Prenup for a Second Marriage in New Brunswick: 2026 Complete Legal Guide

By Antonio G. Jimenez, Esq.New Brunswick19 min read

At a Glance

Residency requirement:
At least one spouse must have been habitually resident in New Brunswick for a minimum of one year immediately before filing the divorce petition, as required by section 3(1) of the Divorce Act. There is no requirement to be a Canadian citizen — you simply must have been physically and habitually living in the province for that period. There is no separate county or municipal residency requirement.
Filing fee:
$125–$225
Waiting period:
Child support in New Brunswick is calculated using the Federal Child Support Guidelines (SOR/97-175), which provide tables setting out monthly support amounts based on the paying parent's gross annual income and the number of children. In shared parenting time arrangements (where each parent has the child at least 40% of the time), the court may adjust support by considering both parents' incomes and the increased costs of maintaining two households. Special or extraordinary expenses — such as childcare, health insurance, or extracurricular activities — are shared between parents in proportion to their incomes.

As of May 2026. Reviewed every 3 months. Verify with your local clerk's office.

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A prenup for a second marriage in New Brunswick is a legally binding marriage contract authorized under Section 34 of the Marital Property Act that allows couples to opt out of the default 50/50 property division and protect assets for children from previous relationships. The average cost ranges from $1,500 to $5,000 when prepared by a New Brunswick family lawyer, and the agreement must be in writing, signed by both parties, and witnessed to be enforceable. For blended families entering remarriage, this document is essential for preserving inheritances, protecting business interests, and ensuring financial clarity between spouses with existing obligations.

Key Facts: Prenup for Second Marriage in New Brunswick

ElementDetails
Governing LawMarital Property Act, RSNB 2012, c. 107, § 34
Filing Fee (if divorce occurs)$110 ($100 petition + $10 clearance certificate)
Prenup Cost Range$1,500 - $5,000 CAD
Residency Requirement1 year in New Brunswick before filing for divorce
Property Division DefaultEqual (50/50) division of marital property
Independent Legal AdviceNot statutorily required but strongly recommended
Can Include Spousal SupportYes, subject to Miglin framework review
Cannot IncludeParenting arrangements or child support

Why a Prenup Is Essential for Second Marriages in New Brunswick

A prenup for a second marriage in New Brunswick protects both spouses and their existing children from the financial complications that arise when blending families with pre-existing assets, debts, and obligations. Under Section 2 of the Marital Property Act, New Brunswick presumes equal division of marital property upon separation, divorce, or death, meaning without a marriage contract, your new spouse could be entitled to 50% of assets you intended to preserve for children from your first marriage. Statistics show that approximately 40% of Canadian marriages involve at least one partner who has been previously married, making prenuptial planning increasingly common.

Second marriages present unique financial complexities that first marriages typically do not. You may be entering the relationship with retirement savings accumulated over 20-30 years, a family home with significant equity, business interests, or inheritances you wish to keep in your bloodline. Your new spouse may have similar assets or, conversely, may carry substantial debt from a previous divorce. A properly drafted prenup for a second marriage in New Brunswick addresses all these scenarios by establishing clear ownership rules before emotions cloud financial judgment.

The stakes are particularly high when children from previous relationships are involved. Without a prenup, the Marital Property Act could redirect assets you intended for your children to your surviving spouse or former spouse's estate. A prenup for a second marriage in New Brunswick allows you to specify exactly how your assets will be treated, ensuring your estate planning intentions are preserved regardless of how the marriage ends.

What New Brunswick Law Says About Marriage Contracts

Section 34 of the Marital Property Act explicitly authorizes couples to enter into marriage contracts before or during their marriage while cohabitating. This section states that two persons may agree on their respective rights and obligations under the marriage, upon separation, annulment, dissolution of the marriage, or upon death. The Act was amended in 2008 and 2020 to update terminology consistent with modern family law practices, most recently replacing references to custody with parenting time and decision-making responsibility.

