Canada has introduced important changes to its citizenship laws. These changes may help thousands of people who previously could not obtain Canadian citizenship through their parents. The updated rules for Canadian citizenship by descent came into effect on December 15, 2025, following the passage of Bill C-3. The new legislation changes how Canadian citizenship passes from parents to children born or adopted outside Canada. It also addresses long-standing issues affecting people known as Lost Canadians.
For many families, this development creates new opportunities to establish their connection to Canada. However, eligibility depends on several factors, including the applicant’s date of birth, family history and the Canadian parent’s connection to the country.
1. What is Canadian Citizenship by Descent?
Canadian citizenship by descent refers to citizenship that a person obtains through a Canadian parent rather than through birth in Canada or the naturalization process. For example, imagine a Canadian citizen moves to India, the United Kingdom or another country. They have a child while living abroad. Depending on the parent’s citizenship history and the applicable rules, the child may also qualify for Canadian citizenship. Previously, Canada generally restricted citizenship by descent to the first generation born outside the country.
This meant that a Canadian citizen born outside Canada could not automatically pass citizenship to their own child who was also born abroad. Bill C-3 changes this approach. The legislation provides a pathway for certain people born in the second generation or later outside Canada to obtain citizenship. It also restores citizenship to people who were previously excluded under older laws. These changes recognize the circumstances of modern Canadian families, many of whom live, work and raise children in different countries.
2. What changed under Bill C-3?
Bill C-3, formally known as An Act to Amend the Citizenship Act (2025), received Royal Assent on November 20, 2025. The legislation came into force on December 15, 2025. One of its main objectives was to change the first-generation limit on citizenship by descent. Under the previous rules, a Canadian parent who was themselves born outside Canada generally could not pass citizenship automatically to a child born abroad. The new legislation addresses this restriction.
The changes cover two important groups:
1. People born before December 15, 2025-
Many people born outside Canada before this date may now automatically be Canadian citizens if they have a qualifying Canadian parent or meet the relevant historical citizenship provisions.
2. People born on or after December 15, 2025-
Children born outside Canada in the second generation or later may qualify when their Canadian parent meets the new substantial connection requirement. This distinction is important. The date of birth can change which eligibility rules apply to an applicant. People should therefore review their family history before deciding how to proceed.
3. Who may qualify under the new rules?
The updated Canadian citizenship by descent rules may benefit several categories of people. These include:
- People born outside Canada to a Canadian parent who was also born abroad.
- People who were excluded under the previous first-generation limit.
- Certain descendants of people affected by older citizenship laws.
- People who lost citizenship because of outdated provisions.
- Certain children adopted outside Canada by Canadian citizens.
However, having a Canadian grandparent does not automatically establish eligibility. Applicants must demonstrate the required connection through their family history.
For example, consider this situation: A grandfather was born in Canada. His daughter was born in another country and acquired Canadian citizenship through him. Later, she had a child outside Canada. Under the previous first-generation limit, the child would generally not have obtained Canadian citizenship through the mother. Under Bill C-3, the child may qualify depending on the applicable date-of-birth rules.
For people born before December 15, 2025, the new law may restore citizenship automatically if the relevant requirements are met. For children born on or after that date, the Canadian parent must generally demonstrate the required physical presence in Canada before the child’s birth. Every family situation requires an individual review.
4. The important 1,095-day requirement:
One of the most important features of the new legislation concerns the substantial connection requirement. For children born outside Canada on or after December 15, 2025, in the second generation or later, the Canadian parent must demonstrate at least 1,095 days of physical presence in Canada before the child’s birth.
This equals three years. The requirement helps establish that the Canadian parent has a meaningful connection to Canada. It is important to understand that the 1,095 days do not necessarily need to be consecutive. The parent can accumulate the required days over different periods.
