institution must apply both.

What are objective indicators?

Objective indicators are fixed rules that leave no room for judgement. They are listed per type of institution in the annex to the Wwft Implementing Decree 2018 (Uitvoeringsbesluit Wwft 2018). Examples are cash transactions above the threshold that applies to that type of institution, and transactions involving a person or entity established in a state designated as high risk. Transactions that have been reported to the police or the Public Prosecution Service in connection with money laundering or terrorist financing are also covered, as are money transfers above a set amount.

If an objective indicator is met, the transaction must be reported. That applies even if the institution is convinced there is a perfectly good explanation.

What is the subjective indicator?

The subjective indicator is one open standard. A transaction must be reported if the institution has reason to believe it may be connected to money laundering or terrorist financing. This is where professional judgement comes in, and the standard is deliberately broad.

Typical signals are:

• a transaction with no apparent economic or lawful purpose;
• an amount or pattern that does not fit the client profile;
• a structure that is more complex than the business needs;
• payments split into amounts just below a threshold;
• unexplained urgency or secrecy;
• reluctance to provide ordinary documents;
• a sudden change in how an account is used.

A client who refuses to explain where the money comes from is a signal in itself. Our guide to recognising fraud describes the same pattern in a related context.

What is often misunderstood about unusual transactions?

Two things. First, an unusual transaction is not an accusation and does not mean the client did anything wrong; most reports never lead to any action. Second, under article 16 of the Wwft an intended transaction that never goes ahead must also be reported if it meets an indicator. That matters for advisers whose client withdraws as soon as questions are asked.

How does an unusual transaction become a suspicious one?

Only FIU-Nederland can declare a reported transaction suspicious. From that moment, the transaction is available to the police and the Public Prosecution Service and can become the starting point of a criminal investigation.

FIU-Nederland is an independent authority, not a police service. It receives the reports, enriches them with its own data and other sources, and analyses them. The volume is large, and only a small share is declared suspicious. According to the FIU’s annual overview for 2025, it received 3,055,362 reports of unusual transactions that year and declared 92,043 transactions suspicious.

This two-step design is the heart of the system. The reporting institution does not have to decide whether a crime has been committed; it only has to notice and report. FIU-Nederland makes the assessment, and the Public Prosecution Service decides whether to prosecute. A report is therefore several steps away from criminal charges. A client who learns that a report was made is not a suspect for that reason alone.

Is an institution protected when it reports?

Yes, if it reports in good faith. According to article 19 of the Wwft, data supplied in good faith in a report cannot be used to investigate or prosecute the reporting institution for money laundering or terrorist financing. Under article 20, the institution and its staff are not liable for damage the client suffers because of a report made in good faith.

Silence is not protected. An institution that decides not to report because it does not want to lose a client carries the full risk itself.

Can you tell the client that a report was made?

No. Article 23 of the Wwft obliges the institution to keep a report confidential. You may not tell the client or any other third party that a report was made or that an investigation may follow. There are only a few narrow exceptions, for example between institutions within the same group. This creates real difficulties for advisers. The right moment to seek advice is therefore before the report is made, not after the client starts asking questions.

Who has to comply with the Wwft?

The Wwft applies to a long list of financial and non-financial institutions. The list is longer than most businesses expect.

On the financial side, it covers banks, payment institutions, electronic money institutions, insurers, investment firms and fund managers, exchange offices and crypto service providers. It also covers trust offices, which are regulated by their own supervision act as well.

On the non-financial side, it covers civil-law notaries, accountants, tax advisers, administration offices, estate agents and appraisers, and providers of domicile services. Traders in goods fall under the Wwft when they accept cash payments of 10,000 euros or more.

Are lawyers covered by the Wwft?

Partly. A lawyer (advocaat) falls under the Wwft when advising on or assisting with specific transactions. Examples are buying and selling real estate or a business, managing money or securities, setting up or managing companies and setting up structures.

A lawyer does not fall under the reporting duty when determining a client’s legal position or acting in connection with legal proceedings, including advice on starting or avoiding proceedings. That exception protects legal professional privilege. Our overview of the legal professions in the Netherlands explains who does what.

Who supervises compliance?

Supervision is divided by sector:

• De Nederlandsche Bank (DNB): banks, payment institutions, insurers, trust offices and crypto service providers;
• the Dutch Authority for the Financial Markets (Autoriteit Financiële Markten, AFM): investment firms and fund managers;
• the Financial Supervision Office (Bureau Financieel Toezicht, BFT): notaries, accountants and tax advisers;
• Bureau Toezicht Wwft, part of the Tax and Customs Administration: estate agents, appraisers and traders in goods;
• the local deans of the bar (dekens van de Orde van Advocaten): lawyers.

