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FinCEN Form 105 (CMIR): Complete guide to currency reporting when crossing US borders
Quick answer: If you physically transport, mail, or ship more than $10,000 in currency or monetary instruments into or out of the United States, you must file FinCEN Form 105 – formally called the Report of International Transportation of Currency or Monetary Instruments, or CMIR.
The requirement applies at the time of crossing. Failure to file can result in seizure of the funds, civil penalties, and criminal prosecution.
FinCEN Form 105 is one of the most commonly overlooked compliance obligations for Americans living abroad. Unlike FBAR or FATCA – which deal with foreign accounts – the CMIR applies specifically to physical movement of cash and certain financial instruments across US borders.
Whether you are an expat returning with savings, a business traveler carrying operating funds, or a family member receiving a large cash gift from overseas, the rules apply to you the moment you cross the threshold.
This guide covers every aspect of the form: who must file, what counts as a monetary instrument, how to complete and submit the form, and what happens if you do not.
What is FinCEN Form 105 (CMIR)? Definition, purpose, and who must file
FinCEN Form 105 is the federal form required whenever a person physically transports, mails, or ships more than $10,000 in currency or monetary instruments into or out of the United States.
The form's full name is the Report of International Transportation of Currency or Monetary Instruments, commonly abbreviated as CMIR.
The shorthand CMIR FinCEN refers to the Currency and Monetary Instruments Report filed with the Financial Crimes Enforcement Network.
FinCEN, a bureau of the US Department of the Treasury, administers the form. US Customs and Border Protection – CBP – enforces it at the border.
The following persons must file:
- Travelers physically carrying currency or monetary instruments exceeding $10,000 when entering or leaving the US
- Shippers and mailers sending currency or monetary instruments exceeding $10,000 into or out of the US
- Recipients who receive more than $10,000 in currency or monetary instruments transported from outside the US, if a CMIR was not already filed by the sender
- Agents and bailees acting on behalf of another person in any of the above scenarios – both the agent and the principal may have independent filing obligations
The CMIR obligation is triggered by the physical movement of funds. Wire transfers and electronic bank transactions do not require a CMIR because no physical transportation occurs.
The filing obligation follows the money, not the person. If you are carrying funds on behalf of someone else – as a courier, family member, or business associate – you must file FinCEN Form 105 and identify the owner of the funds on the form.
Both the carrier and the owner may have independent reporting duties.
The $10,000 threshold: When exactly must you file FinCEN Form 105?
The CMIR filing requirement is triggered when the total value of currency and monetary instruments transported exceeds $10,000 at one time – measured per trip, not per person.
Under 31 USC § 5316, you must file a currency reporting form – in this case, FinCEN Form 105 – in any of the following scenarios:
- Transporting currency into the US – You arrive at a US port of entry with more than $10,000 in cash or monetary instruments
- Transporting currency out of the US – You depart the US with more than $10,000 in cash or monetary instruments
- Receiving currency transported from abroad – You receive more than $10,000 in cash or monetary instruments that were shipped or mailed to you from outside the US
- Mailing or shipping currency – You send more than $10,000 in cash or monetary instruments into or out of the US by mail or courier
The threshold is the total combined value of all currency and monetary instruments. The FinCEN Form 105 currency and monetary instruments report threshold applies collectively to a group traveling together.
A family of four carrying $3,000 each – $12,000 total – must file, even though no single person exceeds $10,000.
The $10,000 threshold is set by statute under 31 USC § 5316 and has never been adjusted for inflation. It is one of the few fixed dollar thresholds in US financial compliance law.
Wire transfers and electronic payments are not subject to CMIR rules, but they may trigger separate international money transfer tax obligations depending on the amounts involved.
What counts as currency and monetary instruments under FinCEN rules?
Personal checks payable to a named individual are generally not monetary instruments for CMIR purposes – but traveler's checks are, and so are money orders and other bearer instruments.