1. Example of the three-year rule:
Consider a Canadian citizen who was born outside Canada to a Canadian parent. This person later has a child outside Canada after December 15, 2025. The child may qualify for citizenship if the Canadian parent can demonstrate at least 1,095 cumulative days of physical presence in Canada before the child’s birth. If the parent cannot establish the required physical presence, the child may not qualify through this particular citizenship-by-descent provision. The family should examine the parent’s travel and residence history before submitting an application.
2. What documents can prove physical presence?
IRCC may consider different records to establish physical presence in Canada. Examples include:
- Employment records.
- Tax documents and T4 slips.
- School transcripts and educational records.
- Rental agreements.
- Mortgage statements.
- Residential insurance documents.
- Passport records.
- Travel history.
- Government-issued records.
- Other reliable documents demonstrating physical presence.
Applicants should organize these documents carefully. A combination of records may provide a clearer picture of the parent’s time in Canada.
5. What are lost Canadians?
The term Lost Canadians describes people who lost or never acquired Canadian citizenship because of older citizenship laws. Over the years, several provisions of Canada’s citizenship legislation created situations in which individuals lost citizenship or could not pass it to their children. Some people were affected by historical rules concerning birth outside Canada, registration requirements and citizenship retention.
Previous legislative changes in 2009 and 2015 addressed many of these situations. However, some individuals remained excluded. Bill C-3 addresses additional cases and restores citizenship to certain people affected by these outdated provisions. This is an important development for families who have Canadian ancestry but previously faced difficulties establishing their citizenship.
Why is this important?
Some families may have assumed that their Canadian citizenship connection ended with an earlier generation. The new legislation may change that situation. However, applicants must establish the necessary family relationships and show that their ancestor acquired or retained Canadian citizenship under the applicable historical rules. Simply finding a Canadian ancestor through a family tree is not enough. Official records are essential.
6. Citizenship for children adopted abroad:
The new legislation also addresses children adopted outside Canada by Canadian citizens. Previously, the rules surrounding citizenship for adopted children could create different outcomes depending on the parent’s citizenship history. Bill C-3 provides a more consistent framework. For certain adoptions completed before December 15, 2025, eligible adopted children born abroad may apply for a direct grant of citizenship.
For adoptions on or after December 15, 2025, involving a Canadian parent born or adopted abroad, the parent must generally demonstrate the required 1,095 days of physical presence in Canada before the adoption. This distinction is important for Canadian families who adopt children internationally. Adoption does not automatically guarantee citizenship. Applicants must satisfy the applicable legal requirements and provide supporting adoption and identity documents. Families should review the citizenship rules before making travel or relocation arrangements.
7. How can you apply for proof of Canadian citizenship?
If you believe the new legislation makes you a Canadian citizen, you may need to apply for a citizenship certificate. A citizenship certificate is official proof of Canadian citizenship. It confirms that the individual is a Canadian citizen. It is not the same as a Canadian passport. The certificate can help eligible individuals apply for a Canadian passport and establish their citizenship when dealing with government authorities. The general process involves several steps.
Step 1: Review your family history-
Identify the Canadian parent or relevant ancestor through whom you may qualify.
Step 2: Establish the family relationship-
Collect birth certificates, adoption records and other documents connecting each generation.
Step 3: Review the applicable citizenship rules-
Determine whether the person falls under the rules for births before December 15, 2025, or the new rules for births on or after that date.
Step 4: Gather supporting documents-
Prepare identity documents, proof of the Canadian parent’s citizenship and relevant family records. For post-December 15, 2025 cases involving the substantial connection requirement, also prepare evidence of the parent’s physical presence in Canada.
Step 5: Submit the application-
Complete the appropriate IRCC application and follow the latest instructions concerning document submission and fees.
Step 6: Wait for IRCC’s decision-
IRCC will review the information and determine whether the applicant qualifies for Canadian citizenship. Applicants should ensure that their information is complete and accurate.
8. Documents required for citizenship applications:
Documentation plays a central role in citizenship-by-descent applications. The required documents depend on the applicant’s circumstances and family history. However, the following records may be useful.
Personal identity documents-
- Valid passport.
- Birth certificate.
- Government-issued identification.
