Infidelity Clauses in Prenups in British Columbia: 2026 Complete Legal Guide

Infidelity clauses in British Columbia prenuptial agreements are generally unenforceable because they conflict with Canada's no-fault divorce system and public policy principles. Under the BC Family Law Act, s. 93, courts may set aside agreement provisions that are "significantly unfair" or contrary to public policy, and clauses imposing financial penalties for adultery typically fall into both categories. The Divorce Act, R.S.C. 1985, c. 3, s. 15.2(5) explicitly prohibits courts from considering marital misconduct when determining spousal support, which means infidelity clauses attempting to modify support obligations directly contradict federal law.

Key Facts: Infidelity Clauses in BC Prenups

What Is an Infidelity Clause in a British Columbia Prenup?

An infidelity clause in a British Columbia prenuptial agreement is a contractual provision that attempts to impose financial consequences on a spouse who commits adultery during the marriage. BC courts consistently decline to enforce these punitive provisions because Canada operates under a no-fault divorce system where marital misconduct does not affect property division or spousal support calculations. Under the Divorce Act, R.S.C. 1985, c. 3, s. 8, adultery is recognized as grounds for immediate divorce, but the same statute at section 15.2(5) mandates that courts "shall not take into consideration any misconduct of a spouse in relation to the marriage" when determining support. This creates a fundamental conflict between infidelity clauses and Canadian law.

Typical infidelity clauses attempt to accomplish several objectives that BC courts find problematic. Some clauses specify that an unfaithful spouse forfeits their share of family property, which directly contradicts the equal division presumption under BC Family Law Act, s. 81. Other clauses mandate lump-sum payments ranging from $50,000 to $500,000 or more upon discovery of adultery, treating infidelity as a breach of contract rather than a relationship issue. Courts view these provisions as punitive rather than compensatory, making them unenforceable under the principles established in LeVan v. LeVan (2008 ONCA 388), where the Ontario Court of Appeal struck down a similar clause as contrary to public policy.

Why BC Courts Refuse to Enforce Infidelity Clauses

British Columbia courts refuse to enforce infidelity clauses because they conflict with Canada's no-fault divorce framework, which has governed family law since the Divorce Act of 1985. Statistics show that 94.78% of Canadian couples choose the one-year separation path rather than proving adultery or cruelty, demonstrating that the legal system deliberately moved away from fault-based divorce proceedings. When couples attempt to reintroduce fault through prenuptial infidelity clauses, courts view this as an attempt to circumvent the legislative intent of no-fault divorce.

The BC Family Law Act, s. 93(5) provides courts with authority to set aside agreements that are "significantly unfair," and infidelity clauses routinely fail this test. In Remmem v. Remmem (2014 BCSC 1552), the BC Supreme Court clarified that "significant unfairness" requires the unfairness to be "compelling" or "meaningful." Infidelity clauses meet this threshold because they attempt to punish personal behavior rather than address the economic consequences of relationship breakdown. The more recent Schrader v. Schrader (2025 BCCA 50) decision reinforced that courts examine both procedural fairness and substantive outcomes when evaluating marriage agreements.

Public Policy Concerns with Adultery Penalties

BC courts have identified several public policy concerns that render infidelity clauses unenforceable in prenuptial agreements. First, these clauses attempt to regulate personal behavior within marriage, which courts consider inappropriate for contractual enforcement. Second, infidelity clauses often create unconscionable outcomes where one spouse receives dramatically more or less than the equal division mandated by the Family Law Act. Third, proving adultery requires intrusive evidence gathering that courts discourage when alternatives like one-year separation exist. Finally, infidelity clauses can create perverse incentives where a spouse might fabricate or exaggerate allegations to trigger financial penalties.

The LeVan v. LeVan Precedent and Its Impact on BC Law

LeVan v. LeVan (2008 ONCA 388) established the leading Canadian precedent on infidelity clauses, and BC courts consistently follow this Ontario Court of Appeal decision. In LeVan, a wealthy businessman agreed to pay his wife a substantial sum if he was unfaithful during their marriage, and when she discovered his adultery, she sought to enforce this provision. The Court of Appeal struck down the infidelity clause, ruling that imposing a financial penalty for personal misconduct was punitive and contrary to public policy. The court emphasized that prenuptial agreements should address economic consequences of marriage breakdown, not attempt to punish moral failings.

