You can include a clause with no alimony in a prenup, and courts in most states will enforce it as long as the agreement meets specific procedural and fairness standards. About 29 states and the District of Columbia have adopted some version of the Uniform Premarital Agreement Act or its successor, which expressly permits couples to modify or eliminate spousal support by contract.1Uniform Law Commission. Uniform Premarital and Marital Agreements Act The catch is that a judge always keeps the power to set the waiver aside at the time of divorce if enforcing it would leave one spouse destitute or dependent on public assistance. Getting the clause to hold up demands attention to disclosure, legal representation, timing, and the way life may look years after signing.
Spousal support waivers get more judicial scrutiny than property division clauses. Courts view support as touching public welfare in a way that splitting assets does not, and that distinction shapes every enforceability question below.
What Makes the Waiver Enforceable
Full Financial Disclosure
Both parties need to lay their finances bare before signing. That means a complete accounting of assets, debts, and income, typically documented through recent tax returns, bank statements, and a net-worth worksheet. Without that transparency, a court can find that the spouse waiving support had no real understanding of what they were giving up, and the entire clause collapses. The disclosure does not have to be forensic-level, but it has to be honest and thorough enough for both sides to gauge the stakes.
Independent Legal Counsel for Each Party
Having your own attorney is the single most effective way to protect an alimony waiver from later challenge. Some states go further and make independent counsel an absolute requirement for spousal support waivers specifically. In those jurisdictions, a waiver signed without independent representation for the party giving up support is unenforceable on its face, no matter how fair the terms might be. Even where independent counsel is not strictly mandatory, a court that sees both parties had their own lawyers is far less likely to find the agreement one-sided or misunderstood. Splitting the cost of a single attorney is a false economy that puts the whole agreement at risk.
Timing and Voluntariness
An agreement pushed across the table the night before the wedding is practically begging to be thrown out. Courts treat last-minute signing as evidence of duress, because the pressure of an imminent ceremony makes it hard for either party to walk away or negotiate meaningfully. Some states have codified minimum waiting periods. The most well-known version requires at least seven calendar days between the moment one party first receives the agreement and the date it is signed. Even in states without a formal waiting period, presenting the agreement weeks or months before the wedding demonstrates voluntariness far more convincingly than a rushed timeline. The more breathing room both parties have to review terms, consult their attorneys, and ask questions, the stronger the waiver becomes.
The Uniform Premarital and Marital Agreements Act also requires conspicuous notice that the party may be “giving up your right to be supported by the person you are marrying” before the document is signed.1Uniform Law Commission. Uniform Premarital and Marital Agreements Act Skipping that notice, in states that require it, is another way an otherwise careful waiver falls apart.
When a Judge Can Override the Waiver Anyway
The Unconscionability Standard
A prenuptial agreement can be perfectly valid on the day it is signed and still be struck down decades later. Courts in many states apply what family law attorneys call the “second look” doctrine: the judge evaluates whether enforcing the waiver would be unconscionable given the circumstances at the time of divorce, not just the circumstances at signing. There is no bright-line threshold. Courts have acknowledged the lack of a precise standard, and the concept targets outcomes so one-sided that enforcing them would offend basic fairness.
A waiver that seemed reasonable when both spouses were young professionals earning similar salaries looks very different after one of them has spent fifteen years out of the workforce raising children. Judges examine whether the disparity between the parties has grown so extreme that the waiver no longer reflects anything close to a fair bargain. Most alimony waiver challenges gain traction here. The spouse seeking to enforce the waiver has to show the other party is not facing genuine hardship; the spouse challenging it has to show a dramatic shift in circumstances the original agreement could not have anticipated.
The Public Assistance Safety Valve
Both the original Uniform Premarital Agreement Act and its successor include a specific override: if enforcing a spousal support waiver would make one party eligible for public assistance at the time of separation or divorce, a court can order the other party to provide enough support to avoid that eligibility.1Uniform Law Commission. Uniform Premarital and Marital Agreements Act The government has a direct financial interest in keeping former spouses off welfare rolls, and courts treat this as a hard floor that no private contract can breach. A spouse who becomes disabled, develops a serious illness, or otherwise loses the ability to earn a living during the marriage will almost certainly receive some support regardless of what the prenup says.
