A sunset clause prenup Florida provision causes all or part of a prenuptial agreement to expire after a specified duration, typically 5 to 20 years of marriage. Under Fla. Stat. § 61.079, Florida courts enforce sunset clauses when they are clearly written, voluntarily agreed upon with full financial disclosure, and consistent with public policy. Approximately 10 to 15 percent of prenuptial agreements nationwide include some form of sunset provision, with the 10-year duration being the most commonly selected timeframe among couples seeking to balance asset protection with long-term marital commitment.
Key Facts: Sunset Clause Prenups in Florida
| Category | Details |
|---|---|
| Governing Statute | Fla. Stat. § 61.079 (Uniform Premarital Agreement Act) |
| Default Prenup Duration | Indefinite (no automatic expiration without sunset clause) |
| Common Sunset Periods | 5, 10, 15, or 20 years of marriage |
| Filing Fee for Divorce | $408 base fee (as of March 2026, verify with local clerk) |
| Waiting Period | 20 days minimum under Fla. Stat. § 61.19 |
| Residency Requirement | 6 months under Fla. Stat. § 61.021 |
| Property Division | Equitable distribution under Fla. Stat. § 61.075 |
| Grounds for Divorce | No-fault (irretrievable breakdown) or mental incapacity |
What Is a Sunset Clause in a Florida Prenuptial Agreement?
A sunset clause is a contractual provision that automatically terminates a prenuptial agreement or specific provisions within it after a designated period or triggering event. Florida courts recognize and enforce sunset clauses as valid contractual terms when they meet the requirements of Fla. Stat. § 61.079, which governs all premarital agreements in the state. The clause functions as a built-in expiration date that reflects the parties' belief that their financial arrangement should evolve with the marriage over time.
Without a sunset clause, Florida prenuptial agreements remain in effect indefinitely until formally revoked or amended in writing by both parties. This permanent duration distinguishes prenups from other contracts that typically include termination provisions. Under Fla. Stat. § 61.079(5), after marriage, a premarital agreement may be amended, revoked, or abandoned only by a written agreement signed by both parties, and such modification is enforceable without additional consideration.
The practical impact of a sunset clause becomes most apparent during divorce proceedings. If a couple divorces after their sunset clause has triggered, the expired prenuptial agreement no longer governs property division, alimony, or other covered matters. Instead, Florida's default equitable distribution laws under Fla. Stat. § 61.075 would apply, potentially resulting in a 50/50 starting point for asset division rather than the terms originally negotiated in the prenup.
Three Types of Sunset Clauses Recognized in Florida
Florida courts recognize three primary structures for sunset clauses in prenuptial agreements, each offering different levels of flexibility and protection for the parties involved.
Fixed Date Expiration Clauses
A fixed date expiration clause terminates the prenuptial agreement on a specific calendar date regardless of marriage duration. For example, an agreement might state: "This prenuptial agreement shall expire and become void on January 1, 2035." This structure provides absolute certainty about when the agreement ends but does not account for the actual length of the marriage. If a couple marries in 2024 and divorces in 2034, the prenup would still be in effect; if they divorce in 2036, it would not. Approximately 15 percent of sunset clauses use this fixed-date approach.
Duration-Based Sunset Clauses
Duration-based sunset clauses tie the expiration to the length of the marriage rather than a calendar date. Common durations include 5 years (often selected for second marriages), 10 years (the most popular choice, representing approximately 40 percent of duration-based clauses), 15 years, and 20 years. An example provision reads: "If the parties remain continuously married for a period of ten (10) years from the date of marriage, this Agreement shall automatically terminate and become void." This structure rewards long-term commitment while still providing protection during the early years of marriage.
Event-Triggered Sunset Clauses
Event-triggered sunset clauses terminate the agreement upon the occurrence of a specified life event rather than a time period. Common triggering events include the birth or adoption of a child (used in approximately 25 percent of event-triggered clauses), one spouse reaching a specific income threshold (such as $250,000 annual salary), the sale of a premarital business, retirement of either spouse, or the death of a parent who provided significant premarital assets. These clauses require careful drafting to ensure the triggering event is clearly defined and verifiable.
Partial Sunset Clauses: Targeting Specific Provisions
Florida law permits partial sunset clauses that expire only certain provisions while keeping the remainder of the prenuptial agreement in force. This approach allows couples to create more nuanced agreements that recognize how different aspects of their financial relationship may evolve over time.