The formal requirements for a valid marriage contract in New Brunswick are straightforward but mandatory. The agreement must be in writing, signed by both parties, and witnessed. Oral agreements about property division are not enforceable under New Brunswick law. Each spouse must enter into the agreement freely, without coercion, duress, or undue influence, and the terms must be fair and not unconscionable at the time of signing.

Section 41 of the Marital Property Act provides important protections that courts can invoke. A court may disregard any provision of a marriage contract if the spouse who challenges the provision entered into the agreement without receiving legal advice from a person independent of any legal advisor of the other spouse, and the court is of the opinion that applying the provision would be inequitable in all the circumstances. This is why independent legal advice, while not strictly required by statute, is strongly recommended for both parties entering a prenup for a second marriage in New Brunswick.

What Can Be Included in a New Brunswick Prenup

A prenup for a second marriage in New Brunswick can address a comprehensive range of financial matters. The Marital Property Act permits agreements regarding ownership, division, and distribution of property, whether acquired before or during the marriage. This includes family homes, investment portfolios, retirement accounts, business interests, vehicles, and personal property. The agreement can also address spousal support obligations, though courts retain authority to review support provisions under the federal Divorce Act's Miglin framework.

Common provisions in a New Brunswick second marriage prenup include:

  • Identification of each spouse's pre-marital assets and their treatment upon separation
  • Protection of inheritances received before or during the marriage
  • Business valuation and protection clauses for family enterprises
  • Debt allocation specifying which debts remain the responsibility of each spouse
  • Spousal support waivers or predetermined support amounts
  • Life insurance requirements benefiting children from previous marriages
  • Estate planning coordination ensuring consistency with wills and trusts
  • Treatment of the matrimonial home, including buyout provisions

For blended families, the prenup can specify that certain assets bypass equalization entirely and remain separate property. This is particularly important for protecting assets intended for children from a previous marriage. Under New Brunswick law, without such provisions, even assets brought into the marriage could potentially be subject to division depending on how they were used during the relationship.

What Cannot Be Included in a New Brunswick Prenup

Section 34(2) of the Marital Property Act explicitly prohibits marriage contracts from addressing parenting time or decision-making responsibility with respect to children. This limitation reflects the principle that children's interests must be determined based on circumstances at the time of separation, not predetermined years earlier. Any clause purporting to establish parenting arrangements in a prenup will be severed and ignored by New Brunswick courts.

Child support provisions are similarly unenforceable. Under both provincial law and the federal Child Support Guidelines, child support is considered the right of the child, not a negotiable item between parents. Courts will disregard any prenup provision that attempts to waive, limit, or predetermine child support amounts. The amount of child support is calculated according to the Federal Child Support Guidelines based on income and the number of children at the time support is required.

Provisions that are unconscionable or significantly unfair may also be set aside. While parties have broad freedom to contract, New Brunswick courts will not enforce terms that leave one spouse destitute while the other retains substantial wealth. The Supreme Court of Canada's Miglin decision established that spousal support waivers must be fair both at the time of signing and at the time of enforcement. If circumstances have changed dramatically, courts may override even properly executed support waivers.

Cost of a Prenup for Second Marriage in New Brunswick

The average cost of a prenup for a second marriage in New Brunswick ranges from $1,500 to $5,000 when prepared by a family law attorney, though complex agreements involving substantial business assets or multiple properties can exceed $10,000. This cost typically covers drafting the agreement, negotiating terms, and ensuring compliance with the Marital Property Act's formal requirements. Each party should budget for their own independent legal counsel, effectively doubling this figure for a properly executed agreement.

Online legal services offer more affordable alternatives, with platforms like Jointly providing cohabitation and marriage contract services for approximately $379 CAD. However, for second marriages involving significant assets, children from previous relationships, or complex financial situations, the investment in personalized legal advice typically provides better protection. A poorly drafted agreement may be challenged and overturned, resulting in far greater expense than the initial attorney fees.