- Recent photographs, if required.
Parent’s citizenship documents-
- Canadian birth certificate.
- Canadian citizenship certificate.
- Naturalization certificate.
- Other official records establishing Canadian citizenship.
Family relationship documents-
- Parent’s birth certificate.
- Grandparent’s birth certificate, where relevant.
- Marriage certificates, where relevant.
- Legal name-change documents.
- Adoption orders and supporting adoption records.
Physical presence documents-
For applicable cases involving children born abroad on or after December 15, 2025:
- Employment records.
- Tax documents.
- School records.
- Residential documents.
- Travel records.
- Other evidence of physical presence.
Applicants with different names across documents should also prepare supporting records explaining the differences. For example, a marriage certificate or legal name-change certificate may help establish why a parent’s name differs between birth and marriage records. Missing or inconsistent documents can make an application more difficult to assess.
9. Important 2026 implementation update:
Although Bill C-3 is now in force, applicants should also pay attention to its implementation. An IRCC government briefing note dated June 17, 2026, reported that the department had temporarily paused assessment of a small number of new applications under the new rules while reviewing certain cases. The note indicated that officials were examining the affected situations to ensure that applications were assessed fairly and consistently.
This information is important because it demonstrates that the implementation of new citizenship legislation can involve additional administrative reviews. Applicants should not interpret this limited review as a cancellation of Bill C-3. The legislation remains in force. However, people preparing an application should check the latest IRCC instructions and processing information before submitting documents or making travel arrangements. They should also avoid assuming that every application will follow the same processing timeline.
10. Can you travel to Canada after becoming a Citizen?
Obtaining Canadian citizenship and travelling to Canada are two different matters. If IRCC confirms that you are a Canadian citizen, you should obtain the appropriate proof of citizenship and travel documentation. For dual Canadian citizens travelling to Canada by air, Canadian passport requirements generally apply. Therefore, individuals who believe they acquired citizenship under Bill C-3 should not assume that a foreign passport alone will be sufficient for boarding a flight to Canada.
IRCC recommends applying for a citizenship certificate and then obtaining a Canadian passport where eligible. This preparation can help avoid unnecessary travel complications. People planning international travel should review the latest government requirements before booking flights.
11. Common mistakes to avoid:
Citizenship applications involve detailed legal and documentary requirements. Applicants should avoid these common mistakes.
1. Assuming Canadian ancestry guarantees citizenship-
Having a Canadian grandparent or great-grandparent does not automatically establish eligibility. The applicant must meet the applicable citizenship rules.
2. Ignoring the date of birth-
The rules differ depending on whether the applicant was born before or on or after December 15, 2025.
3. Providing incomplete family records-
Applicants must establish the necessary relationships through supporting documents.
4. Overlooking name differences-
Different spellings or surnames across documents can create questions during the assessment.
5. Failing to prove physical presence-
For applicable future-generation cases, the Canadian parent must demonstrate the required 1,095 days in Canada before the child’s birth or adoption.
6. Relying only on online family trees-
Genealogy websites can help identify possible family connections. However, they cannot replace official evidence establishing citizenship and parent-child relationships.
7. Using outdated application instructions-
Citizenship procedures and document requirements can change. Always consult the latest IRCC instructions.
12. How Four Pillars Immigration can help?
Understanding citizenship laws can be challenging, especially when several generations of a family were born in different countries. Historical citizenship rules, changes in legislation and documentary requirements can make it difficult to determine whether someone qualifies.
At Four Pillars Immigration, we understand the importance of accurate information and careful application preparation. Our team can help individuals and families understand the applicable citizenship requirements, identify relevant supporting documents and organize their application materials. We believe every case deserves attention to detail.
Whether you are investigating a possible citizenship claim through a Canadian parent or reviewing your family’s eligibility under Bill C-3, understanding the rules is an important first step. We believe trust begins with transparency. We explain the process, discuss potential challenges and help clients make informed decisions. We never promise guaranteed citizenship or approval because the final decision rests with the Canadian government.