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Who is a Canadian citizen by descent?

A person born outside Canada to a Canadian parent is a citizen under s.3(1)(b) of the Citizenship Act unless s.3(3) applies. Since December 15, 2025, s.3(3) reaches only a birth on or after that date where the Canadian parent was a citizen by descent or adoption, was born abroad, and had fewer than 1,095 days in Canada before the birth.

Answer a few short questions about one person. The tool shows which provisions of the Citizenship Act the answers touch and what those provisions say. It does not say whether anyone is a citizen: IRCC decides that, on an application.

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Question 1

Where was the person born?

The person whose citizenship the question is about: yourself, a child, or someone else in the family.

The family line these answers describe

Three generations, and the provision of the Citizenship Act at each link. The boxes fill in as you answer. Nothing here is a finding about a person: IRCC decides, on an application.

  1. Grandparent

    Not answered yet.

  2. Not answered yet.

  3. Canadian parent

    Not answered yet.

  4. Not answered yet.

  5. The person

    Not answered yet.

The provisions these answers touch

Answer the questions above to see the provisions.

Bill C-3

What changed on December 15, 2025?

Bill C-3, An Act to amend the Citizenship Act (2025), changed the first-generation limit on citizenship by descent. IRCC states that it took effect on December 15, 2025.

Before December 15, 2025

The first-generation limit

  • From April 17, 2009, citizenship by descent stopped at the first generation born outside Canada.
  • In practice, a child born abroad to a Canadian who was also born abroad to a Canadian did not get citizenship by descent.
  • December 2023: the Ontario Superior Court of Justice ruled the limit unconstitutional for many people.
  • March 2025: IRCC brought in an interim measure for the people affected.

From December 15, 2025

The 1,095-day test

  • Born abroad before December 15, 2025 to a Canadian parent: s.3(3) no longer reaches the birth. IRCC says that in most cases the person is a citizen automatically, and s.3(7)(h) dates it from birth.
  • Born abroad on or after December 15, 2025 to a parent who is a citizen by descent or by an adoption grant and was born abroad: s.3(1)(b) applies only where a citizen parent was physically present in Canada for at least 1,095 days before the birth.
  • Adopted on or after December 15, 2025: s.5.1(4) sets the same 1,095-day test, counted before the adoption.
  • An application made under the interim measure: IRCC says it processes it under the new rules, and no new application is needed.
  • A person the change made a citizen who does not want citizenship can apply to renounce it.

Sources: Citizenship Act s.3 and s.5.1 on Justice Laws (current to October 19, 2026, last amended December 15, 2025), and IRCC’s pages on the 2025 change (dated December 9 and December 24, 2025). Read on November 11, 2026. IRCC: change to citizenship rules in 2025.

The application

How do you apply for proof of citizenship?

Proof is a citizenship certificate. It confirms a citizenship a person already holds. It does not grant one, and IRCC decides on the application.

Form
CIT 0001, Application for a citizenship certificate (adults and minors), with the document checklist CIT 0014.
For the 1,095 days
The package includes CIT 0555, How to calculate physical presence in Canada for a Canadian parent.
IRCC fee
$75
How to apply
Online or on paper. IRCC lists the cases that go on paper, such as a person born in Canada on or before February 14, 1977, four or more children applying together, or a replacement certificate. An online application has 60 days from its start to be submitted.
Processing time
About 34 months on IRCC’s processing times tool (IRCC’s figure of October 9, 2026).
Faster processing
IRCC says it may process an application faster in some cases, and its page explains when and how to ask.
Adopted persons
A person adopted abroad by a Canadian does not use this form. The route is an application for a grant under s.5.1.

What documents does the certificate application ask for?

  • For each generation: proof of parentage, and proof of the Canadian parent’s citizenship.
  • IRCC’s examples: a provincial or territorial birth certificate, a foreign birth certificate, a citizenship certificate, a Certificate of Registration of Birth Abroad.
  • Documents come from the authority that issued them. IRCC says third-party records alone cannot support an application.
  • With no birth record, IRCC may accept other documents, such as a hospital birth record, a baptismal record or census records.
  • Where an official document cannot be had, IRCC asks for a written explanation and proof of the attempt to get it.
  • A document in another language needs an English or French translation and an affidavit from the translator.
  • On paper, IRCC asks for clear colour copies.

