Florida Prenups for Foreign Nationals and K-1 Fiancé(e) Visa Couples (2026)

By Nadia Pazos, Family Law Attorney, Pazos Law Group · Updated September 7, 2026

Florida’s prenup statute does not impose a citizenship requirement. International couples may still need to coordinate the K-1 timeline, any federal I-864 obligation, language access, foreign assets, governing law, and execution formalities.

Quick Answer

Can a foreign national sign a Florida prenup — and should a K-1 couple get one?

A foreign national can sign a written premarital agreement; § 61.079(3) does not require citizenship or Florida residency. Whether a prenup is appropriate depends on the couple’s facts. K-1 couples should begin early enough for translation, disclosure, separate advice, and negotiation. The Eleventh Circuit held in Belevich v. Thomas that federal law controls and the listed terminating events are exclusive; divorce is not one of them. The Ninth Circuit separately enforced I-864 support after a divorce despite a premarital support waiver in Erler v. Erler.

No Citizenship or Residency Requirement in § 61.079

The formalities subsection of Fla. Stat. § 61.079 is two sentences: “A premarital agreement must be in writing and signed by both parties. It is enforceable without consideration other than the marriage itself.” (§ 61.079(3)). It does not require U.S. citizenship, lawful permanent residence, any particular visa, a Social Security number, or physical presence in Florida — the signer can be in Bogotá, Caracas, São Paulo or Manila. See our companion page on signing outside Florida.

What the statute does demand is what it demands of everyone: voluntary execution, no fraud, duress, coercion or overreaching, and — if the agreement was unconscionable when made — fair and reasonable financial disclosure. § 61.079(7)(a). Each of those requirements has an international twist, covered below.

The K-1 Problem: a 90-Day Clock Running Against Voluntariness

A K-1 fiancé(e) visa admits a foreign national to the United States on the condition of marrying the petitioning U.S. citizen within 90 days of admission. 8 U.S.C. § 1184(d). If the marriage does not happen, the K-1 holder must depart; there is no extension.

Now put a prenup inside that window. An agreement first presented in week ten — to a fiancé(e) who has quit a job, given up a lease, and crossed an ocean, and who faces departure if the wedding is called off — is close to a law-school hypothetical on duress and overreaching under § 61.079(7)(a) and Casto v. Casto, 508 So. 2d 330 (Fla. 1987). The imbalance of leverage is structural: one party’s ability to remain in the country depends on the other’s willingness to proceed.

The fix is sequencing:

Best: negotiate and sign before the fiancé(e) travels — § 61.079 imposes no requirement that signing occur in the U.S.
Good: sign in the first weeks after arrival, leaving real time before the wedding date.
Risky: a draft that first appears days before the ceremony, late in the 90-day window.

The I-864 Affidavit of Support: Why a Prenup Should Not Assume a Waiver

When the marriage leads to a green-card application, the U.S.-citizen spouse ordinarily signs Form I-864, a contract with the federal government promising to maintain the immigrant at 125% of the federal poverty guidelines. The obligation is statutory — 8 U.S.C. § 1183a — and the sponsored immigrant can sue to enforce it. It ends only on the events listed in the statute (such as naturalization, 40 quarters of work, departure with abandonment of residence, or death) — divorce is not on the list.

The Eleventh Circuit, which covers Florida, held in Belevich v. Thomas, 17 F.4th 1048 (11th Cir. 2021), that federal law controls the I-864 obligation and that the statute, regulation, and affidavit identify the exclusive terminating events. Belevich did not decide a prenup waiver, but its reasoning leaves no room to treat divorce or an unlisted state-law defense as a terminating event. The Ninth Circuit directly addressed a premarital support waiver in Erler v. Erler, 824 F.3d 1173 (9th Cir. 2016), and still enforced the I-864 after divorce. A Florida prenup should therefore be drafted around the federal obligation, not promise that it disappears.

Good drafting treats the two systems separately: the prenup governs Florida rights — equitable distribution, alimony under state law, elective share — while acknowledging that any federal I-864 obligation stands on its own. That honesty also protects the agreement itself from an unconscionability attack.