BC courts apply LeVan principles through the lens of Family Law Act, s. 93, which provides multiple grounds for setting aside unfair agreements. Under section 93(3), courts may invalidate agreements where a spouse took "improper advantage of the other spouse's vulnerability" or where circumstances would make the contract voidable under common law. Infidelity clauses often involve power imbalances where one spouse with greater wealth imposes punitive terms on a financially dependent partner. Under section 93(5), courts may set aside provisions that are "significantly unfair" regardless of procedural compliance, which directly applies to disproportionate infidelity penalties.

Alternatives to Infidelity Clauses in BC Marriage Agreements

Couples seeking to address fidelity concerns in British Columbia marriage agreements should focus on enforceable provisions rather than unenforceable infidelity clauses. Property division terms that comply with Family Law Act principles remain enforceable, meaning couples can specify how specific assets will be divided upon separation without tying division to fault. Spousal support provisions establishing quantum and duration can be enforced if they do not attempt to modify support based on misconduct. Estate planning provisions protecting inheritance rights and addressing beneficiary designations provide legitimate protection without triggering public policy concerns.

Enforceable vs. Unenforceable Prenup Provisions in BC

Lifestyle clauses addressing weight maintenance, social media usage, frequency of intimacy, or household responsibilities are similarly unenforceable because they attempt to regulate personal behavior and invade privacy and autonomy. Courts distinguish between legitimate economic provisions and attempts to control spousal conduct through financial consequences.

Requirements for Valid Marriage Agreements in BC

For a prenuptial or marriage agreement to be valid in British Columbia, it must satisfy specific formal and substantive requirements under the Family Law Act. The agreement must be in writing and signed by both spouses with their signatures witnessed by at least one person. While independent legal advice is not legally mandated in BC, agreements without ILA certificates are significantly more vulnerable to challenge under section 93. Full financial disclosure is essential, as failure to disclose significant property or debts provides grounds for setting aside the entire agreement.

Five Elements for Enforceable BC Prenups

1. Full financial disclosure from both parties
2. Absence of coercion, duress, or undue influence
3. Independent legal advice for both spouses (strongly recommended)
4. Sufficient time for negotiation (no last-minute signing)
5. Compliance with BC Family Law Act and federal Divorce Act

The timing of agreement execution matters significantly in BC. Courts scrutinize agreements signed immediately before the wedding ceremony because proximity to the wedding can indicate pressure or duress. Best practices suggest finalizing marriage agreements at least 30-60 days before the wedding date. Both parties should have separate lawyers review the terms, even though this is not legally required, because having independent legal advice creates a presumption that each party understood the agreement's consequences.

How Adultery Affects Divorce Proceedings in BC

Adultery in British Columbia serves as grounds for immediate divorce under the Divorce Act, R.S.C. 1985, c. 3, s. 8, but it has virtually no impact on property division, spousal support, or parenting arrangements. A spouse can file for divorce based on adultery without waiting the standard one-year separation period, but proving adultery requires direct evidence such as photographs or the spouse's admission. Circumstantial evidence like hotel receipts is insufficient. If the innocent spouse has condoned (forgiven) the adultery or reconciled with the unfaithful spouse, the court will not grant divorce on adultery grounds.

Adultery and Spousal Support in BC

The Divorce Act, s. 15.2(5) explicitly states that courts "shall not take into consideration any misconduct of a spouse in relation to the marriage" when determining spousal support. This prohibition applies regardless of prenuptial agreement terms attempting to modify support based on infidelity. The Supreme Court of Canada addressed this issue in Leskun v. Leskun (2006 SCC 25), where a spouse claimed she was traumatized by adultery and unable to become economically self-sufficient. The Court clarified that while misconduct itself cannot affect support, the consequences of misconduct (such as resulting mental health issues affecting employability) may be relevant to support calculations.

This distinction is crucial for understanding why infidelity clauses fail in BC. The law focuses on economic consequences, not moral blame. A clause stating "the unfaithful spouse forfeits spousal support" directly contradicts federal law, while a clause addressing property division might receive closer scrutiny but still likely fails under provincial public policy concerns.