Under 31 CFR 1010.100(dd), the following qualify as monetary instruments for FinCEN 105 currency reporting:
- US and foreign currency – coins and paper money of any country
- Traveler's checks in any form
- Money orders – when in bearer form, endorsed without restriction, or made out to a fictitious payee, the same test that applies to personal and business checks
- Cashier's checks and official bank checks – when endorsed without restriction, made payable to bearer, or made out to a fictitious payee
- Personal and business checks – only when endorsed to bearer, endorsed without restriction, or made out to a fictitious payee
- Promissory notes in bearer form
- Bearer securities or stock – any instrument whose title passes upon delivery
- Incomplete instruments – signed checks or notes with the payee name left blank
A currency and monetary instrument report is not required for personal checks made payable to a specific named person and not endorsed to bearer. Warehouse receipts and bills of lading are also excluded.
Foreign currency counts toward the $10,000 threshold. Convert the value to US dollars using the prevailing exchange rate on the date of transport to determine whether you meet the reporting threshold.
If you carry mixed currencies – for example, $6,000 in US bills and €4,500 in euros – you must add both amounts together.
How to get FinCEN Form 105: Paper vs. electronic options
You can obtain FinCEN 105 through several methods, and electronic filing options are available alongside the traditional paper form.
There are three primary ways to access and submit FinCEN 105:
- Download the FinCEN Form 105 PDF, print it, complete it, and submit it to a CBP officer at any port of entry or departure, or mail it to CBP
- Obtain a paper copy from CBP officers at airports, seaports, and land border crossings at the time of travel
- File electronically through CBP's online FinCEN Form 105 portal at fincen105.cbp.dhs.gov, or obtain a paper copy from a CBP officer at the port of entry or departure. The online portal lets you complete the form in advance and generates a confirmation you can present to a CBP officer – it doesn't replace the in-person step for travelers, who must still confirm the filing with a CBP officer at the time of crossing.
If you plan cross-border currency movements regularly – for business operations, real estate transactions, or family support – using CBP's online FinCEN Form 105 portal is worth considering.
Having FinCEN 105 online access means you can prepare and submit the form before travel rather than completing it at the border under time pressure.
Even though electronic filing is available, travelers entering or departing the US with reportable amounts should carry a printed copy of their filed CMIR as proof of compliance.
CBP officers may request documentation at the border regardless of whether you filed electronically in advance.
Step-by-step FinCEN Form 105 instructions for completing the form
Every field on FinCEN Form 105 must be completed accurately – leaving fields blank or providing estimated amounts is treated the same as non-filing by CBP and FinCEN enforcement.
Here is a FinCEN Form 105 example walkthrough of each major section.
- Filer identification – Part I – Enter your full legal name, date of birth, and government-issued identification number. US citizens and residents typically use a Social Security number; foreign nationals use a passport number. If you are carrying currency on behalf of someone else as an agent or bailee, you still complete Part I with your own information – the principal's name, address, and business details go in Part II, not Part I.
- Direction of travel – Part I, Block 11 – Indicate whether the currency is entering or leaving the United States using Block 11A (exported from the US) or Block 11B (imported into the US). If the currency was mailed or shipped rather than hand-carried, use Block 12 instead. This determines which CBP procedures apply and affects the filing deadline.
- Principal's information – Part II – If you are filing as an agent or bailee, identify the person or business on whose behalf you are transporting the funds: name, address, and type of business activity. Skip this section if the funds are your own.
- Currency and monetary instruments – Part III – Describe the total value of all currency and monetary instruments you are transporting. List each type separately – currency, traveler's checks, money orders, and so on – with the amount. If you carry a currency other than US dollars, enter the currency name and its country in Block 17 (17A and 17B). If you carry more than one foreign currency, attach a list showing each type, its country of origin, and the amount.
- Country of origin or destination – Part III continued – Identify the country the currency is coming from or going to. For hand-carried funds, this goes in Block 11A (exported) or Block 11B (imported). For mailed or shipped funds, it appears in the "shipped to" and "received from" addresses in Blocks 12e and 12f.
- Signature and date – Part IV – Sign and date the form. The signature certifies that all information is complete and truthful. False statements on FinCEN Form 105 carry the same penalties as failing to file.
Based on a TFX client scenario: A dual citizen traveling from Europe to the US was carrying $8,000 in US currency, €3,200 in euros, and $4,500 in traveler's checks – which converted to roughly $16,100 total at the day's exchange rate.
The form required separate line entries for each instrument type, with the euro amount converted at the day's rate.
When crossing the US border, currency is not the only item that must be declared – agricultural products, certain medications, and duty-subject goods also require disclosure under CBP's entry rules.