Each supervisor has its own enforcement powers and publishes guidance that its sector is expected to follow. If you are unsure which category you fall into, that question comes first, because the answer determines everything else. It is the first thing a compliance lawyer will establish.

What does the Wwft require from you?

The Wwft requires a risk-based cycle: assess your risks, investigate your clients, monitor the relationship, keep records and report. What you do must be in proportion to the risk, and you must be able to show how you assessed it.

Risk assessment and client investigation

It starts with a written risk assessment of your own business. It covers client types, products and services, delivery channels and countries, and it leads to internal policies, procedures and staff training.

Then comes the client investigation (cliëntenonderzoek). According to articles 3 and 4 of the Wwft, you must complete it before the business relationship starts or the transaction is carried out. You identify the client and anyone acting on their behalf and verify their identity. You also identify the ultimate beneficial owner and take reasonable steps to verify their identity. The beneficial owner is the natural person who ultimately owns or controls the entity. For a company, that normally means an interest of more than 25% of the shares or voting rights, or control by other means. Finally, you establish the purpose and intended nature of the relationship and, where relevant, the source of the funds.

Our note on due diligence investigations and our guide to Dutch corporate law explain how the ownership chain of a BV is normally documented.

When do enhanced or simplified measures apply?

Enhanced measures apply where the risk is higher. Examples are politically exposed persons, complex or unusually large transactions without an obvious economic purpose, clients or funds linked to a high-risk third country, and relationships conducted entirely at a distance. Simplified measures are allowed only where the risk is demonstrably low, and even then some measures remain necessary.

If you cannot complete the client investigation, the rule is strict. Under article 5 of the Wwft, you may not start or continue the relationship and you may not carry out the transaction. You must also consider whether the situation has to be reported. For businesses based abroad this often causes friction, as our note on pitfalls for foreign companies shows.

Monitoring and record keeping

You must monitor the relationship for as long as it lasts. Transactions are checked against what you know about the client, and the client file must be kept up to date. According to article 33 of the Wwft, you keep the records of the client investigation and of transactions for five years after the relationship ends or the transaction is carried out. Where an indicator is met, you report the transaction to FIU-Nederland without delay.

How do you report an unusual transaction?

You report through goAML, the online reporting portal of FIU-Nederland. The report must explain why the transaction is unusual, not only what happened.

An institution registers once, designates the people authorised to report and then submits reports electronically. A report identifies the client and any beneficial owner. It describes the transaction, the amount, the timing and the accounts or instruments involved. Above all, it states the reason why the transaction is considered unusual. That reason makes the report useful; a report that only says an amount was large adds nothing to the analysis.

How quickly must you report?

Without delay. Article 16 of the Wwft requires a report as soon as the unusual character of the transaction becomes known, and supervisors treat structural delays as a breach in their own right.

Keep the underlying documents, keep a record of what you reported and when, and keep the internal assessment that led to your decision. That includes the cases in which you decided not to report. This file is your evidence that the system works, and a supervisor will ask for it. Also note that a report to FIU-Nederland is not the same as filing a police report. The two have different recipients and different consequences.

What happens if you do not comply with the Wwft?

Breaches of the Wwft can lead to administrative sanctions, criminal prosecution and professional consequences. These tracks can run one after the other or at the same time.

Administrative enforcement

The supervisor can give instructions, impose an order subject to a penalty payment (last onder dwangsom) or impose an administrative fine. In serious cases the decision is published. The maximum fine depends on the category of the breach in the Wwft. For the most serious breaches it can be higher than a fixed amount, based on the benefit obtained or on turnover. In practice, publication often does more damage than the fine itself.

Criminal prosecution

Breaches of the core Wwft obligations are economic offences under article 1 of the Economic Offences Act (Wet op de economische delicten). They can be prosecuted against the company and against the individuals who gave the instructions or were in effective control. The Public Prosecution Service has reached large settlements with Dutch banks over structural failures in client investigation and transaction monitoring. It has also made clear that individual directors and compliance officers can be prosecuted.

If an institution did not merely fail to report but actively helped, the case is no longer only a Wwft offence. It becomes money laundering itself, with the higher maximum sentences described above. For directors, this is one of the areas where personal liability of directors is a real risk.

