Do You Need a Prenup for a K-1 Fiancé Visa Marriage in Florida?

How Does the 90-Day K-1 Deadline Affect a Prenup?

A K-1 visa lets the fiancé(e) of a U.S. citizen enter the country to marry. Under the federal statute and the USCIS rules, the couple has 90 days from the fiancé(e)’s admission to marry each other. K-1 status expires at the end of those 90 days and cannot be extended, and a fiancé(e) who has not married by then is generally expected to leave the United States. After the wedding, the new spouse applies for a green card from inside the country.

Florida’s premarital agreement law sets no minimum number of days between signing and the wedding. A prenup only has to be in writing and signed by both people, and it takes effect on the marriage. What Florida does allow is a challenge. A spouse who proves the agreement was not signed voluntarily, or was the product of fraud, duress, coercion or overreaching, can have it set aside without proving that a single term was unfair.

The K-1 clock is the fact that turns an ordinary prenup into a target. A fiancé(e) who refuses to sign may lose the wedding, the visa and the right to stay in the country, all inside the same few weeks, and a lawyer attacking the agreement years later will put those facts in front of the judge first. The timing problem is the same one the Florida prenup guide describes for any couple, where an agreement handed over in final form at 11:30 p.m. the night before a Las Vegas wedding was set aside in 2013. A K-1 couple carries a second deadline on top of the wedding date.

Practice pointer. Date the first written mention of the prenup and keep it in the file. The gap between that date and the signing is the first thing a challenger measures, and for a K-1 couple it should start months before the fiancé(e) boards a plane.

A Timeline That Holds Up

A timeline that holds up has four steps, and the first one happens before the visa interview.

1. Raise the prenup early, in writing. The U.S. citizen tells the fiancé(e) about the prenup while the petition is pending, with a short summary of what it will cover. The message becomes the date a court later looks for.
2. Exchange disclosure and a translated draft before travel. Each of you prepares a schedule of what you own and owe, including accounts and property abroad. The draft goes to the fiancé(e) in English and in a translation into the fiancé(e)’s first language, and the fiancé(e)’s own Florida lawyer can advise by video call from abroad.
3. Sign early in the 90 days. The signing happens in Florida soon after arrival, in front of two witnesses and a notary, with weeks left before the ceremony. The two witnesses are what Florida requires for the waiver of rights at death, which most prenups contain.
4. Get the marriage license with the calendar in mind. A Florida marriage license is valid for 60 days after it is issued. For Florida residents who have not completed a premarital preparation course, the clerk delays the license’s effective date by 3 days, and the statute gives non-Florida residents an exception. The license is a second clock running inside the K-1 clock.

Some couples cannot meet that schedule. A rushed prenup is worse than none, because it gives one spouse a document the other can attack while both believe the question is settled. The honest alternative is to marry without a prenup and sign a postnuptial agreement once the new spouse is settled, accepting that Florida asks more of a postnup, including fair disclosure of each spouse’s estate for any waiver of rights at death.

Translation and a Lawyer for Each of You

Florida does not require a translation or a lawyer for either side, and the Florida case that matters most here shows why both are worth paying for. In 2001 a 41-year-old airline pilot from the Florida Keys met an 18-year-old medical student in Cali, Colombia, through a matchmaking website. Neither spoke the other’s language well, so the courtship ran through a translator and a handheld translation device. The pilot adapted a form prenup he had obtained from a co-pilot. The fiancée took it to a Colombian lawyer, who signed a certificate in the agreement saying she knew Florida law and had advised the fiancée. The lawyer later admitted she did not know Florida law and had only arranged the translation. The fiancée collected the Spanish version on August 29, signed both versions on August 30 without reading them, and married on August 31, after being told that signing was a requirement for her immigration.

Sixteen years and five children later, the wife asked the trial court to set the agreement aside, and the court did, finding duress and coercion. The Third District Court of Appeal affirmed on the coercion finding in 2021, writing that “Contrary to what Husband told Wife, immigration to the United States is not conditioned on the execution of a prenuptial agreement.” The full court later split 5 to 5 on whether to rehear the case, so the panel opinion stands.

Practice pointer. Give the fiancé(e) a translation prepared well before the signing, a Florida lawyer who explains the agreement in a language the fiancé(e) reads, and a recital in the agreement that says both things happened. Never tell a fiancé(e) that a prenup is an immigration requirement, because it is not one.

Can a Prenup Waive the I-864 Affidavit of Support?

A common question I hear from the U.S. citizen is, “If my fiancée waives alimony in the prenup, does that cancel the I-864?” The answer is no. When the new spouse applies for a green card, the U.S. citizen who filed the fiancé(e) petition must sign Form I-864, the affidavit of support. The federal regulation says that signing the affidavit “creates a contract between the sponsor and the U.S. Government for the benefit of the sponsored immigrant,” and the sponsored immigrant can sue to enforce it. In the affidavit the sponsor promises to keep the immigrant at an income of at least 125 percent of the federal poverty guidelines, and a government agency that provides certain means-tested benefits to the immigrant can ask the sponsor to repay them.