Compared to the potential cost of litigation without a prenup, these fees represent significant savings. Contested divorces in New Brunswick average $5,000 to $15,000 in legal fees, while cases proceeding to trial can cost $20,000 to $45,000 or more. A well-drafted prenup eliminates most property disputes, often allowing couples to divorce for the basic $110 filing fee plus minimal legal assistance.

Service TypeCost RangeBest For
Online DIY platforms$379 - $800Simple situations, limited assets
Single lawyer drafting$1,500 - $3,000Moderate complexity
Full legal representation (both parties)$3,000 - $10,000Blended families, significant assets
Complex business/estate integration$10,000 - $30,000Business owners, high net worth

Independent Legal Advice Requirements

While New Brunswick does not statutorily mandate independent legal advice for marriage contracts, Section 41 of the Marital Property Act creates strong incentives to obtain it. A court may set aside any provision of a domestic contract if the challenging spouse did not receive independent legal advice and applying the provision would be inequitable. This two-part test means that lacking independent counsel alone is not sufficient to overturn an agreement, but combined with unfairness, it provides grounds for challenge.

For a prenup for a second marriage in New Brunswick to be considered ironclad, both parties should retain separate family law attorneys who have no professional relationship with each other. Each lawyer should review the agreement independently with their client, explain the legal implications, discuss alternatives, and confirm that the client understands what rights they are waiving. The lawyer should then sign a certificate confirming they provided this advice, which can be attached to the agreement.

Full financial disclosure is equally critical to enforceability. Both parties must provide complete and accurate schedules of their assets, debts, income, and financial obligations. This includes bank accounts, investment portfolios, real estate holdings, business interests, pension values, and any other significant assets. Failure to disclose material assets can invalidate the entire agreement, even if it was otherwise properly executed with independent legal advice.

Protecting Children from Previous Marriages

A prenup for a second marriage in New Brunswick serves as a critical estate planning tool for parents with children from previous relationships. Without such an agreement, the Marital Property Act's default equal division rules could redirect significant portions of your estate to a surviving spouse rather than your biological children. This is particularly concerning for parents who have accumulated assets specifically intended for their children's education, home purchases, or inheritance.

The prenup can work in conjunction with your will and any trusts you have established. For example, you might specify in the prenup that certain investment accounts or real property are excluded from marital property and will pass according to your will upon death. You can also require your spouse to waive any right to elect against the will under the Devolution of Estates Act, ensuring your testamentary intentions are honored.

Common protections for children in second marriage prenups include:

  • Designating specific assets as separate property excluded from division
  • Requiring life insurance policies with children as beneficiaries
  • Establishing trusts funded by the prenup provisions
  • Limiting the surviving spouse's share of the estate
  • Protecting the matrimonial home for children if it was pre-marital property
  • Specifying education funding obligations for existing children

The Matrimonial Home in Second Marriages

Under New Brunswick law, both spouses have an equal right to remain in the matrimonial home regardless of whose name is on the title or who owned it before the marriage. This creates particular complications for second marriages where one spouse brings a fully owned home into the relationship. Without a prenup, the non-owner spouse acquires equal possessory rights simply by virtue of the marriage.

A prenup for a second marriage in New Brunswick can address the matrimonial home in several ways. The agreement might specify that the home remains the separate property of the original owner and is excluded from any equalization calculation. It might establish a buyout formula if the marriage ends, allowing the owner to retain the home by compensating the other spouse for contributions made during the marriage. Alternatively, it might provide for sale and distribution of proceeds according to a predetermined formula.

