To declare something at customs means to formally report it to U.S. Customs and Border Protection (CBP) when you enter the country — listing on a declaration form the goods you bought or received abroad, any agricultural items, medications, and cash or monetary instruments over $10,000. The declaration is how CBP decides whether you owe duty, whether an item can enter the country, and whether your bags need a closer look. Declaring an item is not the same as surrendering it. Many declared items pass through without issue. What gets travelers in trouble is not declaring.
What You Have to Declare
Federal regulations require every arriving traveler to report the items they’re bringing in, whether purchased, received as gifts, or acquired any other way abroad.1eCFR. 19 CFR 148.12 – Oral Declarations That obligation covers even items that turn out to be duty-free. The declaration is the mechanism CBP uses to sort what qualifies for an exemption, what owes duty, and what can’t come in at all.
The categories that matter most for a typical traveler:
- Goods you acquired abroad. Anything you bought, were given, or otherwise obtained outside the United States, including items from duty-free shops. A leather jacket from Rome, a case of wine from France, electronics from Tokyo — all reportable, even if they’re for personal use. Clothes you packed, your laptop, and your phone are personal effects you already owned and don’t need to be declared.2Office of the Law Revision Counsel. 19 USC 1498 – Entry of Articles for Personal Use
- Agricultural products. All fruits, vegetables, meats, plants, seeds, and soil. Even soup mixes with meat broth fall under this. These items can carry invasive pests or foreign animal diseases, so CBP treats undeclared agricultural goods seriously. Many are ultimately allowed through after inspection; the trouble comes when a prohibited item is found in a bag that didn’t mention it.3U.S. Customs and Border Protection. Bringing Agricultural Products Into the United States
- Currency and monetary instruments over $10,000. Cash, traveler’s checks, money orders, and similar instruments, combined, in U.S. or foreign currency.
- Medications. All drugs and medicinal products, with particular attention to prescription and controlled substances.
- Wildlife products. Items made from endangered species, certain animal hides, and ivory are regulated under international treaties and must be declared.
The $800 Personal Exemption and How Duty Is Calculated
Declaring goods you bought abroad doesn’t automatically mean paying duty. Returning U.S. residents can bring back up to $800 worth of goods duty-free, as long as the items are with you when you arrive.4U.S. Customs and Border Protection. Types of Exemptions The figure is the total fair retail value — what you actually paid — of everything you acquired abroad. Come back from Italy with $600 in purchases and you owe nothing. Come back with $1,200 in goods and duty applies only to the $400 over the exemption.
Families traveling together can pool exemptions on a single joint declaration. A household of four gets a combined $3,200, which means one spouse’s $2,000 rug can be absorbed by the group even though it exceeds any individual’s $800.5U.S. Customs and Border Protection. CBP Expands Filing of Joint Customs Declarations The travelers have to actually share a household; roommates who aren’t in a committed domestic relationship don’t qualify.
For value above the exemption, CBP applies a flat 3% duty on the next $1,000.6U.S. Customs and Border Protection. Customs Duty Information Beyond that, items are assessed at the normal tariff rate for the product. If you’re $500 over your exemption, the duty is $15. Keep receipts accessible — you’ll be asked for the retail value on the form, and receipts protect you if an officer questions your numbers.
Cash Over $10,000
There is no limit on how much money you can carry into or out of the United States. There is a reporting requirement. If you’re transporting more than $10,000 in currency or monetary instruments at one time, you have to file FinCEN Form 105 with CBP.7Office of the Law Revision Counsel. 31 USC 5316 – Reports on Exporting and Importing Monetary Instruments The threshold applies to the combined total of all monetary instruments — cash, traveler’s checks, money orders, and promissory notes — in any currency.8USAGov. How Much Money Can You Bring Into and Out of the U.S.
Splitting the money between carry-on bags, handing part of it to a travel companion, or mailing a portion separately does not work. The law reaches money you transport, attempt to transport, or cause to be transported by any means.9U.S. Customs and Border Protection. How Much Currency/Monetary Instruments Can I Bring Into the United States? Fail to report, and CBP can seize the entire amount, not just the portion over $10,000. Willful violations can also carry criminal forfeiture.10Office of the Law Revision Counsel. 31 USC 5317 – Search and Forfeiture of Monetary Instruments
Medications
All medications must be declared, but the paperwork depends on what you’re carrying. For common over-the-counter drugs, listing them on the declaration is generally enough. Prescription medications should be in their original labeled containers. If that’s not possible, carry a copy of the prescription or a letter from your doctor explaining the medical need.11U.S. Customs and Border Protection. Traveling with Medication to the United States
Controlled and potentially addictive substances — sleeping pills, stimulants, some antidepressants, some cough medicines — face stricter rules. They must stay in original containers, be limited to a personal supply for the trip, and be accompanied by a prescription or doctor’s statement. CBP generally allows no more than a 90-day supply. Without a valid prescription from a U.S.-licensed practitioner registered with the DEA, the limit drops to 50 dosage units.11U.S. Customs and Border Protection. Traveling with Medication to the United States
One thing that catches people out: only medications legally prescribable in the United States can be brought in for personal use. A drug prescribed by a foreign doctor that hasn’t been approved by the FDA may be confiscated at the border, even if it’s routine where you were traveling.
How You Actually Declare
The declaration itself is a form — CBP Declaration Form 6059B — that asks for your name, passport number, flight information, the countries you visited, and whether you’re carrying anything reportable.12U.S. Customs and Border Protection. Traveler Entry Forms A single form covers a family filing jointly. You’ll add up the total retail value of everything you acquired abroad, which is why keeping receipts handy matters.
At the inspection area, you hand the completed form to a CBP officer. Many airports have Automated Passport Control (APC) kiosks that let you enter the same information on a touchscreen; the kiosk prints a receipt you give to the officer. Some airports also support the Mobile Passport Control app, which lets you submit the declaration from your phone before you reach the officer.13U.S. Customs and Border Protection. Mobile Passport Control
Most travelers clear customs quickly. If something on the form needs a closer look, or if the officer wants to verify what you reported, you’ll be sent to secondary inspection. That is not automatically a problem. Agricultural items, for example, routinely get physically inspected even when properly declared.
What Happens If You Don’t Declare
Anything you fail to include on your declaration, and don’t mention to the officer before your bags are opened, is subject to forfeiture — CBP takes it on the spot.14Office of the Law Revision Counsel. 19 USC 1497 – Penalties for Failure to Declare You also face a penalty equal to the full retail value of the undeclared item. If it’s a controlled substance, the penalty is $500 or ten times the value, whichever is greater.
The consequences don’t end at the airport. CBP records the violation, and future arrivals will likely mean more thorough inspections. A Global Entry or other trusted traveler membership can be revoked over a false or incomplete declaration; agricultural items, undisclosed purchases, and false information on applications are among the most common reasons.15U.S. Customs and Border Protection. CBP Revokes Global Entry Membership; Traveler Fails to Provide Truthful Declaration Reapplying after a revocation is an uphill process.
Challenging a Seizure
If CBP seizes your property, you can contest the forfeiture by filing CBP Form 4630, a petition for relief.16U.S. Customs and Border Protection. CBP Form 4630 – Petition for Relief from Forfeiture You generally have 30 days from the date the notice of seizure is mailed. Miss the window and your options narrow sharply. The petition is where you explain what happened; a genuine oversight is treated differently than deliberate concealment, though neither guarantees the property comes back. For high-value seizures, an attorney who works in customs law is worth considering — the procedure has specific requirements that are easy to mishandle.