Did you know that millions of Americans already qualify for Canadian citizenship — and most don't even realize it? A sweeping change to Canada's citizenship law now allows people with Canadian ancestry to claim citizenship by descent, regardless of how many generations have passed.
Here's what you need to know about eligibility, the application process, tax implications, and how to get started.
Are You Already a Canadian Citizen?
What Changed Under Canada's New Citizenship Law?
On December 15, 2025, Bill C-3 — officially titled "An Act to Amend the Citizenship Act" — came into effect. This legislation eliminated the first-generation limit (FGL), a rule that previously restricted citizenship by descent to only one generation born outside Canada.
The FGL had been part of the Citizenship Act since 2009. However, in December 2023, the Ontario Superior Court of Justice struck it down as unconstitutional. Parliament responded by passing Bill C-3, which opens citizenship by descent to anyone born before December 15, 2025, who can trace their lineage to a Canadian ancestor.
For children born on or after that date, a modified rule applies. The Canadian parent must demonstrate a substantial connection to Canada, defined as having lived in the country for at least three years before the child's birth or adoption.
Who Qualifies for Canadian Citizenship by Descent?
Eligibility is broader than most people expect. You may qualify if you meet these conditions:
- You were born outside Canada before December 15, 2025.
- You can trace your family tree to at least one Canadian ancestor.
- Your connection runs through birth or adoption — both count equally.
It does not matter whether your parents or grandparents ever lived in Canada, held Canadian passports, or even knew they had Canadian heritage. As long as the ancestral link exists and you can document it, you qualify.
How Many Americans Are Eligible?
The numbers are staggering. An estimated three million Americans in New England alone qualify for Canadian citizenship, largely due to mass migration from Canada between 1870 and 1930. Millions more across the rest of the United States also meet the requirements.
How to Apply for Proof of Canadian Citizenship
Canadian citizenship by descent is automatic under the law — but you still need to prove it. The process works in two stages.
Stage 1: Apply for Proof of Citizenship
Submit an application to Immigration, Refugees and Citizenship Canada (IRCC) with documented evidence of your Canadian ancestry. Accepted documents typically include:
- Birth certificates (yours and your ancestors')
- Baptismal records
- Marriage certificates linking generations
- Immigration or naturalization records
As of early 2026, IRCC's processing time for proof of citizenship applications sits at approximately 11 months.
Stage 2: Apply for a Canadian Passport
Once you receive your certificate of Canadian citizenship, you can submit a Canadian passport application. This gives you the full travel privileges of a Canadian citizen.
Benefits of Dual Citizenship for Americans
Holding both American and Canadian citizenship unlocks several practical advantages:
- Right of entry and settlement — Enter Canada freely and live there permanently without a visa or work permit.
- Expanded travel access — The Canadian passport consistently ranks among the world's most powerful, opening visa-free or visa-on-arrival access to destinations that the US passport does not cover.
- Career and education options — Work or study anywhere in Canada with no restrictions.
- Safety net — Maintain a second home country with access to Canada's public healthcare and social services if you relocate.
Does Canadian Citizenship Affect US Taxes?
Canadian citizenship alone does not trigger any Canadian tax obligations. Unlike the United States, which taxes its citizens on worldwide income regardless of where they live, Canada taxes individuals based on residency, not citizenship.
If you obtain Canadian citizenship but continue living in the United States, you will owe zero Canadian income tax and will not need to file a Canadian tax return.
What If You Move to Canada?
If you decide to relocate and become a Canadian tax resident, you will have tax obligations in both countries. However, the US-Canada Tax Treaty provides relief from double taxation. The treaty allows taxpayers to offset certain taxes owed in one country against taxes paid to the other.
Key Facts at a Glance
| Detail | Information |
|---|---|
| Law | Bill C-3, "An Act to Amend the Citizenship Act" |
| Effective date | December 15, 2025 |
| Eligible applicants | Persons born outside Canada before Dec 15, 2025, with Canadian ancestry |
| Generational limit | None (for those born before the effective date) |
| Processing time | ~11 months (as of early 2026) |
| Tax impact | None unless you become a Canadian resident |
| Dual citizenship | Permitted by both Canada and the US |
| Estimated eligible (New England) | ~3 million Americans |
Birthright vs. Descent: What's the Difference?
Citizenship by descent applies only to people born outside Canada. Anyone born on Canadian soil automatically holds Canadian citizenship through birthright, with narrow exceptions such as children of foreign diplomats.
Bill C-3 specifically addresses the descent pathway, expanding access for those born abroad to parents, grandparents, or more distant ancestors who were Canadian.
Frequently Asked Questions
Can I get Canadian citizenship if my great-grandparent was Canadian?
Yes. Under Bill C-3, there is no generational limit for individuals born before December 15, 2025. As long as you can document the lineage, you qualify.
Do I need to renounce my US citizenship?
No. Both the United States and Canada permit dual citizenship. You can hold passports from both countries simultaneously.
Does my child qualify too?
If your child was born before December 15, 2025, the same rules apply. For children born on or after that date, the Canadian parent must have lived in Canada for at least three years prior to the birth or adoption.
How long does the application take?
Current IRCC processing times are approximately 11 months for proof of citizenship applications.
Will I be taxed by Canada?
Not unless you move to Canada and become a tax resident. Citizenship alone carries no tax obligations.
Ready to Prepare for Your Citizenship Test?
Whether you qualify by descent or you're already on the path to citizenship, our practice tests will help you ace the exam.
Start Free Practice TestRead more about Bill C-3 in our earlier coverage: Bill C-3 Explained: Citizenship by Descent Changes in 2026.