Glossary · Finance & Payments

AML (Anti-Money Laundering)

AML is the set of laws, controls and procedures financial firms use to detect and prevent criminals from disguising illegal money as legitimate funds.

Updated October 6, 2026

AML (Anti-Money Laundering) is the set of laws, regulations and internal controls designed to stop the process of making illegally obtained money appear legitimate. In practice it covers customer checks, transaction monitoring and reporting suspicious activity to authorities.

Why it matters

Banks, payment providers, exchanges and other regulated firms must run AML programmes, and failing to do so can bring penalties. Typical components include customer identification (KYC), screening names against sanctions and watch lists, monitoring transactions for unusual patterns and filing suspicious activity reports. Money laundering is often described in three stages: placement of funds into the system, layering to obscure origin and integration back into the economy. Fintech firms often rely on specialised vendors and rule engines combined with human review, and thresholds and obligations differ across jurisdictions.

Example

Rule:    Flag if an account receives 20+ small deposits
         from different senders in 24 hours and
         withdraws 90% of the total.
Action:  Hold for review, request source-of-funds

An analyst reviews the case and decides whether to clear it or file a report. This rule is a simplified illustration, not a real compliance standard.

Common mistakes

  • Treating AML as only an onboarding check rather than ongoing monitoring.
  • Setting rules so loose or so tight that they hide risk or drown analysts in false alerts.
  • Believing AML and fraud prevention are identical; they overlap but have different goals.

Rules vary by country; this entry is a definition only, not legal advice.

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