The checklist in the package (CIT 0014) is the list IRCC works from. This summary follows IRCC’s page dated July 17, 2026 and the package page dated August 25, 2026.

The law behind the tool

Three sections of the Citizenship Act

Each page holds the full text in English and French.

Frequently asked questions

Who is a Canadian citizen by descent?

Under s.3(1)(b) of the Citizenship Act, a person born outside Canada after February 14, 1977 is a citizen if one parent, other than an adoptive parent, was a citizen at the birth. Section 3(3) limits that rule only for a birth on or after December 15, 2025, where the Canadian parent was a citizen by descent or by an adoption grant, was born abroad, and had fewer than 1,095 days in Canada before the birth. Read section 3 of the Citizenship Act

What is the 1,095-day rule for citizenship by descent?

It is the condition in s.3(3)(a)(ii). For a child born abroad on or after December 15, 2025 to a Canadian parent who was a citizen by descent or by an adoption grant and was born abroad, s.3(1)(b) does not apply unless a citizen parent was physically present in Canada for at least 1,095 days before the birth. The days need not be consecutive, and no five-year window applies. Citizenship by descent and the 2025 amendment

What did Bill C-3 change for a person born abroad to a Canadian parent?

Bill C-3, An Act to amend the Citizenship Act (2025), changed the first-generation limit on citizenship by descent, and IRCC states it took effect on December 15, 2025. IRCC says a person born abroad before that date to a Canadian parent is, in most cases, a citizen automatically. For a birth abroad on or after that date to a parent who is a citizen by descent and was born abroad, s.3(3) asks for 1,095 days in Canada before the birth. Citizenship by descent and Bill C-3

What about someone born abroad before December 15, 2025?

Section 3(3) now reaches only births on or after December 15, 2025, so an earlier birth abroad to a citizen parent falls under s.3(1)(b), and s.3(7)(h) dates that citizenship from birth. IRCC’s page on the change says that in most such cases the person is a citizen automatically. Exceptions exist, such as s.3(2.5) for a person granted citizenship who later renounced it. A citizenship certificate is how IRCC confirms it. Read section 3 of the Citizenship Act

Can an adopted child get Canadian citizenship by descent?

Not through s.3(1)(b), which counts a parent other than one who adopted the person. An adopted person applies for a grant under s.5.1, which asks, among other conditions, whether the adoption was in the child’s best interests and created a genuine relationship of parent and child. For an adoption on or after December 15, 2025, s.5.1(4) adds the same 1,095-day test, counted before the adoption. Read section 5.1 of the Citizenship Act

What is the Crown service exception?

Section 3(5) switches off the s.3(3) limit when a parent, at the child’s birth, was employed outside Canada in or with the Canadian Armed Forces, the federal public administration or a provincial public service, and was not locally engaged. It also covers a grandparent who was employed that way when the parent was born or adopted. Section 5.1(5) does the same for adoptions under s.5.1(4). Read section 3 of the Citizenship Act

How do you get proof of Canadian citizenship?

Through an application to IRCC for a citizenship certificate, which is proof of a citizenship a person already holds, not a grant. The IRCC fee is $75. IRCC states that a person who thinks they became a citizen through the 2025 change must apply for a certificate to find out for sure. An adopted person applies for a grant under s.5.1 instead. How the proof of citizenship application works

Is the 1,095-day count the same as for a citizenship grant?

No. The adult grant under s.5(1)(c)(i) counts 1,095 days inside the five years before the application, with half-day credit for time before permanent residence under s.5(1.001). Section 3(3) counts the parent’s days of physical presence in Canada at any time before the child’s birth, with no window and no half-day rule. The physical presence calculator counts the grant version. Physical presence calculator

Provisions checked against the Citizenship Act on Justice Laws (current to 2026-10-19, last amended 2025-12-15) and IRCC’s pages: November 11, 2026