Laws for Prenuptial Agreements in Massachusetts

Getting married in Massachusetts?

Massachusetts does not treat a prenuptial agreement as a contract that is examined only once. The agreement must be valid when the couple signs it, and a court may examine it again if either spouse challenges enforcement during divorce.

This two-stage review is the defining feature of Massachusetts prenup law. It does not prevent couples from protecting businesses, premarital property, future income, inheritances, or other assets. It does mean that the agreement should be designed to remain workable if the marriage lasts longer or develops differently than the couple expects.

 

Prenuptial Agreements in Massachusetts – Key points

  • Prenups are recognized if they’re voluntary, in writing, and signed by both partners.
  • Massachusetts applies a “two-look” test. At execution, the agreement must be fair and reasonable.
  • Massachusetts prenups must be in writing, signed by both parties, and executed voluntarily before the marriage.

Why Massachusetts Uses a Two-Look Test

Massachusetts applies a two-look test in prenuptial agreements because courts view marriage as an evolving economic partnership. An agreement that appears fair when signed may still be reviewed at divorce to ensure it does not produce an unconscionable result under changed circumstances.

This approach reflects Massachusetts’ emphasis on equity and ongoing financial responsibility between spouses, rather than strict contract enforcement alone.

Are prenups legal in Massachusetts?

Massachusetts prenups must be in writing, signed by both parties, and executed voluntarily before the marriage. While notarization is not strictly required by statute, it is strongly advised to prove authenticity. Full and fair financial disclosure is expected — either through detailed schedules of assets and liabilities or a clear written waiver. Independent legal counsel is not mandatory but is highly recommended.

What Happens Without a Prenup in Massachusetts?

Massachusetts is an equitable distribution state. It does not automatically divide every asset equally, and it does not limit the divisible estate to property purchased jointly or acquired during marriage.

Under Massachusetts General Laws Chapter 208, Section 34, a divorce court may assign all or part of one spouse’s estate to the other. The statute allows courts to consider:

  • The length of the marriage
  • Each spouse’s age and health
  • Income, occupation, employability, and vocational skills
  • Assets, liabilities, and financial needs
  • Opportunities to acquire future income and assets
  • Contributions to acquiring, preserving, or increasing property
  • Contributions as a homemaker
  • The needs of dependent children
  • Alimony and other financial circumstances

Property does not necessarily stay outside the marital estate because one spouse acquired it before marriage, inherited it, or kept it titled in an individual name. The source of the property is relevant, but it is one factor within a broader equitable analysis.

A Massachusetts prenuptial agreement allows the couple to replace much of this uncertainty with financial terms chosen before marriage.

What makes a Massachusetts prenup enforceable?

Massachusetts applies a “two-look” test. At execution, the agreement must be fair and reasonable. At enforcement (divorce), it must still be conscionable in light of circumstances. The agreement will not be enforced if it leaves one spouse without sufficient means of support or is unconscionably one-sided at divorce.

What “Conscionable at Enforcement” Means

At divorce, Massachusetts courts examine whether enforcing a prenuptial agreement would leave one spouse without reasonable support or a meaningful share of marital resources. The focus is not whether the agreement is equal, but whether it is fundamentally unfair given the parties’ circumstances at that time.

Health issues, earning capacity, length of marriage, and reliance on marital roles can all influence this analysis.

What Can Cause a Prenup to Fail the Second Look?

The second-look doctrine is concerned with developments that place one spouse in a fundamentally different and financially untenable position from what the parties reasonably contemplated.

Potential concerns include:

  • An unexpected physical or mental disability
  • The loss of realistic employment prospects
  • Support payments that have lost much of their value to inflation
  • A promised asset becoming worthless or heavily encumbered
  • A financial arrangement that no longer provides the basic protection the couple intended
  • Enforcement that would leave one spouse without sufficient property or maintenance for support

The Massachusetts Appeals Court applied this reasoning in Kelcourse v. Kelcourse. The agreement gave the wife the marital residence, but by the time of divorce the home had negative equity, serious structural problems, and repair needs estimated at more than $300,000. Enforcing the agreement as written would have left her without sufficient property or appropriate employment to support herself. The court upheld the decision not to enforce it.

The problem was not simply that the agreement had become less favorable. The asset intended to provide financial security no longer served that purpose. 

What a Massachusetts Prenup Can Address

Parties can waive property rights, inheritance rights, and spousal support. However, provisions affecting child custody or support are unenforceable. Alimony waivers may be set aside if they would leave a spouse unable to support themselves at divorce.

