What Does Florida Require for a Prenup in 2026?

What are Florida's prenup requirements under Fla. Stat. § 61.079?

A valid Florida prenup needs exactly two things: it must be in writing, and both parties must sign it. No notary, no witnesses, and no payment between the parties is required. The marriage itself is the only consideration the statute demands.

These formalities come from Fla. Stat. § 61.079(3), Florida's version of the Uniform Premarital Agreement Act (UPAA). The statute applies to all proceedings under the Florida Family Law Rules of Procedure. Under § 61.079(5), the agreement becomes effective only upon marriage, meaning it has no legal force if the wedding doesn't happen.

The simplicity of these requirements is intentional. Florida law encourages couples to plan their financial partnership on their own terms, without procedural barriers. As Michael C. Cotugno, Esq., Managing Partner, Neptune Legal, puts it: "A premarital agreement doesn't have to be a wedge between partners or a necessary evil that protects assets at the expense of trust and intimacy."

That said, meeting the bare formalities is the floor, not the ceiling. Enforceability depends on additional factors (discussed below), including voluntary execution, fair disclosure, and the substance of the terms.

How does Florida's Uniform Premarital Agreement Act work?

Florida adopted its Uniform Premarital Agreement Act in 2007, codifying it as § 61.079. The statute provides the legal framework for every prenuptial agreement made in the state.

Under § 61.079(2), the statute defines two key terms:

• Premarital agreement: an agreement between prospective spouses, made in contemplation of marriage, and effective upon marriage.
• Property: broadly defined to include any interest (present or future, legal or equitable, vested or contingent) in real or personal property, tangible or intangible, including income and earnings, both active and passive.

This broad property definition means a Florida prenup can address nearly every financial interest a couple might have, from business equity and real estate to retirement accounts and future earnings.

Two important timing points to understand:

1. The agreement must be executed before the marriage.
2. It only becomes effective upon the marriage (§ 61.079(5)). If the couple never marries, the agreement has no legal effect.

A postnuptial agreement (signed after marriage) follows different rules and is not governed by § 61.079. Couples who want to create or modify financial terms after the wedding should work with an attorney to understand Florida's distinct postnuptial requirements.

What can and cannot a Florida prenup include?

A Florida prenup can address a wide range of financial and personal matters. Section 61.079(4)(a) lists eight categories of permitted subjects, and the list is deliberately broad. The one hard limit: a child's right to support may not be adversely affected (§ 61.079(4)(b)).

Here's what each category covers:

Spousal support and the 2023 alimony reform

Florida's 2023 alimony reform (SB 1416, amending § 61.08) changed the landscape for spousal support clauses in prenups. The available forms of alimony are now limited to bridge-the-gap, rehabilitative, and durational. Permanent alimony is no longer available. If your prenup addresses spousal support, it should reflect these current categories and their statutory limits.

The child support limit

No matter what a prenup says, it cannot reduce or eliminate a child's right to financial support. Courts will not enforce provisions that attempt to do so. Child support is determined by Florida's child support guidelines at the time of any proceeding, not by a prior agreement between the parents.

What makes a Florida prenup enforceable, and when can a court refuse?

Meeting the two writing-and-signature formalities gets your agreement through the door. Enforceability, however, depends on clearing the hurdles in § 61.079(7). A court can refuse to enforce a Florida prenup if the party challenging it proves any of the following:

1. Involuntary execution (§ 61.079(7)(a)1.): The challenging party did not sign the agreement voluntarily.
2. Fraud, duress, coercion, or overreaching (§ 61.079(7)(a)2.): The agreement was the product of improper pressure or deception.
3. Unconscionability plus inadequate disclosure (§ 61.079(7)(a)3.): The agreement was unconscionable when executed, and before signing, the challenging party:

• Was not provided a fair and reasonable disclosure of the other party's property or financial obligations;
• Did not voluntarily and expressly waive, in writing, the right to further disclosure; and
• Did not have, or reasonably could not have had, adequate knowledge of the other party's finances.

