Report of international transportation of currency or monetary instruments (CMIR, FinCEN 105)

The facts

Who files

Each person who physically transports, mails or ships the currency or monetary instruments, and each person in the United States who receives currency or monetary instruments transported, mailed or shipped from abroad. This includes common carriers of currency, such as armored car services, acting in the course of business. Source

How often

Filed per qualifying movement of currency or monetary instruments across the US border. Source

Deadline

For currency accompanying a traveller: filed at the time of entry into, or departure, mailing or shipping from, the United States, with US Customs and Border Protection (CBP), unless CBP specifies otherwise. For currency not accompanying a person (received from abroad): filed within 15 days of receipt. Source

Format

Web form, PDF. Filed through CBP's Electronic CMIR system, or on an accessible fillable PDF version of the form; reports may also be filed by mail to CBP in some circumstances. Source

How it is filed

Filing routes recorded for the FinCEN: BSA E-Filing System; CBP Electronic CMIR; BOI E-Filing System. See how firms file with the FinCEN.

Status

In force

Legal basis

• 31 CFR 1010.340 and 1010.306(b) (reports of transportation of currency or monetary instruments)

Group

Trade and business cash reporting

Templates (0)

The library lists no templates for this return.

A single form; FinCEN has proposed splitting it into a traveller's Form 105 and a shipper's Form 106, not yet confirmed in force on the pages read. Source

Validation rules

No published validation rules were found for this return. No standalone, published catalogue of edit checks was found on the pages read. Source

Public data

No published data from this return was found. CMIR data was not found published on the pages read. Source

Official documents (3)

The FinCEN's own files, with the size and SHA-256 fingerprint of each as downloaded on 13 November 2026, so anyone can tell whether a copy is the same version.

• CMIR guidance for common carriers of currency, including armored car services (FIN-2014-G002)

  Guidance · HTML · 38.4 KB · 1 August 2014

  Confirms the CMIR (Form 105) threshold (an aggregate amount exceeding $10,000) and that the duty to report falls on the person who transports, mails or ships currency, and on the person who receives it from abroad.

• Bank Secrecy Act Filing Information

  List of returns · HTML · 38.8 KB

  Names the current BSA report numbers relied on here: FinCEN SAR (Form 111), FinCEN CTR (Form 112), FinCEN DOEP (Form 110), FinCEN RMSB (Form 107), FBAR (Form 114/114a), FinCEN 8300, and CMIR (Form 105, filed through CBP's Electronic CMIR).

• 31 CFR Part 1010, General Provisions (2025 annual edition)

  Legal text · PDF · 689.1 KB · 1 January 2025

  Section 1010.306 sets the filing deadlines relied on here: 15 days after the transaction for CTR and Form 8300 reports (1010.311/1010.330), at the time of entry/departure (or within 15 days of receipt for an unaccompanied shipment) for CMIR (1010.340), and on or before 30 June each year for FBAR (1010.350). Section 1010.330 sets the Form 8300 threshold and section 1010.340 the CMIR threshold.

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  3ab2ead5363f99f3d7cc9f46cd076e7bc2ecd639008342e7b06cc0d629d4c853

Sources

Every page and document this return's facts were read from.

• fincen.gov/resources/statutes-regulations/guidance/cmir-guidance-common-carriers-currency-including-armored
• fincen.gov/resources/filing-information
• govinfo.gov/content/pkg/CFR-2025-title31-vol3/pdf/CFR-2025-title31-vol3-part1010.pdf

Knowing exactly what is collected, in what format and under which rules is the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.