U.S. leads spike in applications for Canadian citizenship by descent
OTTAWA — Interest in Canadian citizenship by descent among citizens in a handful of countries — especially the United States — surged after the federal government passed a new law clarifying the rules.
C-3, which took effect on Dec. 15, 2025, allows someone born outside Canada before that date to a Canadian parent who also was born outside Canada to file a citizenship claim. Anyone born or adopted on or after Dec. 15, 2025 can make a claim as long as the parent, who was also born or adopted abroad, spent at least three years in Canada before their child’s birth or adoption.
The law was drafted and passed in response to a 2023 Ontario Superior Court order that found a law on citizenship by descent passed by Stephen Harper’s government was unconstitutional.
That Harper-era law said Canadians who were born abroad could only pass down their citizenship if their children were born in Canada.


