Few questions in family law generate as much frustration as this one: "My ex has moved in with someone new — why am I still paying spousal support?" The short answer is that remarriage or repartnering does not automatically terminate or reduce spousal support. It may be grounds for a variation application, but the outcome depends on the type of entitlement, the recipient's actual financial circumstances, and whether a genuine material change has occurred.

The Material Change Test

To vary an existing support order, the applicant must prove a "material change in circumstances" under section 17 of the Divorce Act. In the context of remarriage, this means demonstrating that the recipient's financial circumstances have actually improved — not simply that they have a new partner. A new relationship that does not produce any financial benefit (no shared expenses, no income pooling) may not constitute a material change.

Courts look at the substance, not the label. Cohabitation with a new partner who shares housing costs may demonstrate financial improvement. A casual dating relationship with separate households generally will not.

Compensatory vs Needs-Based Entitlement

The type of entitlement underlying the original support order significantly affects the remarriage analysis:

What Courts Actually Consider

When a payor brings a variation application based on the recipient's remarriage or repartnering, courts typically examine:

What About the Payor's Remarriage?

The payor's own remarriage generally does not reduce their obligation to the former spouse. A new spouse's income is not factored into the payor's ability to pay — the support obligation runs between the original parties. Courts have consistently held that a payor cannot reduce their obligations to a former spouse by voluntarily taking on new financial commitments through remarriage.

However, new children from a subsequent relationship can affect the analysis indirectly. The SSAG recognize that new children create additional obligations, and Chapter 14 of the SSAG Final Version addresses the complex interaction between prior and subsequent family obligations. The general principle is that prior obligations take precedence, but courts have discretion to consider the payor's overall circumstances.

Practical Considerations

Before bringing a variation application based on remarriage, payors should consider the cost-benefit analysis. Variation applications involve legal costs, court time, and uncertainty. Unless there is clear evidence of a material financial improvement in the recipient's circumstances, the application may not succeed — and the payor bears the legal costs regardless of outcome.

For recipients, remarriage or repartnering does not automatically trigger a support review. However, if the original order includes a review clause (rather than requiring a formal variation), the threshold for reassessment is lower. Understanding whether your order includes review terms is important for planning.