The lineage documents for Canadian citizenship by descent

Write one row for each person from the Canadian anchor to the applicant. Record the legal name at birth, later names, date and place of birth, parents, citizenship basis, and the source that proves each fact.

This exposes the weak link early: an absent parent name, an inconsistent surname, an adoption, a naturalization after the next birth, or a record held by an unexpected jurisdiction.

• Civil birth records showing parentage for the applicant and every connecting generation.
• Canadian birth, citizenship, or naturalization proof for the anchor citizen.
• Marriage, divorce, court, or statutory name-change records bridging identity changes.
• Adoption or parentage records where the legal relationship is not shown by an ordinary birth certificate.
• Current applicant identity documents and photographs.
• Translations and translator evidence that meet the current IRCC rules.

IRCC asks for authentic, reliable and verifiable documents for every generation, issued by the original authority. For each Canadian parent, grandparent or earlier ancestor in your line, that means one or more of: a provincial or territorial birth certificate, a birth certificate from another country showing the parent-child link, or a Canadian citizenship or naturalization certificate.

Your own birth certificate must name your Canadian parent and come from the government office of the country where you were born. For a US birth, ask for the long form that names the parents.

• If a birth certificate is missing: IRCC accepts other records from the original authority, such as a hospital birth record, a record from the physician or midwife at the birth, a baptismal record made within a reasonable time after the birth, census records or a boat manifest.
• If no official record exists: explain in writing why, and include proof that you tried, such as emails or letters from the office saying the record isn't available.
• Third-party records: they can help, but IRCC says an application can't rest on them alone.
• Quebec: IRCC doesn't accept Quebec birth or marriage certificates issued before 1 January 1994. Order a new one from the Directeur de l'état civil du Québec.
• Translations: anything not in English or French needs a translation and the translator's affidavit, unless the translator is certified in Canada. You and your relatives can't do the translation.

• No apostille on any record, Canadian or foreign.
• No originals: on paper, send clear colour copies; online, colour scans.
• No notarised copies of certificates. A notary only comes in to swear a translator's or witness's affidavit.
• No translation of records already in English or French.
• No family tree printout, obituary or genealogy index as proof of a link. They help you find the civil record; they don't replace it.

1. Is it issued or certified by the authority IRCC recognizes?
2. Does it show the parent, date, or citizenship fact the chain depends on?
3. Does the name match, or is the difference documented?
4. Is the record complete and legible, including both sides and amendments?
5. If it is not in English or French, is the required source-and-translation package complete?

Follow the official issuing authority's search or no-record process and IRCC's current guidance for alternative evidence. The absence of a certificate does not authorize an applicant to substitute an unrelated genealogy source without explanation.

Build a documented search trail: jurisdictions checked, name variants, date ranges, responses, and any official no-record statement. Complex cases may need legal advice.

This is general information, not legal advice. Canadian citizenship law and IRCC forms can change; use the current official instructions for the application you file.