A new law lets millions of Americans claim Canadian citizenship, i.e., millions of citizens of the United States can now qualify for Canadian citizenship and may also apply for Canadian passports.
Under a new Canadian citizenship law, many people with Canadian family roots are now automatically eligible for citizenship.
Place of birth does not matter under the updated rules. It also does not matter whether parents or grandparents ever lived in Canada or held Canadian passports.
Anyone born before December 15, 2025, who can prove a family connection to a Canadian ancestor may qualify for citizenship under Canada’s citizenship by descent rules. Eligible individuals can apply for proof of Canadian citizenship.
Once proof of citizenship is granted, applicants may move forward and apply for a Canadian passport.
Citizenship by descent applies to both biological children and adopted children. The law treats both situations the same when determining eligibility.
The rule change affects Americans across the United States who have Canadian ancestry. Some of the largest numbers of eligible people are believed to live in the New England region. Estimates suggest that around three million Americans in this area alone may qualify for Canadian citizenship because of family ties.
Many of these family connections date back to a large wave of migration from Canada to the United States between 1870 and 1930. During that time, many Canadians moved to New England to work in industries such as textiles and manufacturing.
Americans who gain Canadian citizenship will hold dual citizenship with both countries. Dual citizens can enjoy the rights and benefits of being citizens of both Canada and the United States.
These benefits include the right to enter Canada freely and the option to live in Canada permanently if they choose to move there.
Those who receive Canadian passports may also gain stronger travel mobility. The Canadian passport often provides visa-free or easier travel access to more countries compared to the US passport.
To apply for proof of Canadian citizenship, applicants must show documents that confirm their connection to a Canadian ancestor. These documents may include birth certificates, baptism records, or other official records that help confirm the family relationship.
At the time of writing, the processing time for proof of citizenship applications is around 11 months.
Canadian Citizenship Does Not Create New Tax Obligations
Becoming a Canadian citizen does not automatically create tax responsibilities in Canada.
Unlike the United States, Canada does not tax its citizens based on citizenship. Instead, Canadian income taxes depend on residency.
This means that an American who becomes a dual citizen but continues living in the United States will not need to pay Canadian income taxes.
If the person does not move to Canada, buy property in Canada, or operate a business in the country, there is also no requirement to file a Canadian tax return.
However, if a dual citizen later decides to move to Canada and becomes a resident for tax purposes, Canadian tax rules will apply.
In these situations, the US–Canada tax treaty helps prevent double taxation. This agreement allows taxpayers who owe taxes in both countries to offset taxes paid in one country against taxes owed in the other.
Understanding Citizenship By Descent
Citizenship by descent applies to individuals who are born outside Canada but have Canadian parents or ancestors.
In most situations, children born inside Canada automatically receive Canadian citizenship through birthright citizenship. This rule applies to births on Canadian land, in Canadian waters, and even in Canadian airspace.
There are a few limited exceptions, such as children born to foreign diplomats.
The latest changes to citizenship rules were introduced through Bill C-3, officially titled “An Act to Amend the Citizenship Act.” The law came into force on December 15, 2025.
Before this law was passed, Canada had a rule known as the first-generation limit (FGL).
This rule meant that citizenship by descent could only pass to one generation of children born outside Canada. In other words, Canadian citizens living abroad could pass citizenship to their children, but those children could not automatically pass it to their own children born outside Canada.
The first-generation limit was added to Canada’s Citizenship Act in 2009.
In December 2023, the Ontario Superior Court of Justice ruled that this rule was unconstitutional.
Following that decision, the Canadian government introduced Bill C-3. The new legislation removed the first-generation limit for people born before December 15, 2025.
The government adjusted the rule for children born after that date rather than removing it completely.
An exception to the first-generation limit now applies if the Canadian parent meets a substantial connection to Canada requirement.
This test means that the parent must have lived in Canada for at least three years before the birth or adoption of the child.
These changes have opened the door for millions of people with Canadian ancestry to claim Canadian citizenship and potentially obtain Canadian passports.
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