Canada Rewrites citizenship by Descent Rules
In short: Canada has given royal assent to Bill C-3, An Act to amend the Citizenship Act (2025), which will overhaul how citizenship by descent works and effectively end the strict first-generation limit once it comes into force.
- Royal assent: Bill C-3 received royal assent in November 2025, marking a major shift in citizenship by descent rules.
- Retroactive fairness: Many people excluded in the past because of the first-generation limit or older rules will obtain Canadian citizenship once the law is in force.
- Going forward: Canadians born or adopted abroad will be able to pass citizenship to children born or adopted outside Canada if they show a substantial connection to Canada.
- Bill C-3 modernizes Canada’s citizenship laws and responds directly to court findings that parts of the first-generation limit were unconstitutional.
- Once in force, it will grant citizenship to people who would have been citizens but for the first-generation limit or outdated provisions of earlier citizenship laws.
- In future, Canadians born or adopted abroad will still be able to transmit citizenship if they demonstrate a “substantial connection” to Canada (details will be set in regulations).
- The law is not yet in force: an order in council will set the coming-into-force date, and the current interim measure remains available in the meantime.
- IRCC guidance confirms that those applying under the interim measure will have their applications processed under the new rules once they take effect.
In November 2025, Immigration, Refugees and Citizenship Canada (IRCC) announced that Bill C-3, An Act to amend the Citizenship Act (2025), received royal assent. This legislation is a major step in modernizing Canada’s rules on citizenship by descent and addressing long-standing unfairness experienced by so-called “lost Canadians.”
Bill C-3 will:
- Provide Canadian citizenship to people born before the law comes into force who would have been citizens if the first-generation limit or other outdated provisions had not existed.
- Create a new, consistent pathway for children born or adopted outside Canada on or after the coming-into-force date, where a Canadian parent born or adopted abroad can pass citizenship if they demonstrate a substantial connection to Canada.
- Maintain the principle that citizenship by descent should reflect real, demonstrated ties to Canada while eliminating arbitrary exclusions.
The law will come into force on a date fixed by order in council. Until then, IRCC confirms that an interim measure remains in place for people affected by the first-generation limit, and that applications submitted under this measure will transition to the new rules once they take effect.
IRCC has not yet released a precise estimate of how many individuals will gain or regain citizenship under Bill C-3. However, existing data on past changes and court rulings provide important context:
| Metric | Latest value | Reference period | Official source |
|---|---|---|---|
| Royal assent date for Bill C-3 | November 2025 | 2025 | Parliament of Canada / IRCC |
| People who came forward after earlier “Lost Canadians” fixes | About 20,000 individuals | Changes in 2009 and 2015 | IRCC “Lost Canadians” backgrounders |
| Suspension of court ruling on first-generation limit | Until January 20, 2026 | 2023–2026 | IRCC – First-generation limit guidance |
These figures suggest that the group of people who may benefit from Bill C-3 is significant, but we must wait for formal IRCC impact estimates to know the full scale.
Canadians with children or grandchildren born abroad
The most directly affected group includes Canadians who were themselves born or adopted outside Canada and whose children (or sometimes grandchildren) were born abroad. Under the previous first-generation limit, many of these children were not automatically citizens despite having deep family ties to Canada. Bill C-3 is designed to restore or provide citizenship to people who would have qualified but for these restrictions.
People previously excluded as “lost Canadians”
Several groups lost or were denied citizenship because of historic rules in earlier citizenship laws, including the 1947 Act. Many of these cases were partially resolved by amendments in 2009 and 2015, but gaps remained. The new law closes additional gaps by retroactively granting citizenship to people who can be clearly identified as having been unfairly excluded.
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Applicants using the interim measure for first-generation limit cases
IRCC has confirmed that the interim measure for people affected by the first-generation limit remains in place until Bill C-3 comes into force. Applications submitted under this measure will not have to be re-submitted. Instead, they will be assessed using the new rules once they are active, which is particularly important for families that need urgent resolution.
Future children of Canadians living abroad
Going forward, Canadians who live abroad for work, study or family reasons will have a clearer framework: they may pass citizenship to children born or adopted abroad if they can show a substantial connection to Canada. Details of what counts as a substantial connection will be clarified by regulations, but this will generally reflect meaningful, real ties rather than a purely symbolic link.
- Canadian diaspora communities: Many Canadians who live and work globally will gain more certainty about their family’s status and future plans.
