Citizenship by Descent after Bill C-3: Canada’s New Rules Explained

Citizenship by descent changed significantly when Bill C-3 took effect on December 15, 2025. Parliament removed the former first-generation barrier for many people with Canadian ancestry. At the same time, Parliament created a new framework for children born abroad after that date. The new framework looks at a Canadian parent’s physical connection to Canada. In many cases, that connection requires at least 1,095 cumulative days of physical presence in Canada. The result is a system that treats earlier births very differently from future births.

Why Canada Changed Citizenship by Descent

The legal story began before Bill C-3. In Bjorkquist et al. v. Attorney General of Canada, the Ontario Superior Court examined Canada’s first-generation limit. The rule prevented many Canadians born abroad from automatically passing citizenship to their children born abroad. The Court found that the restriction violated sections 6 and 15 of the Canadian Charter of Rights and Freedoms. The Court also concluded that the government had not justified those violations under section 1. The federal government chose not to appeal.

However, the Court did not immediately eliminate the rule. Instead, it suspended its declaration so Parliament could develop replacement legislation. The Court later extended that suspension several times while Parliament considered legislative responses. In November 2025, the Court granted another extension until January 20, 2026. By then, Parliament had made significant progress on Bill C-3. Bill C-3 ultimately came into force before that extended deadline.

The Key Date Is December 15, 2025

Bill C-3 received Royal Assent on November 20, 2025. The Governor in Council fixed December 15, 2025 as its coming-into-force date. IRCC often shortens “coming into force” to “CIF” in its internal materials. That date now divides the citizenship rules into two major periods. People born before that date often benefit from broad remedial provisions. People born on or after that date may face the new physical-presence requirement.

This distinction matters more than the number of generations alone. A person in the second or later generation abroad may now qualify automatically because the birth occurred before December 15, 2025. Another person with a similar family history may face the 1,095-day test because the birth occurred later. Therefore, practitioners should establish the applicant’s complete chronology before reaching any conclusion. End users should also avoid assuming that a Canadian grandparent automatically establishes citizenship. The precise dates and statutory route still matter.

Citizenship by Descent Before December 15, 2025

Bill C-3 removed the former first-generation limit for many people already born abroad. In most cases, a person born abroad before December 15, 2025 may qualify if a parent held Canadian citizenship. The rule can also apply through a parent who gained citizenship under the 2025 amendments. This feature can repair citizenship chains that earlier legislation interrupted. However, historical renunciation, revocation, and other statutory provisions can still change the result. Therefore, applicants with older family histories should review the entire citizenship chain.

IRCC’s internal officer presentation illustrates this change through a child named John. John was born in England in 2011, and his Canadian parent was also born abroad. The former first-generation limit blocked his citizenship before Bill C-3. Under the new law, John becomes a Canadian citizen retroactive to his date of birth. IRCC therefore treats the change as citizenship by operation of law. A citizenship certificate later proves that status, but the certificate does not create the citizenship.

Retroactive Citizenship Can Reach Earlier Generations

Bill C-3 can affect more than a simple parent-child relationship. The legislation can restore or recognize citizenship within a longer family chain. That restoration may then affect the citizenship status of later generations. IRCC’s internal materials specifically discuss descendants of people commonly called “Lost Canadians.” Many of these families encountered historical rules that removed citizenship or prevented its transmission. Bill C-3 attempts to close several remaining gaps left by those earlier laws.

The officer presentation gives an example involving Clifford. Clifford was born in the United States in 1998, while his grandparent had been born in Canada in 1938. Earlier legislation caused the grandparent to lose Canadian citizenship after acquiring American citizenship. Canada restored the grandparent’s citizenship in 2009, but the former first-generation limit still prevented Clifford from becoming a citizen. Bill C-3 changes that result. IRCC treats Clifford as a Canadian citizen retroactive to his birth.

