For business owners planning an exit
How does a prenup treat the money from selling my business?
It depends on the piece. A sale rarely pays out as one lump sum, and the upfront payment, an earn-out, and any consulting income that comes with the deal are not automatically treated the same way. A prenup lets you define each piece in advance instead of leaving it for a court to sort out. Neptune is the lawyer-led online prenup service: both partners get their own lawyer for one flat fee.
Flat fee of $5,000 per couple. No payment to get started.
A sale is rarely one payment
Three pieces of a deal, three different questions
Business-sale disputes in divorce cases have turned on exactly this distinction. A deal structured with cash at closing plus a future earn-out is not one asset for characterization purposes. It is several, and each can be treated differently.
The upfront payment
The cash or stock paid at closing is usually the most straightforward piece to characterize. If the business itself was built during the marriage, courts have found the upfront sale payment to reflect the value of work already completed, which can make it easier to treat as tied to what came before the sale.
Earn-outs and deferred payments
Many deals include future payments tied to the company hitting performance targets after closing. Whether an earn-out is treated as compensation for the sale itself, or as pay for the seller’s work after the deal closes, has been directly litigated and courts have not landed on one uniform answer.
Seller financing and consulting fees
A buyer who pays part of the price over time, or a seller who stays on under a consulting agreement, creates an income stream that can look like either continued business income or a structured payout of the sale. How it is documented can shape how it is treated later.
A couple where one partner sells a company for cash at closing plus a two-year earn-out tied to revenue targets might find the upfront payment treated one way and the earn-out treated another, since the earn-out compensates in part for work performed after the sale closes. Rules for dividing property differ from state to state, and your attorney can review how these lines are drawn where you live.
Timing matters as much as structure
When the sale happens relative to the wedding
You sell before the wedding
Sale proceeds received and held separately before the marriage typically start as separate property, the same as any other premarital asset. What happens to the income and growth on those proceeds during the marriage is a separate question your attorney can address directly in the agreement.
You are mid-negotiation at the wedding
A deal already in motion when you marry raises harder questions. If the sale closes during the marriage, the payment for a business interest that was itself built or held before the wedding may not automatically follow the same treatment as the business did. A prenup can address this scenario specifically rather than leaving it to be argued after the fact.
You plan to sell years into the marriage
If the sale happens well into the marriage, more of the business’s value may reflect work, capital, or effort contributed during the marriage. A prenup can define in advance how to separate the pre-marital and marital contributions to the eventual sale price.
What a prenup can address
Six places a business sale meets prenup planning
Characterizing the upfront payment
The agreement can address how the cash or stock received at closing is treated, tying it to the ownership interest that existed before the sale.
Characterizing earn-outs and deferred payments
A prenup can specify in advance how future, performance-based payments from a sale are treated, rather than relying on a court to decide whether they compensate for past ownership or future work.
Consulting or employment agreements tied to the sale
If a sale includes staying on as a consultant or employee, the agreement can address how that ongoing income is distinguished from the sale proceeds themselves.
Timing relative to the wedding
The agreement can address what happens if a sale that started before the wedding closes after it, so a deal already in motion is not left in limbo.
Reinvestment of sale proceeds
Many owners roll sale proceeds into a new venture, real estate, or an investment portfolio. A prenup can address how proceeds are traced and treated once they are reinvested.
A minority stake retained after a partial sale
Some owners sell a controlling interest but keep a minority stake. The agreement can treat the sold and retained portions differently, reflecting that one has been converted to cash and the other has not.
A clear comparison
Template platform vs lawyer-led prenup
A fill-in-the-blank form can state that a business is separate property. It cannot distinguish an upfront sale payment from an earn-out, or address a deal that closes after the wedding. Here is how a template compares with a lawyer-led prenup for a business sale.
| Feature | Template platform | Lawyer-led prenup (Neptune) |
|---|---|---|
| Distinguishes upfront payment from earn-outs | Not addressed | Defined for your deal structure |
| Addresses a sale in progress at the wedding | Not considered | Reviewed by your attorney |
| Covers reinvested proceeds and retained stakes | Generic separate-property clause | Traced and defined in the agreement |
| Independent counsel for each partner | None | A separate attorney for each of you |
| Cost | Low upfront, unclear if it holds up | $5,000 flat, both attorneys included |
How Neptune works
Three steps to a prenup that keeps sale proceeds clear
Guided intake for your deal
Neptune’s AI-guided intake asks about your business, its ownership structure, and where you are in a sale or exit process, in plain language.
A consultation with your own attorney
Each partner is connected with a separate, experienced family law attorney who can review your specific deal structure and timeline. Consultations are free.
An agreement that keeps proceeds clear
Your attorneys draft terms that address the upfront payment, any earn-outs, and how proceeds are treated once reinvested. Turnaround is typically around 3 to 4 weeks when both partners use Neptune attorneys.
Transparent pricing
One flat fee. Two independent attorneys.
Each partner gets their own licensed attorney. One drafts the agreement; the other reviews it on behalf of the second partner.
$5,000
per couple, total
Rush pricing applies when the wedding is within 45 days. No payment required to get started.
Guides for you
Guides on assets, debt, and equity
Start with the guides other couples read before they begin, then take the next step when you are ready.
Common questions about business sales and prenups
If I sell my business after we get married, are the proceeds mine?
It depends on when the business was built, when it was sold, and how the sale is structured. A business you owned before the marriage is typically your separate property, but appreciation and effort during the marriage can complicate that picture, and rules for dividing property differ from state to state. A prenup can define in advance how the sale proceeds from a premarital business are treated, rather than leaving that question to be argued later. Your attorney can review what applies to your situation.
How are earn-outs treated compared to the upfront payment?
This is one of the more unsettled areas in business-sale cases. Courts have reached different conclusions about whether a deferred, performance-based earn-out payment compensates for the value of the business as it existed at the time of sale, or for the seller’s work after the deal closes. Some rulings have treated earn-outs as tied to the underlying sale, others have treated them as compensation for future labor. A prenup can specify how your particular deal structure should be characterized, so the question is settled before it is ever contested.
What if I am in the middle of selling my business when we get married?
A sale already in negotiation at the time of the wedding is a scenario worth addressing directly. If the deal closes during the marriage, the payment may not automatically be treated the same way the business itself would have been treated before the sale. A prenup can specifically address a sale that is underway or expected, so timing does not create an unintended result.
What happens if I reinvest the sale proceeds into a new business?
Many owners take proceeds from one sale and roll them into a new venture, real estate, or an investment account. Whether the reinvested funds keep their separate character depends on how clearly they can be traced back to the original sale and how they are held afterward. A prenup can define the tracing and treatment of reinvested proceeds in advance, which is far easier than reconstructing the trail years later.
What does it cost and how long does it take?
Neptune charges a flat fee of $5,000 per couple, which covers two independent attorneys, one for each partner. No payment is required to get started. Turnaround is typically around 3 to 4 weeks when both partners use Neptune attorneys. Rush pricing applies when the wedding is within 45 days.