What are Customs and Immigration in the Aiport?

“Immigration” is about the people traveling from one country to another. It’s sometimes called “passport control” or “border control” depending on the airport. “Customs” is about the stuff those people are carrying with them.

In many airports, immigration is a mandatory process that involves speaking with an immigration officer who stamps your passport, while customs is an optional process; if you have nothing to declare, you don’t need to speak with an officer. You can go through immigration without your luggage, but customs will be located after baggage claim.

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In most cases, you’ll go through airport customs and immigration after your flight first arrives in a new country, but there are exceptions. 

For example, some countries have mutual agreements intended to help speed travelers through the process, so you may go through customs and immigration before you board. When flying from Ireland to the United States, for instance, you’ll go through US customs in Ireland. But when arriving to the US from most other countries, you’ll go through customs upon your first arrival in the US (even if you have a connecting flight onward). 

And sometimes you don’t go through customs until you reach your final destination. For example, if you’re flying from the US to Europe and have a layover in one Schengen Area country before you arrive in a second Schengen Area country, you’ll typically go through immigration at the airport when you first land, but you won’t go through customs until you reach your final destination.

Upon arriving at the desk of an immigration agent in your destination airport, you’ll likely be asked a variety of questions (in some cases you may not be asked anything at all, but that’s increasingly rare). You may be asked whether your trip is for business or pleasure, how long you’ll be in the country, what you do for a living, and what cities you’ll be visiting during your stay.

When you go through the same process on your way home, you’ll be asked a similar set of questions—such as where you were on your trip, how long you spent there, and what you’re bringing back with you. This last question is often phrased as, “Do you have anything to declare?”

Customs fees, or customs duty, are essentially taxes on goods you bring with you across international borders. In most cases, goods that travelers bring back from vacation are meant for personal use and are in small enough quantities that they won’t incur any fees. In other cases, there’s a threshold above which travelers must pay a fee. Alcohol and tobacco, for instance, have a customs duty depending on how much you bring with you.

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It’s a little easier to talk about the things you can’t bring through US customs.

The United States limits the amount of alcohol travelers can bring with them into the country. You can bring one liter duty-free, and after which a customs duty of 3% per liter is imposed. Tobacco products also have individual limits, typically 200 cigarettes and 100 cigars per person. Anything above that, rather than being taxed, may be confiscated.

Meat and produce are generally prohibited, though there are some exceptions for cured or processed products depending on how they’re packaged. Cheese can be problematic, too.

Plants are a no-no (they might be ferrying unwanted pests), which means some crafts made from plant materials (like woven baskets or hats) aren’t going to make it through customs, either.

Depending on where you’re coming from, some pieces of art may get you into trouble at customs—because the country you’re departing has expressly forbidden items it deems “cultural treasures” to leave its borders.

Check the US Customs and Border Protection list of “Prohibited and Restricted Items” to find out what should (and shouldn’t) be on your shopping lists when you travel.

When you’re asked if you have anything to declare, these are some of the things that will require a “yes.”

• Anything you bought while traveling, either for your personal use or as a gift for someone else
• Any gifts you received while traveling
• Anything you inherited during the trip
• Anything you purchased in a duty-free shop
• Anything you’ll use for work, either to sell or use yourself, even if they’re items you brought with you from the US and you’re bringing them back
• Any food products, alcohol, or tobacco

You can read a more detailed list here.

If you have a prohibited item in your bag and you declare it, the only penalty is that you’ll need to give up that item.

If you’ve got something in your bags that you didn’t declare and you should have, the penalties can vary.

Without any prior record of trying to skirt customs rules, you may get a simple warning if all you did was forget to eat that French apple before you got on the plane. If it’s not your first time getting caught, however, you may well get hit with a fine of a few hundred dollars or more. Meat, cheese, and produce sometimes come with fines of as much as $10,000.

Because these infractions get recorded, you may get more intense scrutiny during customs or security checks on future flights for some time, and in some rare cases, travelers who have Global Entry or TSA PreCheck run the risk of having that “trusted traveler” status removed, losing their membership in the program, and being unable to get that status again for a set period of time.

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No, you generally do not go through US customs when leaving the country. Customs is typically handled upon arrival in your destination country. However, for certain flights (e.g., to Canada or other countries with preclearance), you may go through customs before departure.

You go through customs upon arrival in the country you’re visiting. This is the process of declaring any items you’re bringing into the country and paying any applicable fees. In some countries (like the US), customs is done after immigration when you first arrive.

Customs at the airport involves declaring any goods you're bringing into the country. After you collect your luggage, you go through a customs checkpoint where you'll be asked to declare items like gifts, food, or alcohol. Customs officers may inspect your bags, and if you’ve exceeded allowances or brought prohibited items, you may be fined or have items confiscated.

Immigration refers to the process where a traveler is checked by an immigration officer upon arrival in a country to verify their identity, purpose of visit, and right to enter. This process often involves showing your passport, visa (if required), and answering questions regarding your stay.

The main purpose of immigration is to ensure that travelers meet the legal requirements to enter a country, including having the correct documentation (e.g., passport, visa), and to check if they pose any security risks or health concerns to the country they are entering.

Yes, everyone arriving in a foreign country must go through immigration. However, certain travelers, like those from visa-waiver countries or holders of special permits, may go through a faster process. Some countries may have expedited lanes for residents or frequent travelers (e.g., Global Entry).

Immigration refers to the process of entering and staying in a foreign country. This includes verifying your legal right to enter (through your passport, visa, etc.), inspecting travel documents, and ensuring compliance with immigration laws.