Dual citizenship Canada 2026: keeping your original passport

Canada has allowed dual citizenship since 1977, and the country imposes no requirement to renounce your original nationality when you naturalize. Whether you can actually hold both passports, however, depends entirely on the other country's laws—not Canada's generosity.

Does Canada allow dual citizenship?

Yes. Canada recognizes dual nationality (and triple, quadruple, or more) without restriction. When you take the oath of citizenship, IRCC doesn't ask you to surrender your existing passport, sign a renunciation form, or pledge exclusive allegiance. The oath itself contains no clause requiring you to abandon prior ties.

This has been the rule since February 15, 1977, when Parliament amended the Canadian Citizenship Act to remove the automatic-loss provisions that had stripped citizenship from Canadians who naturalized elsewhere. Before that date, acquiring a second citizenship meant forfeiting Canadian status; since then, you can collect citizenships like frequent-flyer cards.

The practical upshot: if you're a permanent resident from the United States, United Kingdom, France, Mexico, or any other country that permits its nationals to hold additional citizenships, you will walk away from your citizenship ceremony with two valid passports and no paperwork forcing you to choose.

Worth flagging: Canada's permissiveness is one-sided. The Canadian government won't strip your Canadian citizenship if you naturalize somewhere else, but it also won't intervene if your country of origin decides to revoke your original nationality because you became Canadian. That decision sits entirely with the other state.

What happens to your original passport when you become Canadian

Nothing, from Canada's perspective. IRCC doesn't confiscate travel documents, doesn't notify your home country's embassy, and doesn't record your foreign nationality in any database that would trigger automatic cancellation abroad. Your old passport remains physically in your possession, and its validity depends solely on the issuing country's rules.

Three scenarios play out.

Most Western democracies and a growing number of other states allow their citizens to naturalize in Canada without consequence. Americans, Britons, Australians, Mexicans, Brazilians, Filipinos, and nationals of roughly 75 other countries keep both passports by default. You'll renew each one independently, travel on whichever is convenient, and face no legal friction from either government.

A smaller set of countries—China, India, Japan, Singapore, and about a dozen others—treat acquisition of foreign citizenship as an automatic termination event. The moment you become Canadian, your original nationality legally ceases, even if the physical passport in your drawer still shows a future expiry date. Using that now-invalid document can trigger fraud charges at your home country's border. These jurisdictions require you to formally surrender the old passport and apply for a visa or Overseas Citizen card if you want to return.

A handful of states (Germany, Austria, South Africa under certain circumstances) allow dual citizenship only if you apply for permission before naturalizing elsewhere. Miss that window, and you lose the original nationality retroactively. The process is bureaucratic and success isn't guaranteed, but it's the only route to keeping both.

The gotcha most applicants hit: assuming that because Canada is fine with dual status, their home country must be too. It's not symmetrical. Check your country of origin's nationality law before you take the oath—once you're Canadian, the renunciation (if required) is irreversible without going through that country's re-naturalization process, which may be slow, expensive, or closed entirely to former citizens.

Countries that don't recognize dual citizenship

The list of states that force a choice is shorter than it used to be, but it still includes some of the largest immigrant-sending countries to Canada. As of 2026, the following jurisdictions either prohibit dual nationality outright or impose automatic loss upon foreign naturalization:

• China (People's Republic): acquiring Canadian citizenship terminates Chinese nationality automatically under Article 9 of the Nationality Law. You must surrender your Chinese passport and apply for a visa to visit. Hong Kong and Macau residents face different rules under their respective Basic Laws.
• India: technically prohibits dual citizenship, but offers Overseas Citizen of India (OCI) status—a permanent visa that grants most rights except voting and government jobs. You surrender the Indian passport, apply for OCI, and travel on your Canadian passport with the OCI card as a long-term visa.
• Japan: does not recognize dual nationality for adults. Japanese citizens who naturalize in Canada are expected to choose one nationality; failure to renounce the Japanese citizenship within a reasonable period can (rarely) trigger administrative revocation.
• Singapore: similar to Japan—dual citizenship is not permitted, and naturalization elsewhere results in automatic loss unless you obtained prior approval (almost never granted).
• Indonesia, Malaysia, Myanmar, Nepal, Saudi Arabia, United Arab Emirates, Kuwait, Bahrain, Qatar: all prohibit or severely restrict dual nationality.
• Germany and Austria: allow dual citizenship only in narrow cases (EU nationals, refugees, or applicants who secured a Beibehaltungsgenehmigung retention permit before naturalizing abroad). Most German and Austrian citizens who become Canadian without that permit lose their original nationality.

