Bill C-3 changes Canadian citizenship rules: Who can pass citizenship to future generations?

Canada has entered a new phase in citizenship by descent after Bill C-3 came into force, amending the Citizenship Act and changing one of the most debated rules in recent years: the first-generation limit for people born outside Canada.

The new law matters not only to Canadian families living inside Canada, but also to families abroad, children born outside the country, descendants of Canadians, internationally adopted children, and people affected by older gaps in citizenship law, often referred to as “Lost Canadians.”

Before this change, Canadian citizenship by descent was generally limited to the first generation born abroad. In simple terms, if someone was Canadian because they were born outside Canada to a Canadian parent, they could not always automatically pass Canadian citizenship to their own child if that child was also born outside Canada. This left some families unable to continue citizenship across generations, even when they had a real connection to Canada.

What changed?

According to the Government of Canada, Bill C-3 removes the first-generation limit in some situations. People who were born or adopted outside Canada before December 15, 2025, and had a Canadian parent, may now be Canadian citizens automatically in most cases, even if they are in the second or later generation born abroad.

For people born or adopted outside Canada on or after December 15, 2025, the law creates an important condition. If the Canadian parent was also born or adopted outside Canada, that parent must show they spent at least 1,095 days physically present in Canada before the child’s birth or adoption.

This is known as the “substantial connection” requirement. The goal is to expand access to citizenship while still requiring a meaningful link to Canada.

What does 1,095 days mean?

The number equals about three years of physical presence in Canada. In simple terms, a Canadian parent born abroad who wants to pass citizenship to a child born abroad after the law came into force must prove they spent a total of at least three years in Canada before that child was born or adopted.

Who is most affected?

The law is especially important for Canadian families living abroad with children born outside Canada.

It also affects descendants of Canadians who were previously excluded because of the first-generation limit.

It may help some “Lost Canadians,” meaning people who lost or never obtained citizenship because of older citizenship rules.

It also matters for families with children adopted outside Canada, as the law includes changes related to citizenship grants for adopted people in certain situations.

It may also affect immigrant-origin Canadian families whose lives and work have moved across several countries and whose children or grandchildren were born outside Canada.

Does this mean a passport is automatic?

No. This is an important point. Anyone who thinks they became Canadian because of Bill C-3 should apply for a citizenship certificate as official proof. That certificate can then help them apply for a Canadian passport and avoid delays or complications when travelling to Canada.

In other words, the law may create the right, but proof of citizenship is still a necessary step.

Why does this matter to the community?

Many families in Canada live across borders. Some work in the Gulf, Europe, the United States, or the Middle East. Others have children born abroad during study, employment, or temporary relocation. In the past, being born outside Canada could create a serious problem when trying to pass citizenship to the next generation.

The new law reopens the door for groups that were previously excluded, but it does not make citizenship transmission unlimited and automatic forever. The key message is clear: a real connection to Canada now matters.

What should families do now?

Families who think this law may apply to them should not rely on guesses or social media posts. The first practical step is to review IRCC’s official guidance on the citizenship rule changes, then gather documents proving family relationships, Canadian citizenship, and physical presence in Canada where needed.

Important documents may include birth certificates, citizenship certificates, old passports, school or employment records in Canada, leases, tax records, or any documents proving actual time spent in the country.

The bottom line

Bill C-3 does more than amend a legal clause. It touches a deeply personal family question: who remains Canadian when a family’s life stretches across borders?

The new law gives many families a chance to correct older exclusions. But it also sets a clear rule for future generations: citizenship by descent can extend beyond Canada, but it requires proof of a real connection to the country.