Can I Be Denied Entry to the U.S.?

Whether you can be turned away at the border is one of the sharpest citizen vs. noncitizen divides in the law. Knowing which rule applies to you is essential before you travel.

What the Law Says

• U.S. citizens cannot be denied entry. If you are a citizen returning from abroad, you must be allowed back into the country. You will still need to prove your citizenship (a passport), and you might face questioning or secondary inspection — but you cannot be turned away.
• Green-card holders (lawful permanent residents) have the right to travel and return, but are not automatically guaranteed reentry. They can be questioned and, in some cases, denied — for example, for staying abroad too long, certain crimes, or being found “inadmissible.” Crucially, a green card cannot be revoked without a hearing before an immigration judge.
• Visa holders have the least protection — they can be denied entry at the officer’s discretion if found inadmissible.

An Everyday Example

Two travelers return from the same trip. The U.S. citizen must be admitted (after proving citizenship). The green-card holder generally will be admitted too, but is not guaranteed it — and if there is an issue, they keep the right to a hearing before an immigration judge rather than simply losing their status at the airport.

What This Means for You

If you are a citizen, you cannot be locked out. If you are a permanent resident, you have strong protections — including a judge hearing before any loss of status — but reentry is not automatic, so a reentry permit can help for long trips. Because enforcement has tightened and the stakes are high, noncitizens should consult a licensed immigration attorney before traveling.

This area of law is shifting and varies by situation. Consult a licensed immigration attorney.