If your country is on this list, the practical sequence is: naturalize in Canada, notify your home country's consulate, surrender the old passport, and apply for whatever visa or residency card that country offers to former nationals. For India, that's OCI; for China, it's a standard visa; for others, it varies.

One wrinkle: some countries don't enforce the prohibition strictly. You may find online forums full of people claiming they hold both passports despite the legal ban. That's immigration fraud in the country that prohibits dual status, and while enforcement is inconsistent, the risk is real—denied entry, passport confiscation, or criminal charges if you're caught.

Using two passports: border logistics and travel strategy

If you hold dual citizenship legally (meaning both countries permit it), you can carry both passports and use them strategically. The general rule: always enter and exit a country on the passport issued by that country.

When entering Canada, use your Canadian passport. Canadian citizens are required to present a Canadian passport (or other proof of citizenship) when entering Canada by air; using a foreign passport at the Canadian border can trigger secondary inspection and delays, even if you're legally entitled to enter. Land and sea crossings offer slightly more flexibility (NEXUS, enhanced driver's licenses), but air travel demands the Canadian document.

When entering your country of origin, use that country's passport. Most states require their own nationals to enter on a national passport, and trying to enter on your Canadian passport may result in refusal or a bureaucratic mess while officials verify your status.

When entering third countries, pick whichever passport offers visa-free access or the better visa. Canadians enjoy visa-free or visa-on-arrival access to 185 countries as of 2026; if your other nationality offers fewer visa privileges, lead with the Canadian passport. If your other passport grants easier access to a specific region (EU passport for Europe, ASEAN passport for Southeast Asia), use that one.

Book the ticket under the name and passport number you'll use at your destination. If you're flying Toronto → London → Mumbai and plan to enter India on your (hypothetical retained) Indian passport, book under that passport to avoid mismatches at check-in. If you're entering India on a Canadian passport with an Indian visa, book under the Canadian document.

Don't switch passports mid-itinerary unless you're transiting through your country of citizenship. Immigration systems track entry/exit stamps; if you entered Country X on Passport A, exit on Passport A. Switching confuses the system and can flag you as an overstay.

The messiest scenario: you hold Canadian + Country B citizenship, both of which permit dual status, but you're flying through Country C that requires a visa for one passport and not the other. Solve it at booking—pick the passport that minimizes visa hassle for the entire route, and use that document consistently until you reach a country where you hold citizenship (at which point you switch to that country's passport for entry).

Tax and military service obligations in your country of origin

Dual citizenship doesn't exempt you from the laws of either country—you're subject to both, and when the obligations conflict, you're stuck navigating the contradiction on your own.

Canada taxes residents on worldwide income; your tax home is where you live, not where you hold citizenship. If you're resident in Canada, you file a Canadian tax return regardless of how many other passports you hold. The complication arises if your other country taxes based on citizenship rather than residency. The United States is the most aggressive example: American citizens must file U.S. tax returns and report worldwide income even if they live in Canada full-time, and while the Canada–U.S. tax treaty prevents true double taxation through foreign tax credits, the compliance burden is real. Eritrea imposes a 2% diaspora tax on citizens abroad. Most other countries tax only residents, so holding a second passport creates no additional filing obligation unless you maintain ties (property, income sources) in that country.

Some countries impose conscription on dual nationals. South Korea requires male citizens to serve regardless of where they live or what other nationalities they hold; failure to report can result in arrest if you visit. Israel has similar rules for Jewish immigrants under the Law of Return. Greece, Turkey, and several others maintain conscription but offer exemptions or deferrals for dual nationals living abroad—check the specific country's consulate for current policy. Canada won't shield you from another country's conscription laws; if you're a dual national and that country's military comes calling, you're on your own to comply, defer, or avoid travel to that country.

Dual citizens can be prosecuted under the laws of either country. If you commit an act that's legal in Canada but illegal in your country of origin (certain speech, political activity, religious practice), that country can charge you if you enter its territory. Canada won't extradite its own citizens to face charges for acts committed in Canada, but it also won't prevent the other country from prosecuting you if you voluntarily travel there.

