Your driver's license alone is not enough to cross most U.S. borders

A standard driver's license proves you can drive, but it does not prove you are a U.S. citizen or that you have the right to enter another country. When you cross into Canada or Mexico by car or on foot, border agents need to confirm your citizenship and your identity. A driver's license does neither of those things reliably enough for border officials.

What you actually need depends on which country you are crossing into, how you are traveling, and whether you are a U.S. citizen. The rules are different for Canada than for Mexico, and they change based on whether you are driving, walking, or flying. Understanding which document works for your specific trip saves you from turning back at the border.

Key Takeaways

  • A driver's license is not a valid travel document at the U.S. border; you need a passport, passport card, REAL ID-compliant driver's license, or Enhanced Driver's License depending on the country and how you are traveling.
  • For Canada by car or foot, U.S. citizens can use a passport, passport card, Enhanced Driver's License, or NEXUS card, but a standard driver's license will not work.
  • For Mexico by car or foot, U.S. citizens need a passport or passport card; an Enhanced Driver's License does not work for Mexico.
  • If you are not a U.S. citizen, the rules are stricter and depend on your visa status and country of origin.
  • A REAL ID-compliant driver's license (marked with a gold star) is not the same as an Enhanced Driver's License and does not work at land borders.

Crossing into Canada by car or on foot

Canada accepts four types of documents from U.S. citizens at land borders: a passport, a passport card, an Enhanced Driver's License, or a NEXUS card. A standard driver's license—even one marked as REAL ID-compliant—will not work. The Canadian border agent will turn you back.

An Enhanced Driver's License is different from a REAL ID driver's license. An Enhanced Driver's License has a special marking (usually a star or enhanced designation) and is issued only by certain states. Not all states offer them. If your state does, you can request one at your DMV, though the process takes several weeks and costs more than a standard license. Check your state's DMV website to see if Enhanced Driver's Licenses are available where you live.

A NEXUS card is a trusted traveler program card issued by U.S. Customs and Border Protection. It speeds up the crossing process but requires an in-person interview and a background check. Most people get a passport or passport card instead because they are simpler to obtain.

Crossing into Mexico by car or on foot

Mexico requires a passport or passport card from U.S. citizens. An Enhanced Driver's License does not work for Mexico, even though it works for Canada. A standard driver's license will not work either. If you do not have a passport, you will need to get one before you can cross.

A passport card is smaller and cheaper than a full passport book, and it works for land and sea travel to Mexico and Canada. It does not work for air travel. If you think you might fly internationally in the future, a full passport book is worth the extra cost and time, because you will need it anyway.

What to do if you do not have a passport

Getting a passport takes time. A standard passport book takes 4 to 6 weeks through the mail, or 2 to 3 weeks if you pay for expedited processing. A passport card takes the same amount of time. During peak travel seasons (spring and summer), processing times are longer. You cannot rush a passport process the day before you travel.

If you need to cross the border soon and do not have a passport, check whether your state offers an Enhanced Driver's License. Some states can issue them faster than the federal government issues passports, though you still need to plan ahead. Call your state DMV to ask about processing times.

If you are not a U.S. citizen, the rules are different and depend on your visa status, country of origin, and which country you are crossing into. Contact the embassy or consulate of the country you plan to visit, or call U.S. Customs and Border Protection at 1-877-CBP-5511 to ask about your specific situation.

The difference between REAL ID and Enhanced Driver's License

A REAL ID-compliant driver's license has a gold star or special marking and meets federal security standards. It works for domestic air travel within the United States. It does not work at the U.S. border with Canada or Mexico. Many people confuse the two because both have special markings and both cost extra.

An Enhanced Driver's License also has a special marking and costs extra, but it is issued by individual states and contains biometric data. It works at land borders with Canada (but not Mexico). If your state offers both, they are two separate documents. Ask your DMV which one you need based on where you plan to travel.

Traveling with children

Children need their own travel documents. A child cannot cross the border on a parent's passport or ID. Each child needs a passport, passport card, or (for Canada only) an Enhanced Driver's License or NEXUS card. Infants and newborns need passports too.

If you are traveling with a child who is not your own, you may need additional documents. Some countries require a notarized letter from the child's parent or guardian giving permission for the child to travel. Ask the country's consulate before you travel.

What happens if you try to cross without the right document

Border agents will not let you through. You will be turned back at the border, and you will not be able to re-enter the country you were trying to visit. If you drove, you will have wasted gas and time. If you were flying to a connecting flight, you may miss it. There is no exception or override—the rules are the same for everyone.

If you are turned back, you can try again once you have the correct document. There is no penalty for attempting to cross without proper ID, but you cannot cross until you have it.

Frequently Asked Questions

Can I use my passport card instead of a full passport?

Yes, a passport card works for land and sea travel to Canada and Mexico. It is smaller, cheaper, and faster to get than a full passport book. The only downside is that it does not work for air travel. If you might fly internationally, get a full passport instead.

Do I need a passport if I have an Enhanced Driver's License?

For Canada, no—an Enhanced Driver's License is enough. For Mexico, yes—an Enhanced Driver's License does not work for Mexico, so you need a passport or passport card. Check which country you are crossing into.

How long does it take to get a passport?

Standard processing takes 4 to 6 weeks. Expedited processing takes 2 to 3 weeks and costs extra. During busy seasons, both take longer. explore as soon as you know you need to travel, not the week before your trip.

What if I lost my passport at the border?

Contact the U.S. State Department's emergency passport services when ready. You can get an emergency passport replacement at a U.S. embassy or consulate if you are outside the country. If you are still at the border, ask the border agent for help locating it or contact the local police.

Can I cross the border with just a birth certificate?

No. A birth certificate proves citizenship but not identity. Border agents need a photo ID that proves both who you are and that you are a U.S. citizen. A passport, passport card, or Enhanced Driver's License does both. A birth certificate alone does not.