Does Canadian citizenship by descent have generational limits?

 IN BRIEF

Bill C-3, An Act to amend the Citizenship Act, received Royal Assent on November 20, 2025 and came into force December 15, 2025. It retroactively ended Canada's first-generation limit on citizenship by descent.

If you were born abroad before December 15, 2025 to a Canadian citizen parent — including through a Canadian-born grandparent — you are likely a Canadian citizen automatically. A citizenship certificate is required to prove it.

Standard processing: about ten months. Urgent processing: about eight weeks.

For fifteen years, Canadian citizenship stopped at the first generation born abroad. If your parent was a Canadian born outside Canada, and you were also born outside Canada, you were not a citizen, no matter how clearly Canadian your grandparents were. The rule ran from April 17, 2009 to December 14, 2025. It cut off the grandchildren of Canadians who had left the country for any reason. Bill C-3 has now reversed the rule, and the largest group of claims it reopens runs through a Canadian-born grandparent.

Therefore, if your grandparent was born in Canada, and they had a child abroad who then had you abroad, you were almost certainly told at some point in the last fifteen years that the chain of citizenship ended with your parent. Under the new law, it does not. As of today, you can claim your Canadian citizenship by descent.

What the first-generation limit was

Until December 2025, Canadian citizenship by descent operated under what the statute called the "first-generation limit." A Canadian citizen born in Canada could pass citizenship to a child born abroad, e.g. the first generation born outside Canada. That first-generation-born-abroad child, however, could not in turn pass citizenship to a child also born abroad. The chain stopped there unless the grandchild either returned to Canada to have their own child or later qualified for a grant through permanent residence.

The rule had been introduced in 2008 and took effect on April 17, 2009. It was designed to address public concern about so-called "citizens of convenience", aka people holding Canadian citizenship with no real ties to the country and passing it down indefinitely through generations who might never set foot on Canadian soil. In practice, the rule caught a much wider population than that: academic families, military postings, cross-border marriages, and the ordinary diaspora. The children and grandchildren of Canadians abroad found themselves, for the first time in modern Canadian law, excluded from citizenship their families had once held unambiguously.

In December 2023, the Ontario Superior Court of Justice ruled in Bjorkquist v. Attorney General of Canada that the first-generation limit violated sections 6 and 15 of the Canadian Charter of Rights and Freedoms on mobility rights and equality rights. The federal government did not appeal.

Parliament's first legislative response, Bill C-71, died on the order paper. The substantially similar Bill C-3 passed, received Royal Assent on November 20, 2025, and came into force on December 15, 2025. The first-generation limit has been gone ever since.

Who qualifies through a grandparent now

Bill C-3 works in two directions.

If you were born abroad before December 15, 2025, and one of your parents was a Canadian citizen by descent (that is, a Canadian citizen who was themselves born outside Canada to a Canadian-born grandparent) you are now a Canadian citizen. Congrats! The citizenship applies automatically by operation of the amended statute.

• There is no test, no oath, and no residency requirement. The only thing standing between you and a Canadian passport is the documentary work of proving the chain and the application to formally request recognition of citizenship.

The typical case looks like this. A Canadian-born grandparent emigrates to the United States, the United Kingdom, Ireland, Australia, or somewhere else. They have a child abroad. That child, your parent, was a Canadian citizen by descent under the old rules. You were then born abroad to that parent. Under the first-generation limit, you were excluded. Under Bill C-3, you are a citizen.

The same structure extends further back where the chain is documentable. Great-grandchildren of Canadian-born ancestors born abroad before December 15, 2025 may also qualify, provided each generational link is intact and provable. In practice, there are no generational limits to Canadian citizenship by descent claims.

If you are born abroad on or after December 15, 2025, the rules are narrower. For the first generation born abroad, e.g. with one Canadian-born parent, the old rule still applies, unchanged. You are a citizen automatically. 

For the second generation and beyond, a new requirement attaches: the Canadian parent, the one who is themselves a citizen by descent, must demonstrate a "substantial connection" to Canada. Substantial connection is defined as physical presence in Canada totaling at least 1,095 cumulative days or three years, at any point before the child's birth or adoption.

The substantial-connection test is prospective only. It does not reach back. Therefore, if you were born before December 15, 2025, the test does not apply to you, regardless of how many generations the chain of descent spans.

What a chain of descent looks like in practice

A citizenship-by-descent case is a three-party problem: the Canadian-born ancestor, the intermediate parent, and the applicant. Each link must be documented to the standard IRCC accepts.

For a straightforward grandparent claim, the records typically required are:

• Long-form birth certificate of the Canadian-born grandparent, showing birth in Canada. 
• Short-form certificates, which omit parental details, are almost never sufficient.
• Marriage certificates across the generations to trace any name changes.
• Long-form birth certificate of the intermediate parent, whether born in Canada or abroad.
• Proof that the intermediate parent held Canadian citizenship at the time of the applicant's birth. This is often a Canadian citizenship certificate issued in the parent's name, if one exists.
• Long-form birth certificate of the applicant.
• Government-issued photo identification for the applicant, and, for any minor applicant, for the parent or guardian submitting the application.

Complications arise, as they tend to, in the places where families moved. A grandparent born in a remote or under-registered community may not appear in a provincial vital-statistics database even if they were unambiguously born in Canada. A parent may never have applied for a citizenship certificate in their own name, making proof of their citizenship at the time of the applicant's birth a matter of secondary evidence. Historical sex-based provisions once prevented Canadian mothers, in specific marital circumstances, from passing citizenship, provisions Bill C-3 has now largely addressed, but which still affect what records an older applicant must produce.