The regulation lists the events that end the obligation. The obligation ends when the immigrant becomes a U.S. citizen, is credited with 40 qualifying quarters of work, stops being a permanent resident and leaves the country, receives a new grant of adjustment in removal proceedings, or dies, and also when the sponsor dies. Divorce is not on that list, and the USCIS instructions for the form say so directly. “Divorce does not end the sponsorship obligation.”

A premarital waiver of support is not on the list either. The Ninth Circuit decided the question in 2016 on a premarital agreement that said neither spouse would be entitled to alimony or support, and held that “under federal law, neither a divorce judgment nor a premarital agreement may terminate an obligation of support.” The Eleventh Circuit, whose decisions bind the federal courts in Florida, held in 2021 that “federal law, not state contract law, governs this question” and refused to let a sponsor escape on defenses the statute and regulation do not list. The Eleventh Circuit case did not involve a prenup.

A Florida appeals court has dealt with an I-864 inside a Florida divorce once, in 2008, and the case had no prenup. The marriage lasted about a year. The trial court found the husband liable on the affidavit and awarded no damages, because the wife could not prove her income had fallen below 125 percent of the poverty level, and it gave her $9,000 in lump-sum alimony under Florida law to cover about three months of rent and living expenses. The Third District affirmed and noted that the affidavit’s “enforceability survives divorce.” No Florida appellate court has yet decided an I-864 claim against a signed prenup, and the courts elsewhere that have decided it all point the same way.

Two consequences follow for a K-1 couple. A Florida prenup can still waive or limit alimony under Florida law, and a court will read that waiver like any other. The federal floor sits underneath it, so a sponsor who earns well and marries someone with no income in the United States should expect to owe the shortfall up to 125 percent of the poverty guidelines until one of the listed events happens, whatever the prenup says about alimony.

How We Draft Around the I-864

The prenup names the affidavit of support and states that nothing in the agreement waives or limits it. An agreement that pretends to waive the federal obligation invites a court to question everything else in it, while an agreement that acknowledges the obligation shows both people understood the bargain. The agreement can then say how any payment the sponsor makes under the affidavit relates to anything the prenup itself provides, so the same dollar is not argued about twice.

Florida’s own statute points the same way. Where a prenup eliminates spousal support and that leaves one spouse eligible for public assistance at separation or divorce, a Florida court may require the other spouse to pay support to the extent needed to avoid that eligibility, whatever the agreement says. A complete waiver of alimony for a spouse with no income of their own is therefore the clause most likely to give way.

Three more terms come up in nearly every K-1 prenup. The first is the home, often bought by the U.S. citizen before the petition was filed, which the agreement keeps separate in words that cover growth paid for with marital money. The second is the waiver of rights at death, the 30 percent elective share and homestead above all, which needs two subscribing witnesses. The third is a schedule of the fiancé(e)’s assets abroad, because a disclosure that leaves out a foreign apartment or pension is the opening for a later attack.

Kevin drafts the Florida prenup and coordinates with your immigration lawyer, who handles the petition, the affidavit and every question about status. Questions about the law of your fiancé(e)’s home country go to a lawyer licensed there, and prenups for foreign nationals covers the disclosure of assets abroad and the choice of law in more detail.

What It Costs

Drafting a prenup for one spouse is a flat fee from $2,450. The fee covers the first draft, up to two rounds of revisions with the other spouse’s lawyer, the financial disclosure schedules, and a signing with two witnesses and a notary. Reviewing a prenup the other side drafted is a flat fee from $750, and a postnup for a couple already married is a flat fee from $2,950. More detail is on the prenup review page.

Posted fees are honored for 90 days from the posted date (October 6, 2026). Certified translation, the fiancé(e)’s own lawyer and the immigration lawyer’s fees are separate, and government costs are passed through at cost. A challenge to an existing agreement, an I-864 enforcement claim and any divorce litigation are quoted per matter and never carry a flat fee.

Frequently Asked Questions

Common Situations

The citizen who owns a business. A Tampa business owner files a K-1 petition for a fiancée abroad. The prenup is drafted while the petition is pending, the fiancée’s Florida lawyer advises her by video with a translation in hand, and the couple signs three weeks after her arrival. The agreement keeps the business separate, limits alimony, and states that the I-864 obligation stands on its own terms.

The fiancé who owns property at home. A fiancé arrives on a K-1 visa owning an apartment and a pension in his home country. Both go on his disclosure schedule with their values and the date of the exchange rate used, and the prenup keeps them separate. Questions about how his home country would treat the apartment go to a lawyer there.

The couple who ran out of time. The visa arrived late and the wedding is three weeks away. The couple marries without a prenup and signs a postnup four months later, with full disclosure on both sides and two witnesses for the waiver of rights at death.

