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Which Passport Should Dual Citizens Use to Apply for an eTA to Canada?

Dual citizens often wonder which passport to use for a Canadian eTA. Learn why Canadian citizens must travel on a Canadian passport instead of applying for one.

Immigration6 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • An Electronic Travel Authorization (eTA) is a pre-boarding screening tool for visa-exempt foreign nationals flying to Canada.
  • If you try to book a flight or check in using only your non-Canadian passport, airlines and border systems generally treat you as travelling on the strength of your Canadian citizenship…
  • Many dual citizens — especially those born abroad to a Canadian parent, or who became Canadian citizens as children and always travelled on their other nationality's documents — have…

If you hold Canadian citizenship along with citizenship in another country, you have probably wondered whether you need an eTA for dual citizens the same way other visitors do. It's a common source of confusion, especially if you've always travelled on your other passport and never applied for a Canadian one. The short answer is that Canadian citizens don't use the eTA system at all — but getting there means understanding a rule that catches a lot of dual citizens off guard.

This article explains why the eTA doesn't apply to you as a Canadian citizen, what federal rules expect instead, and what to do if you've never held a Canadian passport.

The eTA Is for Foreign Nationals, Not Canadian Citizens

An Electronic Travel Authorization (eTA) is a pre-boarding screening tool for visa-exempt foreign nationals flying to Canada. It's one half of a two-track system: travellers from countries that need a visa apply for a Temporary Resident Visa (TRV), while travellers from most visa-exempt countries flying to Canada apply for an eTA instead, which carries a modest application fee (currently $7 CAD, as of mid-2026 — verify the current amount before applying, since government fees do change).

Canadian citizens fall into neither category. For immigration and border purposes, once you're a Canadian citizen — whether by birth, descent, or naturalization — you're not a "foreign national" travelling to Canada, even if you also hold another country's passport. That means the eTA process simply doesn't apply to the Canadian side of your identity.

Why You Can't Substitute Your Other Passport

This is where dual citizens run into trouble. If you try to book a flight or check in using only your non-Canadian passport, airlines and border systems generally treat you as travelling on the strength of your Canadian citizenship once that citizenship is on record — not as a foreign visitor who simply needs an eTA.

In practice, this means:

The underlying idea is straightforward: Canada doesn't treat its own citizens as visitors who need pre-authorization to come home, so the travel document expected of you is the one that reflects that citizenship.

What If You've Never Had a Canadian Passport?

Many dual citizens — especially those born abroad to a Canadian parent, or who became Canadian citizens as children and always travelled on their other nationality's documents — have simply never applied for a Canadian passport. If that's your situation, the fix isn't to work around the requirement with an eTA; it's to apply for a Canadian passport before you travel.

Generally, this involves:

  1. Confirming you actually hold Canadian citizenship (by birth in Canada, by descent from a Canadian parent, or through a completed grant of citizenship).
  2. Gathering proof of that citizenship — a birth certificate, citizenship certificate, or previous Canadian passport, depending on your history.
  3. Applying for a Canadian passport through the appropriate federal process, whether from within Canada or through a Canadian government office abroad.
  4. Allowing enough time before your planned travel dates, since passport applications aren't processed instantly.

If your citizenship itself is in question — for example, if you were born outside Canada and aren't sure whether you inherited citizenship automatically — that's worth sorting out with a lawyer before you assume either the eTA or the passport route applies to you.

A Quick Pre-Travel Checklist

Frequently asked questions

Do I have to give up my other citizenship to travel this way?

No. Canada permits dual and multiple citizenship, and using your Canadian passport to travel to Canada has no effect on your other nationality. The requirement is about which document you present for this specific trip, not about your citizenship status generally.

I already applied for an eTA using my other passport by mistake. What now?

An eTA tied to a passport that isn't the one you actually travel on is unlikely to help you at check-in or the border once you're identified as a Canadian citizen. The safer course is to sort out a valid Canadian passport rather than rely on the eTA. If you're unsure how this affects an upcoming trip, get advice quickly rather than guessing.

My child has dual citizenship. Does the same rule apply to them?

Generally, yes. If your child holds Canadian citizenship, the same expectation applies to them as to any other Canadian citizen — travel on a Canadian passport rather than an eTA tied to another nationality. Minors need their own passport; they can't travel to Canada on a parent's document alone.

What if I'm not sure whether I'm actually a Canadian citizen?

Citizenship-by-descent rules can be genuinely complicated, particularly for people born abroad to Canadian parents or across more than one generation outside Canada. Don't guess — confirm your status before you book travel or apply for any document.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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