Article Summary
- A prenup can specify how premarital assets, inheritances, and business ownership are treated, but it generally cannot override child custody or child support, which family courts decide independently.
- Prenups aren't only for the wealthy — they're commonly used by people entering a second marriage, protecting a family business, or managing significant debt or income disparity between partners.
- The agreement is far more likely to hold up if both parties have independent legal representation and full financial disclosure was made — a prenup drafted by one side's attorney with no counsel for the other is a common way agreements later get challenged.
"In this world nothing can be said to be certain, except death and taxes."
Benjamin Franklin
The word "prenup" tends to conjure a specific image — a wealthy couple, a stack of paperwork, a lawyer in a corner office. In practice, a growing number of couples entering marriage later in life, with existing careers, homes, retirement accounts, or children from a prior relationship, treat a prenuptial agreement less like a hedge against love failing and more like a financial planning document, similar in spirit to a will: not something you sign because you expect the worst, but something that makes a hard situation more orderly if it ever happens, and clarifies expectations for both people right from the start.
What a Prenup Can and Can't Do
A prenuptial agreement can typically address how premarital property is treated (a home owned before the marriage, for example), how future earnings and property acquired during the marriage will be classified, whether spousal support would be paid and how much, how a jointly run or one spouse's business is valued and divided, and how debts brought into the marriage are handled if things end in divorce. It can also address less obvious items, like protecting an inheritance intended for children from a previous relationship, or specifying that certain retirement accounts remain separate property.
What it generally cannot do is determine child custody, visitation, or child support — family courts retain authority over those decisions at the time of any divorce, based on the child's best interests as they exist then, not on what two people agreed to years earlier before children were even born. A prenup also can't include provisions courts consider unconscionable or that waive certain baseline protections, and requirements for validity — full financial disclosure, no coercion, reasonable time to review before the wedding — vary by state, which is why using a qualified family law attorney rather than a generic template matters.
Who Tends to Use One, and Why
Prenups are most commonly associated with significant premarital wealth, but in practice they're used across a much wider range of situations. Someone entering a second or later marriage, especially with children from a previous relationship, often wants clarity that specific assets pass to those children rather than becoming entangled in a new spouse's estate. A business owner may want a prenup to keep the business itself — and its future growth — protected from being treated as a shared marital asset in the event of a divorce, which can otherwise force a sale or a messy valuation dispute.
A significant disparity in income, debt, or existing assets between partners is another common reason to consider one — not because either partner distrusts the other, but because an honest conversation about 'what happens if' before the wedding tends to be calmer and more thorough than the same conversation forced under the stress of an actual separation years later. Some couples with roughly equal assets and no complicating factors choose to skip a prenup entirely and rely on their state's default marital property laws, which is also a legitimate choice.
Raising the Topic Without It Becoming a Fight
The conversation tends to go better when it's framed as a shared financial planning exercise rather than one partner unilaterally protecting themselves from the other. Bringing it up early — well before wedding planning is in full swing and emotions around cost and logistics are already high — gives both people time to think it through without the pressure of an approaching date. Being transparent about the reason (a family business, a prior marriage, an inheritance, a parent's request) rather than leaving the other partner to guess at the motivation also tends to reduce defensiveness.
Full financial disclosure from both sides is not just good practice, it's typically a legal requirement for the agreement to hold up later — an agreement built on hidden assets or incomplete information is one of the more common grounds on which prenups get successfully challenged in court. Each partner having their own attorney, rather than one attorney representing both or drafting on behalf of one side only, is the standard that gives the agreement the best chance of being enforced as written if it's ever needed.
A Practical Framework for Deciding
Work through a short set of questions together. Does either partner bring meaningfully more assets, debt, or income into the marriage? Is there a business, inheritance, or family wealth that one partner wants to keep protected as separate property? Does either partner have children from a previous relationship whose future inheritance needs explicit protection? Has either partner been through a difficult divorce before and want more clarity built in from the start this time? If the answer to any of these is yes, a conversation with a family law attorney, ideally before setting a wedding date rather than after, is a reasonable next step. If none apply and both partners are comfortable relying on their state's standard marital property rules, skipping a prenup is a legitimate choice too — the goal isn't to make every marriage sign one, it's to make sure the decision, either way, is made deliberately rather than by default.