Dual citizenship is a legal status, not a shield. You're bound by both countries' laws, and when they conflict, you navigate the conflict—Canada doesn't mediate.

Citizenship by descent and automatic dual status

Dual citizenship most commonly arises not through naturalization but through birth. Children born in Canada to foreign parents are Canadian citizens by birth and citizens of the parents' country (if that country grants citizenship by descent). Children born abroad to Canadian parents are Canadian by descent and citizens of the country of birth (if that country grants citizenship by birthplace). Both scenarios produce dual nationals from day one, with no application or oath required.

The 2009 and 2015 changes to Canada's descent rules (limiting citizenship by descent to the first generation born abroad, then partially reversing that limit under Bill C-37 and the 2024 Bjorkquist ruling) created a cohort of adults who didn't realize they were Canadian until recently. Many Americans with Canadian parents or grandparents have successfully claimed citizenship by descent and now hold dual status without ever having lived in Canada. The processing timeline for descent applications runs 8–15 months as of 2026, and the cost is under CAD $100—cheaper than most vacation packages.

If you're applying for citizenship by descent and already hold another nationality, you'll end up with dual citizenship automatically. Canada doesn't require you to renounce, and the descent application doesn't trigger any notification to your other country of citizenship. You'll receive a citizenship certificate, apply for a Canadian passport, and carry both documents going forward.

One edge case: some countries (Germany, Japan) that prohibit dual citizenship make exceptions for citizenship acquired automatically at birth. A child born in Canada to German parents is both Canadian and German, and Germany won't force the child to choose until adulthood (age 21–23, depending on circumstances). If you're an adult applying for Canadian citizenship by descent and you hold German nationality, check whether Germany considers descent-based citizenship an automatic acquisition (permitted) or a voluntary acquisition (prohibited). The distinction matters.

When you might want to renounce one citizenship voluntarily

Even when both countries permit dual status, some people choose to renounce one nationality for practical or political reasons.

Holding two passports from countries with tense diplomatic relations (e.g., Israel and an Arab state, India and Pakistan) can complicate travel. Some applicants renounce the less-useful passport to avoid scrutiny.

U.S. citizens living permanently in Canada sometimes renounce U.S. citizenship to escape the annual filing burden and FBAR reporting requirements. The renunciation fee is USD $2,350 as of 2026, and the process takes 6–12 months, but it's a clean exit from U.S. tax jurisdiction.

Certain jobs (government positions requiring security clearance, military service, some public-sector roles) may be closed to dual nationals in one country or the other. Renouncing the less-important citizenship can open those doors.

Some countries restrict property ownership or inheritance rights for dual nationals. Renouncing one nationality can simplify estate planning.

Renunciation is almost always irreversible. A few countries (Ireland, Italy) allow former citizens to reclaim nationality under specific conditions, but most treat renunciation as permanent. If you're considering it, consult a lawyer in both countries before proceeding—once the paperwork is filed, you can't undo it.

How to check your home country's dual citizenship rules

The Canadian government publishes no official list of which countries allow dual citizenship; that information sits with each country's nationality law, and it changes. The most reliable sources:

• Your country's embassy or consulate in Canada (call or email the citizenship/passport section)
• The nationality law statute itself (often available in English translation on government websites)
• Expat forums and dual-citizenship advocacy groups (useful for anecdotal reports, but verify with official sources)

When you contact the consulate, ask specifically: "If I naturalize as a Canadian citizen, will I lose [country] nationality automatically, or is dual citizenship permitted?" Request the answer in writing if possible. Some consular staff give incorrect information, and having a paper trail helps if you need to challenge a decision later.

If your country prohibits dual citizenship and you want to keep ties, ask whether any exemption or alternative status exists (like India's OCI or Taiwan's TARC). These quasi-citizenship statuses grant most practical benefits—visa-free entry, property rights, work authorization—without the formal nationality.

For applicants going through the citizenship application process or preparing for the citizenship test, the dual-citizenship question is worth resolving before the oath ceremony. Once you're Canadian, the original nationality question is out of IRCC's hands.

Official rules on Canadian citizenship are at canada.ca/citizenship; this guide is independent reference content.