Two checks happen when you land and they ask different questions. Immigration asks whether you may enter. Customs asks what you have brought with you. They are staffed by different agencies, they have different powers, and a problem with one has nothing to do with the other. 203 of the 211 destinations the U.S. State Department covers mention customs in their entry information, which is a good indication of how routinely the second check matters.
The short version
- Immigration is about you. Customs is about your bags. Two checks, two questions, two sets of consequences.
- Answer immigration’s questions plainly: why you are here, how long, where you are staying, and how you are leaving.
- Declare when in doubt. Declaring something permitted costs a minute. Not declaring something prohibited costs considerably more.
- Currency has thresholds. Carrying cash is legal; carrying it undeclared above a limit frequently is not.
- Coming home is a border too, with its own allowances and its own declaration.
What You Need to Know
Immigration control decides admission. The officer checks your passport, your entry permission, and the consistency of your account of the trip. Most of the questions have obvious answers, and the reason they are asked is that inconsistent answers are the usual sign of something else going on.
Customs control decides what may cross the border with you. It concerns prohibited items, restricted items, quantities above a duty-free allowance, cash above a declaration threshold, and agricultural products. It is not primarily about tax; the enforcement most travelers actually meet is biosecurity, because food, seeds, plants and animal products move pests and disease.
What immigration asks, and why
Purpose of visit, length of stay, address, and how you intend to leave. Answer briefly and accurately. A traveler who describes a work assignment while holding a tourist visa, or who cannot name where they are staying, or who has no onward ticket, has given the officer a reason to look further, which is what the questions are for.
What customs is looking at
Food and plant material first, then quantities of alcohol and tobacco, then goods above the value allowance, then currency, then anything on a country-specific prohibited list. The categories vary by destination and are published by each customs authority.
What to Do Before Your Trip
- Read the destination’s customs rules, particularly on food, plant and animal products, before packing rather than before landing.
- Find the currency declaration threshold for the countries you enter and leave. 6 destinations mention a currency declaration in their entry information, and many more publish one through their customs authority.
- Know your own allowances for returning home, which U.S. Customs and Border Protection publishes in its Know Before You Go guidance.
- Have your accommodation address written down, because arrival forms ask for it and phones are frequently off.
- Keep your onward ticket reachable without an internet connection.
- Check prescription medication rules for your destination, since some ordinary medications are controlled elsewhere.
- Pack so that anything declarable is accessible, not at the bottom of a case.
Arriving as a group? Twenty travelers clearing two checks is a scheduling question as much as a compliance one, and the first evening’s plan is usually what pays for getting it wrong.
Explore group travel planningImportant Considerations
Declaring is not admitting to something
A declaration is a statement, not a confession. Most declared items are permitted and are waved through. The penalty regimes attached to undeclared items exist because non-declaration is the offense, independently of whether the item would have been allowed. This is the single most useful thing to understand about customs.
Food is the usual failure
The sandwich left in a bag, the fruit taken from the aircraft, the meat or cheese brought as a gift. Biosecurity rules are strict in many countries and fines are issued for items of no value, because the risk being managed is agricultural rather than fiscal. Empty your bag of food before you land.
Currency
Carrying cash is lawful. Carrying it above a threshold without declaring it frequently is not, and thresholds apply on the way out as well as on the way in. The amount is per traveler in some places and per family or group in others, which is worth checking if you are carrying a group’s cash.
Exit is a border too
Some countries check documents on departure, some charge a departure tax at the airport, and some enforce export restrictions on antiquities, wildlife products and cultural items. A souvenir that was legal to buy is not necessarily legal to export, and the buyer’s assurance is not a defense.
Coming home
Returning to the United States means a further customs check with its own allowances and its own declaration. The rules for what you may bring back, and what must be declared, are published by U.S. Customs and Border Protection and are worth reading before you shop rather than after.
Tips for Group Travelers
- Brief the group before landing: two checks, what each asks, and what to declare.
- Tell people to empty food from their bags before arrival. It is the most common fine and the easiest to avoid.
- Do not carry the group’s cash as one undeclared sum. Thresholds may apply to the carrier, not to the group.
- Give every traveler the accommodation address on paper for arrival forms.
- Allow a realistic clearance time in the arrival-day schedule, especially where an on-arrival visa desk comes first.
- Let each traveler answer for themselves. A leader answering on behalf of an adult traveler creates the impression the officer is looking for.
Common Mistakes to Avoid
- Treating the declaration form as a formality. It is a legal statement and it is the thing enforced.
- Carrying food without thinking about it. Fruit from the plane counts.
- Volunteering an elaborate account at immigration. Brief and accurate answers are what is wanted.
- Assuming duty-free means unlimited. It is an allowance with a number attached.
- Carrying a group’s cash undeclared because it is not all yours.
- Buying a souvenir that cannot legally leave the country. Ask about export restrictions before paying.
Frequently Asked Questions
What is the difference between customs and immigration?
Immigration decides whether you may enter the country; customs decides what may come in with you. You will normally pass immigration first with your passport and entry permission, then collect your luggage and pass customs. They are separate agencies with separate powers, and satisfying one says nothing about the other.
What questions will I be asked at immigration?
Why you are visiting, how long you are staying, where you are staying, and how you are leaving. Answer briefly and accurately, and have the accommodation address and onward ticket to hand. The questions are simple; the reason they are asked is that inconsistent answers are what the officer is listening for.
Should I declare something if I am not sure?
Yes. Declaring an item that turns out to be permitted costs you a minute. Failing to declare an item that turns out to be prohibited is the offense, and the penalty does not usually depend on the value of the item. When in doubt, tick the box and ask.
How much cash can I carry?
As much as you like, but above a threshold you must declare it, and thresholds apply when leaving as well as arriving. The figure varies by country, and in some places it applies per family or group rather than per traveler. Check both your destination’s customs authority and, for the return, U.S. Customs and Border Protection.
Can I bring food back home?
Some, and less than most travelers assume. Meat, many dairy products, fresh fruit and plant material are commonly restricted, and the rules are about agricultural risk rather than value. U.S. Customs and Border Protection publishes what may be brought in; read it before you buy something at a market on the last day.
Related Travel Tips
- Passports, visas and entry requirements, the section this guide belongs to.
- Visa vs. eVisa vs. Visa on Arrival. What happens before you reach the immigration desk.
- International Vaccination Documentation. The other document checked on arrival.
- Getting Around in Another Country, for what happens after you clear both.
Plan Your Trip With LABUSA Travel
Arrival is the part of an itinerary most likely to run late and least likely to have been planned in detail. LABUSA Travel builds realistic clearance times into arrival days, and briefs groups on what the two checks will ask before anybody is standing in the queue.
Talk with a LABUSA Travel advisor about a trip you are considering, or read about our group travel service if you are arriving with a party.
Verify Before You Travel
Customs allowances, prohibited items and currency thresholds are set by each country and change. Confirm your destination’s rules with its customs authority and its embassy or consulate, check the country information published by the U.S. Department of State, and read U.S. Customs and Border Protection’s Know Before You Go guidance for the return journey. This page is general guidance, not advice about your specific trip.
Travel requirements, health guidance and safety conditions can change. Always confirm current requirements with the appropriate government or official authority before departure.