Professional and supervisory consequences

Notaries, accountants, tax advisers and lawyers can also face disciplinary proceedings before their own tribunals, which can suspend or strike them off. Regulated institutions face consequences that last longer than any fine: intensified supervision, conditions on the licence, or a new assessment of whether the directors are fit and proper. A case that starts with a penalty order can end as a licence problem.

What if you are under investigation?

The normal rules of Dutch criminal procedure apply. You have the right to remain silent, the right to consult a lawyer before and during questioning, and the right to see the case file. We explain separately what to do if you are suspected of an offence and how a criminal case in the Netherlands proceeds. Do not reconstruct records afterwards and do not discuss the case with the client whose transaction was reported. Both can turn a defensible position into a new offence.

Where do unusual transactions come up most often?

Four settings often lead to reports: real estate, cash, company structures and crypto or cross-border payments. In each of them, good documents about the source of the funds solve most problems.

Real estate. A purchase financed with money whose origin is not documented, a price far above or below the market, a quick resale or a purchase through a chain of companies all draw attention. The civil-law notary who executes the deed has an independent duty to investigate and report.

Cash. Cash-intensive businesses such as hospitality, car sales, wholesale and construction can be entirely legitimate and still generate reports, simply because the objective indicators are met. The answer is a documented cash administration that explains the turnover, not an argument with the bank.

Company structures. Newly incorporated companies without economic activity, a beneficial owner who is hard to identify, undocumented loans between related parties, or invoices that do not match any delivery are classic subjective indicators.

Crypto and cross-border payments. Here the origin of the funds is often genuinely hard to establish, and supervisors expect more evidence, not less.

What helps if your transaction is questioned?

Documents made at the time of the transaction. A client who can show a sale contract, a bank statement showing where the money came from and a plausible business reason rarely has a problem, whatever the indicators say. A client who cannot will often find that the bank ends the relationship, which it is generally entitled to do, and that the transaction has already been reported. Our complete guide to money laundering in the Netherlands describes the signals in more detail. If a report has already led to questions from an investigator, our note on defence against a money laundering allegation explains what is at stake.

What changes with the new EU anti-money laundering rules?

From 10 July 2027, much of the Wwft will be replaced by a directly applicable EU regulation. A new EU authority, AMLA, will also supervise some institutions directly.

The anti-money laundering package adopted in 2024 consists of a regulation that applies directly in all member states (Regulation (EU) 2024/1624), a sixth anti-money laundering directive and a regulation establishing the Anti-Money Laundering Authority (AMLA). AMLA is based in Frankfurt and started work in 2025. It will directly supervise a selected group of high-risk cross-border institutions and coordinate national supervisors. The regulation applies from 10 July 2027, with some exceptions.

Three changes matter for Dutch practice:

• Much of the detail that is now in the Wwft will be set directly by the EU regulation. National differences shrink, and Dutch guidance will have to be read against the European text.
• The scope widens, for example to more crypto service providers and to traders in luxury goods. Professional football clubs and football agents will follow from 10 July 2029.
• An EU-wide limit of 10,000 euros will apply to cash payments for goods and services by traders, and identification will be required for cash transactions above a lower threshold.

Plan the transition now rather than in 2027. Client files that do not meet the new standard will have to be brought up to date, not simply kept as they are.

What does this mean for you in practice?

For an institution under the Wwft, the main risk is not failing to catch a criminal. It is being unable to show what you did and why.

Write down your risk assessment. Complete the client investigation before you act. Record the reasons for your conclusions, report without delay when an indicator is met, and keep the file for five years. If you have doubts about a transaction, resolve them in writing and on time. A reasoned and documented decision not to report can be defended; the same decision without a record cannot. We regularly review compliance frameworks before a supervisor does.

If your transaction has been reported, remember that a report is not a charge. If questions follow from the bank, a supervisor or an investigator, explain the source and purpose of the funds with documents rather than avoiding contact. If the questions turn into a criminal investigation, Dutch criminal law takes over, and the rules of Dutch law on evidence and procedure determine what happens next.

In summary

• Money laundering is a crime under articles 420bis to 420quater of the Criminal Code, with maximum sentences from six months to eight years.
• An unusual transaction is a transaction that meets an objective or subjective indicator under the Wwft; reporting it is a legal duty, not an accusation.
• Only FIU-Nederland can declare a transaction suspicious; only then can it lead to a criminal investigation.
• Institutions under the Wwft must assess risks, investigate clients, monitor, keep records for five years and report without delay, and may not tell the client about a report.
• From 10 July 2027, the EU anti-money laundering regulation will take over much of the Wwft, including a 10,000 euro cash payment limit.

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