Language, Translation, and Understanding What You Sign

Nothing in § 61.079 requires the agreement to be in the signer’s native language. But voluntariness (§ 61.079(7)(a)1.) and overreaching (Casto) are judged by real-world understanding. An agreement in dense English legalese, signed quickly by someone who negotiates life in Spanish or Portuguese, hands that signer a ready-made challenge.

Practical protections that also make the agreement fairer:

A professional written translation of the full agreement and the disclosure schedules;
Independent counsel for the foreign fiancé(e) — ideally bilingual, so advice is given in the language the client actually thinks in;
Time. Weeks, not days, between first draft and signature;
A recital — true, not boilerplate — describing the translation provided and counsel consulted.

Pazos Law Group practices in English and Spanish; agreements and consultations are available in both.

Disclosing Assets Across Borders (§ 61.079(7)(a)3.)

Under § 61.079(7)(a)3., unconscionability at execution must be combined with all three statutory disclosure conditions. Clear schedules should identify material foreign real estate, businesses, accounts, and financial obligations with reasonable supporting information; translated documents may be useful when a party or counsel cannot review the originals.

Foreign Assets, Choice of Law, and Mirror Agreements

§ 61.079(4)(a) lets the parties contract about property “whenever and wherever acquired or located,” and § 61.079(4)(a)7. authorizes a choice-of-law clause. A Florida court will apply that framework. A court in the couple’s other country will not be bound by it, and civil-law jurisdictions often run marital property through notarial regimes rather than common-law contracts. Where either spouse keeps citizenship, real estate, or realistic return plans abroad, coordinated local-counsel advice — sometimes a mirror agreement or regime election — is the complete answer. See our page on foreign prenups in Florida for the reverse problem, and marrying abroad if the wedding itself is overseas.

What the Other Country Requires

The section above says a foreign court will not be bound by a Florida choice-of-law clause. This is what those countries require instead. Where the non-citizen spouse holds citizenship in one of them, or property sits there, that country applies its own rules of form — and several will not recognise an agreement that satisfies Florida and nothing else.

No treaty requires any country to recognise a Florida prenup. The Hague Convention of 14 March 1978 on the Law Applicable to Matrimonial Property Regimes has three contracting parties — France, Luxembourg and the Netherlands. The United States is not one of them, and never has been. Recognition abroad therefore depends on that country’s own domestic law, one country at a time.

Form requirements that a Florida-only agreement can fail. Each row links to the governing text.
Country	What that country requires of a marital agreement	If the form is missed
Spain	Capitulaciones matrimoniales must be executed as a public deed before a notary — Código Civil art. 1327 — and filed with the Civil Registry to be effective against third parties.	No validity in Spain as a capitulación.
Germany	An Ehevertrag must be recorded by a civil-law notary with both spouses present at the same time — BGB § 1410.	Void for want of form.
Philippines	A marriage settlement must be in writing, signed, and executed before the celebration of the marriage — Family Code art. 77 — and registered in the local civil registry and the registries of property to bind third persons.	No post-wedding cure. A postnuptial has no equivalent.
Indonesia	A perjanjian perkawinan is made as a notarial deed and reported to the Civil Registry. Since Constitutional Court decision 69/PUU-XIII/2015 it may be made before, at, or during the marriage.	Property stays joint — see the land point below.
Netherlands France · Luxembourg	The only three states bound by the 1978 Hague Convention, under which spouses may designate the law governing their matrimonial property.	A designation clause has treaty footing here that it lacks elsewhere.

Indonesia: the agreement is what lets an Indonesian spouse keep the land. Where an Indonesian citizen marries a foreign national with no agreement separating property, the joint-property rule gives the foreign spouse an interest in land that Indonesian law does not permit a foreigner to hold. Under art. 21 of the Basic Agrarian Law (No. 5 of 1960), freehold acquired in that position must be relinquished within one year or it passes to the state. A marriage agreement separating property is the mechanism that preserves the Indonesian spouse’s own title.

What this means in practice. Two documents, not one: a Florida agreement drafted to § 61.079, and, where the other country demands its own form, a parallel agreement executed there — commonly called a mirror agreement — drafted so the two do not contradict each other. Pazos Law Group drafts and reviews the Florida side and coordinates with counsel in the other country; we do not opine on foreign law.

