Canadian Citizenship by Descent After Bill C-3: Who Qualifies, What Documents You Need, and How Long It Takes

Since Bill C-3 took effect in December 2025, Canadian citizenship by descent has become available to people who didn’t qualify before — including many U.S. citizens whose ancestors once lived in Canada.

In short

• Bill C-3 became law in December 2025 and removed the first-generation limit for citizenship by descent.
• Processing times have grown from an average of 8 months before the law to 19 months now — more than a 100% increase.
• Waiting for archival documents averages 3–4 months, and Quebec’s archive charges around 350 CAD for a copy of a baptismal certificate.
• Over the past month, there have been cases of previously granted citizenship being revoked due to approvals that moved too fast.
• A specialist expects a cutoff date for the Canadian ancestor to be introduced — possibly July 1, 1867, or 1948.

What Bill C-3 Is and What Changed in December 2025

Bill C-3 became law in December 2025 — roughly two years after a Canadian court ruling set the change in motion. Against that backdrop, the Canadian case stands out: while similar programs in other countries have tended to narrow who qualifies, in Canada a court challenged the old restrictions, and the new law removed them.

For legal practices handling these cases, December 2025 brought a sharp spike in inquiries specifically about Canadian citizenship. People who didn’t previously meet the criteria for citizenship by descent became eligible once Bill C-3 took effect — provided they still have the necessary documents. Claims to status now come from descendants of ancestors across a wide range of periods: some trace their lineage back to 1867, others to 1989, and the range isn’t limited to those years.

Who Can Now Claim Citizenship by Descent

After Bill C-3 passed, citizenship by descent became available to people who had previously been turned down because of the old law’s restrictions — provided they still have the necessary documents. A claim can be based on an ancestor who held Canadian status before the first-generation limit was removed; specific dates that come up in practice (from 1867 to 1989) depend on the circumstances of the family line and aren’t an officially fixed cutoff.

Citizenship by descent means the applicant is claiming a status one of their ancestors already held — it’s not a separate category, but confirmation of a right that already exists. The expanded pool of eligible applicants has mainly affected mobility along the Canada-U.S. border: some families moved between the two countries generations ago, and their descendants are often unaware they have this right at all. Typical cases include a move from Quebec to the U.S., or migration through Canada from Europe followed by a later move to the States.

That’s exactly why the law has proven especially popular among U.S. citizens: for them, Canadian citizenship isn’t so much a reason to relocate right away as a fallback option for the future. For an applicant’s children, that potential is even greater than for the applicant themselves — access to status through descent carries over to the next generation as well.

What Documents You Need to Apply for Citizenship by Descent

The application is built around what’s often informally called the “anchor document” in practice — an original or notarized copy establishing the ancestor’s birth, their citizenship, and, where applicable, baptism (the term is unofficial; it doesn’t appear in IRCC’s own requirements). This is the case’s foundational document: without it, the rest of the paperwork doesn’t matter, because it’s the one piece of evidence that proves the ancestor held the citizenship status the applicant is claiming through.

In most cases, a birth certificate serves as this document; in some cases a baptismal record is used instead, though this isn’t an officially codified IRCC requirement — and occasionally a naturalization record is needed instead, which can be hard to track down, for instance one from 1914. Which document actually works depends on the province: Canada varies widely from province to province in what records were even kept historically. Go back far enough and nearly all records turn out to be religious ones — births and baptisms were recorded by church institutions authorized to do so more than a century ago, and whether an ancestor was Presbyterian or Catholic also affects which records to look for.

which can be hard to track down, for instance one from 1914

Beyond the anchor document, each generation in the chain needs a full set: birth, marriage, death. This is a key principle — that document “stack” has to repeat for every generation, all the way down to the applicant. Canadian census records and other papers issued by Canadian institutions can also help, serving as contextual confirmation of the link between generations.

Names are a separate headache. More than a century ago in Ontario, families were required to file a civil birth registration for a child, but the family itself was usually more concerned with the baptismal record — so it’s common for a birth certificate to list an incorrect or temporary name, with the ancestor’s real name appearing only in the baptismal record. In that case, both documents are needed: if an ancestor’s name is recorded inconsistently across the paperwork, it becomes harder for the person reviewing the application to confirm it’s the same individual connected to the applicant.

Documents to gather for a citizenship-by-descent application

• Ancestor’s “anchor” documentrequiredoriginal or notarized copy confirming birth and citizenship
• Ancestor’s birth certificaterequiredthe basic document in most cases
• Baptismal recordneeded if the birth certificate lists an incorrect or temporary name
• Naturalization recordrequired in some cases instead of a birth certificate
• Birth certificates for each generation in the chainrequireda complete document “stack” down to the applicant
• Marriage certificates for each generationconfirm the parent-child link, especially with common surnames
• Death certificates for each generationrequiredpart of the required document “stack”
• Canadian census records and other archival papersserve as additional contextual confirmation of the link between generations

Why Marriage Certificates Matter in Genealogical Proof

A marriage certificate confirms the link between generations: a birth certificate lists both parents, and the marriage record helps prove these are indeed the people through whom the applicant is claiming citizenship. In effect, it’s an additional point of confirmation for the parent-child link in the chain of generations.

This kind of confirmation matters especially when a surname is common. If an ancestor was named, say, John MacDonald — and in Canada’s Atlantic provinces plenty of Scottish-origin surnames repeat — a single birth certificate may not be enough to establish that this is the exact John MacDonald listed as the parent in the case. An additional marriage record helps close that gap.