This example shows why practitioners may need to examine grandparents and even earlier generations. A parent may appear not to have been Canadian under the previous rules. However, Bill C-3 may retroactively alter that parent’s citizenship status. That change may then affect the applicant. Therefore, historical citizenship cases require a generational analysis rather than a review of the applicant alone.

Section 8 Lost Canadians Receive Another Remedy

Former section 8 of the Citizenship Act created another historical problem. Certain citizens born abroad had to take steps to retain citizenship before age 28. Some people lost citizenship because they did not complete that process successfully. Earlier legislative reforms did not restore everyone affected by those rules. Bill C-3 addresses an important part of that remaining group. IRCC’s internal training materials highlight people born between February 15, 1977 and April 16, 1981.

Bill C-3 also changed paragraph 3(1)(f) of the Citizenship Act. The amendments removed a provision that had prevented some former section 8 citizens from obtaining restoration through that paragraph. The officer materials also discuss new subsection 3(6.4). That provision determines the statutory category when someone could otherwise fall under both paragraphs 3(1)(b) and 3(1)(f). These distinctions may appear technical, but they can affect the legal basis of citizenship. Practitioners should therefore identify the exact statutory source instead of relying only on the broad label of Lost Canadian.

Citizenship by Descent after December 15, 2025

The rules change significantly for relevant births on or after December 15, 2025. Parliament did not simply allow Canadian citizenship to pass indefinitely through generations born abroad. Instead, it created a substantial-connection requirement for certain Canadian parents born or adopted outside Canada. At least one qualifying Canadian parent generally needs 1,095 days of physical presence in Canada before the child’s birth. The law measures those days cumulatively. Therefore, the parent does not need one uninterrupted three-year period in Canada.

The requirement mainly affects a Canadian parent who also obtained citizenship through birth abroad or another specified descent provision. It does not create a universal 1,095-day rule for every Canadian parent. A Canadian-born parent usually stands in a different position. A naturalized Canadian also falls under a different statutory pathway. Consequently, practitioners should first determine whether subsection 3(3) applies. They should calculate physical presence only after answering that threshold question.

How the 1,095-Day Rule Works

IRCC treats the 1,095 days as cumulative physical presence. The Canadian parent can accumulate those days at different stages of life. Childhood residence can contribute to the total. University studies, employment, and later periods in Canada can also contribute. The parent must accumulate the required days before the relevant child’s birth. Days accumulated after the birth cannot cure a shortfall for that child.

The internal officer training provides an example involving Amy. Amy is born in Germany after Bill C-3 takes effect. Her Canadian parent was also born abroad and became Canadian by descent. However, the parent had previously lived in Canada for four years while attending university. That period exceeds the required 1,095 days. Therefore, Amy can obtain Canadian citizenship by descent despite being in the second generation born abroad.

IRCC also takes a practical approach to counting individual days. Internal training explains that a calendar day counts when the parent was physically present in Canada that day. The length or purpose of the stay does not necessarily change the result. However, some periods do not count, including time serving a sentence in Canada. Crown servant rules also operate differently from ordinary physical-presence calculations. Applicants should therefore reconstruct their histories carefully rather than estimate three years from broad residence dates.

IRCC Now Uses a Physical-Presence Form

IRCC has operationalized the new requirement through form CIT 0555. The form helps applicants establish the Canadian parent’s physical presence. It asks for periods of presence in Canada and related travel information. The applicant may need to reconstruct many years of movement between Canada and other countries. IRCC updated this form after Bill C-3 took effect. The current proof-of-citizenship instructions also direct affected applicants to use it.

The form reflects the same approach described in the internal officer presentation. Applicants may need to list entries into Canada, departures, destinations, and reasons for travel. They must also calculate the number of days that count toward physical presence. As a result, a parent with a complicated travel history may face a substantial documentation exercise. Small gaps or inconsistencies matter when the total approaches 1,095 days. Applicants should review their records before submitting the calculation.

