How does customs know if you have anything to declare?

On some occasions, when a traveler goes through US customs, there are electronic self-serve kiosks or paper forms with detailed customs questions about what you are carrying (currency, goods, food, etc.), and there are statements warning about penalties for not answering truthfully.



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We'll get into specifics in a bit, but as a general rule of thumb, anything you obtained abroad needs to be declared. Some examples include: Purchases made abroad, including gifts for friends and family or something you will use or sell in your business. A gift given to you while abroad.

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If a passenger says they have nothing to declare, they then risk a fine for failing to declare something which customs officer then identify is liable to tax or is illegal. The fine will be in addition to any customs duty payable. Ignorance is no defence in law.

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Double-check for prohibited items In U.S. arrival areas, amnesty bins (or even garbage cans) are less common, however, which could potentially lead to more people being fined. A good rule of thumb is to search your bags one last time before deplaning to make sure you didn't, for example, stash an apple from the flight.

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In the air passenger environment, air carriers transmit passenger information to CBP through the Advance Passenger Information System (APIS). CBP officers also rely on the Interagency Border Inspection System (IBIS) to determine which individuals to target for secondary examination upon arrival in the United States.

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Travelers should declare all items being brought from abroad that will remain in the United States. This includes gifts and duty-free purchases. Goods purchased in a duty-free shop are not automatically free of duty upon your return to the United States.

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For most travellers going through customs is simply a matter of answering a few questions and then being sent on your way. But certain things can make customs officials more suspicious and may get you flagged for a more thorough inspection.

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They just see the passport information on the screen. All they are doing is validating that it is in fact your passport and is current. They'll see all your current travel history to the US and any details regarding prior immigration issues.

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