What Documents Do I Need to Show When Entering Canada with an eTA?

You’re packing for your flight to Canada and you have your eTA approval email. But the eTA itself isn’t a document you carry—it’s electronically linked to your passport. Here’s what you actually need to show, and the one check you must do before leaving home.

The short answer: your passport is the only mandatory document at both the airline counter and the Canadian border. Everything else depends on your situation. But that passport has to be the exact one tied to your eTA, and if the numbers don’t match, an approval email won’t save your trip. This all assumes you need an eTA in the first place — permanent residents don’t, though they carry a different document instead, as covered in our guide on returning to Canada as a PR without a PR card.

Your eTA is not a document—your passport is

There’s nothing to print. No eTA card, no approval certificate to laminate and carry in your bag. The authorisation exists as a record in a database, attached to the passport number you submitted when you applied. When airline staff scan your passport and when a border officer checks your identity, the system confirms the link automatically.

That design works well when everything is correct—and becomes quietly catastrophic when it isn’t. If you applied with a typo in your passport number, or if you’ve since renewed your passport and forgot to apply again, the scan will return no valid eTA. At that point, you’re not boarding.

Understanding what your eTA approval email actually contains helps here—it includes the passport number the eTA is attached to, which is exactly what you need for the check described in the next section.

Check your passport number against your approval before you leave

This is the one pre-travel action that prevents a travel-blocking mistake. Open your eTA approval email and find the passport number recorded there. Then pick up your physical passport and read the number on the data page. They must match character for character.

If they don’t match—whether because of a typo on the application, a passport renewal since approval, or a dual-nationality situation where you used a different passport—your eTA is not linked to the document you’re travelling on. An airline agent scanning the wrong passport will see nothing. A border officer will see nothing.

The fix is a new eTA application using the correct passport number. The problem is timing: getting a replacement is not guaranteed at the last minute, and leaving this discovery to the day before departure puts your travel at serious risk. Check the numbers now, not at the airport.

If you’re a dual national, the passport question has an extra layer—which passport you use for a Canadian eTA determines which one must be in your hand at check-in and at the border. If you’ve already noticed a mismatch, the article on what to do when your eTA has the wrong passport number covers your options.

At the airline counter: what you’ll show

When you check in for a flight to Canada, you present the passport linked to your eTA. That’s it. Airline staff will scan it to confirm a valid eTA is attached, and once it’s confirmed, you’re cleared to board from a travel-authorisation standpoint.

You don’t hand over anything else at this stage—no printout, no reference number, no supporting paperwork. The scan either returns a valid eTA or it doesn’t. If you want to check your eTA status before heading to the airport to confirm everything is in order, that’s a reasonable step, particularly if you applied recently or made any changes.

Bring that same passport onto the plane. The document you check in with is the one you’ll hand to the border officer on arrival.

At the Canadian border: what an officer may ask for

A border services officer will ask to see your passport and may ask for other travel documents. They’ll check your identity to confirm you are the person the eTA was approved for, and they’ll assess whether you meet all entry requirements. The eTA being valid doesn’t end that conversation—it just gets you to it.

The officer is looking at the full picture: who you are, why you’re visiting, how long you plan to stay, and whether you’ll leave when you’re supposed to. You need to convince them you’re eligible and that you’ll depart at the end of your approved stay. Most visitors are allowed to stay for up to six months, though an officer can limit or extend that depending on the purpose of your visit.

If you don’t receive a stamp in your passport, the default is six months from your entry date or until your passport expires, whichever comes first. You can ask an officer for a stamp if you need a record of your entry date.

One thing that surprises some travellers: if an officer asks to examine your phone or laptop, you’re obligated to provide your password. That authority exists at the border regardless of what documents you’re carrying.

Situational documents: when to pack them

“Supporting documents” isn’t a fixed list—it’s a category that depends on your circumstances. The officer at the border decides what to ask for, and what you’re able to produce in that moment matters. Packing the relevant documents for your situation isn’t about following a checklist; it’s about being able to answer the officer’s questions with evidence rather than just words.

The minor-child documents deserve particular attention. A child travelling with one parent, or with neither parent, faces more scrutiny than a family travelling together. An officer may want to see written consent from the absent parent, and if custody arrangements are relevant, a court decree settles questions that a verbal explanation won’t. Pack these documents even if you think the situation is obvious—what’s obvious to you isn’t evidence.

An invitation letter is in a slightly different category. It’s not required, but if you received one and you’re asked about the purpose of your visit, handing over the letter is cleaner than describing it. Bring it.

What a valid eTA does not guarantee

A valid eTA and a valid passport get you to the border. They don’t guarantee you cross it. The border services officer makes the final call on whether you’re admitted, and that decision rests on whether you meet all entry requirements at the time of arrival—not just whether your paperwork was approved in advance. Our guide on what an approved eTA does and doesn’t guarantee at the border covers exactly what still depends on that officer’s decision.

Entry can be refused if you provide false or incomplete information, if you can’t demonstrate ties to your home country, if there are health or financial concerns, or if there are criminal or immigration-related issues in your background. The eTA approval process doesn’t clear all of those questions; it clears the travel-authorisation question. The rest gets assessed at the border.

This is why the situational documents matter beyond just satisfying a checklist. A return ticket, a bank statement, or an invitation letter doesn’t just answer a bureaucratic question—it supports the case you’re making to an officer that your visit is what you say it is and that you’ll leave when you’re supposed to.

Key Takeaways

• The eTA is linked to your passport number, not to any document you carry—your passport is the anchor at both checkpoints, and it must be the same passport used for the application.
• A passport-number mismatch discovered at the airport is a serious problem with no guaranteed quick fix; the time to catch it is before you leave home.
• Airline staff confirm the eTA link by scanning your passport; border officers then assess whether you meet all entry requirements—these are two separate gates.
• Situational documents (parental consent, invitation letters, proof of funds, onward tickets) aren’t bureaucratic extras; they’re the evidence that answers an officer’s questions about your visit before those questions become a problem.
• A valid eTA does not guarantee entry—the border services officer makes the final determination on arrival.