Prenuptial Agreements Explained: What They Do, When Couples Use Them, and How to Raise the Topic

You have a retirement account you have been building for a decade, your partner runs a small business, and the wedding is in four months. No one wants to start a marriage with a legal document. The alternative is worse: a state court deciding who gets what in a divorce you did not plan for. A prenuptial agreement is not about planning for failure. It is about deciding asset classification, debt liability, and spousal support terms while you both still agree on what is fair.

A prenuptial agreement governs three things: how property gets classified, who is responsible for which debts, and whether spousal support will be paid or waived. It does not govern child custody, child support, or day-to-day behaviour clauses like how often you do the dishes or where you spend holidays. Courts retain jurisdiction over children's best interests regardless of what the document says. Clauses that try to regulate personal conduct get ruled unconscionable and thrown out.

Separate Property and Debt Liability

What a prenup can do is designate specific assets as separate property: the house you owned before the marriage, the business you built, an inheritance you expect. Those stay out of the marital property pool that gets divided on divorce. It can also assign debt liability. If one partner has student loans or credit card debt, the contract can state that the other partner is not responsible for it.

Spousal Support and the Four Standards

Spousal support waivers are enforceable in most states. The standard is higher under the Uniform Premarital and Marital Agreements Act (UPMAA) than under the original Uniform Premarital Agreement Act (UPAA). For the contract to survive a court challenge, four standards must be met: full financial disclosure by both parties, independent legal counsel for each (or a knowing and voluntary waiver of that right), absence of coercion, and terms that are not unconscionable at the time of execution. Unconscionability means the terms shock the conscience. A waiver that leaves one spouse destitute while the other retains millions, signed without any understanding of the other's assets, is the classic example.

Prenups are most common among couples in specific situations. A 2016 survey by the American Academy of Matrimonial Lawyers found the most frequently cited reason for requesting one is protection of separate property. Protection of a family business or inheritance follows closely. The second-marriage demographic drives much of this. When one or both people have children from a previous relationship, the contract ensures those children inherit assets intended for them rather than seeing them absorbed into the marital estate.

Business Owners and Inheritances

Business owners use prenups to keep the company structure intact. Without one, a spouse could claim a share of the business's value or demand a role in its management after divorce. Anyone expecting a significant inheritance, or who already holds one, uses a prenup to keep that money separate. This avoids the presumption under most state laws that assets acquired during marriage are marital property.

Asset Disparity and a Growing Trend

Asset disparity is another trigger. If one person enters the marriage with substantially more wealth, a prenup prevents the higher earner from subsidising the other indefinitely after divorce. Millennials are the age group with the highest reported increase in requests, according to the 2016 AAML survey. The Harris Poll for Axios in 2023 found that 50% of married or engaged adults report having signed or planning to sign a prenuptial agreement, compared to only 15% of divorced or separated adults who actually had one. The practice is growing fast.

The hardest part of a prenuptial agreement is not the legal drafting. It is the conversation that starts it. The person raising the topic fears looking greedy or untrusting. The person hearing it fears being seen as a gold digger or being taken advantage of. Neither fear is about the document itself. Both are about how the subject gets introduced.

Start With a Softened Opening

Frame the discussion as a joint planning exercise, not a demand. Use an I-statement that names your own motivation: "I want us to agree on how we handle money before we are married because I think it makes us stronger as a team." This grounds the topic in shared goals, fairness, clarity, and protection for both of you. It is not about suspicion or protection against the other.

Avoid surprise. Do not bring it up at dinner or during a romantic weekend. Schedule a calm, private talk where both of you know the topic in advance. The worst failure mode is the person who hears about the prenup for the first time when the lawyer sends a draft.

What the Conversation Must Cover

Both parties must complete a full financial disclosure before the contract is signed. List all assets, liabilities, income, and expected inheritances. If one person hides a retirement account or a debt, the contract can be set aside later for failure of the disclosure requirement. Start that disclosure in the conversation itself, even if the formal documentation comes later.

Both of you should have independent legal counsel. A prenuptial agreement signed without a lawyer for one side is vulnerable to challenge on grounds of coercion or lack of understanding. If your partner says they do not need a lawyer, the safest response is: "I want you to have your own lawyer so that we both know this contract will hold up. I will pay for it if that helps."

The Timing Rule of Thumb

Case law suggests that signing a prenuptial agreement less than 30 days before the wedding creates a presumption of duress. The American Academy of Matrimonial Lawyers guidelines recommend starting the process at least three months before the wedding date. That gives both of you time to find lawyers, negotiate terms, and sign without pressure. If you are reading this with the wedding a month away, move fast. Be transparent about the timeline with your partner.