Family oral history is rarely precise about legal status. "My great-grandfather was Canadian" might mean he was born in Manitoba and lived there his whole life. It might also mean he arrived from Poland in 1920, spent fifty years in Winnipeg, and died without ever formally applying for citizenship. In a family story, those sound identical. For a citizenship by descent claim, they are not.
The legal requirement is not that your ancestor lived in Canada. It is that your ancestor was a Canadian citizen at the time their child was born. A permanent resident, however many decades they spent in Canada, cannot pass citizenship to children born outside of Canada.
Three Ways an Ancestor Becomes a Canadian Citizen
Born in Canada. A person born on Canadian soil is a Canadian citizen from birth, from the 1947 Citizenship Act forward. A provincial birth certificate proves it. No naturalization record needed. This is the cleanest anchor for a citizenship by descent claim.
British subject naturalized in Canada, or domiciled there on January 1, 1947. Before the 1947 Citizenship Act, there was no legal category called "Canadian citizen." People in Canada were British subjects. Immigrants who went through the formal naturalization process became naturalized British subjects in Canada. When the 1947 Act took effect, two groups automatically became Canadian citizens: people born in Canada, and people who had already naturalized as British subjects. An immigrant who arrived in 1908 and formally naturalized in 1919 became a Canadian citizen on January 1, 1947.
Formally naturalized after 1947. Immigrants who arrived after the 1947 Act could apply for Canadian citizenship after meeting residency requirements. A naturalization certificate documents the exact date citizenship attached. If the next person in your chain was born after that date, the link holds. If they were born before it, the link breaks at that generation.
What Permanent Residency Means (and Does Not)
"Landed immigrant" was the Canadian term for permanent resident until 2002. Both describe the same status: the legal right to live and work in Canada indefinitely, without being a citizen.
Many immigrants spent entire lifetimes in Canada without going through the naturalization process. For some, it never felt urgent. For others, the paperwork was unfamiliar. But the legal result is the same: without formally naturalizing, those immigrants remained permanent residents, regardless of how long they stayed.
The consequence for your application: a permanent resident cannot pass Canadian citizenship to children born outside Canada. If your great-grandfather arrived in Nova Scotia in 1930 and died in 1975 without naturalizing, his son born in Boston in 1928 does not hold Canadian citizenship through that line.
When Children Were Born in Canada
Canada recognized birthright citizenship from 1947 forward. A child born on Canadian soil is Canadian regardless of the parents' immigration status. A child born in Edmonton in 1942 to parents who never naturalized is still a Canadian citizen by birth.
So the relevant question, when an ancestor was a permanent resident, is where were their children born?
Consider Tomas, who arrived from Poland in 1928 and settled in Winnipeg as a landed immigrant, never formally naturalizing. His son Stanislaw was born in Chicago in 1926, before the family emigrated. His daughter Helena was born in Winnipeg in 1934. Stanislaw, born outside Canada to a non-citizen, is not Canadian by descent through Tomas. Helena, born in Winnipeg regardless of her parents' status, is Canadian from birth.
If you trace your ancestry through Helena, the claim holds. If you trace it through Stanislaw, there is no valid chain through that line.
How to Find Out Whether Your Ancestor Naturalized
Library and Archives Canada. LAC hosts a free, searchable database at bac-lac.gc.ca covering over 200,000 people who naturalized in Canada between 1915 and 1951. Search by surname, then narrow by given name and approximate year. If your ancestor appears, the database shows their naturalization year and certificate number. For naturalizations before 1915, provincial archives hold the earlier files. The Library and Archives Canada research guide explains the search process in detail.
IRCC's Search of Citizenship Records (Form CIT 0058). This is a formal request to IRCC to search their internal files for your ancestor. A positive result produces an official confirmation letter showing the exact date citizenship attached and the certificate details. The fee is $75 CAD. Processing runs approximately 17 months as of mid-2026, so submit this early if you are still assembling other documents. The confirmation letter is accepted by IRCC as certified evidence and is among the strongest supporting documents you can include.
A no-result from both LAC and CIT 0058 strongly suggests the ancestor remained a permanent resident and did not formalize their citizenship. In that case, the chain can only run through children born in Canada, not through children born outside of it.
What to Do With What You Find
If LAC or CIT 0058 confirms naturalization before the next person in the chain was born, the link holds. Gather the naturalization record or CIT 0058 confirmation letter and proceed with your CIT 0001 application. For the full documentation process when your anchor ancestor was born outside Canada, see Your Ancestor Wasn't Born in Canada: Does Citizenship Still Pass?.
If no naturalization record exists and the ancestor had no children born in Canada, the chain breaks at that generation. Citizenship by descent does not flow through permanent residents to children born outside Canada, regardless of how long that permanent resident lived there.
If the ancestor had children born in Canada, those children are Canadian from birth, and the chain continues from them. The claim anchors on the Canadian-born generation, not on the immigrant who preceded them.
MaplePass asks about your ancestor's birthplace and naturalization status in the eligibility check, and tells you exactly which links in the chain require additional documentation. Run the check in two minutes at getmaplepass.com before ordering a single document.