Can You Waive Alimony in a Prenup?

By Aaron Thomas, Esq. · Updated October 26, 2026

In most states, yes. A prenup can waive or limit alimony, but not always completely. Some states require a lawyer for the spouse giving up support, some let a court step in if a waiver causes hardship, and some limit waivers that would leave a spouse relying on public assistance.

Key Takeaways

• In most states a prenup can waive, cap, or set the terms of alimony, which is also called spousal support or maintenance. Support is the part of a prenup that courts examine most closely.
• Four patterns recur across states: a lawyer requirement for the spouse giving up support, a hardship safety valve, a second look at divorce, and a public-assistance limit.
• A waiver that is reasonable on the day of signing can still be questioned later in states that take a second look, so the terms need to stay fair over time.
• A full waiver is not the only option. Couples can cap support, set a duration, tie it to the length of the marriage, or use a formula.
• Whatever the state, a support term holds up best with full disclosure, time to review, and a lawyer for the spouse giving up rights.

What “Waiving Alimony” Actually Means

Alimony, spousal support, and maintenance are different names for the same idea: payments from one spouse to the other after a divorce. Without an agreement, a judge decides whether support is owed, how much, and for how long, using factors set by the state. A prenup can replace that open question with terms the two spouses chose. It can waive support entirely, cap it, limit its duration, or set a formula.

In most states that is allowed. But support is treated differently from the rest of a prenup. A court that will enforce a property division almost as written may look much harder at a support waiver, because the stakes are different. Property division decides who gets what. A support waiver can decide whether a spouse is left without the means to live.

Why Courts Watch Support Terms Closely

The concern behind these rules is practical. A spouse who gave up a career to raise children, or who earns far less than the other, may sign a waiver that looks reasonable at the altar and looks very different twenty years later. States respond to that risk in different ways, and the responses fall into four patterns. The examples below are summaries, not a full account of any state’s law, and each state’s page has more.

Pattern One: A Lawyer for the Spouse Giving Up Support

California’s support rules are the strictest on this point. A waiver of spousal support is unenforceable unless the spouse giving it up had independent counsel (Cal. Fam. Code § 1612(c)). For other parts of a California prenup, a spouse can sign a written waiver of the right to counsel instead. For a support waiver, that alternative does not rescue the term.

The practical lesson travels well beyond California. Even in states that do not require a lawyer, a support waiver signed by a spouse with no advice is the easiest kind to attack later.

Pattern Two: A Hardship Safety Valve

Illinois’s safety valve works differently. The state follows the standard uniform act, but it adds a provision for support: a court can override a maintenance waiver that would cause undue hardship because of circumstances that were not reasonably foreseeable when the agreement was signed (750 ILCS 10/7(b)).

That wording points to a drafting approach. Foreseeable changes, such as children, a career pause, or a business that grows, are the ones an agreement should address directly, so that the unforeseeable are the only ones left for a court to weigh.

Pattern Three: A Second Look at Divorce

New York’s maintenance rule has two checkpoints. A maintenance term has to be fair and reasonable when the agreement is made, and it must not be unconscionable at the time of the final judgment (N.Y. Dom. Rel. Law § 236(B)(3)). California applies a second look for unconscionability to support waivers at enforcement as well, and Colorado reviews support terms again at enforcement too.

Most states judge a prenup only as of the day it was signed. Where support gets a second look, the substance of the term keeps mattering for years. The terms need to be reasonable on day one and still reasonable decades later.

Pattern Four: A Public-Assistance Limit

In Arizona, Kansas, and Oregon, a support waiver has a built-in boundary. A court can step in to the extent a waiver would leave a spouse eligible for public assistance. That is a narrow limit, and it does not undo the whole waiver, but it is a boundary no agreement can contract around. Each of their state pages covers the details.

Drafting a Support Term That Holds Up

Because support gets this much scrutiny, the way a term is drafted matters more than the fact that it exists. A full waiver is the bluntest tool. Many couples are better served by a cap, a duration, a sliding schedule tied to the length of the marriage, or a formula. A waiver that is reasonable for two spouses with similar careers may not be reasonable if one of them later steps back from work, which is a foreseeable change an agreement can plan for.

The foundation is the same everywhere. Full financial disclosure, including income. Enough time to read and consider the terms. A lawyer for the spouse giving up rights. No pressure around the signing. A prenup that is enforceable in court starts with those basics, and a support term is the first place a challenger looks for them to be missing. No agreement can promise how a particular court will treat a support waiver, and anyone who says otherwise is overselling.

If you are thinking about how support should be handled in your own agreement, you can schedule a consultation with a licensed attorney who can tell you what applies in your state. The flat-fee pricing for a prenup is published in full.

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