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Prenuptial Agreement Cost in Massachusetts

Last updated 5 min read

A prenuptial agreement in Massachusetts typically costs $2,000 – $2,500 for a simple agreement and up to $5,000 – $10,000 for complex estates. Massachusetts prenup costs depend on attorney rates, how complex your finances are, and whether both spouses retain their own lawyer. This page isn't legal advice — it's a plain-English summary of how a prenup in Massachusetts works, what it costs, and what the state requires.

Cost breakdown

Complexity Typical cost Who this fits
Simple $2,000 – $2,500 W-2 income, no business, no kids from prior relationships
Moderate $2,500 – $5,000 Real estate, retirement accounts, modest separate property
Complex $5,000 – $10,000 Business interests, multi-state property, expected inheritance

Average attorney rate in Massachusetts: $250–$400/hr. Both spouses hiring separate attorneys typically adds 50–75% to the total bill.

What Massachusetts law requires

  • In writing: Yes — required.
  • Notarization: Not required, but recommended for evidentiary purposes.
  • Independent counsel: Required by statute.
  • Community property state: No — equitable distribution applies in the absence of an agreement.

The controlling statute is Mass. Gen. Laws ch. 209, §§25–26 — read the full text on the Massachusetts legislature site.

Massachusetts applies the DeMatteo "two-look" fairness test: the agreement must be fair and reasonable at the time of execution AND not unconscionable at the time of enforcement. The dual review is uniquely demanding — agreements upheld in other states have been struck down in Massachusetts because circumstances at divorce made enforcement unconscionable.

A notable Massachusetts case

DeMatteo v. DeMatteo, 436 Mass. 18, 762 N.E.2d 797 (2002). Massachusetts SJC established the "two-look" test: a prenup must be fair when signed AND not unconscionable when enforced. Among the most demanding substantive-fairness frameworks in the United States.

Read the full DeMatteo v. DeMatteo case explanation →

Timeline

Start the conversation at least 90 days before the wedding and sign at least 30 days before.

Massachusetts prenup costs by metro

Major Massachusetts metros have local rate variations:

  • Boston — ~20% above Massachusetts state average

Find a prenup attorney in Massachusetts

The single most important hire for a Massachusetts prenup is your own family law attorney. We partner with LegalMatch to connect readers with vetted family law attorneys in their state.

Find a prenup attorney in Massachusetts

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Frequently asked questions

How much does a prenup cost in Massachusetts?
A prenuptial agreement in Massachusetts typically costs $2,000 – $2,500 for a simple agreement, $2,500 – $5,000 for a moderate one, and $5,000 – $10,000 for complex estates with businesses or multi-state property. Average attorney rates in the state run $250–$400/hr. Both spouses hiring separate attorneys adds 50–75% to the total — and is strongly recommended.
Does Massachusetts require a notary for a prenup?
No, Massachusetts does not require notarization by statute. A prenup must be in writing and signed by both parties; notarization is a best practice for evidentiary reasons but not a legal requirement.
Do both spouses need their own attorney in Massachusetts?
Independent counsel for each spouse is required by statute. Joint representation — one attorney for both spouses — is among the most common grounds for a court to invalidate a prenup later. Even where it isn't strictly required, paying one lawyer to "save money" frequently costs the entire agreement.
What statute governs prenups in Massachusetts?
Massachusetts prenups are governed by Mass. Gen. Laws ch. 209, §§25–26. The full statute text is available on the state legislature site.

Massachusetts prenup attorneys

What to look for, typical rates.

Will my prenup hold up?

60-second check applying Massachusetts rules.

Compare states side-by-side

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DeMatteo v. DeMatteo case

Massachusetts SJC established the "two-look" test: a prenup must be fair when signed AND n…

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6-step process.

What makes a prenup invalid?

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