Does Living with Someone End Alimony in British Columbia? 2026 Guide to Cohabitation and Spousal Support

Living with a new partner does not automatically terminate spousal support in British Columbia. Under Family Law Act, s. 167, courts require proof of a "material change in circumstances" before reducing or ending support payments. The BC Court of Appeal in Morigeau v. Moorey, 2015 BCCA 160 confirmed that cohabitation alone is insufficient grounds for variation—courts must examine whether the recipient's financial need has genuinely decreased. Recipients of compensatory support (awarded for career sacrifices during marriage) may continue receiving payments indefinitely, even while living with a new partner earning $155,000 or more annually.

Key Facts: Spousal Support and Cohabitation in British Columbia

Does Cohabitation with a New Partner End Spousal Support in BC?

Cohabitation with a new partner does not automatically terminate spousal support obligations in British Columbia. Under Family Law Act, s. 167(2), the payor spouse must apply to court and prove that a material change in circumstances has occurred since the original order was made. The BC Court of Appeal has established that the recipient's new relationship alone is insufficient grounds for variation. Courts examine whether the recipient's actual financial need has decreased due to shared living expenses, the new partner's contributions to household costs, or improvements in the recipient's overall economic position. In Morigeau v. Moorey, 2015 BCCA 160, the court dismissed a variation application even though the wife's new partner earned approximately $155,000 annually—more than her ex-husband's $120,000 income—because the original support award was primarily compensatory in nature.

The legal framework distinguishes between needs-based and compensatory support. When support compensates a spouse for economic disadvantages suffered during the marriage (such as leaving the workforce to raise children), the recipient's new partner's income is largely irrelevant. The BC Court of Appeal has confirmed that recipients with compensatory entitlement may have "a long-term entitlement to a share of the payor's income regardless of whether she remarries." This principle protects spouses who sacrificed career advancement during lengthy marriages from losing their earned compensation simply because they form new relationships.

How Do BC Courts Define a "Material Change in Circumstances"?

BC courts apply the Supreme Court of Canada's test from L.M.P. v. L.S., 2011 SCC 64, which defines a material change as substantial, continuing, and of a nature that "if known at the time, would likely have resulted in a different order." The Family Law Act, s. 167(2) codifies this requirement by specifying that courts must be satisfied that a change in "condition, means, needs or other circumstances" has occurred before varying spousal support. The BC Court of Appeal in Morigeau v. Moorey added that the change must also be unforeseen at the time of the original order. If the recipient was already in a relationship when support was ordered, subsequent cohabitation with that same partner may not qualify as a material change because it was reasonably foreseeable.

Examples of changes that courts have accepted as material include: significant increases in the recipient's employment income, the new partner assuming responsibility for all housing costs, the recipient receiving an inheritance that eliminates financial need, or the recipient's complete economic integration into a new household where expenses are fully shared. However, courts consistently reject arguments based solely on the new partner's wealth without evidence of actual financial benefit to the recipient. The burden of proof rests entirely on the payor spouse seeking the variation.

What Is the Difference Between Needs-Based and Compensatory Support?

Compensatory spousal support compensates a spouse for economic losses incurred during the relationship—such as foregone career opportunities, reduced earning capacity, or contributions to the other spouse's education and career advancement. Under Divorce Act, s. 15.2(6) and Family Law Act, s. 161, courts consider factors including the length of time a spouse was out of the workforce, the economic advantages gained by the payor spouse, and the recipient's diminished ability to become self-sufficient. Recipients of compensatory support maintain entitlement regardless of new relationships because the award addresses historical economic harm, not present financial need. In relationships lasting 20 years or longer, compensatory support often qualifies as "indefinite" under the Spousal Support Advisory Guidelines, meaning no time limit is set at the time of the order.

Needs-based support addresses the recipient's ongoing financial requirements following separation. This type of support is more vulnerable to reduction when the recipient cohabits with a new partner because the rationale for support diminishes if the recipient's expenses decrease or the new partner contributes to living costs. Courts examine actual financial circumstances rather than theoretical benefits from cohabitation. In Zacharias v. Zacharias, 2015 BCCA 376, the BC Court of Appeal approved including some portion of the new spouse's income as the recipient's income before applying SSAG formulas. However, even needs-based support does not terminate automatically—the payor must still prove that cohabitation has materially reduced the recipient's financial need.