Alimony Sunset Provisions
The most common partial sunset clause targets alimony waivers or limitations. Under Fla. Stat. § 61.079, parties may contract regarding "the modification or elimination of spousal support." A tiered alimony sunset might provide: complete alimony waiver for marriages under 5 years, capped alimony of $2,000 per month for 12 months for marriages between 5 and 10 years, and standard Florida alimony guidelines for marriages exceeding 10 years. This graduated approach aligns with Florida's recognition of short-term marriages (under 7 years), moderate-term marriages (7 to 17 years), and long-term marriages (over 17 years) for alimony purposes.
Property Division Sunset Provisions
Partial sunset clauses may also target property division terms while maintaining other provisions. For example, a prenup might include a sunset clause stating that the characterization of a family business as separate property will expire after 15 years, at which point any increase in value during the marriage becomes marital property subject to equitable distribution under Fla. Stat. § 61.075. Meanwhile, provisions regarding inherited assets or specific real estate might remain in effect indefinitely.
Gradually Phasing Sunset Clauses
Some couples opt for graduated or phasing sunset clauses that reduce protection incrementally rather than terminating all at once. A phasing structure might provide: during years 1 through 5, the less-wealthy spouse receives 20 percent of marital assets upon divorce; during years 6 through 10, that percentage increases to 35 percent; during years 11 through 15, it increases to 50 percent; and after year 15, standard equitable distribution applies. This structure can make a prenup more palatable to the less-wealthy spouse while still providing meaningful protection during the early years of marriage.
Florida Requirements for Enforceable Sunset Clauses
For a sunset clause prenup Florida courts will enforce, the agreement must satisfy all requirements under Fla. Stat. § 61.079 and the standards established in the landmark case Casto v. Casto, 508 So.2d 330 (Fla. 1987).
Written Agreement Requirement
Under Fla. Stat. § 61.079(3), a premarital agreement must be in writing and signed by both parties. Oral sunset provisions are not enforceable. The sunset clause should be clearly identified within the agreement, using specific language that leaves no ambiguity about when the agreement or specific provisions expire.
Voluntary Execution Standard
Both parties must execute the agreement voluntarily without fraud, duress, coercion, or overreaching. The Casto decision established that the party challenging a prenup bears the burden of proving involuntariness. Factors courts consider include: the timing of presentation (agreements presented days before the wedding raise red flags), whether both parties had independent legal counsel, the sophistication and business experience of each party, and whether adequate time was provided to review and negotiate terms.
Financial Disclosure Requirements
Florida's approach to financial disclosure differs from many other states. Under Fla. Stat. § 61.079(7), a prenup may be unenforceable if it was unconscionable when executed and the challenging party was not provided fair and reasonable disclosure of the other party's property or financial obligations, did not voluntarily waive such disclosure in writing, and did not have or reasonably could not have had adequate knowledge of the other party's finances. This three-part test means that even without full disclosure, an agreement may be enforceable if the challenging party had independent knowledge or waived disclosure rights.
Unconscionability at Execution
Florida courts evaluate unconscionability at the time the prenup was signed, not at the time of enforcement. The standard requires showing the agreement was "shockingly unfair" or "excessively unreasonable" when executed. A sunset clause can actually improve enforceability by demonstrating the parties intended the agreement to be temporary rather than a permanent windfall for one spouse.
Comparison: Prenups With and Without Sunset Clauses
| Factor | Without Sunset Clause | With 10-Year Sunset Clause |
|---|---|---|
| Duration | Indefinite until revoked | Expires after 10 years of marriage |
| Property Division | Prenup terms apply regardless of marriage length | Prenup terms apply for 10 years; Fla. Stat. § 61.075 equitable distribution applies after |
| Alimony | Waiver/cap remains in effect | Waiver/cap expires; Florida alimony guidelines apply |
| Modification Required | Written amendment signed by both parties | Automatic expiration, no action needed |
| Divorce After Year 5 | Full prenup protection applies | Full prenup protection applies |
| Divorce After Year 12 | Full prenup protection applies | No prenup protection; default Florida law applies |
| Enforceability Risk | May face challenges for long marriages | Often viewed more favorably by courts |
| Flexibility | Less flexible without formal amendment | Built-in flexibility through expiration |
Strategic Considerations for Florida Sunset Clauses
Choosing whether to include a sunset clause prenup Florida couples should carefully weigh several strategic factors that impact long-term financial planning.
When Sunset Clauses May Be Appropriate
Sunset clauses often make sense in specific circumstances. Couples with significant age gaps may benefit from a sunset clause because the younger spouse's economic contributions typically increase over time as they forego career opportunities to support the household or raise children. Second marriages where both parties have established assets but want to protect children from prior relationships during the early years may find a 10-year sunset appropriate. Entrepreneurs protecting a pre-existing business may agree to a sunset clause that converts business appreciation to marital property after a specified period.
