Last reviewed July 12, 2026 · 9 min read · Written for compliance and risk professionals · By the WhoWiki editorial team
Key takeaway: money laundering hides the criminal origin of funds in three stages, and regulated firms are legally required to detect and report it.
Money laundering is the process of making money from crime look like it came from a legal source. Criminals move dirty funds through banks, businesses, and assets in three stages, placement, layering, and integration, so the money can be spent without drawing attention.
Key takeaways
- Money laundering disguises the criminal origin of money so it can be used freely.
- It runs in three stages: placement, layering, and integration.
- The UNODC estimates $800 billion to $2 trillion is laundered every year, 2 to 5 percent of global GDP.
- Common methods include splitting cash deposits, shell companies, trade schemes, and real estate.
- Regulated firms must verify customers, monitor transactions, and file suspicious activity reports.
- Under 1 percent of laundered funds are ever seized, so prevention beats recovery.
On this page
What it isThe three stagesMethods and examplesLaws and penaltiesHow firms detect itVs fraud and TFFAQsRead more
$800B to $2T
Laundered globally each year (2 to 5 percent of global GDP)
Source: UNODC
Under 1%
Of illicit flows are seized or frozen
Source: UNODC, 2011
~$300B
Laundered in the United States each year
Source: US Department of the Treasury
What is money laundering?
Money laundering is how criminals turn illegal profits into money that looks clean. The goal is simple: spend or invest the proceeds of crime without a bank, a regulator, or the police asking where it came from.
The crime that produces the dirty money is the predicate offense. Drug trafficking, fraud, corruption, and human trafficking are common ones. Laundering is a separate offense stacked on top of that first crime.
Most of it never gets caught. The UNODC estimates that under 1 percent of laundered money is seized (UNODC, 2011). Read more: the three stages of money laundering section below shows how it works step by step.
The three stages of money laundering
Money laundering usually moves through three stages. Each one adds distance between the money and the crime that produced it.
- Placement. Dirty cash enters the financial system, often through deposits, a cash-heavy business, or buying assets. This is the riskiest step, because raw cash is easiest to trace.
- Layering. The money moves through transfers, conversions, and accounts to hide the trail. Cross-border wires, shell companies, and crypto swaps are common here.
- Integration. The funds come back as apparently legal income, such as business revenue, a property sale, or investment returns. By now the money looks legitimate.
| Stage | Example | Warning sign |
|---|---|---|
| Placement | Daily cash deposits just under $10,000 | Frequent small cash deposits |
| Layering | Wires through three countries and two shell firms | Rapid, circular transfers with no purpose |
| Integration | Buying property through an anonymous company | Wealth that does not match known income |
See where your money laundering risk sits
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Common money laundering methods and examples
Money launderers rely on a handful of proven methods. Most involve breaking up cash, hiding who owns an asset, or disguising value as trade or property.
- Structuring (smurfing). Splitting a large sum into many small cash deposits below reporting limits.
- Shell companies. Firms with no real activity used to move and hold funds.
- Trade-based laundering. Over-invoicing or under-invoicing goods to shift value across borders.
- Real estate. Buying property, often through anonymous companies, to absorb large sums.
- Cryptocurrency. Mixers and fast swaps to break the on-chain trail.
- Money mules. People who move funds through their own accounts, sometimes unknowingly.
Use the tool: check a person or company against sanctions, PEP, and adverse media data with Combined AML Screening.
Is money laundering illegal? Laws and penalties
Yes. Money laundering is a criminal offense in almost every country, and penalties include prison and heavy fines.
- United States. The Bank Secrecy Act of 1970 and 18 U.S.C. 1956 and 1957, with FinCEN handling reporting. A single count can carry up to 20 years.
- United Kingdom. The Proceeds of Crime Act 2002, with a maximum of 14 years.
- European Union. The AML directives and the 2024 AML package, which created the AMLA supervisor.
- Global standard. The FATF, founded in 1989, sets the 40 Recommendations most countries follow (FATF).
Firms get penalized too, not just individuals. In 2024, TD Bank agreed to pay about $3 billion to US authorities over Bank Secrecy Act failures, including a record $1.3 billion FinCEN penalty (US Department of Justice, 2024).
Know the warning signs before they cost you
Run through our money laundering red flags checklist to spot suspicious behavior across onboarding and transactions.
