Why Marital Agreements Matter
Prenuptial and postnuptial agreements allow couples to define the financial terms of their marriage -- and, if necessary, their divorce -- before a court is forced to do it for them. In Florida, these agreements can protect premarital assets, define spousal support obligations, and provide certainty for both parties.
However, these agreements are only as strong as their enforceability. Florida law imposes specific requirements that must be met, and agreements that fail to comply can be invalidated entirely.
The Florida Uniform Premarital Agreement Act
Prenuptial agreements in Florida are governed by the Florida Uniform Premarital Agreement Act (FUPAA), codified at Florida Statute 61.079. This statute establishes the framework for creating, enforcing, and challenging prenuptial agreements.
Under FUPAA, a prenuptial agreement must meet the following basic requirements:
- Written form -- Oral prenuptial agreements are not enforceable in Florida
- Signed by both parties -- Both the prospective spouses must sign the agreement
- Executed before the marriage -- The agreement must be signed prior to the wedding ceremony
- Voluntary execution -- Neither party can be coerced, pressured, or defrauded into signing
No consideration beyond the marriage itself is required. Unlike ordinary contracts, a prenuptial agreement does not need the exchange of something of value to be binding.
Requirements for Enforceability
Beyond the basic formalities, Florida courts evaluate several factors when determining whether to enforce a prenuptial agreement:
Voluntariness -- The agreement must have been executed voluntarily by both parties. Evidence of duress, undue influence, or coercion can render the agreement unenforceable. Courts look at the circumstances surrounding execution, including timing (agreements signed hours before the wedding face heightened scrutiny), whether both parties had independent legal counsel, and whether either party was pressured into signing.
Full and fair disclosure -- Each party must have provided the other with a full and fair disclosure of their assets, liabilities, and income. Alternatively, the challenging party must have had an adequate knowledge of the other party's financial situation, or must have voluntarily and expressly waived the right to disclosure. Hidden assets or material misrepresentations about financial worth can invalidate the entire agreement.
Not unconscionable -- The agreement must not have been unconscionable at the time it was executed. Unconscionability is a high bar, but agreements that leave one spouse destitute while the other retains enormous wealth may face challenge. Courts evaluate unconscionability as of the date the agreement was signed, not at the time of divorce.
What a Prenuptial Agreement Can Address
Florida prenuptial agreements can cover a broad range of financial matters:
- Property rights -- Defining what constitutes marital versus nonmarital property, including property acquired during the marriage
- Disposition of property upon separation, divorce, or death
- Spousal support (alimony) -- Setting, limiting, or waiving alimony obligations
- Life insurance -- Requiring one or both parties to maintain policies
- Estate planning provisions -- Coordinating the agreement with wills and trusts
- Allocation of financial responsibilities during the marriage
- Any other matter not in violation of public policy or criminal law
What a Prenuptial Agreement Cannot Address
Florida law draws clear boundaries around what prenuptial agreements may include:
- Child custody and time-sharing -- A prenuptial agreement cannot predetermine custody arrangements. Custody decisions must always be based on the best interests of the child at the time of the proceeding, as required by Florida Statute 61.13.
- Child support -- Similarly, child support cannot be waived, limited, or predetermined in a prenuptial agreement. Child support is the right of the child, not the parent, and the court retains jurisdiction to set appropriate support regardless of any agreement between the parents.
- Provisions that violate public policy -- Agreements that encourage divorce, impose personal behavior requirements (such as weight clauses or intimacy mandates), or include illegal terms will not be enforced.
Postnuptial Agreements in Florida
A postnuptial agreement serves the same general purpose as a prenuptial agreement but is executed after the marriage has taken place. Florida courts recognize and enforce postnuptial agreements, although they are subject to somewhat different standards.
Because the parties are already married when a postnuptial agreement is executed, courts apply a heightened standard of scrutiny. Spouses owe each other fiduciary duties, which means:
- Full transparency about all financial matters is required
- Independent legal counsel for both parties is strongly recommended
- Fair and reasonable terms are expected, given the confidential relationship between spouses
- Adequate consideration may be required beyond what FUPAA demands for prenuptial agreements
Postnuptial agreements are particularly useful when circumstances change during a marriage -- for example, when one spouse starts a business, receives an inheritance, or when the couple reconciles after a period of separation.
Challenging a Prenuptial or Postnuptial Agreement
A party seeking to invalidate a marital agreement in Florida must typically prove one of the following:
- Involuntary execution -- The agreement was signed under duress, fraud, or undue influence
- Inadequate financial disclosure -- The other party failed to provide a full and fair accounting of their finances, and the challenging party did not have independent knowledge or waive disclosure
- Unconscionability -- The agreement was grossly unfair at the time of execution
- Lack of capacity -- One party lacked the mental capacity to understand the agreement at the time of signing
- Procedural defects -- The agreement was not properly executed in writing and signed by both parties
The burden of proof generally falls on the party challenging the agreement. Florida courts begin with a presumption that a properly executed agreement is valid.
Practical Guidance for Protecting Your Agreement
To maximize the likelihood that your prenuptial or postnuptial agreement will withstand judicial scrutiny:
- Ensure both parties have independent attorneys who review the agreement and advise their respective clients
- Provide complete financial disclosure through detailed schedules of assets, debts, and income
- Allow adequate time for review -- avoid signing under time pressure immediately before the wedding
- Keep the terms reasonable -- agreements perceived as grossly one-sided face the greatest risk of challenge
- Execute the agreement with proper formalities, including notarization
A well-drafted marital agreement provides both parties with financial predictability and can significantly reduce the cost and conflict of a future divorce proceeding.