Canadian Citizenship by Descent Grandparent Rule (2026 Update)

The "grandparent rule" for Canadian citizenship has changed dramatically. Here is what the old rules were, what changed with Bill C-3, and how you can now claim citizenship through your Canadian grandparents.

The Old Rule (2009-2025)

From April 2009 to December 2025, Canada enforced a first-generation limit on citizenship by descent. This was introduced by Bill C-37 and worked like this:

• If your parent was born in Canada: you were Canadian by descent. No problem.
• If your grandparent was born in Canada but your parent was born outside Canada: you were NOT Canadian. The chain was cut at the first generation born abroad.

This meant millions of Americans with Canadian grandparents were locked out. Your parent might have been Canadian (as first generation born abroad), but you could not inherit that citizenship.

The New Rule (Bill C-3, December 2025)

Bill C-3 removed the first-generation limit entirely for anyone born before December 15, 2025. The new rule is simple:

If you can trace an unbroken line of descent to a Canadian ancestor, and you were born before December 15, 2025, you are a Canadian citizen. There is no generational limit.

This means:

• Grandchildren of Canadians: eligible
• Great-grandchildren of Canadians: eligible
• Great-great-grandchildren of Canadians: eligible
• And so on, with no cutoff

How to Claim Citizenship Through Grandparents

The process requires documenting an unbroken chain of parent-child relationships from your Canadian grandparent to you.

Documents Needed

For a typical grandparent claim, you need:

1. Grandparent's Canadian birth certificate (order from the province where they were born)
2. Your parent's birth certificate (showing grandparent as a parent)
3. Your birth certificate (showing your parent as a parent)
4. Marriage certificates for any name changes in the chain

The Application

Complete the CIT 0001 form from IRCC, attach all supporting documents, pay the $75 CAD fee, and mail it to IRCC. Processing takes approximately 11 months.

Important Details

Only One Grandparent Needs to Be Canadian

You do not need both grandparents to be Canadian. If one grandparent was born in Canada and the other was born in the US, you still qualify through the Canadian grandparent.

Maternal and Paternal Lines Both Work

It does not matter whether your Canadian grandparent is on your mother's or father's side. Both lines of descent are equally valid.

Your Grandparent Does Not Need to Be Alive

You can claim citizenship through a deceased grandparent. You need their birth certificate and other documents, not their physical presence.

Naturalization Counts Too

Your grandparent does not have to have been born in Canada. If they immigrated to Canada and became a naturalized citizen before your parent was born, that also creates a valid chain.

What About Your Children?

If your children were born before December 15, 2025, they also qualify with no generational limit. If they were born on or after that date, you (as the Canadian parent) must have spent at least 1,095 days physically present in Canada before their birth for them to inherit citizenship.

Next Steps

1. Use the free eligibility check at MaplePass to confirm your qualification
2. Start ordering birth certificates (especially Canadian ones, which take 4-8 weeks)
3. Build your application with MaplePass's AI-guided CIT 0001 form builder
4. Submit and wait for your citizenship certificate