Filing for Divorce in BC: Costs and Procedures

British Columbia residents seeking divorce must file with the BC Supreme Court, which has exclusive jurisdiction over divorce matters. The filing fees total $290-$330 CAD as of May 2026, breaking down as follows: $200 for the Notice of Family Claim (Form F3), $10 federal registration fee, $80 for the desk order requisition, and approximately $40 for the Certificate of Divorce after finalization. Fee waivers are available under Supreme Court Family Rule 20-5 for parties demonstrating financial hardship. If you used a mediator and have a Certificate of Mediation (Form F100), the $200 filing fee is waived, reducing costs to just $90.

Under the Divorce Act, s. 3(1), either spouse must have been habitually resident in British Columbia for at least one year immediately before filing. "Habitually resident" means the place where you regularly, normally, or customarily live as your established home. Both spouses do not need to live in BC; if one spouse has resided in the province for at least one year, they can file in BC Supreme Court even if the other spouse lives outside Canada.

Timeline for Uncontested Divorce in BC

2024-2026 Updates to BC Family Law

As of January 1, 2025, several amendments to Part 6 of the BC Family Law Act came into force through the Family Law Amendment Act, 2023. These reforms clarify how locked-in retirement accounts, life income funds, private annuities, survivor benefits, and commuted value calculations are handled in relationship breakdowns. The "commuted value option" for defined benefit pension plans is now tied to whether the pension plan text specifically allows such transfers. These changes affect prenuptial agreements addressing pension division but do not alter the unenforceability of infidelity clauses.

The Supreme Court Civil Rules consolidation current to April 2026 maintains the existing framework for challenging marriage agreements. Recent BC Court of Appeal decisions like Schrader v. Schrader (2025 BCCA 50) have clarified the application of section 93(5), emphasizing that courts examine whether parties relied on agreement terms when making lifestyle decisions and whether parties deliberately accepted risk of unfairness in exchange for certainty.

What to Include Instead of Infidelity Clauses

British Columbia couples wanting comprehensive prenuptial protection should focus on provisions that courts consistently enforce rather than unenforceable infidelity clauses. Excluded property designations under FLA s. 85 allow spouses to protect pre-marital assets, inheritances, and gifts from equal division. Business valuation methods and buyout procedures can be specified to prevent disputes over closely-held companies. Debt responsibility allocation protects each spouse from the other's pre-marital obligations. Spousal support terms establishing duration and quantum can be enforced if they result in reasonable outcomes.

Communicating values about fidelity can occur through non-binding recitals in the agreement preamble. While courts will not enforce these provisions, they allow couples to express expectations about marriage without creating unenforceable contractual terms. Family lawyers recommend these recitals as a mechanism for important conversations while keeping the legally binding provisions focused on enforceable economic matters.

Recommended Prenup Structure for BC Couples

1. Recitals (non-binding) expressing shared values and expectations
2. Financial disclosure schedules documenting all assets and debts
3. Excluded property designations under FLA s. 85
4. Family property treatment and division methodology
5. Spousal support terms with inflation adjustment
6. Debt allocation and responsibility
7. Amendment and termination procedures
8. Independent legal advice certificates
9. Severability clause protecting valid provisions if others fail

Working with a BC Family Lawyer on Your Prenup

Consulting a British Columbia family lawyer before signing any marriage agreement is strongly recommended, even though independent legal advice is not legally mandated. Lawyers can identify unenforceable provisions like infidelity clauses before they create false expectations. Legal fees for prenuptial agreements in BC typically range from $2,500 to $10,000 per party depending on complexity, asset values, and negotiation time required. This investment protects against significantly higher litigation costs if an agreement is challenged later.

BC lawyers follow specific protocols when drafting marriage agreements. Each party should have separate counsel to avoid conflicts of interest. Lawyers document the negotiation process to demonstrate absence of coercion. Financial disclosure is verified and attached as schedules to the agreement. The signing ceremony is conducted formally with proper witnessing. These procedures create a strong record supporting enforceability if the agreement is later challenged under FLA s. 93.

Frequently Asked Questions

Can I include a cheating clause in my BC prenup?

You can include a cheating clause in your BC prenup, but BC courts will almost certainly refuse to enforce it. Under the Divorce Act, R.S.C. 1985, c. 3, s. 15.2(5), courts cannot consider marital misconduct when determining spousal support, and the BC Family Law Act, s. 93 allows courts to set aside provisions that are significantly unfair or contrary to public policy. Infidelity clauses are considered punitive rather than compensatory, conflicting with Canada's no-fault divorce system established in 1985.

