https://www.canada.ca/en/immigration-refugees-citizenship/services/application/application-forms-guides/guide-5525-basic-guide-sponsor-your-spouse-partner-child.html
Dependent child
If you’re sponsoring a spouse or partner, any dependent children should be listed on their application forms. If you are sponsoring one or more
dependent child(ren) as the principal applicant(s), you must submit a complete set of application forms and documents for each child.
Note: Canadian citizens can’t be sponsored. If you have a child who was born after you became a Canadian citizen, or your child was born in Canada, they might be a Canadian citizen. For more information on dependants who may be Canadian citizens, see Step 5 below.
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Details in Step 5
Children born to Canadian citizens
- If you’re a Canadian citizen who is sponsoring a spouse or partner, and you have a child together, your child may be a Canadian citizen, even if they were not born in Canada.
- A Canadian citizen is not eligible to be sponsored.
- If you already have proof of Canadian citizenship for your child, provide a copy of this proof (citizenship certificate or copy of Canadian passport), to help us confirm that your child does not require immigrant processing.
- If your child was born in Canada, you can provide a copy of their Canadian long form birth certificate(s) instead.
- If you don’t have proof of Canadian citizenship for your child who was born outside Canada, you need to apply for a proof of citizenship to confirm whether your child is a Canadian citizen.
- If it is confirmed that your child is a Canadian citizen, you’ll be able to apply for your child’s Canadian passport.
- If your child is not a Canadian citizen, you’ll need to add them as a dependant on the sponsorship undertaking signed for your spouse or partner.
Important: If you’ve submitted an application for proof of citizenship for your child, and it hasn’t been finalized, you must provide details in a letter and include it as part of your application so that we can check the status.