United States customs rules & duty-free allowances
The U.S. enforces strict biosecurity rules: declare all agricultural items (food, plants, seeds, soil) or face fines up to $10,000. Cash over $10,000 must be declared on FinCEN Form 105. These rules apply to all non-resident adult travelers entering the U.S. in 2026.
Duty-free allowances
Prohibited — banned from import
- Illegal narcotics and drug paraphernalia
- Firearms and ammunition (unless with ATF permit and declared)
- Counterfeit currency, goods, or trademark-infringing items
- Endangered species products (e.g., ivory, tortoiseshell, furs) without CITES permit
- Certain agricultural products (e.g., fresh fruits, vegetables, raw meat) from restricted countries
- Obscene materials and child pornography
Restricted — allowed with a permit or declaration
- Prescription medications (especially controlled substances) – require DEA approval for >90-day supply
- Firearms and ammunition – must be declared and meet ATF requirements; some states ban certain types
- Plants, seeds, and soil – require USDA APHIS permit or inspection
- Drones and radio equipment – may require FCC approval for certain frequencies
- Cultural artifacts and antiques – may require export certificate from country of origin
Arriving: red vs green channel
After deplaning, follow signs to U.S. Customs and Border Protection (CBP). There is no red/green channel; all travelers must present a paper or electronic Customs Declaration (CBP Form 6059B) to an officer. If you have nothing to declare, simply answer truthfully and proceed.
Bringing medication
Personal medications in original containers with a prescription label are allowed for up to a 90-day supply. Controlled substances (e.g., opioids, stimulants) require prior approval from the DEA. Some common medications (e.g., codeine, diphenhydramine in large quantities) may be restricted. Always carry a doctor's note.
Food, plants & animal products
All food, plants, seeds, soil, and animal products must be declared. Banned items include fresh fruits/vegetables, most meats (especially pork from certain countries), and raw eggs. Processed, commercially packaged foods are generally allowed. Failure to declare can result in fines up to $10,000.
Rules worth knowing
Agricultural Declaration Required
You must declare all food, plants, seeds, soil, and animal products. Even a single apple from your flight can trigger a fine if not declared. The 'Don't Pack a Pest' campaign is serious.
Cash Declaration is Strict
Any monetary instrument over $10,000 USD (including checks, money orders, and traveler's checks) must be declared on FinCEN Form 105. Failure can lead to seizure and criminal penalties.
Gifts and Personal Goods Limit
Duty-free allowance is $800 retail value per person. Family members can combine exemptions (e.g., a family of 4 can bring $3,200 duty-free). Above $800, a flat 3% duty applies on the next $1,000, then standard rates.
State Laws May Apply
Even if federal customs allows an item, state laws may prohibit it (e.g., certain firearms, alcohol, or cannabis products). Check state regulations before bringing items.