Technical article

The Receipts in Your Bag: How Customs Learns What You Paid

One lesson in that account is that a watch bought abroad counts as an import, even if worn on the flight home.

By Neil Solomon · 4 min read

In August 2022, Customs and Border Protection at Dulles airport released the story of a Maryland couple returning from Paris. Both were members of Global Entry, the trusted-traveler program. At the desk they said they had nothing to declare. When asked about a Chanel handbag, they changed their answer. A search of the bags found 41 items of new designer clothing. The receipts added up to US$96,871. The couple had first claimed about US$300 to US$900.

The agency assessed duty, a fee and a penalty. The couple paid US$27,289 to keep the goods, and their Global Entry membership was revoked. The penalty came to roughly 28% of the receipt value. This account comes from a fashion forum that reproduced the agency's release, so the sourcing is secondhand.

A second case, a bigger gap

In November 2024, a traveler returning from Spain to Philadelphia declared US$700. A baggage search found receipts totaling US$80,932. The goods included an Audemars Piguet Royal Oak Offshore watch, handbags, a jacket and sneakers. The same forum relayed the agency's account. Global Entry was revoked, and the fines were described as likely to be substantial. The amount of the penalty was not reported.

One lesson in that account is that a watch bought abroad counts as an import, even if worn on the flight home. The other is that the papers were in the bag.

How the paper gets read

Both stories turned on receipts found in a search. A third account adds a different kind of record. In 2014, a jewelry distributor flew into O'Hare from London with 29 pieces loose in his pockets, along with receipts and invoices, and declared nothing. The agency's records showed earlier jewelry imports. The value was about US$691,000, and the duty that would have been owed was US$30,043. The pieces were seized. A law firm models the penalty at 3 to 8 times the duty, but the final outcome was not reported.

In Canada, a border agency release from May 2017 describes 12 cases of under-declared values and false invoices. In all 12, the penalty exceeded the tax avoided.

The rule behind the numbers

The US law on undeclared articles sets a penalty equal to the value of the article, plus possible forfeiture. A Customs and Border Protection director in Chicago, quoted by a law firm, said mitigated penalties run three to six times the duty. In one example from that firm, an undeclared watch worth US$2,000 owed US$200 in duty and drew a penalty of US$600 to US$1,200. The firm adds that liability applies whether the omission was deliberate or forgotten. Those are one law firm's figures for Chicago.

In Canada, the same 2017 release lists penalties paid in three cases: CAD 15,700 on a car where tax would have been CAD 2,500, CAD 542 on a handbag where tax would have been CAD 176, and CAD 15,788 on a motorhome where tax would have been CAD 1,668. Penalties ran 25 to 80% of value.

The objection

You might say, "I just forgot the receipts were in there." The Chicago law firm says liability applies either way. In the Dulles account, the couple changed their answer when asked about the handbag, and the receipts then settled the figure.

Who this touches

A spouse who travels with you, a child who shops for you, and a friend who carries a gift can each bring a bag that holds receipts. Global Entry was revoked in the first two cases here, so the cost was more than money.

Doors you could open

You could add up receipts before the flight. You could ask the border agency how declaring works for your trip.

Has a receipt ever surprised you at a counter? Share what you learned. Someone may find it useful.

Figures are estimates for planning, based on public data. Date read: October 2026.