High Net Worth Prenups

A New York high net worth prenup protects significant and complex wealth before marriage. This kind of prenuptial agreement defines what stays separate, decides how investments, businesses, and future appreciation are treated, and coordinates with your estate plan, so a divorce is resolved by terms you chose rather than by a court dividing everything you have built.

My firm, Eiges Law P.C., is a boutique New York practice devoted entirely to prenuptial and postnuptial agreements, backed by four decades of matrimonial experience. Substantial wealth is rarely simple. It spans accounts, entities, real estate, trusts, and future upside, and a form document cannot address any of it well. I draft agreements built around the full picture of what you own and what you expect to build, with the discretion these matters deserve. Business founders with concentrated ownership often need my dedicated business owner prenup guidance alongside this one.

Protect what you have built and start the conversation. If you are entering a marriage with significant assets, I am ready to help you put an agreement in place that safeguards your wealth and stands up when it counts. Schedule a confidential consultation today, and let me draft the quiet, complete protection your estate deserves.

Does a Prenup Protect Assets in a New York Divorce?

Yes. A properly drafted prenup is the most reliable way to protect assets in a New York divorce. It can confirm what you owned before the marriage as separate property, keep specific accounts and holdings out of division, waive claims against each spouse’s estate, and set clear rules for wealth acquired during the marriage, all decided in advance while the relationship is strong.

Protection matters because New York’s default rules divide marital property through equitable distribution, and for a high net worth couple the stakes of that default are enormous. Commingled accounts, appreciating investments, and businesses grown during the marriage can all generate marital claims that a couple never intended. A high net worth prenup replaces that exposure with certainty. I write terms designed to hold up years later, when they are needed most.

Does a Prenup Protect Future Assets and Appreciation?

Yes. One of the most valuable features of a high net worth prenup is that it can protect future assets, not just what you own today. The agreement can classify future earnings, investment growth, business appreciation, and property acquired later as separate, addressing the wealth you expect to create as well as the wealth you already hold.

This closes a gap that surprises many affluent couples. Under Domestic Relations Law Section 236(B)(1)(d), the increase in value of separate property can become marital when it results from the efforts of either spouse. New York’s Court of Appeals drew that line in Price v. Price, 69 N.Y.2d 8 (1986), separating active appreciation, driven by a spouse’s work, from passive appreciation, driven by the market. Without an agreement, the growth of a premarital portfolio or company during the marriage can be partly marital. A high net worth prenup lets me define future appreciation and earnings as separate before any of that value exists.

What Assets Should a High Net Worth Prenup Address?

A high net worth prenup should address every category of significant wealth: real estate, investment and brokerage accounts, business interests, retirement assets, equity compensation, trusts and expected inheritances, and valuable personal property. Leaving any major asset unaddressed invites exactly the dispute the agreement is meant to prevent.

For a high net worth couple, the detail is the protection. A thorough New York high net worth prenup typically covers:

Real estate holdings, including investment properties, second homes, and property held through entities.
Investment, brokerage, and retirement accounts, along with their future growth.
Business interests, partnership and membership stakes, and their appreciation.
Equity compensation such as stock options, restricted stock units, and carried interest.
Trust interests, gifts, and expected inheritances that should remain separate.
Valuable personal property, including art, collections, and other significant holdings.
Intellectual property, royalties, and other income-producing rights.
Debts and liabilities, so obligations are allocated as clearly as assets.

Because these holdings interact, a change in how one is treated can affect the others. I map the entire estate first, then draft terms that fit together as one coherent plan rather than a stack of unrelated clauses.

How Does New York Divide Property in a Divorce Without a Prenup?

Without a prenup, New York classifies everything as either separate or marital property and divides the marital portion through equitable distribution. Separate property generally stays with its owner, but the line blurs fast when separate assets are commingled, retitled, or grown through a spouse’s efforts, and a court then decides the outcome.

Under Domestic Relations Law Section 236(B)(1)(d), separate property includes what you owned before marriage, property received as a gift or inheritance from a third party, and property acquired in exchange for separate property. The danger for a wealthy couple is transmutation: separate funds deposited into a joint account, or a separate home retitled in both names, can lose their separate character and become marital. Section 236(B)(5) then governs how marital property is equitably distributed, which does not always mean equally. A high net worth prenup removes this uncertainty by fixing each asset’s character by agreement, so tracing and commingling arguments never arise.

Can a Prenup Limit or Waive Spousal Maintenance?

Yes, within limits. A New York prenup can set, cap, or waive spousal maintenance, which is the state’s term for spousal support. Under Domestic Relations Law Section 236(B), a maintenance term is enforceable when it is fair and reasonable at signing and not unconscionable at the time it is enforced, so the provision must be reasonable, not one-sided.

For high net worth couples, maintenance terms are often a central part of the agreement, defining support in a way both spouses understand rather than leaving it to the statutory formula and a judge’s discretion. A carefully drafted provision balances certainty with the fairness New York requires, because a maintenance waiver that leaves one spouse destitute is exactly the kind of term a court will refuse to enforce. I draft maintenance terms to be clear and durable, not brittle.