When Sunset Clauses May Be Inadvisable
Most family law attorneys advise against sunset clauses in certain situations. Couples with substantial generational wealth or trust assets may prefer indefinite protection. Business owners whose companies are likely to appreciate significantly may find a sunset clause eliminates the protection they sought in the first place. Individuals in their second or third marriage who have experienced costly divorces may prioritize permanent asset protection over relational considerations. Statistics show that approximately 40 percent of marriages ending in divorce do so after 10 years, meaning a 10-year sunset clause would provide no protection for nearly half of divorcing couples.
Alternative to Sunset Clauses: Scheduled Reviews
Rather than including a sunset clause, some couples opt for scheduled review provisions. Under this approach, the prenup remains in effect indefinitely but requires the parties to meet (often with their attorneys or a mediator) at specified intervals to discuss whether modifications are appropriate. This structure maintains protection while acknowledging that circumstances change over time.
Drafting Best Practices for Florida Sunset Clauses
Careful drafting of sunset clause language is essential to avoid disputes about interpretation or enforceability during divorce proceedings.
Specify the Exact Trigger
Vague language creates litigation risk. Instead of stating "this agreement expires after a reasonable period of time," use precise language such as: "This Agreement shall automatically terminate and become void on the tenth (10th) anniversary of the date of marriage, which date shall be calculated from the date appearing on the parties' Certificate of Marriage issued by the State of Florida."
Define the Scope of Termination
Clearly state whether the sunset clause terminates the entire agreement or only specific provisions. Sample language for a partial sunset: "Sections 4 through 7 of this Agreement, pertaining solely to spousal support, shall terminate on the fifteenth (15th) anniversary of the date of marriage. All other provisions of this Agreement shall remain in full force and effect indefinitely."
Address Revival and Amendment
Include language addressing whether the agreement can be revived after expiration. Standard provision: "Once this Agreement expires pursuant to Section 12, it may not be revived or reinstated except by a new written agreement executed with all formalities required by Florida law for premarital or marital agreements."
Consider Partial Divorce Scenarios
Florida permits legal separation, and some couples file for divorce, reconcile, and later divorce again. Address these scenarios explicitly: "The sunset period shall be calculated based on the parties' continuous marriage. Any period during which the parties are subject to a pending dissolution action that is subsequently dismissed shall not toll or extend the sunset period."
What Happens When a Florida Sunset Clause Triggers
When a sunset clause in a Florida prenuptial agreement triggers, the expired provisions no longer govern the parties' rights. Instead, Florida's default statutory framework applies to matters previously covered by the prenup.
Property Division After Expiration
Once a property division sunset clause expires, Fla. Stat. § 61.075 governs the distribution of marital assets and liabilities. Courts apply the equitable distribution framework, which begins with a presumption of equal (50/50) division but allows for unequal distribution based on factors including: the contribution of each spouse to the marriage, the economic circumstances of each party, the duration of the marriage, any interruption of personal careers or educational opportunities, and the contribution of one spouse to the personal career or educational opportunity of the other.
Alimony After Expiration
If an alimony waiver or limitation expires, Florida's alimony statute at Fla. Stat. § 61.08 governs. The court considers factors including the standard of living established during the marriage, the duration of the marriage, the age and physical and emotional condition of each party, the financial resources of each party, and the contribution of each party to the marriage. Following Florida's 2023 alimony reform, durational alimony is now the primary form of support, with bridge-the-gap and rehabilitative alimony available in appropriate circumstances.
Florida Divorce Process After Prenup Expiration
Couples divorcing after their sunset clause has triggered follow the standard Florida dissolution process, with property and support issues resolved under default state law rather than their prenuptial agreement.
Filing Requirements
Under Fla. Stat. § 61.021, at least one spouse must have resided in Florida for six continuous months before filing. Residency may be proven with a valid Florida driver's license, voter registration card, Florida identification card, or testimony or affidavit from a corroborating witness. The filing fee is $408 (as of March 2026), though this varies slightly by county from $401 in Broward County to $409 in Miami-Dade County. Verify current fees with your local clerk before filing.
Waiting Period
Under Fla. Stat. § 61.19, no final judgment of dissolution may be entered until at least 20 days after filing the original petition. This 20-day period is among the shortest waiting periods in the nation compared to California's 6-month waiting period. The court may waive this period upon showing that injustice would result from the delay, such as an imminent military deployment.
Timeline Expectations
An uncontested Florida divorce with full agreement on all issues typically takes 4 to 8 weeks from filing to final judgment. Contested divorces involving disputes over property division or alimony (more likely when a prenup has expired) may take 6 to 18 months depending on the complexity of issues and court schedules.