Consider these common approaches to protecting a pre-marital home:

ApproachHow It WorksBest For
Complete exclusionHome remains separate property entirelyShort second marriages, significant home equity
Appreciated value sharingOnly appreciation during marriage is sharedLong-term relationships, fairness concerns
Fixed buyoutPredetermined payment if marriage endsClear expectations, avoiding disputes
Time-based formulaShare increases with marriage durationBalancing protection with fairness

Spousal Support Waivers and Limitations

A prenup for a second marriage in New Brunswick can include provisions waiving or limiting spousal support, but such provisions are subject to judicial review under the federal Divorce Act. The Supreme Court of Canada's Miglin framework requires courts to assess whether the agreement was fair at the time of signing and whether it remains fair at the time of enforcement. Significant changes in circumstances, such as one spouse becoming disabled or unemployed, may justify court intervention despite a support waiver.

For second marriages, spousal support provisions often reflect the reality that both parties enter with established careers and independent financial resources. Many couples agree that neither will seek support from the other, recognizing that both have already built their financial lives. However, such waivers should account for potential changes, such as one spouse leaving employment to care for children or the other spouse's elderly parents.

Factors courts consider when reviewing support waivers include:

  • Whether both parties had independent legal advice
  • The extent of financial disclosure at signing
  • Whether circumstances have substantially changed
  • The duration of the marriage
  • Whether enforcing the waiver would leave one spouse in hardship
  • Each party's financial resources at separation

How Long Does a New Brunswick Prenup Take to Prepare

A properly prepared prenup for a second marriage in New Brunswick typically requires 4 to 8 weeks from initial consultation to final signing. This timeline allows adequate time for financial disclosure, independent legal review, negotiation of terms, and thoughtful consideration by both parties. Rushing the process increases the risk of the agreement being challenged as having been signed under duress or without adequate reflection.

The process generally follows this timeline:

  • Week 1-2: Initial consultations with separate attorneys, financial disclosure preparation
  • Week 2-3: First draft prepared by one attorney, reviewed by the other
  • Week 3-5: Negotiations, revisions, and clarifications
  • Week 5-6: Final draft approved by both parties and their counsel
  • Week 6-8: Signing, witnessing, and execution

Couples should begin the prenup process at least 3 months before their wedding date. Signing immediately before the wedding can suggest duress or undue pressure, providing grounds for later challenge. New Brunswick courts have been skeptical of agreements signed within days of a ceremony, particularly where significant assets are involved.

When New Brunswick Courts May Set Aside a Prenup

New Brunswick courts retain authority to set aside marriage contract provisions under Section 41 of the Marital Property Act and general contract law principles. The most common grounds for invalidation include lack of independent legal advice combined with inequitable terms, failure to provide complete financial disclosure, evidence of coercion or undue influence, and terms that are unconscionable either at signing or enforcement.

The Miglin framework from the Supreme Court of Canada applies specifically to spousal support provisions. Courts apply a two-stage test: first examining whether the agreement was fair and reasonable at the time it was made, and second assessing whether circumstances at enforcement render the agreement unfair or unconscionable. A support waiver that seemed reasonable for a short second marriage may be overridden if the marriage lasted 20 years and one spouse sacrificed career opportunities.

To minimize the risk of a prenup being set aside:

  • Both parties should obtain independent legal advice and sign certificates confirming this
  • Complete financial disclosure should be exchanged and attached to the agreement
  • The agreement should be signed well before the wedding (minimum 30 days)
  • Terms should be fair and reasonable, not dramatically one-sided
  • The agreement should include provisions for modification as circumstances change
  • Both parties should have adequate time to review and consider the terms

Modifying a Prenup After Marriage

A prenup for a second marriage in New Brunswick can be modified or rescinded at any time during the marriage, but any changes must follow the same formal requirements as the original agreement. Under Section 34 of the Marital Property Act, amendments to domestic contracts must be in writing, signed by the parties to be bound, and witnessed. Oral modifications are not enforceable regardless of both parties' intent.

