Does a Prenup Cover Alimony? Waiving Spousal Support Explained

Short answer: yes, a prenuptial agreement can address alimony - including waiving it entirely - but whether that waiver actually holds up depends heavily on the state where you divorce. Spousal support (also called alimony or maintenance) is one of the most common things couples try to control with a prenup. It is also one of the terms courts scrutinize most closely. A waiver that is airtight in one state can be partly or fully ignored in another, especially if enforcing it would leave one spouse destitute.

If you are reading this because a prenup is sitting between you and a divorce settlement, here is what you actually need to understand.

Can a prenup cover alimony at all?

In most states, yes. A prenup can set, limit, or waive spousal support. Couples commonly use it to:

• Waive alimony completely - neither spouse can ask for support if they divorce.
• Cap the amount or duration - for example, support limited to a set monthly figure or a fixed number of years.
• Set a formula - support that scales with the length of the marriage.
• Guarantee support - a floor amount one spouse agrees to pay regardless of circumstances.

That said, a handful of states have historically been more restrictive about letting couples waive support entirely, and some treat alimony waivers differently from waivers of property rights. This is one of the areas where state law genuinely diverges, so the existence of a clause is not the same as the clause being enforceable. Our per-state prenup pages cover how your state treats spousal-support waivers specifically.

Can you get alimony even if you signed a prenup?

Sometimes, yes. Signing a prenup that waives alimony does not guarantee you will never receive support. There are two separate ways alimony can still be on the table:

1. The whole prenup is invalid

If a court throws out the agreement, the alimony waiver goes with it, and support is decided under normal state law. Common grounds for invalidating a prenup include:

• It was not signed voluntarily - signs of duress, coercion, or being handed the document the night before the wedding with no time to review or consult a lawyer.
• It was unconscionable when signed - so one-sided and unfair that no reasonable person would have agreed to it knowingly.
• Inadequate financial disclosure. Under the Uniform Premarital Agreement Act framework (Section 6), incomplete disclosure of assets and debts is not by itself an automatic ground to void the agreement. It matters as part of proving unconscionability - and, importantly, if the challenging spouse signed a voluntary, express, written waiver of disclosure, that defeats a disclosure-based challenge. So "I didn't know everything he owned" is a weaker argument than many people assume if you signed away the right to that information.
• Fraud or misrepresentation - one spouse lied about something material.
• No independent counsel - in some states, an alimony waiver is only enforceable if the waiving spouse was represented by, or knowingly waived, their own attorney.

2. The alimony waiver specifically is unenforceable

Even when the rest of the prenup stands, courts in many states apply a special, tougher test to spousal-support waivers. The most common safeguard is the "second look": a court re-examines the waiver as of the time of the divorce, not just when it was signed. If circumstances have changed so dramatically that enforcing the waiver would be unconscionable - for example, a spouse who gave up a career, is now disabled, or would have to rely on public assistance - a court may refuse to enforce the waiver or may award limited support anyway.

Some states draw a hard line at public assistance: a waiver that would leave one spouse eligible for public benefits can be set aside to that extent, so taxpayers don't shoulder what an ex-spouse agreed to provide. Whether your state applies a second-look standard, and how strict it is, varies - this is exactly the kind of detail our state pages address.

What makes an alimony waiver more likely to hold up

If you are evaluating an existing prenup (or about to sign one), enforceable spousal-support waivers tend to share these features:

• Both spouses had real time to read it - signed well before the wedding, not in the final scramble.
• Full, written financial disclosure attached, or a knowing written waiver of disclosure.
• Independent legal representation for each spouse, or a clear, knowing waiver of the right to counsel.
• Clear, specific language that the parties intend to waive spousal support - vague clauses get read narrowly.
• No signs of pressure - no threats to call off the wedding, no hidden terms.
• Terms that are not grossly one-sided either when signed or when enforced.

The reverse is also true: a last-minute signing, no lawyers, hidden assets, and a waiver that would leave one spouse with nothing are the classic ingredients of a challenge that succeeds.

Postnups and alimony

If you are already married, a postnuptial agreement can also address alimony. Postnups are generally held to standards at least as demanding as prenups - and some states scrutinize them more closely, because spouses owe each other a heightened duty of fairness once married. The same themes apply: voluntariness, disclosure, independent counsel, and fairness at enforcement.

What a prenup usually cannot do

Even a valid prenup has limits. Across states, courts generally will not let a prenup:

• Waive or limit child support - that right belongs to the child, not the parents, and cannot be bargained away.
• Predetermine child custody - custody is decided on the child's best interests at the time of divorce, not by contract.
• Include illegal or non-financial "lifestyle" terms that courts won't enforce (who does chores, weight clauses, and the like).

So a prenup that tries to bundle an alimony waiver with a child-support waiver does not strengthen the alimony clause - and the child-support portion is unenforceable regardless.

What you can do

1. Read the agreement carefully and find the support clause. Look for words like "spousal support," "alimony," "maintenance," and "waiver." Note whether it waives support entirely or just limits it.
2. Gather the signing record. When was it signed relative to the wedding? Were financial disclosures attached? Did each spouse have a lawyer? These facts drive enforceability.
3. Assess your state's rules. Because spousal-support waiver law varies so much, check how your state treats waivers - particularly whether it applies a second-look or public-assistance exception. See our state-specific prenup page for the details that apply to you.
4. Document changed circumstances. If enforcing the waiver now would be devastating - lost career, illness, disability, dependence on benefits - write down the specifics. That is the core of a second-look challenge.
5. Talk to a family-law attorney before you rely on - or sign away - support. Enforceability questions turn on small facts and local case law. A short consultation can tell you whether a waiver is likely to hold.
6. Watch your deadlines. Divorce filings, responses, and agreements to settle all carry time limits, and arguments not raised early can be lost. Do not wait to get advice.

Time-sensitive points to flag

• Challenges have deadlines. If you want to contest a prenup's validity or an alimony waiver, raising it early in the divorce matters - waiting can waive the argument.
• Evidence fades. Proof of duress, last-minute signing, or hidden assets is easiest to establish while records and memories are fresh.
• Settling can lock it in. Signing a divorce settlement that accepts the waiver may end your ability to challenge it - read before you sign.

The bottom line

A prenup absolutely can cover alimony, and a well-drafted waiver can be fully enforceable. But "a prenup waives alimony" is not the end of the analysis. Whether you can still get support comes down to two questions: is the prenup itself valid, and does your state enforce this particular waiver under the circumstances at divorce? Because the answers vary so much by state, the same document can produce very different outcomes depending on where you file.

This article is general information, not legal advice; consult a licensed attorney in your state about your specific situation.