Where records are missing, substitute evidence is usually available such as census records, church registers, naturalization files held at Library and Archives Canada, and in some cases affidavits from surviving family members. The eligibility analysis is, in essence, a forensic exercise in what can be proven with what remains.

Your application will be reviewed by a human, so presenting a clear and cohesive narrative through a paper trail is essential.

"Lost Canadians"

Alongside the descent rules, Bill C-3 restores citizenship to a specific population of "Lost Canadians", e.g. people who were Canadian citizens at some point and lost that status under provisions that have since been repealed.

The largest Lost Canadian group are those born abroad to Canadian parents between February 15, 1977 and April 17, 1981 who, under the then-current law, were required to apply to retain Canadian citizenship before their 28th birthday. Many never knew of the requirement. Many lost citizenship without ever being notified. Bill C-3 restores citizenship to this group and extends it to their descendants under the same rules that govern other descent claims.

If you believe you or a parent once held Canadian citizenship and lost it or if your family history includes a pre-1977 marriage in which a Canadian woman appeared to lose status, the factual history matters as much as current documentation. The eligibility analysis includes a review of older Citizenship Act provisions and the relevant archival records.

How to apply

There is no "citizenship by descent" application form in the conventional sense. Because the law deems qualifying individuals to be citizens automatically, what you apply for is a proof of citizenship, a citizenship certificate confirming what the statute already says.

The process, in outline:

1. Gather vital records for each generation in the chain. Long-form birth certificates showing parents' names. Marriage certificates where names changed. The parent's own citizenship certificate, where available.
2. Complete the application for a citizenship certificate (IRCC Form CIT 0001 for adults, or the relevant adoptee or minor-applicant form where applicable).
3. Submit the application, fee, and supporting documents to Immigration, Refugees and Citizenship Canada.
4. Wait. Standard processing as of early 2026 is approximately ten months. Urgent processing is available where the certificate is needed for employment, consular benefits, or similar time-sensitive reasons. That runs about eight weeks as of the time we are writing this blog post.
5. Receive the citizenship certificate. It is not itself a travel document. It is, however, the foundational proof needed to apply for a Canadian passport.

The government fee for a proof of citizenship is modest. The practical challenge, in nearly every case, is record-gathering and authentication, not the filing itself.

Frequently asked questions

Can I get Canadian citizenship through a grandparent?

For anyone born abroad before December 15, 2025, yes. Provided the chain of descent from a Canadian-born ancestor to you is documentable. Bill C-3 retroactively removed the first-generation limit that had previously blocked such claims. The citizenship applies automatically by statute; what you apply for is a citizenship certificate as proof.

What if my grandparent was born in Canada but never became a formal citizen?

Birth in Canada is itself the qualifying fact. A person born on Canadian territory is a Canadian citizen by birth, regardless of whether a citizenship certificate was ever issued or applied for. Late registration of birth, where necessary, can resolve the evidentiary question.

Does claiming Canadian citizenship affect my U.S. citizenship?

No. The United States and Canada both recognize dual citizenship. Because Bill C-3 deems descendants to be citizens automatically and without an oath or ceremony, applying for a citizenship certificate does not involve any act that would implicate loss of U.S. nationality under U.S. law. This is one of the most common worries; it is also one of the easiest to set aside.

What if my Canadian parent or grandparent is deceased?

Citizenship by descent does not require a living ancestor. The chain is evidentiary, not participatory. The records of a deceased parent or grandparent carry the same weight as those of a living one.

My grandmother was Canadian but lost her citizenship when she married an American in the 1940s. Am I still eligible?

Very possibly. Historical sex-based provisions that stripped Canadian women of citizenship on marriage to non-Canadians have been addressed across a series of amendments culminating in Bill C-3. The specific facts matter, e.g. the year of the marriage, whether she naturalized elsewhere, the countries involved, but this is now one of the clearer categories of claim.

Can I hold Canadian citizenship alongside another descent-based citizenship, such as Irish or Italian?

Yes. Canadian citizenship by descent is independent of any European citizenship by descent you may hold, and neither affects the other. It is common for clients to pursue a Canadian certificate and an Irish Foreign Births Register entry, or an Italian jure sanguinis claim, in parallel. The applications are submitted to different governments and do not conflict.

How long does the whole process take?

From first consultation to citizenship certificate in hand, expect twelve to eighteen months in a straightforward case, which includes four to six months or more for document gathering and preparation, then approximately ten months for IRCC processing. Urgent processing, where available, compresses the back end to roughly eight weeks.

Where this leaves applicants in 2026

Bill C-3 is the most significant single expansion of descent-based citizenship law in the English-speaking world this decade. The Government of Canada's own estimate is that roughly 115,000 people will become eligible over the first five years. Private estimates run considerably higher. IRCC is processing applications submitted under the earlier interim measure against the new rules, and processing capacity (not legal eligibility) is the operative constraint for the moment.

The law will refine itself over time, as all descent legislation does, through regulation and litigation. The substantial-connection test for post-2025 births in particular will generate its own case law as individual families test its edges. For retroactive claims, e.g. the second generation of Canadians born abroad, the grandchildren and great-grandchildren of emigrants, the immediate question is simpler. The citizenship is already yours under the statute. The question is only whether you choose to document it.

For most families who qualify, it has been waiting since birth.