Evidence May Become the Central Issue

The new citizenship-by-descent framework can turn a legal question into a significant evidentiary exercise. A parent may need records covering many years or several decades. Old passports, school records, tax documents, employment records, and immigration records may become important. Leases, mortgages, insurance records, and government correspondence can also help. Applicants should reconcile conflicting travel dates before submitting the application. Strong documentary continuity can make a considerable difference.

IRCC’s current instructions identify several types of evidence that applicants may use. Employment records and T4 slips can help establish work in Canada. School transcripts can establish periods of study. Passports and entry records can support travel calculations. Residential documents can establish where the parent lived during particular periods. IRCC may also request additional documentation if the initial evidence does not establish the required presence.

A missing record does not necessarily end the application. However, the applicant still needs to establish the required facts. Applicants should explain missing records and provide alternative evidence where possible. Practitioners may also prepare a chronological table that connects residence, employment, study, and travel. That approach can help an officer quickly understand a long history. It can also expose weaknesses before IRCC raises them.

Affidavits Have Important Limits

IRCC may accept affidavits in some physical-presence cases. However, current instructions limit who may provide them. The applicant cannot simply create an affidavit establishing the Canadian parent’s presence. Certain close family members also cannot provide these supporting affidavits. IRCC prefers evidence from independent people or organizations with direct knowledge. Therefore, objective documentary records usually provide a stronger foundation.

This rule can create difficulties in very old cases. Employment records may no longer exist. Schools may have destroyed older files. Passports may also have expired or disappeared decades ago. In those situations, applicants may need to combine several independent sources. Practitioners should explain why stronger records no longer exist, rather than leaving unexplained evidentiary gaps.

Crown Servant Exceptions Still Matter

Bill C-3 preserves important Crown servant exceptions. These provisions can affect people whose Canadian parent or grandparent served Canada or a province abroad. Relevant service can include employment with the Canadian Armed Forces or federal public administration. Provincial public service can also qualify under the circumstances described in the Act. However, the rules exclude certain locally engaged employees. Practitioners should investigate Crown service before assuming that the 1,095-day requirement applies.

The Crown servant provisions can significantly change the analysis. A family may appear unable to satisfy the ordinary physical-presence threshold. However, qualifying government service abroad may engage a statutory exception—current IRCC instructions specifically direct applicants to consider these provisions. Therefore, family employment history can matter almost as much as family citizenship history. Applicants relying on the exception should preserve official employment records.

Adoption Follows a Similar Framework

Bill C-3 also changes the rules for people adopted abroad. Parliament sought greater consistency between children born abroad and children adopted abroad. For relevant adoptions before December 15, 2025, the amendments expand access to the direct citizenship grant process. For relevant adoptions after that date, the Canadian adoptive parent may need 1,095 days in Canada before the adoption. IRCC uses the physical-presence framework in affected adoption cases. Crown servant exceptions can also remain relevant.

However, adoption cases contain an important timing difference. Citizenship by descent can arise automatically under section 3 when the statutory requirements apply. A direct adoption grant under section 5.1 requires an application and approval. IRCC’s internal presentation makes this distinction clear. In its adoption example, the adopted person becomes Canadian when IRCC grants the application. Therefore, practitioners should not treat citizenship by descent and citizenship through an adoption grant as the same legal mechanism.

Bill C-3 Also Expanded Simplified Renunciation

Some people became Canadian automatically because Bill C-3 changed the law. Not everyone will want to keep that citizenship. Another country may restrict dual nationality or attach legal consequences to another nationality. Bill C-3 therefore expanded access to a simplified renunciation process. The internal presentation also notes that t, in specified circumstances,he process can now include minors iApplicants should confirm which renunciation mechanism applies before filing anything.

Renunciation can have serious consequences for the person and later generations. Someone should not renounce simply because citizenship creates administrative inconvenience. The person should first understand nationality rules in every relevant country. They should also consider future travel, immigration, inheritance, and family consequences. Practitioners should document those discussions carefully when advising on renunciation.

