Before you open the application form, stop and confirm one thing: is an eTA actually the document you need? This is the error that wastes the most effort. Eligibility first, form second. An eTA only covers air travel to Canada as a visitor — if you’re transiting, studying, or working, or if your nationality puts you in a different category entirely, you may need something else altogether. Confirm that now, before you type a single character into a form.

If you’ve confirmed an eTA is right for you, the rest of this checklist is organized by when each check matters: before you open the form, while you’re filling it in, after you submit, and the morning before you travel.

Before you open the form: confirm eligibility

The eligibility question isn’t always as simple as “which country is my passport from.” A few situations catch people off guard.

Dual nationals need to be careful about which passport they use. If you hold Canadian citizenship alongside another nationality, you can no longer fly to or through Canada using a non-Canadian passport — you need a valid Canadian passport to board. That means you don’t need an eTA at all; you need your Canadian passport. The one exception worth knowing: Canadian-American dual citizens can fly to Canada on either a valid U.S. passport or a valid Canadian passport, but travelling on the U.S. passport means carrying proof of Canadian citizenship and potentially going through immigration screening on arrival.

US visa holders sometimes qualify for an eTA even when their nationality wouldn’t normally. If that situation applies to you, it is worth reviewing the relevant rules around eTA eligibility before you apply.

Travel restrictions are in effect for certain countries. As of May 27, 2026, foreign nationals living in the Democratic Republic of the Congo, South Sudan, and Uganda cannot travel to Canada. Additionally, as of July 20, 2026, foreign nationals who have visited the DRC within the past 21 days cannot travel to Canada. If either of these applies to you, an eTA application won’t resolve it.

Inadmissibility is a separate layer. Even if your nationality qualifies, Canada can refuse entry for reasons including criminal history, health grounds, financial reasons, security concerns, or involvement in human rights violations or organized crime. The eTA application will ask about some of these directly. Answer honestly — providing false or incomplete information means you will not be allowed into Canada, regardless of what the eTA itself says.

Only once you’ve confirmed none of these apply should you move to gathering your documents.

Before you open the form: gather what you need

The application itself is short, but having the wrong information in front of you when you fill it in is how errors happen. You need three things to apply: a valid passport, a credit or debit card, and an email address.

Close-up of several old, open books with yellowed pages on a wooden surface.

That sounds minimal, but “valid passport” carries weight here. Check the following before you sit down to apply:

  • Your passport is currently valid.
  • You have the physical passport in front of you — not a photo of it, not a scan from memory. You’ll be entering the passport number character by character, and one transposition can create a problem that’s difficult to fix in time.
  • If you hold more than one passport, you’ve confirmed which one to use (see the dual-nationality point above).
  • The email address you plan to use is one you check regularly, including its junk or spam folder. The decision email comes from an automated system, and spam filters catch it often enough that it’s worth setting up a filter or whitelist in advance.

If you’re travelling with a child under 18, you may need to carry supporting documents at the border — a letter from one or both parents authorizing travel, custody papers, or adoption documents depending on your situation. The eTA application doesn’t ask for these, but a border services officer can ask to see them on arrival.

During the form: what to verify as you go

The application asks a few questions and collects your passport details and contact information. The form is not long, but the margin for error on passport data is zero.

As you enter your information:

  • Passport number: type it directly from the physical document, not from memory or a previous application. The number in your eTA must match the number in your passport exactly. A mismatch may prevent you from travelling to Canada, and correcting it after approval requires reapplying — which may not be possible at the last minute.
  • Name: enter it exactly as it appears in your passport, including any middle names or initials that are printed there. The same logic applies: the document you hand to the airline agent must match what’s in the system.
  • Email address: double-check it before submitting. This is the only way you’ll receive your decision, and there’s no easy way to update it after submission. If you mistype it, you won’t get the email. For guidance on what to do if you need to update your eTA information after applying, that process has its own rules and isn’t always straightforward.

Answer every question about your background accurately. The questions about criminal history, health, and previous immigration decisions exist because the answers affect eligibility. Guessing, omitting, or softening an answer creates a record that can complicate future travel even if this application goes through.

Golden Rules

The eTA is linked to one specific passport — the one you used to apply; bring any other passport to check-in and the eTA doesn’t exist as far as the airline is concerned.

Eligibility and approval are not the same thing — an approved eTA is not a guarantee of entry; a border services officer makes that call on arrival.

Every detail on the form must match the passport exactly — not approximately, not close enough.

Apply with enough lead time to reapply if something goes wrong; last-minute corrections may simply not be possible.

After you submit: what happens next and what to watch for

Most decisions arrive within minutes. Some take up to 72 hours. If you are ready to move forward, you can start your eTA application and have your passport, payment card, and email address on hand. During that window, leave the email address you used accessible and check the junk folder — automated immigration emails are filtered by many providers.

When the email arrives, do two things immediately:

  1. Confirm the email contains your eTA number. The approval email includes this number. If the email you received doesn’t include it, or if it’s asking for more information rather than confirming approval, the process isn’t finished. An eTA approval email has a specific format — knowing what a real one looks like helps you spot a problem quickly.

  2. Check the passport number in the email against your physical passport. This is the single most important post-submission check. If the number doesn’t match exactly, you have a problem that needs to be resolved before you travel, not at the check-in desk. If you entered the wrong passport number, you’ll need to apply again with the correct passport number — the existing eTA cannot simply be corrected.

If your application is still showing as pending well past the 72-hour mark, that’s worth investigating rather than waiting out indefinitely. There are specific steps for what to do if your eTA application is still pending after the usual timeframe.

Before you travel: the one check that matters most

You don’t need to print anything. You don’t need to carry a confirmation letter. The eTA is electronically linked to your passport, and airline staff will scan the passport at check-in to confirm it’s valid. What you must do is bring the correct passport — the one you used when you applied.

Cityscape at dusk with tall buildings, a prominent observation tower, a body of water, and mountains in the background.

Run this check the day before you fly, not at the airport:

  • Pull out the passport you’re travelling with.
  • Open the approval email and find the passport number it references.
  • Compare them, digit by digit.

If they match, you’re ready. If they don’t — whether because you renewed your passport after applying, used the wrong one during the application, or made a typo — you need to act immediately. The eTA is linked to a specific passport number. An airline agent who scans the wrong passport will find nothing.

A border services officer will check your passport and other travel documents on arrival and verify your identity. A valid eTA doesn’t guarantee entry — the officer makes that determination. Having your documents in order, your answers consistent, and your purpose of visit clear is what puts you in the best position.

The passport you applied with is the passport you travel with. That’s the check that matters most, and it’s the one most often skipped.