Key Takeaways

  • BSA requires financial institutions to report suspicious activities and large cash transactions
  • Currency Transaction Reports (CTRs) required for cash transactions over \$10,000
  • Suspicious Activity Reports (SARs) required when MLOs detect potential fraud or money laundering
  • Customer Identification Program (CIP) requires verifying borrower identity before opening accounts
  • USA PATRIOT Act enhanced BSA requirements after 9/11
  • MLOs play critical role in detecting and reporting suspicious activity during loan origination
Last updated: January 2026

Bank Secrecy Act and Anti-Money Laundering (BSA/AML)

The Bank Secrecy Act (BSA), also known as the Currency and Foreign Transactions Reporting Act, is the primary anti-money laundering (AML) law in the United States. The USA PATRIOT Act significantly expanded BSA requirements after the September 11, 2001 attacks.


Why BSA/AML Matters for MLOs

Mortgage transactions can be used for money laundering — the process of disguising illegally obtained funds as legitimate. MLOs are on the front line for detecting:

  • Fraud (inflated appraisals, straw buyers, false income)
  • Money laundering (criminal proceeds used for down payments)
  • Terrorist financing (funds supporting terrorist activities)

Customer Identification Program (CIP)

The CIP requirement under the USA PATRIOT Act requires financial institutions to:

Required Identity Verification

RequirementDetails
Obtain informationName, date of birth, address, identification number (SSN or Tax ID)
Verify identityUsing documents, non-documentary methods, or combination
Maintain recordsKeep identity verification records for 5 years after account closed
Check OFAC listsScreen against Office of Foreign Assets Control sanctions lists

Acceptable Identification Documents

Primary DocumentsSecondary Methods
Driver's licenseCredit bureau verification
State ID cardDatabase searches
PassportFinancial statement review
Military IDReference from another institution

Currency Transaction Reports (CTR)

Financial institutions must file a CTR with FinCEN for:

CTR RequirementThreshold
Cash transactionsExceeding $10,000 in a single business day
Multiple transactionsCombined cash transactions exceeding $10,000 by same person
Structuring detectionAttempts to break up transactions to avoid $10,000 threshold

CTR Filing Requirements

RequirementDetails
Filing deadlineWithin 15 days of transaction
Filed withFinCEN (Financial Crimes Enforcement Network)
Record retention5 years from date of report
Customer notificationNot required (and may be prohibited)

Suspicious Activity Reports (SAR)

A SAR must be filed when the institution knows, suspects, or has reason to suspect:

SAR Filing Triggers

TriggerDescription
Funds from illegal activityProceeds from crime used in transaction
Transaction to evade reportingStructured to avoid CTR or other reporting
No lawful purposeTransaction has no business or legal purpose
Unusual activityNot the sort of activity expected from customer
Criminal violationTransaction involves violation of law

SAR Thresholds and Filing

ScenarioThreshold
Insider involvementAny amount
Criminal violation identified$5,000 or more
Suspicious activity$5,000 or more ($25,000 for institutions w/o federal regulator)

SAR Filing Requirements

RequirementDetails
Filing deadlineWithin 30 days of detection (60 days if no suspect identified)
Filed withFinCEN
Record retention5 years from date of report
ConfidentialityCannot disclose SAR filing to subject of report

WARNING: It is a federal crime to "tip off" a customer that a SAR has been or will be filed.


Red Flags for MLOs

MLOs should watch for these suspicious activity indicators:

Application Red Flags

Red FlagPotential Issue
Large cash down payment with no clear sourceMoney laundering
Income inconsistent with employmentIncome fraud
Reluctance to provide documentationIdentity fraud
Property flipping with rapid price increasesAppraisal fraud
Straw buyer indicatorsFraud scheme

Transaction Red Flags

Red FlagPotential Issue
Multiple transactions just under $10,000Structuring
Rush to close with minimal documentationFraud
Wire from unknown third partyMoney laundering
Significant last-minute changes to closingFraud
Power of attorney for all transaction activityStraw buyer

MLO Responsibilities

As a mortgage loan originator, you must:

ResponsibilityAction
Know Your CustomerVerify identity, understand transaction purpose
DocumentMaintain records of identity verification
ReportNotify compliance if suspicious activity detected
CooperateSupport institution's AML program
TrainComplete required AML training

Penalties for Violations

Violation TypePenalty
Failure to file CTRUp to $500,000 fine and/or 10 years imprisonment
Failure to file SARCivil money penalties up to $1 million per day
StructuringUp to $500,000 fine and/or 10 years imprisonment
SAR tip-offCriminal penalties, termination, industry bar
Willful violationsEnhanced penalties, potential prosecution
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BSA/AML Requirements: CIP, CTR, and SAR
Test Your Knowledge

At what cash transaction threshold must a Currency Transaction Report (CTR) be filed?

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Test Your Knowledge

An MLO notices a borrower making multiple $9,500 cash deposits over several days. What should the MLO do?

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D
Test Your Knowledge

When a SAR is filed, what must the financial institution do regarding customer notification?

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B
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D