Category: Suspicious Activity Reporting

Report of International Transportation of Currency or Monetary Instruments (CMIR)

Also known as: CMIR, FinCEN Form 105, Form 105

Simply put

The CMIR is a US report used to declare the physical movement of currency or monetary instruments into or out of the United States. Travelers and currency transporters generally must file it when the aggregate amount carried across the border exceeds $10,000. It is filed on FinCEN Form 105 and is associated with US Customs and Border Protection.

Formal definition

The Report of International Transportation of Currency or Monetary Instruments (CMIR), filed on FinCEN Form 105, is a Bank Secrecy Act report required under 31 U.S.C. 5316. It must generally be used to report the physical transportation, mailing, or shipment of currency or other monetary instruments into or out of the United States in an aggregate amount exceeding $10,000. The obligation applies to persons who physically transport, mail, or ship such instruments, as well as to those who cause them to be transported, and to recipients of such instruments from abroad; common carriers of currency, including armored car services, are subject to specific guidance. The CMIR is distinct from the Currency Transaction Report (CTR) and from suspicious activity reporting, as it addresses cross-border movement of value rather than domestic cash transactions or suspicion of illicit activity. Filing is made available to travelers and currency transporters through US Customs and Border Protection. Exact thresholds, filing mechanics, and scope should be confirmed against the applicable BSA regulations and current FinCEN and CBP guidance.

Why it matters

The CMIR addresses a specific vulnerability in the financial system: the physical movement of value across borders, which can occur outside the formal banking channels that generate other Bank Secrecy Act reports such as the Currency Transaction Report. Cash and monetary instruments carried by travelers, mailed, or shipped internationally leave a much thinner paper trail than funds moving through regulated financial institutions, and the CMIR requirement under 31 U.S.C. 5316 is designed to create a record of significant cross-border transportation of currency and monetary instruments exceeding the $10,000 aggregate threshold. This visibility supports law enforcement and customs authorities in detecting and deterring the illicit movement of value, though the filing itself does not establish that any transported funds are connected to wrongdoing.

For compliance and investigative professionals, it is important to distinguish the CMIR from other reports. It is not a suspicious activity report and does not require any suspicion of illicit activity; it is a declaration triggered by the fact and amount of cross-border transportation. It is also distinct from the CTR, which addresses domestic cash transactions at financial institutions rather than the physical movement of value across US borders. Treating these reports as interchangeable can lead to gaps in a compliance program or misinterpretation of the obligations that attach to a given activity.

Because the CMIR obligation attaches to travelers and transporters rather than solely to obliged financial institutions, non-compliance can carry consequences at the border, including the risk of currency seizure. Exact penalty exposure, thresholds, and enforcement outcomes should be confirmed against the applicable BSA regulations and current FinCEN and CBP guidance rather than assumed, as the details are governed by statute and administrative rules that may change.

Who it's relevant to

Travelers carrying currency or monetary instruments

Individuals physically transporting currency or monetary instruments into or out of the United States are a primary category of filers. Where the aggregate amount carried exceeds $10,000, a CMIR generally must be filed, and failure to do so may expose the traveler to consequences at the border, including potential seizure of the funds. The exact scope should be confirmed against current CBP and FinCEN guidance.

Currency transporters and common carriers

Businesses that transport, mail, or ship currency or monetary instruments across US borders, including armored car services and other common carriers of currency, are subject to the CMIR framework. FinCEN has issued specific guidance addressing how the reporting obligation applies to common carriers, which such entities should review to understand their particular responsibilities.

Recipients of currency or monetary instruments from abroad

The obligation generally extends beyond those who physically move value to include persons who cause instruments to be transported and recipients of currency or monetary instruments sent from outside the United States. Such parties should assess whether a CMIR filing obligation attaches to their receipt of cross-border shipments exceeding the applicable threshold.

BSA compliance and audit professionals

Compliance officers and examiners assessing adherence to BSA regulatory requirements need to distinguish CMIR obligations, which concern international shipments of currency or monetary instruments, from CTR and suspicious activity reporting obligations. Examination guidance addresses the reporting of international shipments of currency or monetary instruments as a distinct area of BSA compliance.

Financial crime investigators and customs authorities

Investigators and customs authorities use CMIR data to build visibility into the physical, cross-border movement of value that may fall outside formal banking channels. A CMIR filing records the movement of funds but does not, on its own, establish that transported currency is linked to criminal activity, and it should be treated as one input among many in an investigation.

Inside CMIR

Filing Trigger

The CMIR (FinCEN Form 105) is generally required under the US Bank Secrecy Act and its implementing regulations when a person physically transports, mails, or ships currency or monetary instruments into or out of the United States, or receives such items from outside the United States, above the applicable reporting threshold. The exact threshold amount should be confirmed against the current FinCEN regulation, as it is subject to change.

Currency and Monetary Instruments

The report covers physical currency as well as certain monetary instruments, which may include items such as traveler's checks, and negotiable instruments in bearer form. The precise scope of what qualifies as a monetary instrument for CMIR purposes is defined by regulation and should be verified against the applicable FinCEN rules, as not all financial instruments fall within scope.

Cross-Border Element

A defining feature of the CMIR is the international movement component, transportation across a US border. It is distinct from domestic-only reporting obligations such as the Currency Transaction Report (CTR), which addresses transactions at financial institutions rather than the physical cross-border transport of value.

Filer Identification and Details

The report typically captures identifying information about the person transporting, mailing, or shipping the currency or monetary instruments, as well as details of the shipment or transport itself. The specific data fields are set out on the form and its instructions.