This is a general rule of genealogical proof — you need several independent documents confirming that the same person appears across different records. A marriage certificate isn’t considered strictly mandatory: its value for proving a citizenship claim rates around 7–8 out of 10 rather than being absolutely required — meaning the document strengthens a case but doesn’t substitute for the anchor documents.

How Long Processing Now Takes — For Applications and Archival Documents

Processing times are climbing at an accelerating pace rather than a steady one: two and a half months ago it stood at 15 months, a month ago at 17, and as of the latest update it has reached 19 months. Before the law passed, while the first-generation limit was still in effect, applications took about 8 months to process — meaning the wait has grown by more than 100% specifically because of the new law.

Waiting for archival documents is its own story: it varies a lot depending on the specific archive, but on average runs 3–4 months. Some archives have used the surge in requests to raise their fees: Quebec’s archive, for instance, now charges around 350 Canadian dollars to issue a copy of a baptismal certificate.

The process of contacting archives has changed too. It used to be possible to correspond with archives by email and get a same-day reply — that’s how Quebec’s archive worked just a few years ago. Now many archives have switched to web forms, and a reply can take several business days.

Some archives allow in-person visits, and in those cases it’s common to hire local researchers on the ground to avoid the standard 3–4 month wait. But not every archive works that way: some only accept requests online or by phone and don’t offer in-person service at all.

Because of uncertainty over requirements during the transition period, some specialists temporarily lowered their fees — since even they weren’t entirely sure yet what documents, and in what form, immigration authorities would end up requiring.

Can You File the Application Yourself, Without a Specialist

The legal right to citizenship and the operational process of obtaining it move at two very different speeds. An applicant who doesn’t have the needed documents on hand can’t move the case forward until they gather them — and that’s the first thing people run into when they assume that, since the law is on their side, everything else will fall into place.

A common mistake is the reasoning “my grandfather or great-grandfather was Canadian, so this should be simple” — the legal right itself doesn’t erase the bureaucratic side of the process. The law governing citizenship by descent in its current form is new, and most immigration officers simply don’t have experience handling documents that are 150 years old — they weren’t specifically trained for this kind of work.

That’s why a specialist’s job isn’t just filling out the application form. First, the historical documents themselves have to be located and obtained. Second, they need to be assembled into a coherent argument — not just a stack of papers, but a logical “road map” showing why this specific person is a Canadian citizen. The argument has to be both legally sound and operationally clear: the officer on the other end of the process needs to see plainly what documents exist and how they connect to one another.

This work combines bureaucracy, law, history, and communication all at once. Filing on your own is technically possible, but in practice there’s a strong chance that around 19 months after submission a request for clarification on some document will arrive — and an applicant who assembled the package without specialized preparation doesn’t always understand what exactly is being asked for.

What Happens If an Application Was Filed Incorrectly

Over the past month, there have been cases where citizenship already granted was reviewed and revoked — immigration officers went back to previously approved documents and concluded that the approval had gone through too quickly. For some applicants, that means starting the process over from scratch.

immigration officers went back to previously approved documents and concluded that the approval had gone through too quickly

Among the cases reopened were some where the applicant had only certified and notarized copies on hand — no originals. One case that came up in practice: an applicant decided that since a record could be found in digital form, that was enough to submit instead of ordering an archival copy. Decisions like that later became grounds for reopening a case.

A mistake in an application isn’t just lost time corresponding with the agency. If the documents were assembled incorrectly and the program’s rules later change, the applicant risks ending up in a situation where the right to citizenship they held at the time of filing has to be re-argued from scratch — or can’t be confirmed at all. That’s why getting the application right the first time isn’t a formality — it’s what keeps a case from being reopened after the fact.

Part of the reason for these cases is that, at the program’s launch, there were no clear instructions or regulations spelling out document requirements. Criteria took shape as the work went along: some applicants submitted an incomplete set of documents and still got approved, before the immigration service settled into a stricter review approach.

Could the Law Change Again and Narrow Citizenship Rights

The law that expanded citizenship-by-descent rights will, sooner or later, be scaled back — that’s the view of a specialist interviewed for this piece, who points to Italy’s case as a precedent. Italy changed a similar program in March 2025: as early as September 2024, Italian lawyers were reporting that consulates were dragging out processing times and that the intake system for citizenship-by-descent applications was completely overwhelmed.

In the specialist’s assessment, Canadian law appears to be following the same script: the law was initially meant to correct a historical injustice for a narrow group of people, and its drafters didn’t account for how many applicants — mainly from the U.S. — would want to take advantage of it.

The specialist expects an administrative rule to eventually set a cutoff date for the Canadian ancestor: that could be July 1, 1867, the day Canada was founded, or 1948, when Canadian citizenship was officially separated from British subject status. The specific form and date of any such cutoff haven’t been determined yet.

That’s exactly why the specialist advises applying now rather than waiting: the right can remain available to every family member sharing the same ancestor, but once a future cutoff is introduced, those who haven’t filed will lose it. In his view, at a time when most countries are narrowing access to citizenship by descent, Canada’s current window is rare and valuable — and worth using correctly the first time.

at a time when most countries are narrowing access to citizenship by descent, Canada’s current window is rare and valuable

Frequently asked questions

Can I claim Canadian citizenship by descent if my ancestor didn’t get their status in Canada but moved there from Europe?

Yes: a typical case is migration through Canada from Europe followed by a later move to the U.S. What matters is that the ancestor held Canadian status before the first-generation limit was removed; later family moves don’t affect that right.

Can I apply for citizenship for my child rather than just for myself?

Yes, access to status through descent carries over to the next generation as well — for an applicant’s children, that potential is even greater than for the applicant themselves, since the right continues further down the chain.