Where and when to submit FinCEN Form 105
There is no grace period for filing – FinCEN Form 105 must be filed at the time of transport, not after the fact, and retroactive filing does not eliminate penalty exposure.
Where to submit your CMIR report depends on how the currency is being transported and the filer's role.
- Travelers – entering or departing – File with a CBP officer at the port of entry or departure at the time of crossing
- Shippers – File by mail before the shipment departs the US. Mail the completed form to: Attn: OIT/CBP/CMIR, Passenger Systems Directorate, 22001 Loudoun County Parkway, Mail Stop 1258, Ashburn, VA 20598
- Recipients of mailed or shipped currency – File within 15 days after receiving the currency, with the CBP officer in charge at any port of entry or departure, or by mail
- Agents acting on behalf of another person – Must identify the principal on the form and file according to the same deadlines based on the type of transport
If you are unsure where to submit FinCEN Form 105, the default for most travelers is directly with the CBP officer at the border. For electronic filing, submit via CBP's online FinCEN Form 105 portal before travel when possible, then confirm the filing with a CBP officer at the time of crossing.
CBP officers can provide the paper form on-site if you need one at the time of crossing. However, completing the form under time pressure at an airport or land border increases the chance of errors.
Download and familiarize yourself with the form before you travel.
Civil penalties for failing to file FinCEN Form 105
A civil penalty for a CMIR violation under 31 USC § 5321(a)(2) is capped at the value of the currency or monetary instruments involved, reduced by any amount already forfeited under 31 USC § 5317(b) – and the currency itself may also be seized.
The FinCEN 105 consequences for failing to file include:
- Civil monetary penalties – Any person who fails to file a required CMIR, or files one with a material omission or misstatement, faces a civil penalty of up to the value of the currency or monetary instruments involved, even if the failure was not willful. The penalty is reduced by any amount already forfeited under 31 USC § 5317(b).
- Seizure and forfeiture – Under 31 USC § 5317, CBP can seize 100% of the unreported currency or monetary instruments at the border. Forfeiture extends to instruments for which no CMIR was filed or for which the CMIR contained a material omission or misstatement.
- Cumulative exposure – Civil penalties apply independently of any criminal charges. Because the civil penalty is reduced by any amount already forfeited, the combined civil penalty and forfeiture cannot exceed the value of the unreported currency or monetary instruments.
The penalties are proportional to the severity of the violation. A traveler who was unaware of the requirement and voluntarily discloses the oversight faces a different enforcement posture than someone who deliberately concealed currency.
Civil forfeiture of currency at the border is an administrative action – it can occur even without a criminal charge.
If your funds are seized, you have a limited window to file a petition for remission or a verified claim for judicial review. Acting quickly matters.
CMIR civil penalties are part of a broader enforcement framework that also includes IRS tax penalties for late filing, underpayment, and unreported foreign accounts.
Criminal penalties for CMIR violations: What the law says
Willful failure to file FinCEN Form 105 is a federal crime under 31 USC § 5322, carrying potential imprisonment of up to five years – or up to ten years if the violation is part of another criminal offense.
Criminal exposure includes:
- Base offense – Willful failure to file, or willfully filing with false information: fine up to $250,000 and/or imprisonment up to 5 years
- Enhanced offense – If the violation occurs while violating another US law, or as part of a pattern of illegal activity involving more than $100,000 in a 12-month period: fine up to $500,000 and/or imprisonment up to 10 years
- Structuring – Deliberately breaking up currency amounts below $10,000 to avoid filing – known as "structuring" – is itself a separate federal crime under 31 USC § 5324, with penalties of up to 5 years imprisonment – or 10 years if aggravated – even if no other law is violated
Filing a CMIR that contains a material omission or misstatement carries the same penalties as failing to file altogether. The government does not need to prove you intended to commit a separate crime – only that you willfully chose not to file or deliberately misrepresented the facts.
Structuring applies even when the underlying funds are entirely legal. Making four separate trips across the border with $4,000 each to stay under $10,000 is a federal offense if done for the purpose of avoiding the CMIR requirement.
The intent to evade, not the source of the money, is what triggers criminal liability.
Green card holders with undisclosed foreign accounts or unreported income face additional risk.
Currency seizure and forfeiture: What happens at the border
CBP can seize 100% of the unreported currency at the border, and the government's burden to prove the currency is subject to forfeiture is lower than the standard required for a criminal conviction.
