Bill C-3 explained: who's newly eligible for Canadian citizenship in 2026

For most of the past sixteen years, Canada had a quiet, ungenerous rule: if your Canadian-citizen parent was born outside Canada, you couldn't inherit citizenship through them. Citizenship by descent stopped at the first generation born abroad.

That rule is gone.

Bill C-3 — formally An Act to amend the Citizenship Act — came into force on December 15, 2025. It deletes the first-generation limit. And critically, it does so retroactively, which means people who lost out under the old rule are now Canadian citizens by operation of law, going back to their date of birth.

The Canadian government estimates this affects somewhere in the low millions of people, most of them in the United States. If you have Canadian ancestry on at least one side, there's a real chance you're now a Canadian citizen and didn't realize it.

The short version of who's eligible

You almost certainly qualify if all of these are true:

• You were born outside Canada
• One of your parents was also born outside Canada
• One of that parent's parents — your grandparent — was born in Canada
• All of this happened before December 15, 2025

If your Canadian-born grandparent's birth in Canada is documentable (you can get a long-form provincial birth certificate), you have a clean path. The CIT 0001 application is the form that makes it official.

Why the old rule existed

The first-generation limit dates to 2009. It was a reaction to the "Lebanon evacuation" episode in 2006, when Canada repatriated thousands of dual citizens during the Israel-Hezbollah conflict — many of whom had never lived in Canada and were Canadian only by descent. Politicians of the time worried about "Canadians of convenience." Parliament responded by capping descent at one generation outside Canada.

The cap had immediate consequences. Children born to Canadian-citizen parents who themselves were born abroad — even to Canadian-born grandparents — were not citizens. They had no claim to a Canadian passport, no automatic right to live in Canada, no eligibility for federal benefits.

In December 2023, the Ontario Superior Court of Justice ruled in Bjorkquist et al. v. Attorney General of Canada that this cap violated section 6 (mobility rights) and section 15 (equality rights) of the Charter. The federal government chose not to appeal. After delays driven by the 2025 election cycle, Bill C-3 received Royal Assent in late 2025 and came into force on December 15.

Who specifically is now eligible

Bill C-3 has three distinct populations of newly-eligible people:

Population 1 — adults born to a Canadian-by-descent parent. This is the big one. If you were born outside Canada to a Canadian-citizen parent who was also born outside Canada (because your grandparent was the one born in Canada), the old law said you weren't Canadian. Bill C-3 says you are, and you always were.

Population 2 — descendants further back. If your great-grandparent was the Canadian-born ancestor, you may also qualify, but the application is more involved (requires a separate supporting sheet beyond the standard CIT 0001) and the documentary chain is longer. This is doable but trickier.

Population 3 — children born after December 15, 2025. For births on or after the cutoff, citizenship doesn't pass automatically past the first generation. To pass it on, the Canadian-citizen parent has to meet a "substantial connection" test — at least 1,095 days of physical presence in Canada before the child's birth. This is the policy compromise that lets Bill C-3 fix the past without opening unlimited inheritance going forward.

For the vast majority of newly-eligible people, the relevant population is Population 1.

What you need to claim it

Three documents establish your chain:

1. Your birth certificate, showing your parents' names
2. Your Canadian-citizen parent's birth certificate, showing their parents' names — including the Canadian-born grandparent
3. Your Canadian-born grandparent's long-form birth certificate, showing they were born in Canada

The third one is the legal anchor. It must be a long-form (not wallet-size) provincial birth certificate so all the relevant details are visible. Long-form Quebec certificates take 6-8 weeks to order; Ontario takes 2-4 weeks; most other provinces are similar.

You also need:

• Two passport-style photos
• The $75 CAD processing fee (paid online to IRCC)
• A signed CIT 0001 form

That's the entire submission.

Common worries

"My grandparent is dead — does that matter?" No. They just need to have been born in Canada. A death certificate is helpful but not strictly required if the birth certificate is in hand.

"My grandparent moved away from Canada as a child / never lived in Canada as an adult." Doesn't matter. Birth in Canada is the qualifying event.

"I've never lived in Canada myself." Doesn't matter. Bill C-3 is about descent, not residence.

"I have US citizenship — will Canada or the US strip it?" Neither. Both countries permit dual citizenship. You become Canadian without losing your US citizenship.

"I'm worried about US tax / FBAR implications." Becoming a Canadian citizen does not trigger US tax obligations. (You're already a US citizen with US tax obligations regardless.) Becoming Canadian doesn't change anything on the US side.

How to actually do it

Once you have the three birth certificates and the photos and the fee receipt:

1. Fill out CIT 0001 (Application for Citizenship Certificate)
2. Write a cover letter explaining the chain of descent under Bill C-3
3. Mail the package to the IRCC processing centre in Sydney, Nova Scotia
4. Wait 9-12 months for the Canadian citizenship certificate to arrive

That's the entire process. There's no interview, no test, no oath of citizenship — because you're already a citizen. The certificate is just proof.

If you want help with the form-filling and the cover letter, arryv is built for exactly this. If you want a lawyer to verify the chain, contact a Regulated Canadian Immigration Consultant (RCIC) or a Canadian immigration lawyer.

If you don't want help and you'd rather do it yourself, the form and instructions are public on the IRCC website. Either way: if you're eligible, claim it. The legal status is yours by right.