All three disclosure conditions (a, b, and c) must be met for the unconscionability defense to succeed. This means full written disclosure is not technically required if the other party already has adequate knowledge or expressly waives additional disclosure in writing. In practice, providing thorough disclosure is the simplest way to close off this challenge entirely.

Notarization and witnesses

Section 61.079(3) does not require notarization or witnesses for a basic Florida prenup. However, if your agreement waives elective-share rights, homestead rights, or other death-time interests, Florida's separate probate and property statutes may impose additional execution requirements. Consult with a qualified attorney if your prenup touches estate or homestead matters.

Best practices that strengthen enforceability

Three steps go beyond the statutory minimum but meaningfully reduce the risk of a later challenge:

• Full written disclosure schedules. Each party prepares and attaches a detailed schedule of assets, debts, and income. This directly addresses the § 61.079(7)(a)3. disclosure conditions.
• Independent counsel for each party. While not a formality required by § 61.079(3), independent counsel for each partner is highly recommended for an enforceable prenup. Separate attorneys help each person understand the terms and negotiate meaningfully.
• Meaningful review time. Giving both parties enough time to review disclosures, consult with counsel, and negotiate terms reduces claims of involuntariness or coercion. Signing an agreement the night before the wedding creates exactly the kind of pressure courts scrutinize.

When should you sign a prenup before a Florida wedding?

Sign early enough that both parties have genuine time to review, negotiate, and make informed decisions. Florida's statute does not set a minimum number of days before the wedding, but timing directly affects voluntariness claims.

Here's useful scheduling context:

• Florida's marriage license has a 3-day waiting period before the ceremony (waived for couples who complete a premarital preparation course).
• A Florida marriage license is valid for 60 days after issuance.

Neither of these timelines is a prenup deadline, but they frame the practical window. A reasonable approach is to begin the prenup process several months before the wedding. This allows time for:

1. Opening the financial conversation with your partner
2. Gathering and exchanging disclosure documents
3. Each party consulting with independent counsel
4. Drafting, reviewing, and negotiating terms
5. Signing the final agreement well before wedding-week stress

A lawyer-led process helps each party understand the terms, ask questions, and negotiate from an informed position. The goal is an agreement both partners enter knowingly and willingly, not one that's rushed or pressured.

How much does a Florida prenup cost in 2026?

There is no statutory fee or standard price for a Florida prenup. Cost depends on several variables, including whether each party needs full drafting or independent review, the complexity of assets and disclosures, the extent of negotiation, and how close you are to the wedding date.

Here's how to think about the cost structure:

Neptune offers a lawyer-led online prenup where each party can choose an independent attorney from the Neptune network. When both parties use Neptune-network lawyers, each has their own attorney working independently. This is not a DIY template; it's actual legal representation adapted for an online process.

Steps to plan a Florida prenup with your partner

Planning a prenup works best as a shared process. Here's a practical sequence:

1. Start the conversation early

Bring up the prenup as part of your broader financial planning, not as a last-minute demand. Frame it around clarity, shared expectations, and building a financial foundation together.

2. Exchange financial disclosures

Each partner prepares a detailed schedule of assets, debts, and income. Attach these to the final agreement. Thoroughness here directly supports enforceability under § 61.079(7).

3. Each party retains independent counsel

Independent legal advice helps each person understand the proposed terms, identify concerns, and negotiate changes. This step is a best practice, not a statutory formality, but it meaningfully strengthens the agreement.

4. Draft and negotiate terms

One attorney typically prepares the initial draft. The other party's attorney reviews it and proposes changes. This back-and-forth continues until both sides are satisfied.

5. Sign before the wedding

Once the terms are final, both parties sign the written agreement. Allow a comfortable buffer before the ceremony. The agreement becomes effective upon marriage.

Throughout this process, a qualified Florida family law attorney can advise on enforceability questions specific to your situation. No prenup comes with a guarantee of enforcement; courts evaluate agreements on a case-by-case basis. What you can do is follow the statute's requirements and best practices to give your agreement the strongest possible foundation.