A major change to Canada’s citizenship rules is opening the door for millions of Americans who may already qualify as Canadian citizens through family ancestry. Immigration lawyers on both sides of the border say they are seeing a sharp rise in inquiries and applications since the updated law took effect on Dec. 15.
The new rules significantly expand citizenship by descent and could allow many people with Canadian grandparents, great-grandparents or even more distant ancestors to claim Canadian status.
What Changed?
Previously, Canadian citizenship by descent was generally limited to the first generation born outside Canada — meaning it could usually pass only from a Canadian parent to a child born abroad.
Under the new law:
- Many people born before Dec. 15, 2025 may qualify if they can prove direct descent from a Canadian ancestor.
- This could include a grandparent, great-grandparent or earlier generation.
- People born on or after Dec. 15 must also show their Canadian parent lived in Canada for at least 1,095 days.
For eligible applicants, the process is not about becoming Canadian through immigration — it is about obtaining official proof of citizenship that may already exist by law.
Surge in Applications
Law firms in the U.S. and Canada report being overwhelmed with requests.
Immigration professionals say many Americans are exploring dual citizenship for reasons such as:
- Easier mobility and travel
- Career opportunities in Canada
- Political concerns in the U.S.
- Long-term family security
- Access to another passport
How the Process Works
Eligible people typically need to submit a proof of citizenship application and provide documents showing family lineage, such as:
- Birth certificates
- Marriage certificates
- Death records
- Immigration or citizenship records
The government fee is relatively modest, but costs can rise if applicants need lawyers or genealogists to trace family history.

