Corporate and Business Law (Global) · Fraudulent and criminal behaviour

Money Laundering: Stages, Offences and Reporting Duties

Updated 11 October 2026 · Fact-checked

Money laundering is the process of making money from crime look as if it came from a legitimate source. It has three stages: placement, layering and integration. To answer questions, identify the stage or offence, check knowledge or suspicion, then apply the duty to report and the tipping off rule.

Understand Money Laundering

Money laundering means dealing with the proceeds of crime so that their illegal origin is hidden. Criminals want to spend their money without drawing attention. Laundering lets them do that.

The process is usually described in three stages. Placement is getting the dirty cash into the financial system, for example paying cash into bank accounts in small amounts or buying goods with cash. Layering is moving the money through many transactions to hide its trail, such as transfers between accounts and countries, or buying and selling assets. Integration is bringing the money back into the legitimate economy so it looks clean, for example as a business profit, a loan repayment or property sale proceeds.

Laws on money laundering vary by country, so ACCA tests the common principles found in most systems. These are the main offences, the duty to report and the tipping off rule. The main offences are: concealing or disguising criminal property; arranging, or becoming involved in an arrangement that helps someone else to retain or use criminal property; and acquiring, using or possessing criminal property. Failing to report suspicion and tipping off are also offences in many systems.

Professionals such as accountants and auditors are in a regulated position. They must have procedures to spot and report suspicious activity. The usual duties are customer due diligence, record keeping, staff training and internal reporting. A money laundering reporting officer (MLRO) is a senior person in the firm who receives internal reports from staff. The MLRO decides whether the suspicion is reasonable and, if so, reports it to the national authority. A staff member who reports to the MLRO has normally met their own duty.

Tipping off means telling a person that a report has been made or that an investigation is under way, in a way that may prejudice it. It is an offence because it lets the suspect hide or move assets. Penalties for breaching the rules usually include fines, imprisonment, or both, and regulatory action against the firm or individual.

Key formulas to remember

Three stages of laundering: Placement → Layering → Integration; Placement puts cash into the system, layering hides the trail, integration returns the money as apparently clean funds.
Main offences: Concealing | Arranging | Acquiring, using or possessing criminal property; Each needs a link to criminal property, and usually knowledge or suspicion that the property is criminal.
Reporting duty: Knowledge or suspicion (or reasonable grounds) → report to MLRO → MLRO reports to authority; Exact test varies by jurisdiction. State it in general terms unless the question gives one.
Tipping off: Disclosure that a report or investigation exists + likely to prejudice it = offence; Applies even if the person disclosing was not involved in the laundering.
Firm's compliance duties: Due diligence + record keeping + training + internal reporting procedures; Failure can lead to fines, imprisonment or regulatory sanctions.

How to solve Money Laundering questions

Use this method for scenario questions and for multi-task questions on money laundering.

1Read the facts and spot the criminal property: what money or asset may come from crime?
2Decide which stage is shown: placement, layering or integration. Match the facts to the definition.
3Identify the offence: concealing, arranging, or acquiring, using or possessing. Ask what the person actually did.
4Check the mental element: did the person know or suspect, or have reasonable grounds to suspect?
5Apply the reporting duty: who should be told, normally the MLRO first, and was a report made?
6Check for tipping off: did anyone reveal a report or investigation to the suspect?
7State the consequence: fines, imprisonment, regulatory action. Then give a one-line conclusion.

Quickest way: Stage, offence, report, tip-off

When to use it: Use for Section A style questions and short multi-task items where you have about a minute.

Cash entering the system means placement. Complex transfers mean layering. Apparently legitimate return of funds means integration.
Hiding or disguising means concealing. Helping someone else means arranging. Having or using yourself means acquiring, using or possessing.
Suspicion is enough. Proof of the crime is not needed.
Reporting goes to the MLRO internally. Telling the customer about the report is tipping off.
Eliminate options that say the accountant must prove the crime or must warn the client.

Common mistakes in Money Laundering

Mixing up layering and integration.
Both involve moving money and can look similar in a scenario.
Fix: Layering hides the trail through complexity. Integration is the final step where the money looks legitimate, such as sale proceeds or business income.
Saying an accountant must be certain before reporting.
Students assume that a crime must be proven first.
Fix: Knowledge or suspicion triggers reporting. It is not for the accountant to prove the crime.
Telling the client about a report to be open and fair.
Honesty to clients feels like good practice.
Fix: Disclosing a report or investigation that may prejudice it is tipping off. Report to the MLRO and follow their instructions.
Thinking only the criminal can commit a laundering offence.
Students link laundering only with the person who made the money.
Fix: Anyone who conceals, arranges, or acquires, uses or possesses criminal property with the required mental element can commit an offence.
Forgetting the MLRO's role.
Students jump straight to reporting to the authorities.
Fix: Staff normally report internally to the MLRO, who decides whether to make an external report.
Giving an exact section number or penalty figure from memory.
Students try to add detail to impress.
Fix: Describe penalties in general terms (fines, imprisonment, regulatory action) unless the question supplies the figures.

Worked examples

Example 1

A trader pays $9,000 of cash from illegal sales into several bank accounts. He then transfers the funds through accounts in three countries and finally uses them to buy a flat, which he later sells to a genuine buyer. Identify the three stages.

Show the solution

Paying cash into several accounts puts dirty cash into the financial system. This is placement.
Transferring funds through accounts in three countries hides the trail. This is layering.
Buying and selling the flat gives the money an apparently legitimate source. This is integration.

Answer: Placement: paying cash into the accounts. Layering: the transfers across three countries. Integration: buying and selling the flat so the proceeds appear legitimate.

Example 2

An audit junior suspects that a client's large cash receipts come from crime. She reports her suspicion to the firm's MLRO. The audit manager then tells the client's finance director that a report has been made. Advise on the position of the junior and the manager.

Show the solution

The junior has a suspicion, so a reporting duty arises. She has reported to the MLRO, which is the normal internal route.
By reporting internally she has generally met her own duty. She is not required to prove the crime.
The manager told the finance director that a report has been made. This reveals a report in a way likely to prejudice an investigation.
That is tipping off, which is an offence. The manager risks fines, imprisonment, or both, plus regulatory action.
The manager should have kept the report confidential and taken the MLRO's advice.

Answer: The junior acted correctly by reporting her suspicion to the MLRO. The manager committed the offence of tipping off by disclosing the report to the client and may face fines, imprisonment, or both.

Exam tips

Learn the three stages as a sequence and be able to match each to a short scenario.
In multi-task questions, name the offence and then apply it to the facts. A bare label earns little.
Remember that suspicion is enough to trigger reporting. Proof is not needed.
In objective tests, any option that tells the client about a report is almost always wrong because of tipping off.
State penalties in general terms: fines, imprisonment, or both, and regulatory action.

Practice questions from Fraudulent and criminal behaviour

Money Laundering in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Money Laundering: frequently asked questions

What are the three stages of money laundering?

They are placement, layering and integration. Placement puts illegal cash into the financial system. Layering hides the trail, and integration returns the money as apparently clean funds.

What does a money laundering reporting officer do?

The MLRO receives internal reports of suspicious activity from staff. They assess whether the suspicion is reasonable and, if so, report it to the national authority. They also oversee the firm's anti-laundering procedures.

What is tipping off?

Tipping off is telling someone that a suspicious activity report has been made or that an investigation is under way, in a way that may prejudice it. It is an offence because it lets suspects hide or move assets.

Do I need proof of a crime before reporting?

No. Knowledge or suspicion is enough to trigger the duty to report. It is for the authorities to investigate.