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№ 77 Family Law

Does Cheating Affect Spousal Support in British Columbia?

Learn whether an affair changes spousal support in British Columbia, what the Family Law Act and Divorce Act say about misconduct, and the narrow exceptions.

Family Law4 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 6, 2026
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Key takeaways
  • In British Columbia, fault is generally irrelevant to spousal support, and an affair on its own does not decide whether support is owed or how much.
  • Support is built on the spouses' condition, means, needs and the objectives set out in the Family Law Act, not on who behaved badly.
  • There is a narrow exception for conduct that arbitrarily or unreasonably causes or worsens the need for support, or affects ability to pay.

Finding out about an affair, or being accused of one, is painful. It is natural to ask whether the person who cheated should pay more, or whether the person who was hurt should get less or more.

In British Columbia, the law treats spousal support mainly as a financial question. This article explains how that works, where misconduct can matter in a narrow way, and what to focus on instead.

This article covers the law of British Columbia.

The short answer: fault is generally not considered

Under the Family Law Act, section 166, the court must not consider a spouse's misconduct, except conduct that arbitrarily or unreasonably causes, continues or worsens the need for support or affects the ability to pay. BC government guidance also says that who ended the relationship, or an affair, is not considered.

If you are married and seeking a divorce-related order, the Divorce Act is just as direct. The court cannot consider a spouse's misconduct in relation to the marriage when making a spousal support order.

So an affair does not by itself switch support on, switch it off, or raise or lower the amount.

What the court looks at instead

The Family Law Act sets four objectives for spousal support: recognizing the economic advantages or disadvantages arising from the relationship or its breakdown, sharing the financial consequences of child care beyond child support, relieving economic hardship from the breakdown, and promoting each spouse's economic self-sufficiency within a reasonable period of time.

The amount and duration, if any, are decided having regard to each spouse's condition, means, needs and other circumstances. These include how long the spouses lived together, the functions each performed during the relationship, and any agreement or order about support.

BC government guidance describes this as two steps: first whether the person is entitled, then how much and for how long.

The narrow exception for conduct that affects money

The exception in section 166 is not about moral blame. It is about conduct that arbitrarily or unreasonably causes, continues or worsens the need for support, or that affects the ability to pay.

Whether conduct meets that standard depends on the facts. Hurt feelings or a breach of trust, however serious, are different from a financial effect on need or ability to pay. If you think the exception might apply, a lawyer can look at your specific facts.

Family Law Act and Divorce Act compared

PointFamily Law ActDivorce Act
Who it coversMarried spouses and unmarried partners who qualify as spousesMarried or formerly married spouses seeking a divorce-related order
MisconductNot considered, except conduct that arbitrarily or unreasonably causes or worsens need or affects ability to payCourt cannot consider misconduct in relation to the marriage

Related points that come up with affairs

What to do next

Frequently asked questions

Can I get more spousal support because my spouse cheated?

Generally no. The court must not consider a spouse's misconduct, other than conduct that arbitrarily or unreasonably causes or worsens the need for support or affects ability to pay. Support is based on factors like condition, means and needs.

Can I lose my right to support if I had an affair?

An affair alone is not a reason for the court to refuse support, because fault is generally irrelevant. Entitlement turns on the objectives in the Family Law Act, such as economic disadvantage and hardship.

Does it matter who ended the relationship?

No. BC government guidance says who ended the relationship, or an affair, is not considered.

Does the rule differ if we are married and divorcing?

The wording differs, but the approach is similar. Under the Divorce Act, the court cannot consider misconduct in relation to the marriage when making a spousal support order.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. British Columbia laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a lawyer who practises in British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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