Death-Time Rights: the Two-Witness Rule

If the agreement waives elective-share, homestead, or other death-time spousal rights, § 61.079(10) preserves the formalities of § 732.702. When that section applies, the waiving party signs in the presence of two subscribing witnesses. International execution may also require advice about the law of the place of signing and any other country where recognition matters.

International-Couple Prenup Checklist

Start early — before the K-1 fiancé(e) travels, or immediately after arrival (8 U.S.C. § 1184(d)).
Clear schedules of material worldwide assets and financial obligations, with translations where useful (§ 61.079(7)(a)3.).
Professional translation of the agreement into the foreign fiancé(e)’s language.
Independent — ideally bilingual — counsel for each party.
Draft around the I-864, never against it (8 U.S.C. § 1183a; Belevich; Erler).
Florida choice-of-law clause (§ 61.079(4)(a)7.); consider mirror advice in the other country.
Execution that accounts for § 61.079, any applicable § 732.702 witness requirement, and the law of the place of signing.

Frequently Asked Questions

Can a non-U.S. citizen sign a Florida prenuptial agreement?

Yes. Fla. Stat. § 61.079(3) requires only that a premarital agreement be in writing and signed by both parties. Nothing in § 61.079 requires U.S. citizenship, a green card, a Social Security number, or Florida residency. A foreign national on any visa — or abroad and not yet in the United States — can sign.

When should a K-1 couple sign the prenup?

Before the foreign fiancé(e) travels, if possible. A K-1 visa holder must marry the petitioning U.S. citizen within 90 days of admission (8 U.S.C. § 1184(d)). Signing early — ideally while both parties still have time to negotiate, translate, and consult independent counsel — is the best protection against a later claim of duress or overreaching under § 61.079(7)(a).

Can a prenup waive the I-864 Affidavit of Support obligation?

No reliable waiver exists. The I-864 is a contract with the federal government under 8 U.S.C. § 1183a, enforceable by the sponsored immigrant. The Eleventh Circuit held in Belevich v. Thomas, 17 F.4th 1048 (11th Cir. 2021), that federal law controls and that the listed terminating events are exclusive; it did not decide a prenup waiver. The Ninth Circuit directly enforced I-864 support after divorce despite a premarital support waiver in Erler v. Erler, 824 F.3d 1173 (9th Cir. 2016). A Florida prenup should be drafted around the I-864, not promise that it disappears.

Does the prenup need to be translated?

Florida law does not impose a universal translation requirement. A party’s ability to understand the proposed agreement can still be relevant to voluntariness, fraud, duress, coercion, or overreaching under § 61.079(7)(a). When a party is not comfortable reading legal English, a professional translation and separate advice in a language the person understands can create a clearer record; neither step guarantees enforcement.

Does marrying a U.S. citizen give the foreign spouse rights a prenup cannot change?

Two systems apply. Florida marital rights — equitable distribution, alimony, elective share — can largely be modified by agreement under § 61.079(4). The federal I-864 support obligation under 8 U.S.C. § 1183a cannot be reliably waived by prenup (Erler). Immigration status itself is federal and unaffected by the prenup.

What if my fiancé(e)'s assets are all in another country?

Material foreign real estate, businesses, accounts, and financial obligations should be identified clearly. Section 61.079(7)(a)3. addresses disclosure as part of the statute’s conjunctive unconscionability ground. Reasonable supporting information and translations can create a clearer record.

Will a Florida prenup be enforced in my home country?

Not automatically. Section 61.079(4)(a)7. allows a choice-of-law provision, but its effect depends on the forum and applicable conflict-of-laws rules. Couples with substantial ties or property abroad should obtain advice from counsel in the relevant country about recognition and local formalities.

Official Sources & Related Reading

The information on this page is for general informational purposes only and does not constitute legal advice, and it does not address the law of any state or country other than Florida except as expressly noted. Reading or sharing this content does not create an attorney-client relationship with Pazos Law Group. Immigration law is federal and highly fact-specific; consult an immigration attorney about visa matters. Florida law and the application of statutes change over time; please consult a licensed Florida attorney about your specific situation, and counsel licensed in any other state or country whose law may apply.