What happens when CBP finds unreported currency
Here is what typically happens when unreported currency is identified at a US border crossing:
- CBP identifies unreported currency above $10,000 – this may occur during routine screening, random inspection, or secondary examination
- Currency is seized on the spot under 31 USC § 5317 – CBP issues a seizure receipt documenting the amount, date, and circumstances
- FinCEN and HSI are notified – The seizure is reported to the Financial Crimes Enforcement Network and Homeland Security Investigations
- The traveler has a limited window to respond: typically 30 days from the date of the notice to file a petition for remission with CBP, or at least 35 days, as set in the notice letter, to file a formal claim for judicial review under the Civil Asset Forfeiture Reform Act.
- If no valid claim is filed, the government proceeds with administrative forfeiture, and the currency becomes property of the United States
CBP has the authority to seize the entire amount – not just the unreported portion above $10,000. A traveler carrying $25,000 without a CMIR risks losing all $25,000, not just the $15,000 above the threshold.
Filing a verified claim triggers the government's obligation to prove the currency is subject to forfeiture in court, rather than allowing an administrative petition alone to decide the outcome.
If you believe the seizure was unjustified, filing a verified claim preserves your right to judicial review.
Taxpayers who challenge financial penalties in court – as some have with FBAR penalty disputes – generally fare better when they can demonstrate the non-filing was non-willful.
Common mistakes and traps when filing FinCEN Form 105
One of the most dangerous misconceptions is that FinCEN Form 105 only applies to cash – in reality, traveler's checks and bearer negotiable instruments, including bearer-form money orders, all count toward the $10,000 threshold.
Here are the six most common errors:
- Not aggregating currency held by multiple traveling companions – If a family of four carries a combined total over $10,000, a CMIR is required even though each person holds less than $10,000
- Forgetting to include traveler's checks and bearer-form money orders in the total – These are monetary instruments under 31 CFR 1010.100 and must be counted alongside cash
- Assuming the form only applies to cash and not bearer instruments – Bearer checks, incomplete instruments, and bearer securities also qualify
- Believing a round-trip exemption exists – There is no exemption for returning to the US with the same funds you took out. Each crossing is a separate filing event.
- Filing after crossing instead of at the time of crossing – The form must be filed at the time of transport, not retroactively. Late filing does not cure the violation.
- Structuring amounts to stay just under $10,000 – Deliberately splitting currency across multiple trips or multiple people to avoid the threshold is a separate federal crime under 31 USC § 5324
Based on a TFX client scenario: A family of four was returning to the US, each carrying $4,000 in cash for a total of $16,000. They assumed that because no individual exceeded $10,000, no reporting was needed.
A CBP officer identified the total during screening and issued a notice. The family filed the CMIR on the spot, but the late filing triggered an investigation into whether the amounts had been structured intentionally.
How FinCEN Form 105 relates to FBAR and other foreign account reporting
Filing FinCEN Form 105 – the CMIR – does not satisfy your FBAR obligation, and having a foreign bank account does not trigger a CMIR requirement – these are two entirely distinct reporting regimes.
The two forms are separate, independent obligations with different triggers:
- FinCEN Form 105 – the CMIR – applies to the physical cross-border movement of currency or monetary instruments exceeding $10,000 at one time. It is filed with CBP at the time of transport.
- FinCEN Form 114 – the FBAR – applies to US persons who have a financial interest in or signature authority over foreign financial accounts with an aggregate value exceeding $10,000 at any point during the calendar year. It is filed electronically through the BSA E-Filing System.
The CMIR is a per-crossing obligation triggered by physical currency movement; the FBAR is an annual obligation triggered by foreign account balances.
| CMIR – Form 105 | FBAR – Form 114 | |
|---|---|---|
| Trigger | Physical transport of >$10,000 in currency/instruments | Foreign account balance >$10,000 at any point in the year |
| Filing event | Each border crossing | Annually, by April 15 – auto-extended to October 15 |
| Who administers | FinCEN and CBP | FinCEN |
| Penalty structure | Civil penalties, seizure, criminal (31 USC §§ 5321–5322) | Civil penalties non-willful up to $16,536 (2025) per report; willful up to the greater of $165,353 (2025) or 50% of the account balance, per violation; criminal |
| What it covers | Physical cash and bearer instruments | Foreign bank, securities, and other financial accounts |
Note that FBAR applies to foreign financial accounts exceeding the applicable threshold at any point during the calendar year, while CMIR applies to physical cross-border currency movement.
