As of 2026, major changes to Canadian citizenship law have expanded eligibility for citizenship by descent. For the first time, certain individuals born or adopted abroad to a Canadian parent or grandparent may now qualify for Canadian citizenship.
You may be eligible for Canadian citizenship by descent if:
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For children born or adopted abroad on or after December 15, 2025, to a Canadian parent who was also born or adopted outside Canada, a substantial connection requirement applies.
This means the Canadian parent must have lived in Canada for at least three years (1,095 days) before the child’s birth or adoption.
Example 1: You were born in the US or any country to a Canadian-born parent
Example 2: Your grandparent was born in Canada
Example 3: You have a Canadian grandparent, but were previously excluded under the first-generation limit
Example 4: Your Canadian parent was born abroad to Canadian grandparents
Eligible individuals must apply for a Proof of Canadian Citizenship certificate, which formally confirms citizenship status.
After receiving the citizenship certificate, you may apply separately for a Canadian passport. A passport is a travel document and cannot be issued without proof of citizenship.
Documentation requirements vary by case but commonly include:
If the applicant was born after December 15, 2025, proof of the Canadian parent’s residence in Canada (to meet the substantial connection rule) will also be required.
Alternative documents may be accepted if original records are unavailable. Working with a qualified Canadian immigration attorney can help advise you on the requirements you will need, as well as advise you on the best strategy for obtaining or supplementing any missing documentation.
You will need a long-form birth certificate for every person in the chain — yourself, your parent, your grandparent, and potentially further back. The wallet-sized short-form certificate most people have on hand is insufficient because it does not list both parents. Long-form birth certificates establish the parent-child link at each step of the descent.
For older ancestors (pre-1900s), civil registration records may be incomplete or nonexistent in some regions. Church registers — particularly in rural Quebec and the Maritime provinces — may be the most reliable, or the only available, record. Provincial archives often hold both Catholic and Protestant church records.
Marriage certificates establish name changes and confirm family relationships across generations. They are particularly important where a woman changed her name at marriage, and her birth and marriage records appear under different names.
If a Canadian ancestor emigrated to the United States and later became a U.S. citizen, their naturalization records can establish their prior Canadian citizenship. Pre-1906 naturalization records in the U.S. are held at the county court level; post-1906 records are held by U.S. Citizenship and Immigration Services (USCIS) and can be requested through a Freedom of Information Act (FOIA) application.
For gaps in the documentary chain, or for ancestors born before civil registration was consistent, Canadian census records can provide powerful corroborating evidence. Canadian census records from 1871, 1881, 1891, 1901, 1911, 1921, and 1931 are available through Library and Archives Canada. These records can confirm that an ancestor was a resident of Canada and help establish that they were Canadian citizens after 1947.
For an ancestor born in rural New Brunswick, Prince Edward Island, or a Quebec parish in the 1800s, the local church register may be the most reliable record available. Many parish registers have been digitized and are accessible through provincial archives or platforms like Ancestry.ca.
Start gathering documents early. The BAnQ in Montreal went from 32 archive requests in January 2025 to over 1,000 in January 2026 — mostly from Americans. Nova Scotia, New Brunswick, Ontario, and BC have all reported similar surges. Expect delays and use a trackable courier when submitting.
Processing times typically range from 11 to 15 months, depending on case complexity.
Each application is individually assessed, taking into account:
Canadian citizenship provides:
Canada allows dual citizenship. For example, U.S. citizens may generally hold both U.S. and Canadian citizenship simultaneously, as U.S. law does not require choosing one nationality over the other.
Tax obligations depend on residency status — citizenship alone does not automatically create Canadian tax liability if you do not reside in Canada.
Previously, Canada’s “first-generation limit” prevented Canadian citizens born abroad from passing citizenship to their children born abroad.
As a result, citizenship by descent generally ended after one generation born outside Canada.
With the coming into force of Bill C-3, this restriction has been removed for many individuals, expanding eligibility to those with a Canadian parent or grandparent.
These changes also address longstanding issues affecting individuals often referred to as “Lost Canadians” — people who were excluded under prior versions of the law.
| Before Bill C-3 | After Bill C-3 |
|---|---|
| Citizenship ended after one generation abroad | Expanded eligibility |
| Grandchildren often excluded | Grandchildren may now qualify |
| Limited descent rights | Broader citizenship pathways |
Yes. Bill C-3 expanded eligibility to include certain second-generation individuals born abroad.
Yes.
Yes. The United States does not require individuals to renounce citizenship when acquiring another nationality.
No. You may apply for proof of citizenship at any age.
No. Citizenship by descent requires a biological or legal (adoptive) parent-child relationship.
Only if you were born on or after December 15, 2025, and your Canadian parent was also born abroad.
No. Citizenship by descent does not extend to spouses. You would need to sponsor them for permanent residence once you become a citizen.
Possibly. If they were born before December 15, 2025, they may qualify automatically depending on your status. If they are dependent children, you may be eligible to sponsor them for Canadian permanent residence.
Only if you are a “factual resident” of Canada for tax purposes
No. You must first receive your Citizenship Certificate.
Even if applying for Canadian citizenship by descent under Bill C-3 may seem straightforward, the reality is often more complex.
Every family history is unique. You may need to trace and document your lineage, determine whether you qualify under the updated rules, and ensure that all required documentation is properly prepared and submitted. Even minor errors or missing records can lead to significant delays — or even refusal.
At the Canadim Law Firm, we manage the entire process on your behalf from start to finish. We assess your eligibility, carefully review your documentation, prepare a complete and strategic application, and address any complications that may arise.
Cases involving missing records, prior citizenship issues, or complex family circumstances require particular care and legal insight.
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