Updated October 27, 2026

What CBP officers ask at the US border

At the US border, a CBP officer at primary inspection checks who you are, your citizenship, whether you can enter, and what you're bringing. For visitors and students, a DHS page lists the usual questions: the purpose of your visit, how long you'll stay, where you'll stay, whether you can support yourself, and whether your documents match your purpose. A visa lets you travel to a US port of entry and ask to come in, but it doesn't guarantee entry. The CBP officer decides. Keep your answers short and true, and declare what you're carrying.

What happens at primary inspection

A port of entry is any place you can legally enter the United States: an airport, seaport or land border crossing. CBP says it runs 328 main ports of entry.

Everyone arriving is subject to inspection. CBP describes the first stop, "primary inspection," this way: officers generally inspect all travelers to determine their identity, their citizenship, their eligibility to enter, whether anything they're carrying is prohibited or owes duty, and any violations of the laws CBP enforces. One officer handles the immigration, customs and agriculture parts of the check.

If you're not a US citizen, CBP says you must "establish your admissibility to the satisfaction of the CBP officer." If you're admitted, the officer gives you an admission stamp, and your Form I-94 arrival record is created electronically. It shows how long you can stay. CBP officers, not the consular officer who issued your visa, decide that.

How CBP picks people for closer checks. CBP says officers talk with travelers and closely examine documents to find people who are improperly documented, and that some referrals are completely random.

US customs questions for visitors

These five questions come from Study in the States, a DHS site. It lists them as questions a CBP officer may ask at primary inspection. They apply to most visitors, including B1/B2 travelers.

"What is the purpose of your visit to the United States?"

• Why they ask: your purpose has to match your visa. A B-2 is for tourism or family visits, a B-1 for business meetings, not work.
• What a strong answer does: names the purpose in one sentence that matches your visa and the reason you gave when you applied.
• Where it comes from: listed by Study in the States (DHS).

"How long do you plan to visit?"

• Why they ask: the officer sets your admit-until date on your I-94, so they need your plan.
• What a strong answer does: gives an exact length or return date, backed by your return ticket if you have one.
• Where it comes from: listed by Study in the States (DHS).

"Where will you be staying?"

• Why they ask: a real address supports a real plan.
• What a strong answer does: names the hotel or the person and city, with the address handy.
• Where it comes from: listed by Study in the States (DHS).

"Do you have the means to support yourself financially in the United States?"

• Why they ask: the officer wants to know you can pay for the trip without working.
• What a strong answer does: says plainly who pays and roughly how, without a stack of papers unless asked.
• Where it comes from: listed by Study in the States (DHS).

"Do the documents you present match the purpose and intent of your visit?"

• Why they ask: this is the officer's own check, more than a question to you. Your visa, ticket and story should all point the same way.
• What a strong answer does: keeps every answer consistent with your visa type and your DS-160.
• Where it comes from: listed by Study in the States (DHS).

"Are you bringing any food, plants or animal products? Are you carrying more than $10,000?"

• Why they ask: the customs and agriculture parts of inspection. CBP requires travelers to declare these items, and to report currency over $10,000.
• What a strong answer does: says yes to anything you have and lets the officer decide. When in doubt, declare it.
• Where it comes from: officers commonly ask about this because CBP says the officer checks your goods at primary inspection.

Questions for F-1 students arriving in the US

New students can enter up to 30 days before the program start date on their signed Form I-20. Study in the States says you'll show these at primary inspection:

• a valid passport
• a valid visa
• a signed Form I-20 from your SEVP-certified school

It also says to keep these on hand: your designated school official's (DSO) name and contact details, including an after-hours number, your acceptance letter, proof you paid the I-901 SEVIS fee, and proof you can cover tuition and living costs. That can be the same proof you used at your visa interview. Keep all of it in your carry-on, not your checked bag.

"Can I see your I-20?"

• Why they ask: Study in the States says a CBP officer will tell you to present your Form I-20 at the port of entry.
• What a strong answer does: hands over the signed original right away. It shouldn't be packed away.
• Where it comes from: described by Study in the States (DHS).

"What school are you going to, and when does your program start?"

• Why they ask: the officer checks your purpose and that you're within 30 days of your start date.
• What a strong answer does: names the school, program and start date exactly as your I-20 shows them.
• Where it comes from: officers commonly ask about this. Study in the States says officers may ask about your reason for travel and check your I-20.

"How are you paying for your studies?"

• Why they ask: support is one of the listed checks, and Study in the States tells you to carry proof of funds.
• What a strong answer does: names your sponsor or source in one sentence and matches your I-20.
• Where it comes from: officers commonly ask about this. Study in the States lists means of support and proof of funds.

