Proof of Citizenship

If you were born in Canada, have a Canadian parent, or have previously received citizenship, you may need to apply for proof of Canadian citizenship

What is Proof of Citizenship?

In some cases, you do not need to apply for a grant of citizenship. Applying for proof of Canadian citizenship is a formal way to find out if you are a Canadian citizen. It is also a way to prove you are a citizen if you have lost or need new documents to show your citizenship. If your application is approved, you will receive a citizenship certificate.

  • Citizenship Certificate, including older certificates 

  • Citizenship cards 

  • Birth certificate 

  • Naturalization certificate 

  • Registration of birth abroad certificate 

  • Certificate of retention

Documents to prove your Canadian citizenship:

 

Some people who are born outside of Canada to a Canadian parent become citizens at birth. If one of your parents were born in Canada or received their Canadian citizenship before your birth, you may be eligible to apply for a Canadian citizenship certificate.

  • Were born in Canada 

  • Received Canadian citizenship as a minor when a parent or guardian applied for your citizenship 

  • Were born outside Canada, and one of your parents were either born in Canada or applied and became a citizen before you were born 

  • Applied for and received citizenship (naturalized citizen)

You are likely a Canadian citizen if you:

Brief History of Canadian Citizenship

Canadian citizenship has evolved significantly over time. Before 1947, individuals born in Canada were considered British subjects, as Canada did not yet have a separate legal citizenship status. The concept of “Canadian citizenship” was formally introduced with the Canadian Citizenship Act, 1947, which created a distinct national citizenship for the first time.

Under early rules, citizenship could generally be passed from parent to child, but the system was later amended several times to reflect changing immigration patterns and international mobility. One of the most significant changes came in 2009, when the government introduced the first-generation limit, restricting citizenship by descent to children born outside Canada to only one generation.

Over time, this restriction led to the creation of a group commonly referred to as “Lost Canadians”, individuals who had strong Canadian ancestry but were excluded from citizenship due to technical legal limitations.

Today, Canadian citizenship law continues to balance historical correction with clearer rules for future applicants, particularly those with family ties across borders.

Canada Expands Citizenship by Descent Under Bill C-3 (2025 Update)

Canada has introduced major updates to its Citizenship Act through Bill C-3 (2025), significantly changing how citizenship by descent is determined. These reforms affect individuals born outside Canada who may have previously been excluded under the former first-generation limit. Many Americans may now be eligible for Canadian citizenship through descent. Consequently, provincial archives across Canada, most notably in Ontario and Quebec, have reported a substantial increase in demand for historical records used to establish eligibility under the updated Citizenship Act.

As of December 15, 2025, individuals impacted by the old rules may now be recognized as Canadian citizens if they would have qualified under the amended legislation. This includes many people born abroad to Canadian parents who were also born outside Canada.

Who May Now Be Considered a Canadian Citizen?

Individuals born outside Canada before December 15, 2025 may now qualify for citizenship if they were previously excluded due to the first-generation restriction or similar historical rules.

A key feature of Bill C-3 is that it may allow citizenship recognition across multiple generations, provided the original Canadian connection can be established. In practice, this means individuals may be able to trace citizenship through a parent, grandparent, or even earlier Canadian ancestor (great grandparent), depending on how the family lineage is documented and how the law applies to each generation.

For births on or after December 15, 2025, citizenship by descent may still apply, but Canada has introduced a substantial connection test for Canadian parents who were themselves born abroad.

A person may be considered a Canadian citizen if:

  • Their parent was a Canadian citizen at the time of birth; and

  • The Canadian parent had at least 1,095 days (three years) of physical residence in Canada prior to the child’s birth or adoption.

Proof of Citizenship Applications

Those who believe they may qualify under the updated law must apply for a Canadian citizenship certificate as proof of status. Citizenship is considered to exist by operation of law where eligibility is met, but official documentation is required to confirm status.

Applications typically require supporting documents such as:

  • Birth certificates linking each generation

  • Marriage or name change records (if applicable)

  • Proof of Canadian citizenship for the original ancestor

  • Adoption records where relevant

The average processing time if you live in Canada is five months and nine months if you applied from outside of Canada.