United States customs rules & duty-free allowances
The biggest customs risk for visitors to the United States is underestimating how aggressively CBP enforces food and agricultural rules — a forgotten apple or a piece of salami can trigger an immediate fine at the border. The US also has no national tourist VAT refund, so do not expect to reclaim sales tax when you leave. These rules apply to non-resident adult travellers arriving on a temporary visit; US citizens and returning residents have separate, often more generous allowances.
Duty-free allowances
Prohibited — banned from import
- Narcotics and illegal drugs, including marijuana — even if legal in your home country or in some US states, it remains illegal under federal law at the border.
- Cuban cigars and Cuban-origin alcohol (with limited exceptions for travellers from Cuba).
- Meat and meat products from countries with certain animal diseases (e.g., foot-and-mouth disease).
- Most fresh fruits and vegetables from regions with plant pests or diseases.
- Soil, plants, seeds, and cut flowers that may carry pests.
- Counterfeit goods and pirated media (movies, music, software).
Restricted — allowed with a permit or declaration
- Firearms and ammunition — you must declare them and they are subject to strict regulations; some are prohibited.
- Certain prescription medications, especially controlled substances — need a valid prescription and may be limited.
- Live animals and pets — require health certificates and rabies vaccination proof.
- Cultural artifacts and archaeological objects — may require export permits from the country of origin.
- Drones — must comply with FAA regulations and may require registration.
Arriving: red vs green channel
After you clear immigration, you pick up your bags and go through customs. You'll fill out a customs declaration form (either on paper or via the CBP One app / APC kiosk). If you have nothing to declare and are under the limits, you can use the green channel or just hand your form to the officer. If you have items to declare, food, or more than $10,000 in cash, use the red channel and tell the officer. Random inspections happen, and lying on the form is a federal offence.
Bringing medication
You can bring personal prescription medication for your own use, but it must be in its original container with a valid prescription. You can bring up to a 90-day supply of non-controlled prescription drugs. Controlled substances (e.g., narcotics, stimulants, some sedatives) require a prescription and are limited to 50 dosage units unless you have a valid prescription for more. Some drugs that are legal in other countries are illegal in the US — check the DEA list. Never bring medication for someone else.
Food, plants & animal products
All food and agricultural products must be declared. Many are prohibited: fresh fruits and vegetables, meats (including jerky, salami, and canned meat), dairy products, and plants/soil are generally banned from most countries. Some items like baked goods, candy, and certain cheeses may be allowed. If you fail to declare, you face immediate fines starting at $300 and up to $1,000, plus possible confiscation. The US has zero tolerance for undeclared food.
Rules worth knowing
48-hour rule for the $800 exemption
You only get the $800 duty-free allowance if you have been outside the US for at least 48 hours and have not used the exemption in the past 30 days. If you're a frequent traveller or on a short trip, your limit is only $200.
Family members can combine exemptions
If you're travelling with family members (including children), you can combine your $800 exemptions to cover a single item worth more than $800, as long as each person is entitled to the exemption. For example, a family of four can bring in a $3,200 item duty-free.
Duty on excess is on the full value
If you exceed the $800 limit, you pay duty on the entire value of the item, not just the amount over $800. For example, a $1,000 item would be taxed on the full $1,000, not just $200.
No VAT refund for tourists
The United States does not have a national VAT refund scheme for tourists. Some states offer sales tax refunds for certain purchases, but this is rare and not available at the airport. Do not expect to reclaim sales tax when leaving.