Two Difficult Cohorts Appeared in IRCC’s Internal Training

The internal officer presentation reveals an important implementation concern. IRCC initially identified two groups that Bill C-3 might not automatically remedy as intended. The first involved certain people born before January 1, 1947 or April 1, 1949. Their claims depended on paragraphs 3(1)(q) or 3(1)(r) of the Citizenship Act. IRCC instructed officers to set those files aside while the department developed further operational guidance. The issue arose from the technical wording of the historical citizenship provisions.

The second group involved some multi-generational claims with a deceased parent or ancestor. IRCC questioned whether the new provisions concerning deceased relatives reached every historical situation. The presentation specifically discussed deaths that occurred before the 2009 or 2015 citizenship reforms. IRCC again instructed officers to set those cases aside temporarily. Current legislation and public guidance now address historical cases more broadly. However, complex deceased-ancestor files still require careful statutory analysis.

These internal instructions deserve some caution today. The presentation reflects IRCC’s operational position around the time Bill C-3 came into force. It does not necessarily prove that every temporary set-aside instruction remains active in October 2026. Practitioners should compare the present Citizenship Act with IRCC’s current instructions. They should also seek clarification when a complex historical chain does not fit the public guidance. Ultimately, the legislation governs the legal outcome.

What Current IRCC Instructions Say

IRCC has now incorporated many Bill C-3 rules into its public application guides and forms. The current CIT 0001 guide explains the citizenship-by-descent framework and supporting documents. CIT 0555 provides the physical-presence calculation process. Adoption instructions also incorporate the new substantial-connection rules. Together, these materials now reflect much of the operational framework that IRCC presented to officers before implementation. They provide applicants with considerably more detail than the early public announcements.

However, IRCC also warns that its application guides do not constitute legislation. The Citizenship Act and Citizenship Regulations prevail when a discrepancy arises. That distinction matters greatly in older citizenship files. Historical claims can involve several versions of Canadian citizenship legislation. They can also involve deemed citizenship, loss, restoration, death, and renunciation. Practitioners should therefore use IRCC instructions as operational guidance, not as substitutes for statutory analysis.

What the Courts Have Said since Bill C-3

As of October 3, 2026, I did not locate a reported Federal Court, Federal Court of Appeal, or Supreme Court decision directly interpreting Bill C-3’s new 1,095-day descent requirement. I also did not locate a reported decision assessing the constitutionality of the new substantial-connection test. Therefore, Bjorkquist remains the leading constitutional decision behind the legislative reform. However, Bjorkquist considered the former first-generation limit. It did not decide the constitutionality of Bill C-3’s final wording.

This distinction is important for practitioners. Parliament responded to the constitutional concerns identified in Bjorkquist, but the courts have not yet developed a substantial body of jurisprudence interpreting the replacement scheme. Therefore, practitioners should not describe the 1,095-day rule as a test that higher courts have already approved. Future litigation may address the meaning of physical presence, evidentiary disputes, or the constitutionality of the new framework. Until that happens, the statutory wording and IRCC’s operational interpretation will remain particularly important.

Related Federal Court decisions concerning physical presence may still provide useful evidentiary guidance. However, those decisions often involve ordinary citizenship grants rather than citizenship by descent. The statutory tests serve different purposes. Therefore, practitioners should use such cases carefully. They may assist with evidentiary principles, but they do not directly interpret Bill C-3. A court decision about section 5 should not automatically determine the meaning of section 3.

Citizenship Status and Proof of Citizenship Are Different

Bill C-3 can make someone a Canadian citizen automatically. That person does not need IRCC to grant citizenship if the Citizenship Act already gives it. However, the person may still need a citizenship certificate to prove the status. The certificate can support a Canadian passport application and other official transactions. Therefore, the practical process often requires a proof application even when the legal status already exists.