H2: Frequently Asked Questions About Sunset Clause Prenups in Florida
Do prenuptial agreements expire automatically in Florida?
No, Florida prenuptial agreements do not expire automatically under state law. A prenup remains in effect indefinitely until formally revoked or amended in writing by both parties unless the agreement contains a sunset clause specifying an expiration date or triggering event. Without such a clause, the prenup governs property division and alimony regardless of how long the marriage lasts, even if the couple divorces after 30 or 40 years together.
What is the most common duration for a sunset clause in Florida prenups?
The 10-year sunset clause is the most commonly selected duration, appearing in approximately 40 percent of prenuptial agreements that include sunset provisions. Other popular durations include 5 years (common in second marriages), 15 years, and 20 years. Roughly 10 to 15 percent of all prenuptial agreements nationwide include some form of sunset provision, meaning the vast majority of prenups are drafted to last indefinitely.
Can a sunset clause apply only to alimony and not property division?
Yes, Florida law permits partial sunset clauses that expire only specific provisions while keeping others in effect. A prenup might include a 10-year sunset clause for alimony waivers while maintaining indefinite protection for separate property characterization. This allows couples to create graduated agreements recognizing that a spouse's entitlement to support may increase with marriage duration while still protecting assets brought into the marriage.
What happens if we divorce one month before our sunset clause triggers?
If you divorce before the sunset clause triggers, the full prenuptial agreement remains in effect and governs property division, alimony, and all other covered matters. Timing can be critical; a divorce filed 11 months into a 10-year marriage versus 10 years and 1 day could produce dramatically different financial outcomes. Courts apply the sunset clause as written without judicial modification based on proximity to the expiration date.
Can a Florida court refuse to honor a sunset clause?
Florida courts generally enforce sunset clauses when the underlying prenuptial agreement meets the requirements of Fla. Stat. § 61.079. However, a court may decline enforcement if the agreement was involuntary, procured through fraud or duress, unconscionable when executed without adequate disclosure, or against public policy. Courts also retain authority to provide some alimony despite a waiver if enforcement would leave a spouse dependent on public assistance under Fla. Stat. § 61.079(7)(a).
Can we extend or revive a prenup after the sunset clause expires?
Once a sunset clause triggers and the prenup expires, it cannot be automatically revived. However, under Fla. Stat. § 61.079(5), married parties may execute a new postnuptial agreement with all required formalities to establish new terms going forward. This new agreement must be in writing, signed by both parties, and meet the same voluntariness and disclosure standards as the original prenup. The revival must be proactive; couples cannot retroactively restore expired provisions.
How do sunset clauses interact with Florida's equitable distribution laws?
When a sunset clause triggers and expires property division provisions, Fla. Stat. § 61.075 governs asset distribution. Florida courts begin with a presumption of equal 50/50 division of marital assets and liabilities, then consider statutory factors to determine whether unequal distribution is appropriate. Assets that were protected as separate property under the expired prenup become subject to equitable distribution analysis, potentially converting them from 100 percent protected to subject to division.
Should I include a sunset clause in my Florida prenup?
The decision depends on your specific circumstances. Sunset clauses may be appropriate if you have a significant age gap with your spouse, are in a second marriage protecting children from a prior relationship during early years, or want to reward long-term commitment with greater financial sharing. However, sunset clauses may be inadvisable if you are protecting significant generational wealth, own a business expected to appreciate substantially, or have experienced costly divorces previously. Approximately 85 to 90 percent of couples opt against including sunset clauses, preferring indefinite protection with the option to amend.
What is the difference between a sunset clause and a marital agreement amendment?
A sunset clause is a self-executing provision that automatically triggers without any action by either party when the specified date arrives or event occurs. An amendment requires both parties to execute a new written agreement modifying the original terms under Fla. Stat. § 61.079(5). Sunset clauses provide automatic adjustment based on predetermined criteria, while amendments require ongoing mutual agreement and documentation. Couples who want flexibility without automatic changes should consider scheduled review provisions rather than sunset clauses.
Can a sunset clause be challenged as unconscionable in Florida?
A sunset clause itself is rarely challenged as unconscionable because it typically benefits the less-wealthy spouse by limiting the duration of asset protection. However, the underlying prenup may be challenged under the Casto v. Casto standard requiring the agreement to be "shockingly unfair" when executed. Including a sunset clause can actually strengthen enforceability by demonstrating the wealthier spouse did not intend permanent one-sided protection. The clause shows the parties anticipated that financial arrangements should evolve with the marriage.
Author: Antonio G. Jimenez, Esq., Florida Bar No. 21022
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