- Consular and immigration services: Missions abroad and IRCC processing centres may see an increase in citizenship certificate and proof-of-citizenship applications once the new rules are in force.
- Other immigration categories: Some individuals who would otherwise have applied for permanent residence (PR) may become citizens directly under the new rules, slightly changing demand in certain PR streams over time.
- Employers and educational institutions: For some candidates, Canadian citizenship instead of temporary or permanent resident status can change work authorization or tuition categories, potentially affecting HR and admissions planning.
(Analysis/opinion) Bill C-3 is both a legal and policy response to the realities of modern, mobile Canadian families. The Ontario Superior Court of Justice found that the first-generation limit created unequal treatment and unacceptable outcomes for children of Canadians born abroad. The government chose not to appeal, signalling that it accepted the need for reform.
From a policy perspective, the reform balances two objectives:
- Correcting historic injustice: Restoring or granting citizenship to those wrongly excluded under old rules aligns with Canada’s broader human-rights and equality commitments.
- Ensuring genuine connection: Requiring a substantial connection to Canada for future generations ensures that citizenship by descent remains tied to a real relationship with the country, not simply a remote ancestral link.
(Analysis/opinion) For many families, this may effectively close the “Lost Canadians” chapter of citizenship policy, while giving clarity to Canadians who pursue careers and family life across borders. It may also bring Canada’s rules closer to other peer countries that allow citizenship transmission beyond the first generation, subject to certain residence or connection conditions.
If you believe you or your child may be a “lost Canadian”
- Review IRCC’s guidance on changes to the first-generation limit and the interim measure to see if your situation fits the affected categories.
- Gather documentation showing your parents’ and grandparents’ citizenship, places of birth, and any prior proof of status.
- Consider applying now under the interim measure if you meet the criteria, especially if there is urgency (for example, travel, schooling, employment or loss of another status).
If you are a Canadian living abroad planning to have or adopt children
- Keep records that demonstrate your substantial connection to Canada (residence history, tax filings, employment or study in Canada, etc.).
- Monitor IRCC updates for the coming-into-force date and details on how substantial connection will be assessed.
- Plan early: understanding the rules now can help you avoid gaps in your child’s status later.
If you are an immigration practitioner or advisor
- Update your internal templates, checklists and client questionnaires to screen for possible Bill C-3 eligibility.
- Segment your client base: identify those who may move from PR pathways to direct citizenship under the new rules.
- Prepare educational materials (webinars, FAQs, client alerts) explaining the shift in simple terms for both Canadians abroad and their family members.
Q1. Is Bill C-3 already in force?
No. Bill C-3 has received royal assent, but it will only come into force on a date set by order in council. Until then, the current interim measure for people affected by the first-generation limit remains in place.
Q2. I was born outside Canada, and my Canadian parent was also born outside Canada. Will I automatically become a citizen?
Once the new rules are in force, individuals who would have been citizens but for the first-generation limit or outdated provisions are expected to obtain citizenship automatically. However, details on implementation and how IRCC will confirm this in practice are still to be announced. For now, it is safer to assume you must follow existing procedures until IRCC issues clear instructions.
Q3. What does “substantial connection to Canada” mean?
IRCC has not yet published a detailed definition. In general, it is expected to refer to meaningful ties such as residence, work, study or other significant periods spent in Canada. The exact criteria will be set out in regulations or policy guidance once the law is closer to coming into force.
Q4. Do I need to re-apply if I already submitted under the interim measure?
No. IRCC has stated that applications submitted using the interim measure will not need to be re-submitted and will be processed under the new rules when they come into effect.
Q5. How does this affect other immigration applications, such as PR or temporary residence?
In some cases, individuals who are currently applying for or holding temporary or permanent resident status may later discover that they are (or will become) citizens under the new rules. In such situations, their strategy may change, but until IRCC issues more detailed guidance, applicants should continue following the instructions that apply to their current immigration category.
Q6. When should I wait and when should I act now?
If your situation is urgent (for example, expiring status, time-sensitive travel, or educational enrolment), it may be safer to proceed under the existing interim measure or other available pathways rather than waiting. If your situation is stable, you may choose to monitor updates and apply once the new provisions take effect. A personalized strategy is often best.
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- Internal resource (example): A complete guide to Canadian citizenship by descent and proof of citizenship.
- Internal resource (example): Overview of Canadian citizenship grants, proofs and resumption.
- Internal resource (example): How Bill C-3 may change strategies for PR vs. direct citizenship.
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