Canadian citizenship is younger than you might think. For most of Canada's history, it didn't legally exist — people born or naturalized here were British subjects.[1]

That only changed in 1947. Over the decades since, Canada's citizenship laws have evolved, changing who could become Canadian, how citizenship passes from one generation to the next, and what it means today.

Here's a look at how we got here.

Before 1947, there were no Canadian citizens

Canada became a country in 1867, but that didn't immediately create Canadian citizenship.

For decades after Confederation, people born or naturalized in Canada were legally considered British subjects. Canada had its own naturalization rules, but Canadian citizenship did not yet exist as a separate legal status.[1][2]

That changed after the Second World War.

1947: Canadian citizenship is born

The Canadian Citizenship Act came into force on January 1, 1947.

For the first time, "Canadian citizen" became a distinct legal status. Canada was also the first Commonwealth country to establish its own citizenship separate from Britain.[1]

Just two days later, on January 3, 1947, Prime Minister William Lyon Mackenzie King received Canada's first citizenship certificate, numbered 0001.[3]

Canada had been developing its own national identity for decades. Now, for the first time, the law spelled out what it meant to be a Canadian citizen.

1977: Canada's citizenship laws change again

Another major change arrived on February 15, 1977, when a new Citizenship Act replaced the original 1947 legislation.

The new law made Canadian citizenship more accessible and removed a number of older provisions that had treated people differently based on factors including gender and marital status.[1][4]

One important change was the recognition of dual citizenship.

Under the original citizenship rules, dual citizenship was generally not permitted. After the 1977 changes, becoming a citizen of another country no longer automatically meant losing Canadian citizenship.[4]

Today, Canada allows its citizens to hold more than one citizenship, although the rules of the other country involved may be different.

How can someone become a Canadian citizen today?

There are several ways a person may become or already be a Canadian citizen.

Citizenship by birth

In most cases, someone born in Canada is automatically a Canadian citizen.[5]

There are limited exceptions. For example, a child born in Canada may not automatically become a citizen if a parent was working in Canada with diplomatic privileges for a foreign government or certain international organizations and the other parent was not a Canadian citizen or permanent resident.[5]

Citizenship by descent

Someone born outside Canada may also be a Canadian citizen if one of their parents was Canadian when they were born.

The exact rules can depend on when the person was born, where their Canadian parent was born and how their parent became Canadian.[5][6]

The rules surrounding citizenship by descent have changed several times throughout Canada's history, including major changes that came into effect in 2025.

Citizenship through naturalization

Permanent residents can apply for Canadian citizenship once they meet the eligibility requirements.

For most adult applicants, this includes having permanent resident status and being physically present in Canada for at least 1,095 days during the five-year eligibility period before applying. At least 730 of those days must be spent in Canada as a permanent resident.[7]

Some time spent in Canada before becoming a permanent resident can count. Each eligible day spent in Canada as a temporary resident or protected person counts as half a day, up to a maximum credit of 365 days.[7]

Applicants may also need to have filed Canadian income taxes for at least three years during the five-year period, if they were required to file.[7]

Adults between the ages of 18 and 54 generally need to demonstrate adequate speaking and listening ability in English or French and take a citizenship test about Canada.[7]

Citizenship rules can vary depending on someone's circumstances, so prospective applicants should always check the latest requirements directly with Immigration, Refugees and Citizenship Canada.

Canadian citizenship by descent changed in 2025

The most recent major change to citizenship by descent came into effect on December 15, 2025, when Bill C-3 amended the Citizenship Act.[6]

For years, Canada had what was commonly called the "first-generation limit" on citizenship by descent.

Under the previous rules, Canadian citizenship generally could not automatically be passed down beyond the first generation born outside Canada.

The 2025 changes removed that limit.[6]

For people born outside Canada on or after December 15, 2025, a person born abroad to a Canadian parent who was also born abroad may now be a Canadian citizen if that Canadian parent had a substantial connection to Canada.

To demonstrate this connection, the Canadian parent generally must have spent at least 1,095 days in Canada before the child's birth.[6]

The changes also granted or restored citizenship to many people born before December 15, 2025, who had previously been excluded by earlier citizenship-by-descent rules.[6]

Because citizenship by descent can depend on birth dates, generations and individual family circumstances, anyone who thinks these changes could apply to them should confirm their status through IRCC.

What changes when you become a Canadian citizen?

Canadian citizens have certain rights that permanent residents do not.

Citizens can vote and run for office in federal, provincial and territorial elections. They can also apply for a Canadian passport.[8]

Citizenship comes with responsibilities too, including obeying Canadian laws, serving on a jury when called and participating in Canada's democratic and community life.[8]

For most people who become citizens through naturalization, the citizenship ceremony is the final legal step in the process.[8]

During the ceremony, new citizens take the Oath of Citizenship, reflecting their commitment to Canada, its laws and the responsibilities that come with citizenship.

Citizenship is also a story about belonging

The legal definition of Canadian citizenship has changed a great deal since 1947.

But becoming Canadian is rarely just about a new passport or a change in legal status. It's the years behind it: arriving for the first time, finding a community, building a career, raising a family, exploring the country, and eventually deciding to officially call Canada home.

And Canada's citizenship story keeps evolving alongside the people who make the country their home.

Canoo is one way to experience more of that journey — discovering Canada's museums, parks, cultural spaces and communities.

Whether you've recently arrived in Canada, become a permanent resident or taken the Oath of Citizenship, there's always more of Canada to discover.

References

[1] Government of Canada, Immigration, Refugees and Citizenship Canada. Citizenship Acquisition in Canada: An Overview based on Census 1986 to 2006.

[2] Library and Archives Canada. Citizenship and naturalization records.

[3] Government of Canada, Immigration, Refugees and Citizenship Canada. 70th Anniversary of Canadian Citizenship.

[4] Government of Canada, Immigration, Refugees and Citizenship Canada. Chronology of Lost Canadians and the First-generation Limit.

[5] Government of Canada, Immigration, Refugees and Citizenship Canada. Check if you may be a citizen.

[6] Government of Canada, Immigration, Refugees and Citizenship Canada. Change to citizenship rules in 2025.

[7] Government of Canada, Immigration, Refugees and Citizenship Canada. Canadian citizenship for adults and minor children: Who can apply.

[8] Government of Canada, Immigration, Refugees and Citizenship Canada. About the citizenship ceremony.

This article is intended for general information only and does not constitute legal or immigration advice. Canadian citizenship rules can change. For the latest eligibility requirements and information about your individual circumstances, consult Immigration, Refugees and Citizenship Canada.