Temporary Support Is Harder to Waive Than Permanent Support
Spousal support comes in two forms, and they are treated differently. Temporary support covers the period while the divorce case is pending, so neither spouse is financially cut off before the court divides property and issues final orders. Permanent support is the award issued when the divorce is finalized, and it may last for a set number of years or indefinitely depending on the marriage’s length and the parties’ circumstances.
Most states allow prenups to waive or modify permanent support. Temporary support is harder to waive because courts see it as necessary for both parties to participate meaningfully in the divorce process. If one spouse controls all the household income and the other cannot afford a lawyer or basic living expenses during litigation, the court is unlikely to enforce a waiver that creates that imbalance. A clause that broadly waives “all spousal support” may hold up for permanent alimony and get struck down for the temporary period.
Structured Support Holds Up Better Than a Blanket Waiver
A full alimony waiver is the most aggressive approach and carries the highest risk of being overturned. Structuring support instead of eliminating it often produces a more durable agreement and better protects both parties.
- A lump-sum buyout: a one-time payment made shortly after divorce that replaces ongoing monthly obligations. The receiving spouse gets immediate financial stability, and the paying spouse gets a clean break.
- An escalator formula that ties support to the length of the marriage, such as a set monthly amount for each year the marriage lasted. A five-year marriage generates a smaller obligation than a twenty-year one, which reflects how courts typically think about alimony anyway.
- Inflation indexing, so that any support figure retains its purchasing power if the divorce happens years after signing.
- A sunset clause that causes the waiver to expire after a certain number of years of marriage. If the couple divorces inside that window the waiver applies; if they divorce afterward, standard alimony rules kick in. Courts generally enforce these as written.
These middle-ground options tend to survive judicial review better than blanket waivers because they show the agreement contemplated fairness rather than trying to eliminate one party’s rights outright.
Child Support Cannot Be Waived Under Any Prenup
This is a frequent source of confusion. Child support is fundamentally different from alimony. No prenuptial agreement can waive, limit, or set a ceiling on child support. The obligation belongs to the child, not the other parent, and courts will not enforce any contract that attempts to bargain it away. Provisions that try to restrict child support or dictate custody are void as a matter of public policy. Including unenforceable child support terms can also cast doubt on the rest of the document, so drafting discipline matters here.
How State Rules Change the Analysis
A clause that holds up perfectly in one state may be partially or completely unenforceable in another. About 29 states and the District of Columbia follow some version of the Uniform Premarital Agreement Act or its successor, but many have added their own modifications. Some require independent counsel for spousal support waivers as a hard prerequisite. Others apply the unconscionability test only at the time of signing, while a different group takes the “second look” at enforcement. A handful view spousal support as such a strong public policy concern that courts apply heightened scrutiny to any waiver regardless of how well it was drafted.
If you move to a different state during the marriage, the enforceability of your prenup can shift. The agreement may contain a choice-of-law clause specifying which state’s rules govern, but courts are not always bound by that clause when it comes to spousal support, especially if applying another state’s law would violate local public policy. Couples who relocate or own property in multiple states should have the agreement reviewed by an attorney licensed in their current state of residence to confirm the waiver still holds up.
Changing the Waiver After the Wedding
A prenuptial agreement is not permanently locked in once the wedding happens. Under the framework adopted in most states, spouses can amend or revoke a premarital agreement at any time after marriage, but the change must be in writing and signed by both parties. No consideration is required, meaning neither spouse has to offer something new in exchange for the modification. Verbal promises carry no legal weight. When a prenup is substantially revised or replaced after the wedding, the new document is typically called a postnuptial agreement, and it faces its own enforceability requirements, which in many states are slightly stricter than those for prenups.
This matters because circumstances change. A couple that agreed to waive support when both were earning well might want to add a support provision after one spouse leaves work to care for aging parents or young children. Updating the agreement proactively, while both parties are cooperating, is far easier than fighting about enforceability during a divorce.