What you have to declare at U.S. customs is, in short, everything you acquired outside the country: items you bought, were given, inherited, won, or had repaired or altered abroad, plus a handful of categories that always require disclosure regardless of value. That includes purchases from duty-free shops, items picked up on the plane or a cruise ship, all food and agricultural products, alcohol and tobacco, prescription medications, pets, and any currency or monetary instruments totaling more than $10,000 for your travel group. Most returning residents get an $800 duty-free exemption, but the exemption reduces what you owe, not what you have to report.1U.S. Customs and Border Protection. CBP Form 6059B – Customs Declaration
The declaration form asks specific yes-or-no questions designed to flag categories that get extra scrutiny: currency over the threshold, food and agricultural items, contact with livestock, and commercial merchandise. Answering “yes” is not a problem. It tells a CBP officer to inspect those items properly. The problem starts when you answer “no” and an officer finds something you should have reported.
Cash and Monetary Instruments Over $10,000
Carrying more than $10,000 in cash or monetary instruments requires a report to CBP. The threshold applies to the combined total for a group traveling together, not per person, so a family cannot split $30,000 among three travelers to stay under the limit.2Office of the Law Revision Counsel. 31 USC 5316 – Reports on Exporting and Importing Monetary Instruments
“Monetary instruments” reaches well past paper bills. Traveler’s checks, money orders, personal checks, cashier’s checks, and negotiable instruments in any form all count. Foreign currency is included, converted to U.S. dollars. There is no cap on how much money you can legally bring in. The rule is disclosure, and you satisfy it by filing FinCEN Form 105 at the port of entry.
Skipping the report is where the numbers turn brutal. The civil penalty can equal the entire amount you were carrying, meaning the government can keep every dollar.3Office of the Law Revision Counsel. 31 USC 5321 – Civil Penalties CBP can also seize the unreported funds, and criminal prosecution is possible in serious cases.
All Food and Agricultural Products
Every food and agricultural item requires disclosure. Fresh fruits, vegetables, meats, dairy, eggs, plants, seeds, soil, insects, and anything made from animal or plant material all go on the form. Packaged and processed foods are no exception. CBP enforces these rules to keep foreign pests and animal diseases out of U.S. agriculture.4U.S. Customs and Border Protection. Bringing Food into the U.S.
Declaring a food item is not the same as losing it. A CBP Agriculture Specialist inspects what you brought and decides whether it can enter. Many commercially packaged foods pass. Fresh produce and raw meats are more likely to be restricted based on the country of origin and the pests or diseases active there. Declare everything and let the specialist decide. If you fail to declare a bag of fruit and an officer finds it, the fruit gets destroyed and you pay a minimum fine on top.
Alcohol and Tobacco
Returning U.S. residents 21 or older can bring back one liter of alcohol duty-free as part of the $800 exemption. You may import more than a liter, but the excess is subject to duty and federal excise tax collected at the port of entry. There is no federal ceiling on personal-use alcohol, though large quantities may prompt CBP to treat the import as commercial, which triggers licensing rules.5U.S. Customs and Border Protection. Bringing Alcohol Including Homemade Wine into the United States for Personal Use
Tobacco is stricter. Returning residents can bring up to 200 cigarettes and 100 cigars duty-free. Quantities above those limits are not simply taxed; they can be seized and penalized.6U.S. Customs and Border Protection. Carrying Tobacco Products to the United States
Nonresident visitors have different allowances: 50 cigars or 200 cigarettes or 2 kilograms of smoking tobacco, plus one liter of alcohol, all for personal use and not to be given away.7eCFR. 19 CFR 148.43 – Tobacco Products and Alcoholic Beverages Alcohol and tobacco must be declared even when the quantities fall within the duty-free limits.
Prescription Medications
Bring no more than a 90-day supply of any prescription medication, and keep it in the original pharmacy container with the prescription printed on the label. CBP and the FDA both recommend this, and it avoids the situation where an officer has to guess whether loose pills in a bag are what you say they are.8Food and Drug Administration. Traveling with Prescription Medications
Controlled substances get extra scrutiny. If you are carrying opioids, benzodiazepines, stimulants, or other Schedule II–V drugs, carry a copy of the prescription or a doctor’s letter in English. Medications not FDA-approved in the United States can be confiscated. If you take something uncommon in the U.S. or bought from a foreign pharmacy, bring documentation showing it was prescribed to you and what it treats.
Pets and Animals
Bringing a dog into the United States requires a CDC Dog Import Form for every animal. If the dog has spent the previous six months only in countries classified as rabies-free or low-risk, the form is enough. Dogs coming from high-risk rabies countries face additional requirements, including proof of vaccination and possibly a U.S.-issued rabies vaccination certificate. Show the completed form receipt to the airline before boarding and to CBP on arrival.9Centers for Disease Control and Prevention. CDC Dog Import Form and Instructions
Cats are far simpler. USDA’s Animal and Plant Health Inspection Service has no federal health requirements for importing a pet cat from a foreign country.10USDA APHIS. Pet Cats Imports into the US Declare the animal on your customs form anyway. Birds, fish, reptiles, other animals, and wildlife products have their own rules and may require permits from the U.S. Fish and Wildlife Service or USDA.
