Structuring

Structuring is the act of intentionally breaking up financial transactions — most often cash deposits or withdrawals — into amounts designed to fall below the threshold that triggers automatic reporting to financial regulators. In the United States, for example, banks must file a Currency Transaction Report for cash transactions over $10,000. A person who deliberately makes multiple deposits of $9,500 to avoid that requirement is committing structuring, which is itself a federal crime irrespective of whether the underlying money is legitimate.

Structuring differs subtly from smurfing in that structuring can be done by a single individual with their own funds, while smurfing typically involves multiple people (smurfs) acting as cash couriers for an organised criminal network. Both are forms of placement in the money laundering cycle, but structuring prosecutions sometimes catch ordinary people — small business owners, for instance — who mistakenly believe that keeping transactions below the threshold protects them from scrutiny.

Financial intelligence units and bank compliance teams look for structuring indicators: repeated deposits in amounts just under reporting thresholds, transactions split across multiple branches or days, and patterns where total monthly cash activity is clearly large but each transaction is small. The detection of structuring often leads investigators to uncover larger criminal enterprises behind it.