Sources of Law

• K-1 visa: 8 U.S.C. §1184(d)(1) (marriage within ninety days after arrival; departure if the marriage does not occur within three months after admission); USCIS, Visas for Fiancé(e)s of U.S. Citizens (90 days to marry; K-1 status expires after 90 days and cannot be extended; Form I-485 after the marriage). (Read 2026-10-06.)
• Affidavit of support: 8 U.S.C. §1183a; 8 C.F.R. §213a.2(b)(1) (the person who filed the fiancé(e) petition must execute the affidavit), (d) (the affidavit “creates a contract between the sponsor and the U.S. Government for the benefit of the sponsored immigrant”; enforcement by the sponsored immigrant or a benefit-granting agency), (e)(2) (terminating events). eCFR text current to 2026-10-02, read 2026-10-06. USCIS, Instructions for Form I-864, edition 08/24/26 (125 percent of the Federal Poverty Guidelines; “Divorce does not end the sponsorship obligation.”), read 2026-10-06.
• Premarital agreements: Fla. Stat. §61.079(3) (writing signed by both parties), (5) (effective upon marriage), (7)(a) (not enforceable if not executed voluntarily or the product of fraud, duress, coercion or overreaching, or unconscionable with no fair disclosure, no written waiver and no adequate knowledge), (7)(b) (support may be required notwithstanding the agreement to the extent necessary to avoid eligibility for public assistance). Waiver of rights at death: Fla. Stat. §732.702(1) (two subscribing witnesses for waivers signed by Florida residents) and (2); §732.2065 (elective share of 30 percent). Marriage license: Fla. Stat. §741.04(5) (3-day delay for Florida residents without a premarital course; exception for non-Florida residents) and §741.041 (license valid 60 days). (2026 statutes.)
• Cases: Bates v. Bates, 345 So. 3d 328 (Fla. 3d DCA 2021) (No. 3D19-1884; agreement signed the day before a 2001 civil wedding in Colombia set aside for coercion), reh’g en banc denied (Fla. 3d DCA Aug. 31, 2022) (5 to 5; panel opinion stands); Flaherty v. Flaherty, 128 So. 3d 920 (Fla. 2d DCA 2013); Iannuzzelli v. Lovett, 981 So. 2d 557 (Fla. 3d DCA 2008) (I-864 enforced in a Florida dissolution; no damages proved; no prenup). Federal: Erler v. Erler, 824 F.3d 1173 (9th Cir. 2016); Belevich v. Thomas, 17 F.4th 1048 (11th Cir. 2021). Other states, persuasive only: Backman v. Backman, No. A22A0428 (Ga. Ct. App. June 28, 2022). Opinions read in full from the local CourtListener corpus. (retrieved 2026-10-06)

What a Waiver of Support Did Not Waive

The advice you will find on most sites is right in general and wrong in the situation that actually brings people to me. The general advice is that a prenup can waive alimony in Florida, and that is true. For a sponsor who signed an I-864, a Georgia case from 2022 shows the part the general advice leaves out.

An American man met a woman from Colombia on a dating site in 2011, visited her several times and proposed. In December 2012 they signed a prenup in which each of them released every claim to alimony, support, equitable distribution and attorney’s fees, child support excepted. The couple married in February 2013. The bride had no visa, so to bring her to the United States faster he signed an I-864 promising to support her. The wife became a permanent resident, the couple had two children, and in July 2018, two months after the second child was born, he filed for divorce. The trial court enforced the prenup and then, relying on the affidavit, ordered him to pay her $1,000 a month until the start of 2023.

The Georgia Court of Appeals agreed that neither the prenup nor the divorce had ended his promise to the federal government. The court then reversed the $1,000 award anyway. The wife was earning $2,610 a month, and 125 percent of the poverty line for a household of one was $1,329 a month, so there was no shortfall for him to cover.

My reading of that case is that both of them were partly right, and I have a few take-home points.

The first is that the waiver of support in a prenup and the I-864 run on separate tracks. The prenup did its job on alimony, and the affidavit survived next to it. Practice pointer. A sponsor should read the prenup and the affidavit together before signing either, and the prenup should say in plain words that it does not touch the affidavit.

The second is that the affidavit sets a floor rather than a salary. The sponsor owes the gap between the immigrant’s own income and 125 percent of the poverty guidelines for the immigrant’s household, and nothing when there is no gap. Practice pointer. Price the worst case before the wedding. For a spouse with no income, the gap is the full floor for as long as the obligation lasts, which can be ten years of work credits or until citizenship.

Avoid any clause that claims to waive the I-864. Every court I have read on the question refuses to enforce one, and the clause makes the rest of the agreement look careless.

An honest limit belongs here. The Georgia decision does not bind a Florida court, and no Florida appellate court has yet ruled on an I-864 claim against a signed prenup. The federal appeals courts that have ruled, including the circuit that covers Florida, all treat the affidavit as a federal obligation that state-law agreements do not reach.

Kevin D. Klagge, Esq., admitted in Florida since 2012. The cases described above are published decisions in other parties’ matters, not matters this firm handled, and past results do not guarantee a similar outcome.

Updated on October 6, 2026. Reviewed by Kevin D. Klagge, Esq., Fla. Bar No. 99502. General information about Florida law, not legal or immigration advice, and no attorney-client relationship is created. Immigration questions belong to your immigration lawyer. Do not send confidential information until we have agreed to represent you.