The FBAR has its own set of deadlines, thresholds, and penalties entirely distinct from the CMIR.
FBAR carries an annual filing deadline with automatic extension to October 15 and penalties for non-filing assessed per report for non-willful violations and per violation for willful ones.
Is FinCEN Form 105 reported to the IRS? Tax implications of CMIR
FinCEN Form 105 is administered by FinCEN and CBP – not the IRS – but information from CMIR filings can be shared with the IRS and other law enforcement agencies under the Bank Secrecy Act's information-sharing provisions.
A FinCEN 105 tax obligation does not arise from the filing alone. Transporting cash is not a taxable event. However, the currency disclosed on a CMIR may prompt IRS inquiries if it suggests:
- Unreported foreign income – Large sums of foreign currency entering the US may raise questions about whether the income was reported on your US tax return
- Undisclosed foreign accounts – A CMIR filing showing funds from a country where you hold accounts could trigger FBAR or FATCA review
- Gift or inheritance from a foreign person – If the transported currency represents a gift or bequest from a nonresident alien individual or a foreign estate exceeding $100,000 (2025), you likely need to file Form 3520. If it's from a foreign corporation or foreign partnership instead, the reporting threshold is much lower – $20,116 for 2025.
The CMIR itself is not an IRS form and does not appear on your tax return.
But the data is accessible to the IRS through the BSA database, and discrepancies between what you report on your CMIR and what you report on your tax return can trigger an examination.
If you are transporting currency that represents a foreign gift or inheritance, check whether Form 3520 applies.
The $100,000 (2025) threshold for reporting gifts from nonresident alien individuals and foreign estates is separate from the $10,000 CMIR threshold – and the penalties for missing Form 3520 are significant.
CMIR vs. CBP Form 6059B: Understanding the customs declaration difference
Checking "yes" on CBP Form 6059B is not the same as completing FinCEN Form 105 – the customs declaration is a trigger, not a substitute for the CMIR.
CBP Form 6059B – the customs money declaration form completed by all arriving international travelers – includes a question asking whether you are carrying more than $10,000 in currency or monetary instruments.
Understanding the difference is essential for customs currency compliance.
Here is how the FinCEN 105 CBP requirements compare to the customs declaration:
- CBP Form 6059B is a general customs declaration completed by all arriving international travelers. It asks a yes/no question about currency amounts. Answering "yes" alerts the CBP officer that you need to complete a CMIR.
- FinCEN Form 105 is the actual reporting document that must be completed with full details of the currency, the filer, and the source or destination of funds. It is the legal compliance document.
Answering "no" on Form 6059B when you are carrying more than $10,000 does not satisfy your reporting obligation – it compounds it. You now have both a CMIR violation – failure to file – and a false statement on a customs declaration.
Bringing currency into the US: Rules for travelers, shippers, and recipients
The CMIR obligation falls on the person who physically transports the currency AND on the recipient if the currency was mailed or shipped – both parties may have independent filing obligations.
The CMIR reporting requirements differ by filer type:
- Travelers – Must file at the port of entry when entering the US, or at the port of departure when leaving. The form is filed with a CBP officer at the time of crossing.
- Shippers – Must file before the shipment departs. The form is filed by mail on or before the date of mailing or shipping. A shipper who sends currency without filing a CMIR is in violation from the moment the shipment leaves.
- Recipients of mailed or shipped currency – Must file within 15 days after receiving the funds, if no CMIR was already filed by the sender. The obligation exists even if the recipient did not request the transfer.
- Agents acting on behalf of another person – Must identify the principal on the form. The agent's own information is also required. Both the agent and the principal have filing obligations.
US citizenship or residency status is irrelevant to the CMIR requirement. Any person – regardless of nationality – who physically transports more than $10,000 into or out of the United States must file FinCEN Form 105.
Based on a TFX client scenario: An American expat received a large cash gift shipped from a nonresident alien family member abroad. The sender did not file a CMIR.
The recipient was required to file within 15 days of receipt and, because the gift exceeded $100,000 (2025), also needed to file Form 3520 with their tax return.