What happens to infidelity clauses when couples divorce in BC?

When couples divorce in British Columbia, courts typically ignore or strike down infidelity clauses during property division and support proceedings. The clause remains in the written agreement but has no legal effect. Courts proceed with equal property division under FLA s. 81 and support calculations based on Spousal Support Advisory Guidelines, without considering which spouse committed adultery. Including an unenforceable clause may signal that other provisions warrant scrutiny.

Are lifestyle clauses enforceable in BC prenuptial agreements?

Lifestyle clauses governing personal behavior such as weight maintenance, social media usage, household responsibilities, or frequency of intimacy are unenforceable in British Columbia. Courts consider these provisions to invade personal privacy and autonomy. Only economic provisions addressing property division, debt allocation, and spousal support are appropriate for prenuptial agreements. BC courts focus on the financial consequences of relationship breakdown rather than regulating conduct during marriage.

How much does a prenuptial agreement cost in British Columbia?

Prenuptial agreements in British Columbia typically cost between $2,500 and $10,000 per party for legal fees, depending on asset complexity and negotiation requirements. Both parties should have separate lawyers, potentially doubling the cost to $5,000-$20,000 total. Additional costs may include business valuations ($3,000-$15,000), real estate appraisals ($300-$500), and financial disclosure preparation. These upfront costs are significantly less than litigation expenses if an agreement is challenged.

Can adultery affect spousal support in British Columbia?

Adultery cannot directly affect spousal support calculations in British Columbia. The Divorce Act, s. 15.2(5) explicitly prohibits courts from considering "any misconduct of a spouse in relation to the marriage" when determining support. However, following Leskun v. Leskun (2006 SCC 25), if misconduct causes documented consequences (such as mental health issues preventing employment), those consequences may be relevant to support duration and quantum.

What are the requirements for a valid marriage agreement in BC?

A valid marriage agreement in British Columbia must be in writing, signed by both spouses, and witnessed by at least one person. While independent legal advice is not legally required, its absence makes agreements vulnerable to challenge under FLA s. 93(3). Both parties must provide full financial disclosure. The agreement must not have been signed under duress or coercion. Provisions cannot be significantly unfair at the time of enforcement under s. 93(5).

How can I prove adultery in BC divorce proceedings?

Proving adultery in British Columbia requires direct evidence such as photographs, video recordings, or the spouse's admission. Circumstantial evidence like hotel receipts or suspicious behavior is insufficient. The court requires proof that your spouse had sexual relations with another person without your consent, and you have not forgiven (condoned) the adultery. Most BC couples choose one-year separation rather than proving adultery because direct evidence requirements make adultery grounds expensive and intrusive to establish.

What is the waiting period for divorce in British Columbia?

The standard waiting period for divorce in British Columbia is one year of living separate and apart under the Divorce Act, s. 8(2)(a). If you can prove adultery or mental/physical cruelty, you can file immediately without waiting one year. However, proving these grounds requires evidence and typically a trial, making the one-year separation path faster and less expensive for most couples. After the Divorce Order is granted, you must wait 31 days before requesting the Certificate of Divorce.

Can I get my prenup thrown out if my spouse cheated?

Your spouse's infidelity is not grounds for invalidating a prenuptial agreement in British Columbia. Under Canada's no-fault divorce system, marital misconduct does not affect the enforceability of marriage agreements. You can challenge a prenup under FLA s. 93 based on lack of disclosure, duress, failure to understand the agreement, or significant unfairness, but these grounds relate to agreement formation and terms rather than post-signing conduct. The infidelity itself provides no legal basis for setting aside the agreement.

What should I do if my prenup has an unenforceable infidelity clause?

If your British Columbia prenup contains an unenforceable infidelity clause, the remaining provisions may still be valid if the agreement includes a severability clause. Consult a family lawyer to review the entire agreement. The lawyer can advise whether the infidelity clause can be severed without affecting other terms, or whether its presence suggests the agreement warrants closer scrutiny under FLA s. 93. You may wish to amend the agreement to remove the problematic provision and replace it with enforceable terms.