This distinction also affects refusals. A refusal of a proof application does not necessarily mean the applicant could never have Canadian citizenship. The problem may concern insufficient evidence. Alternatively, the disagreement may concern IRCC’s interpretation of the Citizenship Act. Practitioners should identify the issue before deciding how to respond—a stronger evidentiary package and a legal challenge address very different issues.

What If the Canadian Parent Does Not Have 1,095 Days?

A child born after December 15, 2025 may fail the descent test because the Canadian parent lacks sufficient physical presence. That result does not necessarily eliminate every future pathway to citizenship. The person may later obtain permanent resident status and qualify for citizenship under the ordinary grant provisions. Parliament also maintains a special route for certain stateless people born to Canadian parents. That route contains its own eligibility conditions and physical-presence requirements.

The statelessness provision does not create a general exception to the parental 1,095-day rule. The person must satisfy the specific statutory requirements for that grant. Those requirements include age, statelessness, and physical presence in Canada. Therefore, practitioners should treat it as an independent citizenship route. They should not use it as a substitute for an unsuccessful citizenship-by-descent claim.

A Practical Citizenship by Descent Assessment

A proper citizenship-by-descent assessment should begin with dates, locations, and statutory status. First, determine how every relevant parent or ancestor became Canadian. Next, compare the applicant’s birth or adoption date with December 15, 2025. For a later birth, determine whether subsection 3(3) actually triggers the 1,095-day rule. Only then should you calculate the parent’s physical presence. Historical cases may also require analysis of former section 8, Crown service, deceased ancestors, renunciation, revocation, and adoption provisions.

Documentation should follow the legal analysis rather than replace it. A strong family tree alone does not establish citizenship. Likewise, a Canadian ancestor alone does not answer every legal question. Applicants need reliable records connecting each relevant generation. Practitioners should reconcile key dates and clearly explain unusual historical events. Complex cases often benefit from a chronology linking each fact to the corresponding Citizenship Act provision.

What Bill C-3 Means for Canadian Families

Bill C-3 significantly expands citizenship by descent, especially for people born before December 15, 2025. It repairs many historical exclusions and removes the former blanket second-generation barrier for earlier births. However, Parliament did not create unlimited future transmission without a Canadian connection. For later births, certain Canadian parents must establish 1,095 cumulative days of physical presence in Canada. Current IRCC forms now provide a clearer process for proving that connection.

The law remains relatively new. Courts have not yet developed substantial jurisprudence interpreting the new provisions. IRCC may also continue refining its operational instructions as difficult cases arise. Therefore, practitioners should confirm the current legislation and instructions when preparing each application. End users should avoid relying entirely on family stories or online eligibility tools. A detailed review is especially important when the citizenship chain spans several generations.

Resources

• Citizenship Act
• An Act to Amend the Citizenship Act (2025)
• Canada Gazette: Order Fixing December 15, 2025 as the Coming-into-Force Date
• IRCC: Changes to Citizenship Rules in 2025
• IRCC: Bill C-3 Comes into Effect
• IRCC Guide CIT 0001: Application for a Citizenship Certificate
• IRCC: Citizenship Certificate Application Forms, Including CIT 0555
• IRCC Guide CIT 0009: Citizenship for an Adopted Person
• Library of Parliament: Legislative Summary of Bill C-3
• Bjorkquist et al. v. Attorney General of Canada, 2023 ONSC 7152
• Bjorkquist et al. v. Attorney General of Canada, 2025 ONSC 6288
• IRCC, Bill C-3: An Act to Amend the Citizenship Act, Information Session for Officers, December 2025, disclosed under the Access to Information Act. (posted on Steven Meuren’s website)

Disclaimer

This article provides general information about Canadian citizenship law and practice. It does not provide legal advice or create a consultant-client relationship. Government policies and application instructions may also change. People with complex citizenship histories should obtain advice based on their individual circumstances.