You might think your startup is worth zero today, so why bother with a prenup? You’ve got no revenue, you’re still chasing your first round of funding, and you figure there’s nothing to protect.
In New York, that is a million-dollar mistake.
The value of your company on your wedding day is not what matters. What matters is what happens when that business “explodes” during your marriage. If you’re building a company while you’re married, you aren’t just building a business; you’re building a marital asset. It’s called the Sweat Equity Trap, and if you aren’t careful, you’re spending 80 hours a week at the office just to hand a massive payout to your ex-spouse down the road.
Luck vs. Work: The Active Appreciation Problem
New York makes a very sharp distinction between “luck” and “work.” If you own a piece of land and the market goes up, that’s passive appreciation. In a divorce, that growth usually stays yours although you still could be on the hook to reimburse part of any taxes or mortgage amortization paid during the marriage.
But your startup is different. Your business grows because you are hiring teams, closing deals, and skipping sleep. That is “active” appreciation. In New York, the appreciation of a separate asset caused by your active work during the marriage is considered marital property.
If your company was a pre-revenue concept when you walked down the aisle and a twenty-million-dollar enterprise when you file for divorce, the court is going to look at your “sweat equity.” They will ask exactly how much of that growth happened because of your hard work while you were married. That portion is on the table, and your spouse is going to want their cut.
The Indirect Contribution Argument
I hear this from founders all the time: “My spouse never stepped foot in my office, so they didn’t contribute to the growth.”
New York courts do not care. A spouse can claim a share of your business growth just by showing they made an “indirect contribution.” Did they manage the house? Did they handle the kids so you could stay at the office until midnight or travel for business? Did they give you the “emotional support” you needed while you were in the trenches?
In New York, being a supportive spouse is often enough to give them a 30% or even 40% interest in the appreciation of your company. You are essentially paying them for the time and energy you were able to invest in your startup because they were handling everything else at home.
Why a $0 Valuation is the Ultimate Trap
The reason founders skip the prenup is usually because the business has no current value. But a prenup isn’t about what the company is worth today; it’s about ring-fencing the future.
Without an agreement, you are leaving the door wide open for a forensic accountant to come in years from now and put a price tag on your marriage. They will look at your exit, your funding rounds, and your milestones, and they will calculate exactly how much your spouse is owed for your success.
How to Shield Your Startup
The only real way to avoid this is to opt out of the default rules. A well-drafted New York prenup can state that any appreciation in the value of your business—regardless of your efforts or your spouse’s contributions—remains your separate property.
We also need to look at your corporate hygiene:
- Keep Finances Strictly Separate: Never use marital funds to bridge a gap in your business.
- Pay Yourself a Fair Salary: If you underpay yourself to reinvest in the company, the court could view that as “marital money” being funneled into the business.
- Define Roles Early: If your spouse helps with the brand or does some light admin work, make sure that you have a prenup or even a postnup as their entitlement increases as do their direct efforts.
You are building a legacy. Do not let the lack of a simple document turn your greatest professional achievement into your biggest personal liability. Protecting your startup isn’t about a lack of trust; it’s about ensuring that the equity you bleed for stays exactly where you intended.
Lisa Zeiderman, Esq.
New York Divorce and Family Law Attorney