Can a High Net Worth Prenup Protect an Inheritance or Trust?

Yes. Inheritances and gifts from third parties are already separate property in New York, but that protection is easily lost through commingling. A high net worth prenup reinforces it by confirming that inherited assets, trust interests, and family gifts remain separate no matter how they are later held or used during the marriage.

Wealthy families frequently use trusts and lifetime gifts to pass assets between generations, and a marriage can put that planning at risk if separate funds are mixed with marital ones. A prenup can require that inherited and trust assets stay documented as separate, protect distributions received during the marriage, and coordinate with the terms of family trusts. I align the agreement with existing trust and family planning, so wealth intended to stay in the family actually does.

How Does a High Net Worth Prenup Fit With Estate Planning?

A high net worth prenup and an estate plan work together. In New York a surviving spouse has a statutory right of election to claim a share of the deceased spouse’s estate, and a prenup can waive or modify that right. Coordinating the agreement with wills and trusts keeps the two plans from contradicting each other.

Under New York’s Estates, Powers and Trusts Law Section 5-1.1-A, a surviving spouse can generally elect to take roughly one third of the estate, regardless of what a will says. A prenup can waive that right of election, provided the waiver is in writing, signed, and acknowledged as the law requires. For a high net worth individual with children from a prior marriage or a detailed estate plan, this coordination is essential, and I draft the prenup and estate-plan waivers to function as one consistent strategy.

Is a High Net Worth Prenup Enforceable in New York?

Yes, when it is drafted and executed correctly. Under Domestic Relations Law Section 236(B)(3), the agreement must be in writing, signed by both parties, and acknowledged before a notary in the form used to record a deed. For a high net worth couple, complete and honest financial disclosure is the single most important safeguard, because a concealed or understated asset is a leading reason these agreements are challenged.

New York’s highest court set the fairness standard in Christian v. Christian, 42 N.Y.2d 63 (1977), allowing a marital agreement to be set aside for overreaching. The more wealth involved, the more closely a court will scrutinize both the disclosure and the terms. The requirements a New York court looks for include:

A written agreement signed by both parties, as required by Domestic Relations Law Section 236(B)(3).
Proper notarial acknowledgment in the form used to record a deed.
Full and honest disclosure of all significant assets, income, and debts.
Independent counsel for each party and signing well before the wedding.
Terms that are fair and reasonable when signed and not unconscionable when enforced.

Handled this way, a high net worth prenup is difficult to overturn. I build a thorough disclosure record and a clean execution, so the agreement protects the wealth it was written to defend.

What If We Are Already Married?

A high net worth couple that is already married can achieve the same protection through a postnuptial agreement. New York governs prenups and postnups under the same law, so wealth acquired, grown, or inherited after the wedding can still be protected by signing an agreement now rather than before the marriage.

Couples often reach this point after a liquidity event, an inheritance, or a significant change in one spouse’s financial position. The subjects mirror a prenup, and only the timing differs. I advise on whether a prenup or a postnuptial agreement fits your circumstances, and I draft either one to the same demanding standard.

How Much Does a High Net Worth Prenup Cost in New York?

The cost of a high net worth prenup reflects the complexity of the estate, the number of assets and entities involved, and the negotiation the terms require. Measured against the wealth at stake and the cost of litigating that wealth in a divorce, a well-drafted agreement is a modest and worthwhile investment.

An agreement covering diverse holdings, trusts, businesses, and a detailed maintenance structure naturally takes more work than a simple one. During a confidential consultation, I explain the fee structure in advance, so you can weigh a predictable, one-time cost against the far larger and unpredictable expense of a contested high asset divorce later.

How Do I Handle New York High Net Worth Prenup Cases?

I handle every high net worth prenup through a clear, staged process: a confidential consultation, a full inventory and disclosure of assets, careful drafting coordinated with estate and business planning, review and negotiation between the parties, and a properly executed signing. Each stage protects wealth while keeping the process discreet and calm.

It begins with a complete understanding of the estate, because the terms can only be as good as the picture they are built on. From there, I guide honest, documented disclosure, draft protections tailored to each asset class, and coordinate the agreement with trusts, entities, and estate-plan waivers already in place. A fair, transparent review period lets both parties understand every provision, and the process closes with a signing that meets New York’s acknowledgment rules exactly. The result is an agreement drafted with the discretion, precision, and care substantial wealth requires.

Why Choose Eiges Law P.C. for Your High Net Worth Prenup?

Eiges Law P.C. is my New York firm, devoted entirely to prenuptial and postnuptial agreements, with four decades of matrimonial experience behind every document. Significant wealth calls for a lawyer who has drafted around investments, businesses, trusts, and estate plans before, not a general practitioner treating a prenup as a routine form.

When the assets are substantial and the details are private, affluent couples want a New York high net worth prenup lawyer who brings both matrimonial skill and real financial fluency to the table. My approach is respectful and non-adversarial, tailored to your wealth and your goals rather than treating an agreement as a fight to be won. Confidential consultations are available in office, by phone, or by video, so protecting what you have built can start with a single, discreet conversation.