Common reasons for modifying a second marriage prenup include:

  • Significant changes in one spouse's financial circumstances
  • Birth or adoption of children together
  • Acquisition of new property or business interests
  • Changes in estate planning goals
  • Relocation that affects applicable law
  • Retirement of one or both spouses

When modifying the agreement, both parties should again obtain independent legal advice and exchange updated financial disclosure. The modification should clearly identify which provisions of the original agreement are being changed and confirm that all other provisions remain in effect. This approach provides the strongest protection against later challenges to either the original agreement or its amendments.

Frequently Asked Questions

Is a prenup legally binding in New Brunswick for a second marriage?

Yes, a prenup for a second marriage is legally binding in New Brunswick when it complies with Section 34 of the Marital Property Act. The agreement must be in writing, signed by both parties, and witnessed. Courts will enforce properly executed marriage contracts, though they retain authority to review provisions for fairness and may set aside unconscionable terms or those signed without independent legal advice under Section 41.

How much does a prenup cost for a second marriage in New Brunswick?

A prenup for a second marriage in New Brunswick typically costs between $1,500 and $5,000 CAD for attorney preparation, with each party paying their own legal fees for independent advice. Complex agreements involving businesses or substantial assets can exceed $10,000. Online services offer more affordable options starting around $379, though professional legal advice is recommended for blended family situations.

Can a prenup protect my children from my first marriage in New Brunswick?

Yes, a prenup for a second marriage in New Brunswick can protect assets intended for children from your first marriage by designating specific property as separate and excluded from the Marital Property Act's equal division rules. The agreement can work with your will and trusts to ensure your estate planning intentions are preserved, keeping inheritances within your bloodline rather than passing to a surviving spouse.

Can I waive spousal support in a New Brunswick prenup?

Yes, spousal support waivers are permitted in New Brunswick prenups, but courts retain authority to review them under the federal Divorce Act's Miglin framework. The waiver must be fair at both signing and enforcement. Courts may override support waivers if circumstances have substantially changed, one spouse faces hardship, or the waiver was signed without independent legal advice and full financial disclosure.

Do both spouses need separate lawyers for a New Brunswick prenup?

While not legally required, both spouses should retain separate lawyers for a prenup in New Brunswick. Under Section 41 of the Marital Property Act, courts may set aside provisions if a spouse entered the agreement without independent legal advice and the provision would be inequitable. Having separate counsel significantly strengthens enforceability and protects both parties.

Can a prenup address the matrimonial home in a second marriage?

Yes, a New Brunswick prenup can specify how the matrimonial home will be treated, including whether it remains the separate property of the original owner. However, both spouses retain equal possessory rights during the marriage regardless of prenup terms. The agreement can establish buyout formulas, specify how proceeds would be divided upon sale, and protect pre-marital equity.

How far before the wedding should we sign the prenup?

Couples should sign their prenup for a second marriage in New Brunswick at least 30 days before the wedding, though 60-90 days is preferable. Signing too close to the ceremony may suggest duress, providing grounds to challenge the agreement. The entire process from initial consultation to signing typically requires 4-8 weeks, so begin discussions at least 3 months before your wedding date.

What happens if we divorce without a prenup in New Brunswick?

Without a prenup, New Brunswick's Marital Property Act applies, presuming equal (50/50) division of marital property including the matrimonial home, family assets, and accumulated debts. For second marriages, this could mean assets you intended for children from your first marriage become subject to division. Spousal support would be determined by the Federal Spousal Support Advisory Guidelines based on income and marriage duration.

Can a prenup be changed after marriage in New Brunswick?

Yes, a prenup can be modified or rescinded at any time during marriage, but changes must follow the same formal requirements as the original agreement under Section 34 of the Marital Property Act. Amendments must be in writing, signed by both parties, and witnessed. Both spouses should obtain updated independent legal advice and exchange current financial disclosure when making modifications.

Are online prenups valid in New Brunswick?

Online prenups can be valid in New Brunswick if they meet the Marital Property Act's requirements: written form, signed by both parties, and witnessed. However, online services may not adequately address complex blended family situations or provide the independent legal advice that strengthens enforceability. For second marriages with significant assets or children from previous relationships, professional legal guidance is recommended despite the higher cost.

