Overview
Proving a common-law relationship for Canadian sponsorship
If you are sponsoring a partner as common-law—or being sponsored in that category—you must show that you lived together continuously for at least 12 months and provide evidence of the shared home and relationship. This guide explains the definition, the proof and the complications that commonly cause questions.
The rule in plain language
What the official wording means
“cohabiting with the person in a conjugal relationship, having so cohabited for a period of at least one year”
What that means
The couple must ordinarily have shared a home and lived in a marriage-like partnership for at least 12 continuous months. Dating for a year, visiting one another or alternating between separate homes is not the same as cohabiting.
Why the wording matters
Short, temporary absences can be consistent with continued cohabitation. The regulations also contain a specific rule for a person who cannot cohabit because of persecution or penal control. That exception should not be read as a general way to count a long-distance relationship.
Terms used on this page
Legal language without the legalese
Cohabitation
Living together as a couple in one shared home. Visits and alternating between two independent homes are not ordinarily the same thing.
See how the 12 months are countedLegally separated
Still legally married, but no longer living with the spouse because the relationship has ended.
Read about previous marriagesStatutory declaration
A formal written statement declared to be true before a person authorized to administer it. IMM 5409 is IRCC’s common-law declaration form.
See when IMM 5409 is usedConjugal partner
A different and much narrower sponsorship category for an applicant outside Canada. It is not another name for a common-law partner.
Compare the conjugal-partner categoryWhat counts as 12 continuous months of living together?
The 12 months start when the couple begins living together in one shared home as partners—not when they meet, begin dating or first visit one another.Source [1]Source [2]
For the ordinary federal immigration definition, the couple must complete at least 12 consecutive months of cohabitation.
A short, temporary absence for work, travel or a family obligation may be consistent with continued cohabitation when the shared home and relationship continued. A lengthy separation or two independently maintained homes can lead to a different conclusion, so record the dates and circumstances accurately.
What documents can prove that we lived together?
No single document proves cohabitation. IRCC looks for a consistent collection of records covering the shared home and the relevant 12-month period.Source [1]Source [3]
Evidence can include leases or mortgage records, government identification, mail, utility bills, insurance, bank or credit records, tax information, household expenses and travel records.
The names, addresses and dates should agree across the application. If an account or lease is in only one partner’s name, explain the practical reason and use other records showing that both people lived at the same home. Detailed letters from people who know the couple can support the file, but they should not be the only evidence.
What if one of us is still legally married to someone else?
It can still be possible to become common-law with a new partner after the earlier marriage has broken down and the spouses have separated.Source [1]Source [4]
The evidence should show when the earlier relationship ended, when separation occurred and when the new couple began living together as partners.
Answer every question about previous spouses and partners accurately. If the checklist asks for divorce, separation, death or other civil-status documents, provide them or explain why a particular record is unavailable. Do not describe someone as divorced when they are only separated.
Do we need to complete form IMM 5409?
Complete IMM 5409 when the current instructions for the immigration program require it. The form supports the relationship evidence; it does not automatically replace it.Source [3]
IMM 5409 is IRCC’s Statutory Declaration of Common-Law Union. The partners state how long they have cohabited and answer questions about shared housing, property, accounts, insurance and other evidence. They must sign it by hand as instructed before a person authorized to administer the declaration.
The dates and answers on the declaration should match the rest of the application. Always follow the checklist for the particular program rather than assuming the form is required in every common-law application.

When to get legal advice
Does your common-law evidence leave an important question unanswered?
An immigration lawyer can review a focused concern before it becomes a problem in the application. Advice is most useful when the dates, documents or earlier immigration history do not tell one consistent story.
There is a gap in the 12 months of living together
Addresses or relationship dates conflict across documents
One partner remains legally married to someone else
A partner was not declared in an earlier immigration application
A focused question may only need 15 minutes.
Use the time to identify the issue, any immediate risk and the next sensible step. If the matter needs more work, the lawyer can explain the proposed scope before you decide whether to proceed.
Read what an immigration lawyer can do and how an immigration law firm may handle further work.
Frequently asked questions
Questions about proving a common-law relationship for canadian sponsorship
Can separate dating periods add up to 12 months?
No. The ordinary rule requires 12 continuous months of living together as partners; separate periods of dating or visiting do not accumulate into cohabitation.
Must common-law partners have a joint bank account?
No. A joint account can help, but no single financial arrangement is mandatory. Use a range of genuine records showing the shared home and relationship.
Can a temporary period apart break common-law status?
Not necessarily. A short, temporary absence can be consistent with continued cohabitation when the couple maintained their shared home and relationship. Longer or indefinite separations require closer examination.
When do we become common-law: when we move in or after one year?
For the ordinary federal immigration definition, the couple meets the one-year requirement after completing 12 continuous months of cohabitation. Some forms separately ask when cohabitation began, so do not assume both questions require the same date.
Is a common-law partner the same as a conjugal partner?
No. Common-law status ordinarily depends on at least 12 continuous months of cohabitation. Conjugal-partner sponsorship is a separate, narrow category for an applicant outside Canada whose circumstances involve significant barriers.
Do photographs prove that we are common-law?
Photographs can show the history of the relationship, but they do not by themselves prove 12 months of cohabitation. Address, housing, financial and household records usually carry that part of the evidence.






