Many people assume that living together for a certain period automatically gives them the same legal rights as married couples. In Alberta, that assumption is only partly correct—and misunderstanding the difference can lead to serious legal surprises when a relationship ends.
The short answer is: common-law spouses in Alberta do not have exactly the same rights as married spouses, especially when it comes to property division. However, they may still have important rights relating to support, parenting, and financial claims depending on the circumstances.
In Alberta, common-law relationships are legally recognized as Adult Interdependent Partnerships (AIPs) under provincial law.
What Is an Adult Interdependent Partner in Alberta?
In Alberta, a common-law partner is generally referred to as an Adult Interdependent Partner.
A person may qualify as an Adult Interdependent Partner if:
- They have lived with another person in a relationship of interdependence for at least three years, or
- They have lived together for less time but have a child together and a relationship of some permanence, or
- They have entered into a formal Adult Interdependent Partner Agreement
Once recognized, Adult Interdependent Partners may have certain legal rights and obligations similar to married spouses—but not identical.
Do Common-Law Spouses Have the Same Property Rights as Married Couples?
This is where the biggest difference exists.
Married Couples
Married spouses in Alberta are governed by the Family Property Act, which generally provides for:
- Equal division of matrimonial property (including the family home and most assets acquired during marriage)
- Clear rules about what is and is not divisible property
Common-Law Couples
Adult Interdependent Partners do not have automatic rights to equal division of property.
Instead, property claims are usually based on equitable legal principles such as:
Unjust enrichment
Constructive trust
Contribution-based claims
This means a common-law partner must generally prove:
- They contributed financially or through unpaid labour, and
- The other partner was enriched as a result, and
It would be unfair for them not to receive compensation or an ownership interest
Practical Impact
Unlike married couples, common-law partners may find that:
- Property is not automatically split 50/50
- Ownership on title matters more
- Financial contributions must be proven
- Homemaking contributions may still be considered, but are not automatically valued equally
What About the Family Home?
The family home is often the most disputed asset when common-law relationships end.
Key issues include:
- Whose name is on title
- Who paid the mortgage or down payment
- Whether one partner contributed to renovations or maintenance
- Whether there was a shared intention to own the property together
Even if only one partner is on title, the other partner may still claim an interest if they can establish contribution and unfair enrichment.
However, unlike married couples, there is no automatic right to half the home simply because of the relationship.
Do Common-Law Partners Have Rights to Spousal Support?
Yes. Common-law partners in Alberta can be entitled to spousal support if they meet the definition of Adult Interdependent Partners.
Spousal support may be based on factors such as:
- Length of the relationship
- Financial dependency
- Difference in income and earning capacity
- Roles during the relationship (e.g., stay-at-home parenting)
- Economic hardship caused by separation
The same legal principles that apply to married spouses generally apply to Adult Interdependent Partners when determining support.
What About Child Support and Parenting Rights?
When children are involved, the rules are essentially the same for married and common-law parents.
Both parents have:
- The obligation to support their children financially
- The right to seek parenting time and decision-making responsibility
Child support is determined using the Federal Child Support Guidelines, based primarily on income and parenting arrangements—not marital status.
Can Common-Law Partners Make Claims After Separation?
Yes. Even after separation, common-law partners may bring claims for:
- Property division based on unjust enrichment
- Spousal support
- Child support
- Division of jointly acquired assets
However, these claims are often more fact-specific than in divorce cases and may require more detailed evidence of contributions.
Key Differences Between Married and Common-Law Couples in Alberta
| Issue | Married Couples | Common-Law (Adult Interdependent Partners) |
|---|---|---|
| Property division | Presumed equal division | Based on contribution and unjust enrichment |
| Family home | Included in matrimonial property | Must prove entitlement |
| Spousal support | Available under Divorce Act | Available under provincial law |
| Child support | Same rules apply | Same rules apply |
| Legal certainty | More structured rules | More case-by-case analysis |
Common Misunderstandings
“We lived together for years, so everything is automatically 50/50.”
Not true in Alberta. Property division is not automatic for common-law couples.
“If the house is in my name, my partner has no claim.”
Not necessarily. Contributions may still create a legal interest.
“Common-law partners have no rights at all.”
Incorrect. They may still have strong claims for support and property depending on the circumstances.
Why These Cases Can Be Complex
Common-law separation disputes often involve more uncertainty because:
- There is no automatic property division framework
- Financial contributions may be informal or undocumented
- Partners may disagree on intentions about ownership
- Contributions may include unpaid domestic labour
As a result, outcomes can vary significantly depending on the evidence.
Conclusion
Common-law relationships in Alberta are legally recognized, but they do not carry the same automatic property rights as marriage. While Adult Interdependent Partners may have strong claims for support and unjust enrichment, they must generally prove their entitlement rather than rely on statutory property division rules.
Understanding these differences is essential before or after separation. In many cases, early legal advice can help clarify rights, protect financial interests, and avoid costly disputes later on.