Frequently Asked Questions

Is a prenup legally binding in New Brunswick for a second marriage?

Yes, a prenup for a second marriage is legally binding in New Brunswick when it complies with Section 34 of the Marital Property Act. The agreement must be in writing, signed by both parties, and witnessed. Courts will enforce properly executed marriage contracts, though they retain authority to review provisions for fairness and may set aside unconscionable terms or those signed without independent legal advice under Section 41.

How much does a prenup cost for a second marriage in New Brunswick?

A prenup for a second marriage in New Brunswick typically costs between $1,500 and $5,000 CAD for attorney preparation, with each party paying their own legal fees for independent advice. Complex agreements involving businesses or substantial assets can exceed $10,000. Online services offer more affordable options starting around $379, though professional legal advice is recommended for blended family situations.

Can a prenup protect my children from my first marriage in New Brunswick?

Yes, a prenup for a second marriage in New Brunswick can protect assets intended for children from your first marriage by designating specific property as separate and excluded from the Marital Property Act's equal division rules. The agreement can work with your will and trusts to ensure your estate planning intentions are preserved, keeping inheritances within your bloodline rather than passing to a surviving spouse.

Can I waive spousal support in a New Brunswick prenup?

Yes, spousal support waivers are permitted in New Brunswick prenups, but courts retain authority to review them under the federal Divorce Act's Miglin framework. The waiver must be fair at both signing and enforcement. Courts may override support waivers if circumstances have substantially changed, one spouse faces hardship, or the waiver was signed without independent legal advice and full financial disclosure.

Do both spouses need separate lawyers for a New Brunswick prenup?

While not legally required, both spouses should retain separate lawyers for a prenup in New Brunswick. Under Section 41 of the Marital Property Act, courts may set aside provisions if a spouse entered the agreement without independent legal advice and the provision would be inequitable. Having separate counsel significantly strengthens enforceability and protects both parties.

Can a prenup address the matrimonial home in a second marriage?

Yes, a New Brunswick prenup can specify how the matrimonial home will be treated, including whether it remains the separate property of the original owner. However, both spouses retain equal possessory rights during the marriage regardless of prenup terms. The agreement can establish buyout formulas, specify how proceeds would be divided upon sale, and protect pre-marital equity.

How far before the wedding should we sign the prenup?

Couples should sign their prenup for a second marriage in New Brunswick at least 30 days before the wedding, though 60-90 days is preferable. Signing too close to the ceremony may suggest duress, providing grounds to challenge the agreement. The entire process from initial consultation to signing typically requires 4-8 weeks, so begin discussions at least 3 months before your wedding date.

What happens if we divorce without a prenup in New Brunswick?

Without a prenup, New Brunswick's Marital Property Act applies, presuming equal (50/50) division of marital property including the matrimonial home, family assets, and accumulated debts. For second marriages, this could mean assets you intended for children from your first marriage become subject to division. Spousal support would be determined by the Federal Spousal Support Advisory Guidelines based on income and marriage duration.

Can a prenup be changed after marriage in New Brunswick?

Yes, a prenup can be modified or rescinded at any time during marriage, but changes must follow the same formal requirements as the original agreement under Section 34 of the Marital Property Act. Amendments must be in writing, signed by both parties, and witnessed. Both spouses should obtain updated independent legal advice and exchange current financial disclosure when making modifications.

Are online prenups valid in New Brunswick?

Online prenups can be valid in New Brunswick if they meet the Marital Property Act's requirements: written form, signed by both parties, and witnessed. However, online services may not adequately address complex blended family situations or provide the independent legal advice that strengthens enforceability. For second marriages with significant assets or children from previous relationships, professional legal guidance is recommended despite the higher cost.

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Written By

Antonio G. Jimenez, Esq.

Florida Bar No. 21022 | Covering New Brunswick divorce law

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