Canada’s citizenship-by-descent rules could benefit people whose Canadian ancestry comes through an ancestor who was not necessarily born in Canada. A qualifying “Generation Zero” ancestor may include someone who was naturalized in Canada before 1947, was a British subject domiciled in Canada when Canadian citizenship began in 1947, or became a Canadian citizen after 1947.
To pass citizenship to the next generation, the ancestor generally needed to have acquired Canadian citizenship before the birth of that generation. Historical records which include naturalization and domicile documents may therefore play an important role in proving eligibility.
Canada’s citizenship-by-descent rules were also expanded under Bill C-3, effective December 15, 2025, potentially benefiting people born abroad across multiple generations. Hence families with Canadian ancestry should investigate naturalization, domicile and historical citizenship records and not just birth certificates.
Read to know more: Canada Invites 5,000 French-Speaking Candidates for Permanent Residence
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