Massachusetts Courts and Alimony Waivers

In Massachusetts, alimony waivers are more likely to be reviewed at enforcement than property provisions. Courts focus on whether enforcing the waiver would undermine basic support obligations after divorce.

A prenup can limit or waive alimony, but a complete waiver is one of the provisions most likely to matter during the second look.

A waiver is not automatically invalid because one spouse later earns much more than the other. The concern is whether circumstances arising during the marriage would make enforcement unconscionable or leave the other spouse without sufficient property, maintenance, or realistic employment for support.

A One-Sided Agreement Is Not Automatically Invalid

Massachusetts courts recognize that protecting unequal assets is often the reason a couple wants a prenup.

An agreement may leave one spouse with substantially less property than the other and still be enforceable. It does not have to approximate the property division or alimony a judge might award under ordinary divorce law.

At the time of signing, the more important question is whether the agreement essentially strips one partner of substantially all marital interests. At enforcement, the question becomes whether circumstances during the marriage have made the agreed result unconscionable.

The Massachusetts Supreme Judicial Court has held that the following facts, by themselves, do not necessarily defeat a valid prenup:

  • A significant difference in the spouses’ post-divorce wealth
  • A lower standard of living for one spouse after divorce
  • A long marriage
  • The birth of children
  • A large increase in one spouse’s income or assets

Those circumstances may still matter as part of the overall case. They simply do not replace the required analysis of disclosure, voluntariness, waiver, and conscionability.

Income and Lifestyle Changes Matter More in Massachusetts

Massachusetts courts often give significant weight to how a couple’s standard of living and income changed during the marriage. Agreements that sharply limit support despite long marriages or major lifestyle shifts may face closer scrutiny at enforcement.

Clear planning around future income, career changes, and role-based sacrifices can strengthen enforceability.

 

Financial Disclosure in Massachusetts

Full and fair financial disclosure is a central part of a valid Massachusetts prenup. Disclosure should give each partner enough information to make a reasonable decision about the agreement and the rights being waived.

A financial schedule should identify significant:

  • Real estate
  • Bank and investment accounts
  • Retirement benefits
  • Business and partnership interests
  • Trust interests
  • Income and expected compensation
  • Loans, taxes, and other liabilities
  • Valuable personal property
  • Anticipated stock, bonus, or deferred compensation

A private business may not have a readily available market value. The disclosure should still explain the ownership percentage, nature of the business, available financial information, and approximate value.

Massachusetts courts also consider whether the challenging partner had independent knowledge of the other’s finances. Relying on informal knowledge is riskier than providing complete written schedules and supporting documents.

A general waiver of additional disclosure should not be treated as a substitute for meaningful financial information. The agreement should document what was disclosed, what additional information was requested, and whether the receiving partner was satisfied with the response.

 

The Waiver Must Be Clear

A valid Massachusetts prenup should explain the rights each partner would otherwise possess and state which rights are being limited or waived.

Depending on the agreement, those rights may include claims involving:

  • Property assignment at divorce
  • Alimony
  • Appreciation of premarital assets
  • Retirement benefits
  • Rights in a business
  • Inheritance and estate rights
  • Attorney fees
  • Use or ownership of the marital home

The waiver should be understandable and comprehensive. A partner cannot make a meaningful choice without knowing both what the agreement provides and what Massachusetts law might provide without it.

Independent Counsel as a Practical Safeguard

While independent legal counsel is not required in Massachusetts, courts often view separate representation as evidence that both parties understood the agreement and negotiated it fairly, which can matter under the two-look analysis.

How to Create a Massachusetts Prenup Online

Trusted Prenup guides couples through the financial choices that matter under Massachusetts law. The collaborative questionnaire helps both partners:

  • Identify current property and debt
  • Decide what will remain separate
  • Establish how future income and assets will be treated
  • Address businesses, real estate, retirement, and inheritance
  • Consider alimony and changing financial circumstances
  • Create detailed disclosure schedules
  • Review the rights each partner will waive

The platform then creates a Massachusetts-specific agreement based on those decisions. Couples can add online notarization and separate attorney review when appropriate.

Trusted Prenup’s online prenup starts at $599, providing a flat-fee alternative to open-ended drafting costs.

Simple process

Draft and sign well before the wedding to avoid claims of duress. Provide full disclosure, attach asset schedules, and use independent counsel on both sides. Notarize and keep original copies safe.

Next steps

Start your Massachusetts prenup

General information only, not legal advice. Laws and cases change—consider speaking with a local attorney about your situation.

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