How Do Courts Evaluate the New Partner's Income?

BC courts assess whether the new partner's income actually reduces the recipient's financial need rather than simply comparing household incomes. In Morigeau v. Moorey, the husband argued that his ex-wife's combined household income with her new partner ($155,000) exceeded his own income ($120,000). The BC Court of Appeal rejected this argument, holding that household income comparisons are irrelevant when the original support award was compensatory. Courts have accepted evidence that recipients are expected to contribute to shared household expenses with new partners, recognizing that "in the modern world, the fact that a man with a high income marries a woman with a lower income does not necessarily mean that he expects to support her." The recipient's arrangement with the new partner regarding expense-sharing, mortgage contributions, and financial independence directly affects how courts evaluate the impact of cohabitation.

The Spousal Support Advisory Guidelines acknowledge that no specific formula exists for adjusting support upon repartnering. One approach courts may use is imputing a portion of the new partner's income to the recipient before applying SSAG calculations. In Remillard v. Remillard, 2014 MBCA 30 (cited with approval in BC), the Manitoba Court of Appeal confirmed that SSAG remains relevant even when the recipient has remarried—courts simply apply the formulas using adjusted income figures. However, determining how much of the new partner's income to attribute to the recipient involves case-by-case analysis of the actual financial arrangements between the cohabiting parties.

What Steps Must a Payor Take to Vary or Terminate Support?

To vary or terminate spousal support due to the recipient's cohabitation, the payor must file an application with the BC Supreme Court under Family Law Act, s. 167 or Divorce Act, s. 17, depending on which legislation governed the original order. The filing fee for a Notice of Family Claim is CAD $210, plus a $10 federal registration fee, with additional costs of $80 for the requisition and $40 for the Certificate of Divorce—totaling approximately $330 as of April 2026. The payor must serve the application on the recipient and file an affidavit demonstrating the material change in circumstances. Financial disclosure from the recipient—including information about the new partner's contributions to household expenses—is typically required and can be compelled through court order if not voluntarily provided.

The application must be brought under the same legislation that created the original support order. The Family Law Act cannot be used to vary a support order made under the Divorce Act, and vice versa. If the original order included a review clause triggered by specific events (such as cohabitation), the payor may rely on that clause rather than proving a material change. Review orders are generally easier to invoke than variation orders because they anticipate future reassessment of support. The payor bears the evidentiary burden of proving that cohabitation has materially affected the recipient's financial circumstances. Courts will examine bank statements, lease agreements, mortgage documents, and other evidence showing the actual financial relationship between the recipient and the new partner.

How Long Does Spousal Support Last in BC?

The Spousal Support Advisory Guidelines provide duration ranges based on relationship length and the presence of dependent children. For relationships without children, the "without child support formula" calculates duration as 0.5 to 1 year of support for each year of marriage. Support becomes "indefinite" (no set end date) when the relationship lasted 20 years or longer, or when the "Rule of 65" applies—the recipient's age at separation plus the years of cohabitation equals 65 or more. For relationships with children, duration extends to the longer of: the length of the relationship, or the time until the youngest child finishes high school (upper end). Indefinite support does not mean permanent support—it simply means no time limit is established at the time of the order, leaving support open to variation or review as circumstances change.

Even indefinite support orders remain subject to variation under Family Law Act, s. 167. Courts have varied or terminated indefinite support based on retirement, significant income changes, the recipient achieving self-sufficiency, or repartnering that materially reduces financial need. However, the Supreme Court of Canada in Leskun v. Leskun, 2006 SCC 25 confirmed that self-sufficiency is only one of four objectives under the Divorce Act—there is no absolute duty on a recipient to become self-supporting. Courts balance the goal of promoting independence against the reality that some recipients cannot achieve full self-sufficiency due to age, health, or extended absence from the workforce.

Can a Separation Agreement Address Future Cohabitation?

Separation agreements can include cohabitation clauses that specify how support will be affected if the recipient enters a new relationship. Such clauses may provide for automatic termination, reduction by a specified percentage, or mandatory review upon cohabitation. Courts generally enforce clear, unambiguous cohabitation clauses unless doing so would produce an unconscionable result. Under the Family Law Act, s. 164, parties can contract out of the default rules regarding spousal support, but courts retain discretion to override agreements that were negotiated unfairly or that have become grossly inadequate due to changed circumstances.

