By Rick Steves
You are allowed to take home $800 worth of items per person duty-free, once every 30 days (family members can combine their individual $800 exemptions on a joint declaration). The next $1,000 is taxed at a flat 3 percent. After that, you pay the individual item's duty rate. You can also bring in duty-free a liter of alcohol (slightly more than a standard-size bottle of wine; you must be at least 21), 200 cigarettes, and up to 100 non-Cuban cigars.
Because food items can carry devastating diseases or pests, they are strictly regulated. You may take home vacuum-packed cheeses; dried herbs, spices, or mushrooms; and canned fruits or vegetables, including jams and vegetable spreads. Baked goods, candy, chocolate, oil, vinegar, mustard, and honey are OK. Fresh fruits and vegetables (even that banana from your airplane breakfast) are not permitted. Meats are generally not allowed, though canned pâtés from some countries are usually permitted if made from geese, duck, or pork — but not beef. Just because a duty-free shop in an airport sells a food product, it doesn't mean it will automatically pass US customs. Be prepared to lose your investment.
Of course, you'll need to carefully pack any bottles of wine, jam, honey, oil, and other liquid-containing items in your checked luggage, thanks to limits on liquids in carry-ons.
To check US customs rules and duty rates, visit www.cbp.gov.