INTERNATIONAL TRADE LAW
Customs Seized Your Cash? CBP Currency Rules Explained
If you carry more than $10,000 in cash or monetary instruments across a U.S. border and fail to report it, Customs and Border Protection can seize every dollar — not just the amount above $10,000. There is no limit on how much money you may legally bring into or take out of the United States. The violation is not carrying the cash; it is failing to declare it. Travelers lose money at airports and land crossings every week for that single paperwork mistake, and recovering it is a formal legal process with hard deadlines.
The $10,000 Reporting Rule
Anyone transporting more than $10,000 into or out of the United States must file a report with CBP at the time of crossing. This requirement comes from the Bank Secrecy Act (31 U.S.C. § 5316), and the report is filed on FinCEN Form 105, the Report of International Transportation of Currency or Monetary Instruments — also called a CMIR.
The rule applies to U.S. citizens and foreign visitors alike, on the way in and on the way out. It also covers far more than paper bills.
| What counts toward the $10,000 | What it does NOT change |
|---|---|
| Cash (U.S. and foreign currency) | The amount you may legally carry — there is no cap |
| Traveler’s checks | Your right to carry it, if you report it |
| Money orders | The penalty for an honest, reported sum — none |
| Negotiable instruments (e.g., endorsed checks) | — |
The threshold is “more than $10,000,” and it is aggregated. A family or group traveling together cannot split $30,000 into three $10,000 bundles to slip under the line — the total moving together is what counts.
Why CBP Seizes the Entire Amount
When a traveler fails to file the CMIR, CBP has authority under 31 U.S.C. § 5317 to seize the full sum, not merely the portion exceeding $10,000. A passenger carrying $15,000 who does not declare it can have all $15,000 taken.</