How firms detect and report money laundering
Regulated firms catch money laundering with three controls. Each one covers a different gap.
- Know your customer. Verify identity and risk at onboarding, with enhanced due diligence for higher-risk cases.
- Screen names. Check against sanctions, PEP, and adverse media data.
- Monitor and report. Watch for patterns like structuring, then file a suspicious activity report through the MLRO.
Do this: get an indicative read on your exposure with the AML Risk Assessment before your next audit.
Money laundering vs fraud and terrorist financing
Money laundering, fraud, and terrorist financing overlap but are separate. Knowing the difference helps you file the right report.
- Fraud is a way to steal money. Laundering is what happens to that money afterward, which makes fraud a common predicate offense.
- Terrorist financing can use clean money for illegal ends, the reverse of laundering.
Screen a name against global watchlists
Run one search across sanctions, PEP, and adverse media data to check a customer or counterparty before you deal with them.
Frequently asked questions
What is money laundering in simple terms?
Money laundering is making money from crime look like it came from a legal source. Criminals pass dirty funds through banks, businesses, or assets so the money can be spent or invested without questions. It is a separate crime from the one that produced the money, and most countries punish it with prison and fines.
What are the three stages of money laundering?
The three stages are placement, layering, and integration. Placement puts criminal cash into the financial system. Layering moves it through transfers and accounts to hide the trail. Integration returns it as clean-looking income, such as business revenue or a property sale. Each stage adds distance between the money and the original crime.
Why is it called money laundering?
The term describes the idea of washing dirty money until it looks clean. Money from crime is treated as dirty, and running it through legitimate-looking transactions makes it appear lawful. The name has been used since the 20th century and is now the standard legal and regulatory phrase worldwide.
Is money laundering illegal?
Yes. Money laundering is a criminal offense in almost every country. In the United States it falls under the Bank Secrecy Act and 18 U.S.C. 1956 and 1957. In the United Kingdom it sits under the Proceeds of Crime Act 2002. Penalties include long prison terms and large fines for both people and firms.
What is the penalty for money laundering?
Penalties vary by country and by how much was laundered. A single US money laundering count can carry up to 20 years in prison plus fines. The UK sets a maximum of 14 years. Firms that fail to prevent laundering face regulatory fines, which reached about $3 billion for TD Bank in 2024 (US Department of Justice, 2024).
What are examples of money laundering?
Common examples include splitting cash into small deposits to stay under reporting limits, moving funds through shell companies, over-invoicing trade goods, buying real estate through anonymous companies, and using cryptocurrency mixers. Casinos, art sales, and cash-heavy businesses are also used because each can convert cash into a clean-looking receipt.
How is money laundering detected?
Regulated firms detect it through customer due diligence, name screening, and transaction monitoring. Checks at onboarding confirm who a customer is and how risky they are. Monitoring flags unusual patterns such as structuring. When activity looks suspicious, the firm files a suspicious activity report with its financial intelligence unit.
Who investigates money laundering?
Financial intelligence units, police, and specialist agencies investigate money laundering. In the United States, FinCEN receives reports and the FBI and IRS investigate cases. In the United Kingdom, the National Crime Agency leads. Banks and regulated firms support these agencies by filing suspicious activity reports and keeping records.
What is the difference between money laundering and fraud?
Fraud is stealing money through deception. Money laundering is disguising money that has already been obtained illegally, often from fraud. Fraud is frequently the predicate offense that produces the dirty funds, and laundering is the step that follows to make those funds usable.
How much money is laundered each year?
The UNODC estimates 2 to 5 percent of global GDP, or $800 billion to $2 trillion, is laundered each year. The true figure is hard to measure because laundering is hidden by design. The US Department of the Treasury estimates roughly $300 billion is laundered inside the United States annually.
What is a predicate offense?
A predicate offense is the underlying crime that generates illegal proceeds, such as drug trafficking, fraud, corruption, or human trafficking. Money laundering is the act of concealing the proceeds of that offense. A country’s list of predicate offenses sets which crimes can trigger a money laundering charge.
Can money laundering happen without cash?
Yes. Modern laundering often uses digital transfers, cryptocurrency, trade transactions, and company structures rather than physical cash. Value can be moved through invoices, securities, property, or online payments. This makes detection harder and is a reason firms monitor transactions as well as customer identity.
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