Canadian Citizenship by Descent: Chain Myths

By Pooneh Ghasvareh, RCIC · Verify RCIC registration

Many Americans believe they have lost their Canadian citizenship because of events in their family history. For example, they may think their Canadian ancestor's naturalization in the United States broke the chain of citizenship, that their ancestor passed away before they could apply for proof of citizenship, or that their family has lived outside Canada for too many generations.

The reality is that Canadian citizenship laws have evolved over generations, and some rules that once broke the chain of citizenship no longer apply.

As of December 15, 2025, the changes introduced by Bill C-3 have retroactively removed many of these barriers.

What No Longer Breaks the Chain of Canadian Citizenship?

Your ancestor became a naturalized U.S. citizen. Let's say your Canadian ancestor became a naturalized U.S. citizen in 1957 and took the oath of citizenship. Under the new rules, this does not necessarily mean they lost their Canadian citizenship or that the chain of citizenship was broken.

Your family has lived outside Canada for generations. Your family may have lived in the United States, Australia, the United Kingdom, or another country for several generations. Living outside Canada, even for generations, does not automatically break the chain of Canadian citizenship.

Your Canadian ancestor passed away before the 2025 changes. The fact that your ancestor died before the new rules took effect does not, by itself, prevent citizenship from being passed down through your family.

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What Can Actually Break the Chain of Canadian Citizenship?

Although many previous barriers have been removed, certain circumstances may still affect your family's citizenship history.

Your ancestor formally renounced Canadian citizenship. If your ancestor voluntarily applied to the Canadian government to renounce their citizenship before becoming a naturalized U.S. citizen, this may affect whether citizenship was passed down to subsequent generations.

Your ancestor's Canadian citizenship was revoked. If your ancestor's citizenship was formally revoked, for example, because of fraud, misrepresentation, or certain security-related grounds, this may affect the chain of citizenship.