The $800 Exemption and What Duty Costs Above It
Most returning U.S. residents qualify for an $800 personal exemption. The first $800 in goods, measured at fair retail value in the country of purchase, enters duty-free. The exemption is available once every 31 days, and you generally must have been outside the country for at least 48 hours.11eCFR. 19 CFR Part 148 Subpart D – Exemptions for Returning Residents If you are returning from a U.S. insular possession such as the U.S. Virgin Islands, Guam, American Samoa, or the Northern Mariana Islands, the exemption rises to $1,600, though no more than $800 can come from goods acquired outside those territories.12U.S. Customs and Border Protection. Types of Exemptions
Goods valued above the exemption are not taxed at a punishing rate. The next $1,000 is assessed at a flat 3% of fair retail value, or 1.5% if you are returning from an insular possession. Only above the exemption and the $1,000 flat-rate window do regular tariff rates apply, and those vary widely by item.13eCFR. 19 CFR Part 148 – Personal Declarations and Exemptions The exemption changes what you owe. It does not change what you have to report. Everything you acquired abroad goes on the form.
Restricted and Prohibited Items Travelers Often Miss
Some items are banned outright, and others require permits. Even items that could enter legally with the right paperwork still have to be declared. Three categories catch travelers repeatedly.
Wildlife Products and Endangered Species
International treaties and U.S. law prohibit importing products made from protected species. Items made from ivory, tortoise shell, coral, reptile skin, whale teeth, and certain furs are restricted or banned. Most of the world’s wild cats are protected, including tigers, jaguars, leopards, and ocelots, so anything made from their skins or parts is off-limits. Fur from seals, polar bears, and sea otters is also prohibited.14U.S. Customs and Border Protection. Importing Endangered Species of Wildlife, Plants, Ivory, Exotic Skins A product being openly sold at a tourist market abroad does not make it legal to bring home.
Counterfeit and Trademarked Goods
Merchandise bearing a counterfeit trademark is subject to seizure and destruction. There is a narrow personal-use exemption: you may bring in one item of a given type bearing an unauthorized trademark, provided it accompanies you, it is genuinely for personal use and not for sale, and you have not used this same exemption for the same type of item within the past 30 days. One knockoff watch, not three.15Office of the Law Revision Counsel. 19 USC 1526 – Merchandise Bearing American Trademark Selling the exempted item within a year of importing it makes it subject to forfeiture.
Antiques and Cultural Property
Antiques over 100 years old can enter duty-free with proof of the item’s age. Cultural property that was stolen or illegally exported from its country of origin is subject to seizure regardless of how or where you bought it. The United States has bilateral agreements with numerous countries restricting the import of specific archaeological and ethnological material. If you buy antiquities abroad, the burden of showing legal provenance falls on you.16U.S. Customs and Border Protection. Duty on Personal and Commercial Imports of Antiques and Artwork
Penalties for Failing to Declare
Penalties scale with the violation, and they are steeper than most travelers expect. For ordinary undeclared goods, CBP can seize the item and impose a civil penalty equal to its full retail value. For undeclared controlled substances, the penalty is $500 or ten times the street value, whichever is higher.17Office of the Law Revision Counsel. 19 USC 1497 – Penalties for Failure to Declare Unreported currency over $10,000 can be forfeited in full.3Office of the Law Revision Counsel. 31 USC 5321 – Civil Penalties
Deliberately making false statements on a customs declaration or smuggling goods is a federal crime that can bring imprisonment and substantial fines. When in doubt, declare. The worst outcome of declaring something you did not need to is a short conversation. The worst outcome of not declaring something you should have is losing the item, paying a penalty worth more than the item, and possibly facing criminal charges.
How to File the Declaration
You have three ways to file, depending on how you enter and whether you belong to a trusted traveler program.
Paper Form 6059B
CBP Form 6059B is the traditional paper form handed out on international flights and available at ports of entry. One form covers a family traveling together. It asks for basic personal information, your flight and country of origin, and the yes-or-no screening questions. You list acquired goods and their values on the back and hand the form to a CBP officer with your passport at the inspection booth.18U.S. Customs and Border Protection. CBP Traveler Entry Forms You can also fill out the form electronically before your trip and print it.19U.S. Customs and Border Protection. CBP Form 6059B Customs Declaration
Global Entry Kiosks
Global Entry members skip the paper form. At the kiosk you scan your passport or permanent resident card, provide fingerprints, and answer the same customs questions on screen. If your imports exceed the personal exemption or you are carrying reportable currency, the kiosk prints a receipt directing you to the regular inspection lane. Otherwise you get a receipt and go straight to baggage claim.20U.S. Customs and Border Protection. Global Entry Information Guide
Mobile Passport Control App
The Mobile Passport Control app is free and does not require Global Entry. You answer the customs questions on your phone, take a selfie, and submit up to four hours before landing or right after. The submission stays active for four hours. One device can handle submissions for up to 12 people in a group. When you reach the CBP officer, your declaration is already in the system. The app does not replace required travel documents like a passport or ESTA, and it does not exempt you from any declaration requirement.21U.S. Customs and Border Protection. Mobile Passport Control
Whichever method you use, keep receipts for anything you bought abroad. A CBP officer can ask follow-up questions about any declared item, and documentation makes those conversations shorter. If an officer decides to inspect your luggage, cooperation and honest answers are the fastest way through.