Bill C-3 Explained: How “Lost Canadians” Can Claim Their Canadian Citizenship

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With Bill C-3 receiving the Royal Assent on November 20, 2025, following its final reading in the Senate on November 19, 2025, the legislation came into force on December 15, 2025. This means that as of this date, Immigration, Refugees and Citizenship Canada (IRCC) will begin applying the amended Citizenship Act, recognizing newly eligible Canadian citizens and implementing the revised rules governing citizenship by descent, including provisions addressing “Lost Canadians” and extending citizenship beyond the first generation born abroad, subject to the substantial connection requirement.

Since this bill will reshape who can inherit Canadian citizenship through ancestry, it’s important to understand what it actually does and how it affects families in Canada and abroad.

What is Bill C-3 and Why Was It Needed?

Background and Context of the Bill C-3

Since the creation of Canada’s Citizenship Act in 1947, Canada’s Citizenship by Ancestry (CBA) program, more commonly called citizenship by descent, has provided a pathway for individuals to become Canadian citizens beyond geographical constraints. Since 2009, however, this connection has been constrained by the so-called first-generation limit,” which allows Canadian citizenship to pass to only one generation born abroad. While this rule was originally intended to preserve the integrity of citizenship, its unintended consequence has been the creation of a generation of “Lost Canadians”, who are individuals with genuine ties to Canada who could not inherit citizenship because of geography or the timing of their birth.

How Bill C-3 Changes Canadian Citizenship by Ancestry

What Bill C-3 Means and the Expanding Framework of Citizenship by Ancestry

Bill C-3 removes the rigid barrier that previously confined citizenship by descent to a single generation, acting as a retrospective remedy for those affected by the old rules, as well as a prospective framework for those born in the future.

Who Automatically Qualifies for Canadian Citizenship Under Bill C-3?

Following the implementation of Bill C-3, any individuals born before December 15, 2025 may automatically become Canadian citizens if they would have been citizens but for the first-generation limit, or certain outdated provisions in earlier citizenship laws. Importantly, the amended framework does not impose an express generational limit on citizenship by descent, provided that the applicant can establish a qualifying Canadian parent. The Bill C-3 also ensures a simplified route to a direct grant of citizenship for all persons adopted outside Canada before the Bill’s commencement by a Canadian citizen parent who was previously unable to pass on citizenship due to the limit.

What is the Substantial Connection Requirement?

Canadians born abroad are now able to pass on citizenship to their own children born abroad, provided they can demonstrate a “substantial connection” to Canada on or after the Bill has come into force. The concept of substantial connection recognizes that citizenship is more than a matter of birthplace, reflecting the tangible bonds a person or family maintains with the country.

Notably, the “substantial connection” test only applies to individuals born or adopted abroad after December 15, 2025 (i.e. the date that these amendments take effect) to a Canadian parent who was also born or adopted abroad. This means that persons born or adopted outside Canada prior to December 15, 2025, and first-generation persons born or adopted abroad thereafter, are not required to establish a substantial connection to Canada when applying for proof of Canadian citizenship.

How Do You Prove Substantial Connection to Canada?

To meet this new threshold, a Canadian parent born outside Canada would need to have accumulated at least 1,095 days, approximately three years of physical presence in Canada before the birth or adoption of their child. This standard offers a transparent and objective way to measure genuine connection and replaces the arbitrary generational limit with a measurable test rooted in presence, experience, and participation in Canadian life.

These amendments also account for adopted children born abroad and for individuals who lost or were denied citizenship under outdated provisions of previous legislation.

Does the Substantial Connection Test Apply to First-Generation Canadians Born Abroad?

It is also important to understand that these changes do not apply to Canadians who are first-generation born abroad (a child born outside Canada to a Canadian-born or naturalized parent). These individuals are still automatic citizens and do not need to show any “substantial connection” to Canada.

How Harvey Law Group Can Help with Your Citizenship by Ancestry Application

When preparing a Citizenship by Ancestry application, expertise is critical. The process involves navigating complex eligibility rules, proving substantial connections, and ensuring documentation meets IRCC standards. Harvey Law Group’s experienced team provides the specialized knowledge and strategic guidance needed to present a strong application, helping clients avoid costly delays and maximize their chances of success.

At Harvey Law Group, our team of reputable Canadian immigration lawyers possesses extensive experience and expertise in Citizenship by Investment and Ancestry programs. We stay updated on the latest regulations and immigration policies to provide accurate and reliable guidance to our clients. By navigating the complexities of the program, we ensure compliance with the requirements and guidelines set by the immigration authorities, giving our clients a competitive advantage throughout the application process.

Our personalized approach, commitment to document integrity, and ethical practices ensure that clients can navigate the entire process with confidence and discretion.

Official Sources

This article is based on official information from Immigration, Refugees and Citizenship Canada (IRCC) and the Parliament of Canada. For complete details about Bill C-3 and Canadian citizenship by descent:

Bill C-3: An Act to amend the Citizenship Act (2025) comes into effect – Immigration, Refugees and Citizenship Canada, December 15, 2025 (canada.ca/en/immigration-refugees-citizenship/news/2025/12/bill-c-3-an-act-to-amend-the-citizenship-act-2025-comes-into-effect.html)

New citizenship rules for Canadians born or adopted abroad are now in effect – Immigration, Refugees and Citizenship Canada, December 15, 2025 (canada.ca/en/immigration-refugees-citizenship/news/2025/12/new-citizenship-rules-for-canadians-born-or-adopted-abroad-are-now-in-effect.html)

Canada reaches important milestone in restoring fairness and clarity to citizenship by descent – Immigration, Refugees and Citizenship Canada, November 21, 2025 (canada.ca/en/immigration-refugees-citizenship/news/2025/11/canada-reaches-important-milestone-in-restoring-fairness-and-clarity-to-citizenship-by-descent.html)

Bill C-3: An Act to amend the Citizenship Act (2025) – Immigration, Refugees and Citizenship Canada, June 5, 2025 (canada.ca/en/immigration-refugees-citizenship/news/2025/06/bill-c-3-an-act-to-amend-the-citizenship-act-2025.html)

Government Bill (House of Commons) C-3 (45-1) – Royal Assent – Parliament of Canada, November 20, 2025 (parl.ca/documentviewer/en/45-1/bill/C-3/royal-assent)

About the Author

Jean-François Harvey

Jean-François Harvey

Founder & Managing Partner

Jean-François Harvey is recognized internationally as an expert in immigration law, and he brings a wealth of experience in providing comprehensive immigration law services to corporations and high net worth individuals.

Disclaimer: The information provided by Harvey Law Group is for general informational purposes and does not constitute legal advice. Program details, regulations, and requirements are subject to change, and individual outcomes cannot be guaranteed. Clients are encouraged to seek personalized legal consultation before taking any action.

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