If you are expecting a shipment of currency from overseas, confirm with the sender whether a CMIR was filed on their end.
If it was not, you must file within 15 days of receipt – regardless of whether you knew a CMIR was required.
Responding to a CMIR violation: Past non-compliance and voluntary disclosure options
Proactively addressing a missed CMIR filing – before CBP or FinCEN initiates contact – is almost always more favorable than waiting for an enforcement action.
Steps to address a missed CMIR filing
If you realize you failed to file a CMIR for a past border crossing, consider the following steps:
- Consult a qualified international tax attorney or advisor immediately – CMIR violations carry both civil and criminal exposure, and the right strategy depends on the specific facts
- Gather documentation proving the lawful source of the currency – bank statements, inheritance records, business contracts, or gift documentation. Source-of-funds evidence is the single most important factor in penalty mitigation.
- Evaluate whether a voluntary disclosure or petition for remission is appropriate – The IRS Voluntary Disclosure Practice and FinCEN's administrative processes may offer paths to resolve past violations with reduced penalties
- Do not make additional statements to CBP or FinCEN without counsel – Anything you say during an examination can be used in both civil and criminal proceedings
The key principle is that early, voluntary disclosure typically results in more favorable outcomes than being discovered during an enforcement action or audit.
FinCEN Form 105 and anti-money laundering: The bigger compliance picture
FinCEN Form 105 exists because large cross-border cash movements are a primary vector for money laundering, tax evasion, and sanctions evasion – making CMIR compliance a national security issue, not just a paperwork requirement.
The CMIR is one component of the Bank Secrecy Act's broader anti-money laundering – AML – framework, alongside Currency Transaction Reports – CTRs – filed by financial institutions and Suspicious Activity Reports – SARs.
Related BSA reporting forms
Related BSA reporting forms include:
- FinCEN Form 112 – the CTR – Filed by banks and financial institutions when a customer conducts a currency transaction exceeding $10,000 in a single business day. Unlike the CMIR, the CTR is filed by the institution, not the customer.
- FinCEN SAR – Suspicious Activity Report – Filed by banks when a transaction involves at least $5,000 and the bank knows, suspects, or has reason to suspect it involves illegal activity or has no business or lawful purpose. SARs are confidential, and the subject is never notified.
- FinCEN Form 114 – the FBAR – Filed annually by US persons with foreign financial accounts exceeding $10,000 in aggregate value at any point during the year
These forms feed into FinCEN's database, which is accessible to law enforcement agencies including the IRS, FBI, and Department of Justice.
A CMIR filing is not an accusation – it is a routine compliance report. But inconsistencies between CMIR data and other filings – or the absence of expected filings – can trigger an investigation.
Under FinCEN's final rule issued on August 11, 2026, which permanently codifies an interim rule from March 2025, US companies and US persons no longer have to file beneficial ownership reports under the Corporate Transparency Act.
Only entities formed under foreign law that are registered to do business in a US state or tribal jurisdiction – and only for their non-US beneficial owners – still have to report.
Special situations: Business travelers, expats, and dual citizens
US citizenship or residency status is irrelevant to CMIR – any person, regardless of nationality, who physically transports more than $10,000 into or out of the United States must file FinCEN Form 105.
Who has unexpected filing obligations?
Several common situations create unexpected CMIR exposure:
- Business travelers carrying company funds – The filing obligation applies to the person physically carrying the currency, even if the funds belong to a business entity. The business entity may also have reporting obligations.
- American expats returning to the US with accumulated foreign savings – The CMIR applies regardless of how long the funds were held abroad. Whether you are bringing back a decade of savings or funds you withdrew yesterday, the threshold is the same.
- Dual citizens entering or leaving the US – Dual citizenship in another country does not exempt anyone from CMIR requirements if they are entering or leaving US territory
- Minors transporting currency – A parent or guardian must file on behalf of a minor carrying reportable amounts
- Transit passengers – If you are passing through the US on the way to another country and your layover requires you to clear customs, the CMIR requirement applies
The common thread is that CMIR follows the physical movement of money, not the nationality, residency, or tax status of the person carrying it.
Managing cross-border finances through proper international banking channels – rather than carrying large amounts of cash – reduces CMIR exposure while keeping funds accessible.