"Who is your designated school official?"

• Why they ask: if the officer needs to verify your information, they may contact your school.
• What a strong answer does: gives the DSO's name and a number that works, even at night or on weekends.
• Where it comes from: officers commonly ask about this. Study in the States tells students to carry the DSO's details for this reason.

Returning students. Before you travel, ICE says your I-20 needs a DSO travel signature, your SEVIS record must be up to date, and you should have been away less than five months. Bring proof of funds again. ICE also notes DHS published a final rule on July 17, 2026 setting a fixed period of admission for F students. Ask your DSO how it affects the date on your I-94.

After you land. Check your I-94 online. Study in the States says it's important that the information on it is correct, because mismatches with SEVIS can cause problems later, such as with a Social Security number.

Questions for workers

The State Department's rules are the same for temporary workers: a visa lets you travel to a port of entry and ask to enter, and CBP officers there "have authority to permit or deny admission." CBP says its officers must decide whether a foreign traveler meets the requirements for admission under US immigration law.

CBP doesn't publish a separate question list for workers. Expect the same core checks as any visitor, about purpose, length of stay and whether your documents match your purpose, applied to your job.

"Who is your employer, and what will you be doing?"

• Why they ask: your purpose has to match your visa class, and the officer decides whether you meet its requirements.
• What a strong answer does: names the employer and your role in one sentence, matching your petition and visa.
• Where it comes from: officers commonly ask about this. CBP says officers decide whether you meet the requirements for admission, and Study in the States lists purpose and matching documents as checks.

Before you leave the port, check that your stamp and I-94 show the right class and date. You must leave by the date on your admission stamp or I-94, or ask USCIS for an extension. Staying past it voids your visa under US law.

Secondary inspection

Being sent to "secondary" doesn't mean you did something wrong. CBP says officers at primary have "broad discretion" to refer travelers, with or without any suspicion. Its listed reasons:

1. to address issues with your documents or information
2. to look into possible administrative immigration violations
3. to ask about possible violations of laws CBP enforces
4. at random
5. when the primary officer thinks more inspection is needed
6. when the officer gets an alert that needs a closer look

CBP says 11,612,366 of the 419 million travelers it processed in fiscal year 2025, about 3%, were referred to secondary.

For students, Study in the States says the officer will first try to verify your status in SEVIS, and may call your school. If something is missing, the officer may let you in on a Form I-515A, which gives you 30 days to send the missing documents to SEVP with your DSO's help. The officer can also refuse entry.

If you're found inadmissible, CBP says you could be placed in removal proceedings. In some cases the officer may let you withdraw your application for admission. Either way, it can affect future trips and may cancel your visa. CBP says it can't give legal advice, so talk to a lawyer if you have concerns before you travel.

Electronic device searches at the US border

CBP's own policy page covers this.

• They're rare. CBP says it searched the devices of 55,318 international travelers in fiscal year 2025, less than 0.01% of arriving international travelers. 92% of those were "basic" searches.
• Basic vs advanced. A basic search means an officer looks through the device by hand. An advanced search means connecting equipment to copy or analyze it, and CBP policy requires reasonable suspicion or a national security concern plus a senior manager's approval.
• Passwords. CBP says all travelers must present devices and their contents in a condition that allows inspection. A locked device may be detained. For non-citizens, CBP may consider a refusal when deciding admissibility. A US citizen won't be denied entry for it, but the device may be kept.
• Only what's on the device. Officers disable network connections, for example with airplane mode, and may not use your device to reach data stored only in the cloud.
• Notice. CBP says it gives notice before a device search begins, usually with a tear sheet explaining the search and how to seek redress.

The rules are in CBP Directive No. 3340-049B, Border Search of Electronic Devices.

What to declare at US customs

CBP's main rules for travelers:

• Food, plants and animal products. All travelers must declare meats, fruits, vegetables, plants, seeds, soil, animals and plant and animal products, including soup. Declare out loud to the officer or in the CBP mobile app. Undeclared prohibited items are taken and civil penalties may apply.
• Money over $10,000. It's legal to carry any amount, but more than $10,000 total, in cash or monetary instruments, must be declared and reported on FinCEN Form 105.
• Everything else. Some goods are prohibited or need a permit. Check CBP's prohibited and restricted items page before you pack.
• Global Entry members too. CBP says members must still declare all agricultural products.

Students fill out the customs declaration, Form 6059B, or its kiosk or app version, which tells the officer what you're bringing in.

This is interview practice, not legal advice. For questions about your own case, talk to an immigration attorney. Visaful is not affiliated with U.S. Customs and Border Protection, the Canada Border Services Agency, the U.S. Department of State or any government agency.