When drafting cohabitation clauses, precision is essential. Clauses should define what constitutes "cohabitation" (e.g., residing together for 90 consecutive days, sharing a primary residence, financial interdependence), specify the consequences (termination, reduction, or review), and address whether the clause applies to any new relationship or only marriage-like cohabitation. Ambiguous clauses may be interpreted against the drafting party. A cohabitation agreement under the BC Family Law Act is generally valid indefinitely and automatically transitions into a marriage agreement if the parties later marry, provided it was drafted correctly. If both parties agree to cancel the agreement, they can sign a formal written document, after which standard Family Law Act rules will apply to support.

What Happens to Support When the Payor Remarries or Repartners?

The payor's remarriage or repartnering generally does not reduce spousal support obligations—in fact, it may increase them. Under the Spousal Support Advisory Guidelines, the payor's repartnering may provide a financial benefit through shared household expenses, leaving more disposable income available for support payments. Courts have increased support in situations where the payor's new spouse contributes to housing costs or other expenses, effectively lowering the payor's cost of living. However, the new spouse's income is not directly included in support calculations—only the indirect benefit to the payor through expense-sharing is considered.

The payor cannot use obligations to a new family as justification for reducing support to a former spouse. Under the "first family first" principle, obligations arising from earlier relationships generally take priority over obligations to subsequent partners or children. However, the Spousal Support Advisory Guidelines address "second families" in section 14.8, acknowledging that subsequent children may reduce the payor's ability to pay and warrant modest adjustments. Courts balance the competing interests of first and second families, but significant reductions in support to accommodate new family obligations are rare unless the payor's overall financial circumstances have genuinely diminished.

What Is the Legal Test for "Living with a Boyfriend" or "Supportive Relationship"?

BC law does not use the term "supportive relationship" that appears in some other provinces' legislation. Instead, courts examine whether cohabitation constitutes a material change in circumstances that reduces the recipient's financial need. The assessment focuses on the actual economic impact of the living arrangement rather than the romantic nature of the relationship. Relevant factors include: whether the new partner contributes to rent, mortgage, or utilities; whether the recipient's monthly expenses have decreased; whether the parties share financial accounts or credit; whether the new partner provides support equivalent to spousal support; and the duration and stability of the new relationship.

Courts have found cohabitation insufficient for variation when the recipient maintains separate finances, contributes to household expenses proportionally, receives no financial benefit from the new partner's income, or when the new partner simply cannot be expected to assume responsibility for the recipient's pre-existing support needs. The burden of proving that "living with a boyfriend" has materially reduced financial need falls entirely on the payor spouse seeking the variation. Circumstantial evidence of cohabitation—such as the new partner's presence at the recipient's residence—does not establish financial integration. The payor must present concrete evidence of changed financial circumstances to succeed on a variation application.

How Do the Spousal Support Advisory Guidelines Apply to Repartnering?

The Spousal Support Advisory Guidelines (SSAG), published by the federal Department of Justice in 2008, provide ranges for both amount and duration of spousal support. However, the SSAG explicitly acknowledge that "it is unfortunate that the SSAGs do not contain any formula to reflect the remarriage or re-partnering of the recipient spouse." Courts must therefore apply general principles rather than formulaic adjustments when addressing cohabitation. The SSAG remain relevant for determining baseline support amounts, which courts then adjust based on the specific circumstances of the recipient's new living arrangement. In Remillard v. Remillard, 2014 MBCA 30, the Court of Appeal confirmed that trial judges err when concluding the SSAG are irrelevant simply because the recipient has remarried.

One approach approved by BC courts involves attributing a portion of the new partner's income to the recipient before applying SSAG formulas. In Zacharias v. Zacharias, 2015 BCCA 376, the BC Court of Appeal noted that including the new husband's entire income resulted in support at the mid-range of SSAG calculations. However, courts have not established a consistent methodology for determining what portion of the new partner's income should be attributed. Factors influencing this determination include: the degree of financial integration between the recipient and new partner, whether the new partner has assumed responsibility for expenses previously covered by support, the new partner's own obligations to former spouses or children, and the length and stability of the new relationship.