Money laundering moves illegally obtained funds through three stages — placement, layering, and integration — each designed to distance the money from its criminal origin until it looks like legitimate income. Understanding each stage is what lets compliance teams know where and how to look for it.
What happens at the placement stage?
Placement is the first stage, where illegal funds — usually physical cash — enter the financial system. Common methods include smurfing (also called structuring) — breaking large amounts into smaller deposits to stay under reporting thresholds — running the cash through a legitimate cash-intensive business such as a restaurant or car wash to blend it with real takings, buying casino chips and cashing them back out, converting cash into liquid assets like gold or high-value watches, or physically smuggling cash across a border into a jurisdiction with weaker controls. This is generally the stage carrying the highest detection risk, since the funds are most exposed to screening, cash-reporting thresholds, and teller scrutiny at this point — which is exactly why it's the stage most AML controls are built around.
What happens at the layering stage?
Layering is where the launderer tries to put distance between themselves and the illegal funds, typically through rapid transfers across multiple accounts and institutions, currency conversion, and changes in asset ownership. More sophisticated layering techniques include routing funds through shell companies with no real business activity, trade-based laundering (deliberately over- or under-invoicing traded goods so value moves across borders disguised as ordinary trade), and — increasingly — converting funds into cryptocurrency and moving them through multiple wallets or mixing services before converting back to cash. The complexity is deliberate: a longer, more convoluted transaction trail spanning several countries and legal entities is harder and slower for investigators to reconstruct, and by the time they do, the trail may cross more jurisdictions than any single regulator has authority over.
What happens at the integration stage?
Integration is the final stage, where laundered funds are reintroduced into the legitimate economy so they can actually be spent or invested without drawing attention. Common methods include buying real estate (particularly in cash-friendly markets with weak beneficial-ownership transparency), investing in legitimate businesses, purchasing luxury goods or art, or a "loan-back" scheme — where the launderer's own laundered money is lent back to them by a shell company they secretly control, arriving with the appearance of a normal business loan. Once funds reach this stage they appear embedded in normal economic activity, which is why integration is often considered the hardest stage to unwind after the fact, and why beneficial-ownership transparency in sectors like real estate has become a specific regulatory focus in its own right.
Are the three stages always separate and sequential?
Not always. The placement-layering-integration model is a useful teaching framework, but FATF itself has noted that modern laundering — particularly through trade-based schemes or cryptocurrency — can compress or blur the stages, sometimes moving value in a way that doesn't cleanly separate "placement" from "layering" at all. A compliance programme built only to catch the textbook three-stage pattern can miss techniques that don't follow it, which is one reason transaction monitoring rules are typically built around behavioural red flags (unusual velocity, structuring patterns, mismatched customer profile) rather than the three-stage model literally.
How can businesses detect laundering across all three stages?
Transaction monitoring is the main control that spans all three stages, flagging patterns — structuring, unusual transfers, rapid movement of funds — that don't match a customer's expected behaviour. Pairing that with solid KYC at onboarding and clear internal reporting for suspicious activity closes off the earliest and easiest point to intervene: placement.