Responsible Party

The obligation can attach to different persons depending on the circumstances, for example, an individual physically carrying the funds versus a party mailing or shipping them, or a recipient of such items from abroad. Determining who must file in a given fact pattern should be assessed against the regulatory instructions.

Common questions

Answers to the questions practitioners most commonly ask about CMIR.

Does filing a CMIR mean I have done something wrong or triggered a criminal investigation?

No. A CMIR (FinCEN Form 105) is a currency-reporting requirement under the US Bank Secrecy Act, not an admission or indication of wrongdoing. Transporting currency or monetary instruments across US borders is lawful; the obligation is simply to report movements above the applicable regulatory threshold. Filing the form satisfies a compliance duty and does not, by itself, establish that any offense has occurred. It is failing to file, filing falsely, or structuring transports to evade the requirement that can carry legal consequences.

Is a CMIR the same thing as a Currency Transaction Report (CTR) or a Suspicious Activity Report (SAR)?

No. These are distinct filings under the US BSA framework. A CMIR reports the physical transportation of currency or monetary instruments into or out of the United States. A CTR is filed by financial institutions for qualifying cash transactions conducted domestically. A SAR is a suspicion-based report filed by obliged entities regarding potentially suspicious activity. A CMIR is generally triggered by the act of cross-border transport above a threshold rather than by suspicion, and it can apply to individuals as well as institutions. Exact thresholds and filing mechanics should be confirmed against the applicable FinCEN rules.

Who is responsible for filing a CMIR?

The reporting obligation generally falls on any person who physically transports, mails, or ships currency or monetary instruments into or out of the United States above the applicable threshold, as well as, in certain circumstances, a person who causes such transport or receives such items from outside the country. This can include individuals, couriers, and businesses, not only financial institutions. Because the precise categories of responsible persons and their duties are defined by the BSA and FinCEN rules, the specific application should be confirmed against the current regulation and CBP guidance.

What counts as a 'monetary instrument' for CMIR purposes, and what falls outside scope?

Under the BSA framework, monetary instruments typically include currency and certain negotiable instruments in bearer form, such as traveler's checks and certain negotiable instruments endorsed without restriction or made out to a fictitious payee. The exact scope, and specific exclusions, are defined by regulation and can differ from what is captured by other BSA reports. Because the classification of particular instruments can be nuanced, the applicable definition should be confirmed against the current FinCEN rules rather than assumed.

When and where is a CMIR filed in the transport process?

A CMIR is generally filed in connection with the physical movement of the reportable items across the US border, and filing is commonly made to or through US Customs and Border Protection (CBP) at the time and place of entry or departure, with the report going to FinCEN. Mailed or shipped items may involve different filing mechanics than items carried by a traveler. Because timing, method, and the exact point of filing depend on the mode of transport and current procedures, these should be confirmed against applicable CBP and FinCEN guidance.

How does the CMIR requirement interact with a firm's broader AML program?

For obliged entities, CMIR filing is one reporting control within a broader risk-based AML program and does not replace CDD, transaction monitoring, or SAR obligations. Cross-border currency movements identified through CMIR processes may inform risk assessment and, where suspicion arises, may separately warrant a SAR. A CMIR is a measure to support transparency and help detect and deter illicit cross-border value movement; it is not a guarantee against financial crime, and it should be integrated with other controls rather than treated as a standalone safeguard.

Common misconceptions

The CMIR is the same as a Currency Transaction Report (CTR).

They are distinct filings. The CMIR concerns the physical transportation, mailing, or shipping of currency or monetary instruments across a US border, whereas a CTR concerns qualifying currency transactions conducted at or through a financial institution. They address different activities and are triggered by different circumstances under the Bank Secrecy Act framework.

Filing a CMIR indicates that the funds are illicit or that a crime has occurred.

A CMIR is a regulatory report of a reportable cross-border movement of value; it is not an allegation of wrongdoing and does not establish that any offense has been committed. It differs in purpose from suspicion-based reporting such as a Suspicious Activity Report and should not be treated as proof of criminality.

The CMIR is a global or universally standardized cross-border currency report.

The CMIR (FinCEN Form 105) is a US Bank Secrecy Act instrument. Other jurisdictions operate their own cross-border cash declaration or disclosure regimes with different forms, thresholds, and scope. Practitioners should not assume the CMIR framework applies outside the United States or that thresholds are consistent across regimes.

Best practices

Confirm the current reporting threshold and the precise definition of covered currency and monetary instruments against the applicable FinCEN regulation and the Form 105 instructions before relying on any specific figure, as thresholds and scope can change.

Clearly distinguish the CMIR obligation from other Bank Secrecy Act filings such as the CTR and Suspicious Activity Report, and map internal procedures so that cross-border physical transport scenarios are routed to the correct filing.

Assess who bears the filing obligation in each fact pattern, transporter, mailer, shipper, or recipient, rather than assuming a single responsible party applies universally.

Treat a CMIR filing as a regulatory report only, and avoid drawing conclusions about criminality; where suspicion arises, evaluate separately whether suspicion-based reporting obligations are triggered.

For movements involving other jurisdictions, verify the corresponding local cross-border cash declaration requirements rather than assuming the US CMIR framework governs, as regimes diverge in form, threshold, and scope.

Retain supporting documentation and maintain records of CMIR filings consistent with applicable recordkeeping requirements, confirming retention periods against the governing regulation.