IMM 5409B — Statutory Declaration — Severance of Common-Law Union
Sworn declaration ending a previously-declared common-law union. Required for applicants who have separated from a common-law partner and need to update their marital status with IRCC.
What this form is for
Sworn declaration ending a previously-declared common-law union. Required for applicants who have separated from a common-law partner and need to update their marital status with IRCC.
Who completes it
Applicants who previously declared a common-law union that has since ended
Programs that use IMM 5409B
Sections covered in the form
- Previous partner's identity
- Date the union began + date it ended
- Confirmation of severance and current non-cohabitation
- Signature + commissioner / notary attestation
Common mistakes on IMM 5409B
⚠ Most-watched-for errors
The errors below are the ones we most commonly see when reviewing files from prior representatives or self-prepared applications. Each one risks procedural fairness letters, refusals, or misrepresentation findings.
- Failing to update marital status across all parallel IRCC applications
- Inconsistent end-date vs. other declarations (last shared address, last joint bill)
- Missing notary / commissioner attestation
Halani's notes on IMM 5409B
If you have any in-process IRCC application (Express Entry profile, sponsorship, etc.), update marital status promptly — typically within 30 days of the change.
Where to download IMM 5409B
Always download the current version directly from canada.ca — older versions get rejected. The IRCC forms catalogue is at canada.ca/immigration-refugees-citizenship/services/application/application-forms-guides.
Filling IMM 5409B? Get it right the first time.
Halani Immigration Services Inc. (RCIC-IRB R711322) prepares every IRCC form as part of a complete application package. Free 15-min review of your form package.
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