CMIR reporting thresholds and key rules at a glance
The $10,000 CMIR threshold is set by statute under 31 USC § 5316 and has never been adjusted for inflation – making it one of the few fixed thresholds in US financial compliance law.
| Rule | Detail | Applies to | Online filing | Penalty authority |
|---|---|---|---|---|
| Reporting threshold | More than $10,000 in currency and monetary instruments at one time | All persons transporting, mailing, shipping, or receiving | Yes – CBP online portal, optional | 31 USC § 5316 |
| Direction | Into AND out of the US | All filers | Same | Same |
| Who must file | Transporter, shipper, recipient, agent | Individuals, businesses, agents | Same | Same |
| Filing timing | At time of transport or shipment; within 15 days for recipients | Varies by filer type | Same | Same |
| Civil penalties | Up to the value of the currency or monetary instruments involved, reduced by any amount forfeited | Willful and non-willful violations | N/A | 31 USC § 5321(a)(2) |
| Criminal penalties | Up to $250,000 fine and 5 years; enhanced to $500,000 and 10 years | Willful violations | N/A | 31 USC § 5322 |
| Seizure/forfeiture | 100% of unreported currency | All violations | N/A | 31 USC § 5317 |
| Structuring | Separate federal crime | Anyone breaking amounts to avoid threshold | N/A | 31 USC § 5324 |
| Inflation adjustment | None – threshold fixed by statute, never inflation-adjusted | All filers | N/A | 31 USC § 5316 |
Frequently asked questions
FinCEN Form 105 is used to report the physical transportation, mailing, or shipping of more than $10,000 in currency or monetary instruments into or out of the United States.
The form is filed with CBP, and the data is shared with FinCEN and law enforcement. To understand how to file FinCEN Form 105, follow the step-by-step walkthrough in Section 5 above.
The filing threshold is more than $10,000 in currency or monetary instruments at one time. The threshold applies to the combined total carried by all persons traveling together, not per individual.
Yes. FinCEN Form 105 can be filed online in advance through CBP's electronic filing portal at fincen105.cbp.dhs.gov, in addition to the traditional paper form submitted to a CBP officer at the port of entry or departure.
Yes. Foreign currency counts toward the $10,000 threshold. Convert the foreign currency to its US dollar equivalent using the prevailing exchange rate on the date of transport. The currency declaration form requirement applies equally to US dollars and foreign currency.
Failure to file can result in civil penalties, criminal prosecution, and seizure of the unreported currency. Even unintentional failure to file creates liability.
There is no automatic grace period, though voluntary disclosure may reduce penalties.
No. FinCEN Form 105 – the CMIR – reports the physical cross-border movement of currency, while FinCEN Form 114 – the FBAR – reports foreign financial accounts.
They have different triggers, deadlines, and penalty structures. Filing one does not satisfy the other. FinCEN 105 online filing is optional, through CBP's fincen105.cbp.dhs.gov portal, while FBAR filing is mandatory through the BSA E-Filing System.
Yes. If you pass through a US port of entry and clear customs – even on a connecting flight – the CMIR requirement applies. The US customs declaration amount threshold of $10,000 applies to all persons entering US territory, including transit passengers.
No. Filing a CMIR does not create a tax liability. However, the IRS can access CMIR data, and large currency movements may prompt questions about whether the funds were properly reported on your tax return. The US customs money limit for reporting is a compliance requirement, not a tax.
The CMIR reporting requirements for mailed or shipped currency are the same as for hand-carried funds – any shipment exceeding $10,000 in currency or monetary instruments must be reported.
The sender must file before the shipment departs. If the sender does not file, the recipient must file within 15 days of receiving the funds.
CBP Form 6059B – the customs money declaration – is a general arrival form that asks a yes/no question about carrying more than $10,000. Answering "yes" triggers the obligation to complete FinCEN Form 105, which is the detailed compliance document.
Filing the customs declaration alone does not satisfy the CMIR requirement.
Download the fillable PDF directly from fincen.gov. Paper copies are available from CBP officers at any US port of entry or departure – you do not need to bring your own.
Travelers file at the time of crossing – before leaving the inspection area. Shippers file on or before the mailing date. Recipients file within 15 days of receiving the funds if the sender did not already file.
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Learn FBAR Form 114 filing requirements, the $10,000 threshold, 2026 deadline, extensions, account reporting rules, and how to file with FinCEN.
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