Proof of Canadian Citizenship by Descent: What IRCC Needs
A law that took effect at the end of 2025 means more people than ever may already be Canadian citizens through a parent or grandparent — and the next step for many of them is to prove it. If you think citizenship by descent might apply to you, the hard part is rarely eligibility. It is documentation. Strong proof of Canadian citizenship rests on official records, and a claim built on anything less can stall, even after it has been approved. Here is how the process actually works and what you need to get right.
What Bill C-3 Changed About Citizenship by Descent
For years, a “first-generation limit” stopped Canadian citizens born outside Canada from automatically passing citizenship to a child who was also born abroad. Bill C-3, An Act to amend the Citizenship Act, changed that. It received royal assent on November 20, 2025 and, according to Immigration, Refugees and Citizenship Canada (IRCC), came into force on December 15, 2025.
The new framework extends citizenship by descent beyond the first generation. People born before December 15, 2025 in the second or a later generation abroad are now recognized as citizens retroactively. For children born on or after that date, the generational chain can continue, but the Canadian parent must show a “substantial connection” to Canada — at least 1,095 days (three years) of physical presence in the country before the child’s birth or adoption. In short, the door is open to many more families, but being a citizen and having documents to prove it are two different things.
Why Some Approved Claims Are Being Re-Examined
This matters because of a recent, widely reported development. In mid-June 2026, IRCC is reported to have contacted a group of people who had already received their citizenship certificates to say their approved claims were being placed “under review,” and to ask for the certificates back while the files were re-examined. Importantly, this is described as a review of the proof on file — not a revocation of citizenship itself.
The reported reasons come down to documentation. Two issues stand out: supporting documents that did not come from an official source authority, and missing written explanations where a required record could not be obtained. That is the practical lesson for anyone applying now. A claim is only as strong as the records behind it, and IRCC expects those records to come from the bodies that actually issue them.
What Counts as Strong Proof of Canadian Citizenship
When you apply for a citizenship certificate — the document that serves as your proof of Canadian citizenship — you are essentially building a paper chain from your Canadian ancestor down to you. Each link needs to be backed by an official record rather than a copy, a summary, or a family keepsake. In general, that means:
- Records from the issuing authority. Birth, marriage, and similar records should come from the relevant vital-statistics office, civil registry, or provincial or national archive — not a photocopy or a privately produced version.
- Documents connecting each generation. You need to show the relationship at every step: your Canadian parent or grandparent to the next generation, and so on down to you.
- Proof for the substantial-connection test, where it applies. If your child was born on or after December 15, 2025, evidence of your 1,095 days of physical presence in Canada becomes part of the file.
- A written explanation when a record genuinely does not exist. If an official document is unavailable, a “letter of no record” from the authority, together with a clear written account of the steps you took to find it, helps show you made a real effort rather than simply leaving a gap.
Action Steps to Build a Solid Claim
Whether you are applying for the first time or want to be confident your file would hold up, work through these steps:
- Map your family line. Identify the Canadian citizen you descend from and write out each generation between that person and you. This tells you exactly which records you need.
- Order official source documents early. Request certified records directly from the issuing authority for each link in the chain. These can take time to arrive, so start now rather than close to filing.
- Fill gaps the right way. If a record cannot be located, obtain a letter of no record and prepare a short, factual explanation of your search. Do not leave a missing document unexplained.
- Keep your own copies organized. Hold every certificate, record, and explanation together so you can respond quickly if IRCC asks for more — including if you ever receive a review request.
- If you receive a review notice, respond, do not ignore it. A request to re-examine a file is an opportunity to strengthen it with better source documents. Treat the deadline seriously and answer with the official records IRCC has asked for.
A few details are still settling as IRCC applies the new rules in practice, and processing for proof of citizenship has been slow — measured in months. If any requirement is unclear for your family’s situation, confirm the current rules directly through IRCC before you file rather than relying on assumptions.
The Bottom Line
Bill C-3 has made citizenship by descent a reality for many more people, but recognition on paper still depends on the quality of your documents. The applicants who fare best are the ones who build their claim on official source records, explain any gaps honestly, and keep everything organized from the start. That is what turns “I think I’m a citizen” into proof that stands up.
If you are unsure whether you qualify for citizenship by descent, or you want help assembling a claim that will hold up, contact hello@bisonimmigration.com today for a personalized assessment.

