Bill C-3 Grants Canadian Citizenship to Great-Grandchildren Born Abroad as of December 2025

What Changed Under Bill C-3

On December 15, 2025, Bill C-3 amended the Citizenship Act to eliminate the rule that had blocked Canadian citizenship from passing beyond the first generation born abroad. That means if one of your great-grandparents was Canadian, you may now be eligible for citizenship—even if your parents and grandparents were born outside Canada and never held a Canadian passport.

IRCC’s updated guidance confirms that people born outside Canada to a Canadian parent before that date are now Canadian in most cases, including those whose parents became Canadian under the same change. The key requirement remains proving your lineage through verifiable records for every generation, from your great-grandparent to you.

Before Bill C-3, citizenship by descent was limited to the first generation born abroad. For instance, if your parent was born outside Canada to a Canadian citizen, you could claim citizenship. But if your grandparent was the Canadian-born ancestor, you were ineligible. Now the rule extends to great-grandchildren—though with stricter documentary requirements.

Who Qualifies Under the New Rule

Your eligibility under Bill C-3 hinges on two things: when you were born and whether your documented family line reaches back to a Canadian great-grandparent. If you were born before December 15, 2025, you may already be a citizen if your great-grandparent was Canadian and each link in your lineage can be proven. For those born on or after that date, your parent must have lived in Canada for at least 1,095 days to pass citizenship to you.

Take Liam, a 28-year-old software engineer from Dublin. His great-grandmother was born in Toronto in 1920 and later moved to Ireland. Neither his grandmother nor his mother ever held Canadian citizenship. Under the old rules, Liam’s claim would have been rejected. Now, with documented proof—including his great-grandmother’s birth record, his grandmother’s records, and his mother’s birth record—he can apply for a proof of citizenship certificate.

Sophia, a newborn in São Paulo, faces a tougher test. Her great-grandfather was born in Montreal, but her father has only lived in Canada for 500 days. Because her father falls short of the 1,095-day requirement, Sophia isn’t automatically a Canadian citizen. If her father moves to Canada and reaches the required days before her birth, she could qualify.

IRCC’s standards leave no room for guesswork: you must provide authentic, verifiable records for every generation. Gaps—such as missing marriage records or undocumented name changes—can stall or even derail your application. Rural Quebec births before 1947, for instance, often require parish registers, as provincial birth certificates may not exist for that era.

Why Great-Grandparent Claims Are Harder to Prove

The farther back you go, the harder the proof. Canadian citizenship as a legal status only began on January 1, 1947, so most great-grandparents were British subjects rather than Canadian citizens. Records from this period are often incomplete, scattered across archives, or simply don’t exist.

Take Marguerite, a teacher from Maine. She discovered her great-grandfather was born in a small parish near Trois-Rivières in the early 1900s. To back her claim, she needed his baptismal record from the parish, her grandmother’s birth and marriage records, and her mother’s birth record. The parish record was the only proof available, since no provincial certificate existed. One missing link—like an undocumented name change—would have shut the door on her entire claim.

Another obstacle is Quebec’s “dit name” tradition. Many French-Canadian families used two surnames, and records might list one on a birth certificate but another on a marriage record. Marguerite’s great-grandfather, for instance, could appear as Tremblay dit Gagnon on his baptism record yet simply as Gagnon on his marriage record. Without knowing this custom, applicants can hit a dead end.

IRCC’s June 2026 review of previously issued certificates shows why thorough documentation matters. Some applicants who initially received certificates were later asked to return them for review because their files relied on genealogy-site printouts or lacked source records. While they kept their citizenship, they now must provide stronger proof to keep their certificates.

Your Action Plan to Claim Citizenship by Descent

Start by building your family tree, working backward from yourself to your Canadian great-grandparent. Note every individual in the chain and watch for name changes—especially those tied to marriage.

Next, gather source records. Order certified copies of birth, marriage, and death records for each generation. For pre-1947 births, you may need parish registers or British naturalization files. If a record is missing, get a “no record” letter from the issuing authority and document your search efforts.

Address gaps up front. If a record was destroyed in a fire, include a letter from the archive confirming the loss. For Quebec families, research whether your ancestors used a dit name and cross-reference all possible surname variations.

When everything is ready, submit your application via the proof of citizenship application and include all supporting documents. Processing currently takes about 15 months, so start early.

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