TL;DR: When one partner steps back from paid work to raise children, they take on real financial risk that state default law may not fully address. According to a 2023 Pew Research Center analysis of Census Bureau data, 26% of mothers and 7% of fathers are stay-at-home parents. A prenup can address spousal support, property division, and re-entry planning, though it cannot dictate child support or custody.Maybe you have already had the conversation. One of you loves the idea of being home with the kids in those early years, and the other is happy to be the steady paycheck while that happens. It feels like a good plan, and it usually is. But somewhere underneath the excitement, one question tends to sit quietly: what happens to the partner who steps away from paid work if things do not go as hoped?
That question deserves a real answer, and a prenup is one of the clearest ways to give it one. According to a 2023 Pew Research Center analysis of U.S. Census Bureau data, 26% of mothers and 7% of fathers are stay-at-home parents. Pew defines a stay-at-home parent as someone not employed for pay at all in the prior year, so these are households leaning on a single income. If you are planning to be one of them, a prenuptial agreement (commonly called a prenup) lets you and your partner decide together, in advance, how you will handle that chapter. If you are new to the idea entirely, our prenup primer is a good place to start.
The financial reality of stepping back from work Caregiving is work. It rarely shows up on a pay stub, but it carries measurable financial weight, and most of that weight lands on the partner who steps back. When someone leaves the workforce to raise children, they pause more than a salary. They pause retirement contributions, career progression, professional networks, and the raises that would have compounded over the years they were home.
That exposure is real regardless of who takes it on, and it is increasingly not only mothers. According to the same 2023 Pew analysis, dads make up about 18% of stay-at-home parents, up from 11% in 1989. The Census Bureau's Historical Families Tables put the number of stay-at-home fathers at roughly 2.1 million under its stricter definition. The arrangement goes both ways now, which means the planning conversation belongs to both partners, not one.
Family structures themselves are shifting too. The Census Bureau reported that married-couple households made up 47% of all U.S. households in 2022, down from 71% in 1970. Couples are building their arrangements more deliberately than earlier generations did, and a single-income caregiving chapter is one of the arrangements worth planning for out loud.
What state default law does (and doesn't) do for a stay-at-home parent Here is the part many couples do not realize: if you never sign an agreement, your state's default rules decide these questions for you. And those rules were not written with your specific situation in mind.
Prenups are recognized in all 50 states and D.C., but only 29 states plus D.C. have adopted the Uniform Premarital Agreement Act, a model law meant to make agreements more consistent from state to state. Without a prenup, the outcome depends on which category your state falls into. In community property states, most assets and debts acquired during the marriage are generally treated as jointly owned and divided equally. In equitable distribution states, courts divide marital property based on what they consider fair, and "equitable" does not always mean "equal." A judge weighs factors that can include the length of the marriage, each partner's earning capacity, and contributions to the household, which can include caregiving. But how much weight your years at home receive is up to that judge.
That uncertainty is the gap a prenup fills. You can see the shape of it in our guide to what happens if you don't have a prenup . State default law will give you an answer. It just might not be the answer either of you would have chosen while you were still on the same team.
What a prenup can actually address for this scenario A prenup lets the two of you write the terms yourselves, before the pressure of a separation ever enters the room. For a couple planning a stay-at-home chapter, several pieces are worth putting on the table.
Spousal support is often the centerpiece. A prenup can set an amount or a formula, sometimes tied to the number of years one partner spends out of the workforce. Some states require that the at-home partner have independent counsel for a support-related waiver to hold up, so this is an area where the details matter. Our overview of how spousal support works walks through the basics.
Property division is the second piece. A prenup can define what counts as separate property (assets one partner brought in or keeps individually) versus marital property, and it can spell out how caregiving contributions are credited when things are divided. Third, a prenup can build in re-entry or education funds: a lump sum, or money set aside for retraining or schooling, meant to help the at-home partner rebuild earning power after years away. This is sometimes called a career-sacrifice or re-entry clause, and attorneys report growing interest in these provisions. If you want more on protections the at-home partner might request, see what a woman should ask for in a prenup , which applies regardless of gender.
Finally, a prenup can address life insurance indirectly. It can require the earning partner to maintain a policy naming the at-home partner or the children as beneficiaries. The prenup sets the obligation; the actual policy and your estate documents do the work of carrying it out.
The table below shows the line between what a prenup can address and where it stops.
Topic
Can a prenup address it?
