If you married after applying as a single applicant and already have your Confirmation of Permanent Residence (COPR):
- Inform IRCC about the marriage before you use the COPR to land. Not disclosing a material change in your status like marriage risks a misrepresentation finding, which can lead to bans on entering Canada.
- Understand that landing without adding your spouse doesn't stop you from landing — but it changes the process for them. If you land as a single applicant without including your new spouse on the file, sponsoring them afterward becomes a separate, slower process rather than something handled within your original application.
The safer path is disclosure first: notify IRCC of the marriage before travelling on the COPR, rather than assuming it can be sorted out after landing.