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Prenups for Business Owners

Marry without a prenup and your spouse can gain a claim on the business you built, even on its growth during the marriage.

Protect the company Flat fee from $2,450 · Review from $750. What each fee covers. Business succession

Quick Overview

A business in your name alone is still exposed in marriage. If you owned it before the wedding it may be separate, but the growth during the marriage is generally marital and divisible in divorce, and at death a surviving spouse can claim about 30% of your estate, including the company. A Florida prenup keeps the business and its appreciation separate. It comes down to coordinating that prenup with your buy-sell and succession plan.

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Below, we walk through the 3 issues that decide whether this is the right move for you. Jump to any one.

  1. How Marriage Reaches Your Business Even a company in your name alone is exposed, and at death a spouse can reach about 30% of your estate. The trap is the growth during marriage.
  2. What a Prenup Does for It A prenup keeps the business and its appreciation on the separate side and waives spousal claims. It also protects your partners from an unwanted co-owner.
  3. It Works With Your Buy-Sell and Succession Plan The prenup is one of three pieces. Drafted together they keep the company out of divorce court and probate. Drafted piecemeal, they contradict each other.

That’s the quick version. The details below are what decide your situation, and where the costly mistakes hide.

How Marriage Reaches Your Business

Even a business in your name alone is exposed. If you owned it before marriage it may be separate, but the increase in its value during the marriage, especially growth that came from your own work, is generally marital and divisible in a divorce. And at death, a surviving spouse’s elective share reaches the business as part of your estate. Either way, the company you built can be dragged into a personal fight.

What a Prenup Does for It

A prenup keeps the business, and its appreciation, on the separate side of the line, and waives the spousal claims that would otherwise reach it at divorce or death. For an owner with partners, it also protects them, because nobody wants a co-owner’s ex-spouse or heirs holding a stake.

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It Works With Your Buy-Sell and Succession Plan

These pieces work as a set. The prenup keeps the interest separate, the buy-sell agreement controls what happens to it on death, disability, or divorce, and your trust or will routes ownership to the people you choose. Drafted together, they keep the company out of divorce court and probate. See business succession planning for the full picture, and does a prenup apply at death for how the waiver of a spouse’s death rights works. An agreement meant to protect a company has to survive a challenge, which is covered in what makes a prenup invalid.

Frequently Asked Questions

Can My Spouse Claim Part of My Business in a Florida Divorce?

They can claim part of its value, even if the business is in your name alone. The business itself may be separate property if you owned it before marriage, but the increase in its value during the marriage, especially if it came from your work (active appreciation), is generally marital and subject to division. A prenup is how you keep the business, and its growth, on the separate side of the line.

What Happens to My Business if I Die Without a Prenup?

Your surviving spouse can claim about 30% of your estate (the elective share), and the business is part of that estate. That can force a sale, a buyout, or hand a co-ownership stake to a spouse who has no role in the company, next to your partners or your children. A prenup that waives or limits those rights, coordinated with a buy-sell and your succession plan, prevents it.

How Does a Prenup Work With a Buy-Sell and Succession Plan?

They work as a set. The prenup keeps the interest separate and waives the spousal claims; the buy-sell controls what happens to the interest on death, disability, or divorce; and your trust or will routes ownership to the people you choose. Drafted together, they keep the company out of both divorce court and probate. Drafted piecemeal, they contradict each other.

I Already Own the Business and I’m Married. Too Late?

No. A postnuptial agreement can do the same job after the wedding, and it is often prompted by exactly this situation. The business grew, and you want to protect it and your partners. With full disclosure and independent counsel, it is enforceable.

Does a Prenup Have to Be Written by a Lawyer?

No. Florida requires only that a prenup be in writing and signed by both people, plus two subscribing witnesses for any waiver of rights at death signed in Florida. A business owner who writes his own agreement usually leaves out the valuation, the disclosure and the separate lawyer for the other spouse, which are the pieces that keep a prenup from being set aside when the company is worth fighting over.

What Does a Prenup Protect You From?

A prenup can protect you from a division of separate property and its growth in a divorce, from a spouse’s debts, from an alimony claim, and from a surviving spouse’s claims at death, including 30 percent of the estate and rights in the home. For a business owner it also protects partners from a former spouse or a surviving spouse ending up with an ownership stake.

How to Get a Prenup After Marriage?

After the wedding, the same agreement is called a postnuptial agreement. It can waive the same rights and set the same terms for the business. The difference is that Florida requires each spouse to make a fair disclosure of their estate for a waiver signed after marriage, so a business valuation is usually part of the package.

What Type of Lawyer Does Prenups?

Family-law lawyers draft prenups with divorce in mind, and estate-planning lawyers draft them with death in mind. A business owner needs both halves covered, because most agreements do their work at a death, and the waiver of death rights has formalities of its own. Look for a lawyer who will coordinate the prenup with the buy-sell agreement and the will or trust, and make sure the other spouse has a separate lawyer.

Will My Company’s Financials Become Public Because of the Prenup?

They can, if the agreement is ever litigated. A prenup that lands in a divorce case goes into the court file with everything attached to it, and court files are public records in Florida. For the owner of a closely held company, that can mean revenue, valuations, and account details sitting where competitors can read them. The drafting fix is to keep the detailed financial disclosure in a separately kept volume that the agreement references, with signed receipts showing your future spouse received and reviewed it, instead of stapling the statements to the agreement itself. We set prenups up that way for business owners from the start.

Updated on October 6, 2026. Reviewed by Kevin D. Klagge, Esq., Fla. Bar No. 99502. General information about Florida law, not legal advice. Each spouse should have independent counsel. Do not send confidential information until we have agreed to represent you.

More Guides on Florida Prenuptial Agreements

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