Notes
Spousal support / alimony
Yes
Can set an amount or formula; some states require independent counsel for a waiver
Property division
Yes
Define what's separate vs. marital and how caregiving is credited
Re-entry / education funds
Yes
Lump sum or funds for retraining tied to years at home
Life insurance beneficiary
Yes, indirectly
Prenup can require it; pair with an actual policy and estate documents
Child support
No
Decided by courts at separation based on the child's best interests
Child custody / caregiving role
No
Courts will not be bound by a prenup on custody
What a prenup cannot do: child support and custody This is an important limit, and it is worth stating plainly: a prenup cannot conclusively determine child custody, parenting time, or child support. Parents may record their intentions, but those provisions generally do not bind a court. Custody and parenting arrangements must be based on the child’s best interests at the time the issue arises, while child support remains subject to state law, applicable support guidelines, and the child’s right to adequate support.
You can read more about this boundary in our post on whether a prenup can address custody or caregiving .
A prenup primarily governs the financial relationship between the partners, including property rights, debts, estate-planning provisions, and, where permitted by state law, support between spouses. Decisions concerning the children remain subject to judicial review. Be cautious of any claim that a prenup can permanently lock in a custody schedule, waive child support, or guarantee a particular support amount.
Making it fair to both partners The strongest version of this agreement is one both partners see as fair, because a prenup written to protect only one person tends to invite challenges later. When the earning partner and the at-home partner build the terms together, each with room to ask questions and, where the state calls for it, independent counsel, the agreement reflects a shared plan rather than a one-sided defense.
That framing matters practically as well as emotionally. A prenup is mutual planning. It says: we both understand that one of us is taking on financial risk so our family works the way we want it to, and here is how we will handle that if our marriage ends. The earning partner gets clarity and predictability. The at-home partner gets terms agreed to while everyone is still on good footing.
Circumstances also change, which is why couples often build in a point to revisit the agreement when the at-home chapter begins. The plan you make while engaged may need a second look once a child arrives and the arrangement becomes real. Our post on what happens if things change after your prenup covers how couples handle that. If you find yourselves wanting to add or adjust terms after the wedding, that is a moment to consult independent legal counsel about a postnuptial agreement.
Frequently Asked Questions Can a prenup guarantee alimony for a stay-at-home parent? A prenup can set spousal support terms in advance, such as an amount or a formula tied to years out of the workforce, but no prenup guarantees a specific outcome. Enforceability is decided case by case, and some states require independent counsel for a support-related waiver to hold up in court.
Can a prenup include child support or custody for our kids? No. A prenup cannot bind a court on child custody, parenting time, or child support. Couples may document their intentions, but custody decisions must reflect the child’s best interests when the issue arises, and child support remains subject to state law and applicable support guidelines. A prenup can address matters between the partners, such as property, debts, and spousal support where permitted by law.
Does a stay-at-home parent even need a prenup? Often the at-home partner benefits most. Without an agreement, they rely on state default rules, which may not fully account for unpaid caregiving. A prenup can spell out support, property division, and re-entry help, replacing uncertainty with terms both partners agreed to in advance.
What can protect the at-home partner if the earning spouse dies? Couples often pair a prenup with life insurance naming the at-home partner or children as beneficiaries. A prenup can also address how property is handled, but life insurance and estate documents such as a will or trust do the heavy lifting on death, so consider them together with independent counsel.
What is a "career sacrifice" or re-entry clause? It is a provision that anticipates one partner pausing paid work to care give and sets terms to help them recover financially, such as funds for retraining, education, or a lump sum tied to years at home. It aims to treat unpaid family work as having real value.
Planning this with First If you and your partner are planning for a chapter where one of you steps back from paid work, First can help you put fair terms in writing before the wedding, on your timeline and without office visits. No PDFs, no hourly rates, no back and forth with attorneys unless you want it. When you're ready, you can start building your agreement with First .
You are making a thoughtful decision for both of you, and doing it now, with full information and time to talk it through, is the point.
Prenup rules, spousal-support waivers, and required counsel vary by state, and some states require independent counsel for a support waiver to be enforceable. Child support and custody are decided by courts at the time of separation and cannot be pre-set in a prenup.
Methodology These figures are drawn from a 2023 Pew Research Center analysis of U.S. Census Bureau Current Population Survey (CPS/ASEC) data, covering parents ages 18 to 69 living with their own children under 18, where "stay-at-home parent" means not employed for pay in the prior calendar year, and from the Census Bureau's Historical Families Tables (2023). State-law characterizations reflect First's 2026 state-by-state review of UPAA adoption and property regimes.
Sources First is not a law firm. The information and tools provided by First on this site are not legal advice and not a substitute for the advice of an attorney.
