What to know:
- Most prenups cover four core areas: separate versus marital property, how assets and debts get divided if the marriage ends, spousal support, and inheritance or estate rights.
- The separate-property clause is the most common and usually the anchor: it lists what each partner brings in and keeps that property from becoming divisible marital property later.
- Prenups are recognized in the District of Columbia and all 50 states, and twenty-nine states plus D.C. have adopted the Uniform Premarital Agreement Act or its successor, according to the Uniform Law Commission.
- Lifestyle and infidelity clauses show up in some agreements, but courts often decline to enforce them, so they carry less legal weight than the financial terms.
- First lets couples work through each of these standard clauses together in plain language, with an option to add independent attorney involvement for the terms that need it.
If you are looking into a prenup, the question underneath the research is usually pretty simple: what am I actually agreeing to? Not the legal theory, not the worst-case scenarios, but the specific terms that go on the page. The good news is that most prenups are less mysterious than they look. They are built from a shared set of building blocks, and once you know what those blocks are, the whole document becomes readable.
That shared structure is not an accident. The Uniform Premarital Agreement Act, promulgated by the Uniform Law Commission in 1983, lays out an illustrative list of matters a premarital agreement can cover, and twenty-nine states plus D.C. have adopted that act or its successor. So when we talk about "typical" terms, we are describing a genuine pattern, not a guess. Let's walk through it clause by clause.
What counts as a "typical" prenup, anyway?
The word "typical" matters here, because couples sometimes imagine a prenup as an exotic, custom-built legal instrument. Most are not. Most are assembled from the same core clauses, arranged to fit one couple's situation.
Under the Uniform Premarital Agreement Act, an agreement must be in writing and signed by both parties. That formality is the baseline everywhere, though individual states layer on their own requirements like notarization or acknowledgment. Beyond that, the substance tends to cluster around a familiar set of topics: what each person keeps as their own, what the couple treats as shared, how debt is handled, whether support is paid, and what happens to an estate. If you want a companion way to think about the assets going into all of this, our guide to what a prenup protects walks through the inventory side of the process.
What are the most common prenup clauses?
Most prenups are built from separate-property clauses, marital-property and income clauses, debt allocation, spousal-support terms, and estate or inheritance provisions. That five-part spine covers the questions a court would otherwise answer for you under your state's default rules. A prenup lets you answer them yourselves, in advance, with full information.
Here is the standard inventory at a glance, along with what each clause does and the options couples typically weigh.
| Clause | What it does | Typical options |
|---|---|---|
| Separate property | Keeps assets owned before marriage, plus gifts and inheritances, with the original owner | List each item; specify that appreciation stays separate |
| Marital property | Defines what the couple acquires together and how it is treated | Pool income vs. keep separate; how to split shared property |
| Debt allocation | Assigns responsibility for existing and future debts | Keep each partner's debt separate; share certain debts |
| Spousal support | Addresses whether support is paid if the marriage ends | Full waiver, capped amount, or defined amount and duration |
| Estate and inheritance | Addresses what a surviving spouse can claim and how separate property passes | Waive or preserve elective share; protect family assets |
| Financial management during marriage | Sets how money is handled while married | Joint account, separate accounts, or a mix |
None of these clauses is exotic. Each one answers a practical question a couple would rather settle calmly now than argue about later. The rest of this post takes the ones that carry the most weight and explains what they do for a real couple.
What does the separate-property clause do?
The separate-property clause is the most common clause in a prenup, and it usually serves as the anchor the rest of the agreement builds on. It lists the assets each partner owned before the marriage, plus gifts and inheritances they receive during it, and states that those assets stay that partner's alone.
Why does this clause do so much heavy lifting? Because without it, the line between "yours" and "ours" can blur over the course of a marriage. Say you inherit money and deposit it into a joint account you both use for household expenses. That is commingling (mixing separate property with joint funds), and over time a court may treat the commingled money as shared marital property. A separate-property clause, paired with careful record-keeping, is designed to keep that from happening by naming the asset and stating clearly that it remains separate.
A well-drafted separate-property clause often goes one level deeper and addresses appreciation: if a premarital investment or a family business grows in value during the marriage, the clause can specify that the growth stays separate too. This is where couples with a business, real estate, or investment accounts tend to spend the most time. If this is the clause that matters most for you, our deep dive on the separate-property clause covers the details.
How do prenups handle debt and spousal support?
Two of the most practical clauses in a typical prenup deal with debt and support. They tend to matter to couples for different reasons, but both come down to the same idea: deciding in advance who is responsible for what.
Start with debt. The debt-allocation clause assigns responsibility for existing and future obligations. Many couples use it to keep each partner's premarital debt separate, so that one person's student loans or credit-card balance does not become the other's problem if the marriage ends. Couples can also agree to share certain debts, like a mortgage on a home they buy together. If one of you is bringing significant debt into the marriage, our guide to prenups when one partner has debt covers how couples typically designate that debt as one partner's responsibility.
Spousal support (often called alimony) is the other big one. Terms here range across a spectrum: some couples waive support entirely, some cap it at a set amount, and some define a specific amount and duration tied to the length of the marriage. States limit how far a waiver can go. A court may decline to enforce a support waiver that would leave one spouse dependent on public assistance, a limit codified in state versions of the model act such as Nevada Revised Statutes Chapter 123A. Some states also require that each partner have independent counsel before a support waiver will hold up.
That last point matters for how you approach this clause. A spousal-support waiver is not a simple form field you check off. It often needs to be worked through with an attorney, both because the rules vary and because the stakes are high. Our overview of how spousal support works explains the range of options in plain language before you sit down to decide.
Which "typical" clauses might a court not enforce?
Not every clause a couple wants to include will hold up. This is where the financial clauses part ways with what are sometimes called lifestyle or infidelity clauses: terms that try to govern personal conduct rather than property.
Lifestyle clauses can cover almost anything a couple imagines. Weight ranges, social-media rules, how often the in-laws visit, penalties for cheating. Couples sometimes add them to set expectations, and there is nothing wrong with talking through those expectations together. The legal reality is that courts often decline to enforce these terms, because many states view personal-conduct provisions as against public policy. The financial clauses in a prenup carry real legal weight; the lifestyle clauses carry far less, and often none.
There is also a category of terms a prenup cannot decide at all. A prenup cannot pre-decide child custody or child support. Courts determine those based on the child's best interests at the time of a divorce, regardless of what an agreement says, a principle reflected in American Bar Association guidance on family law. If you find a template that promises to lock in a custody arrangement, that is a sign to be skeptical. Our post on whether lifestyle clauses in prenups are enforceable goes deeper on where the line falls.
One clause that does carry weight, and that nearly every valid agreement includes, is full financial disclosure. Both partners typically attach schedules of their assets, debts, income, and expected inheritances. Incomplete disclosure is one of the most common reasons a court sets a prenup aside, so this step is part of almost every enforceable agreement. Our explainer on why full financial disclosure matters walks through what goes on those schedules.
Do typical terms change from state to state?
The clauses themselves are remarkably consistent from one state to the next, which is what the Uniform Premarital Agreement Act was designed to accomplish. What terms hold up, though, depends on state law and proper procedure, not the wording of a clause alone.
Two things vary. First, the procedural rules. Some states require a waiting period between when the final draft is delivered and when it is signed; others require notarization or independent legal counsel for certain waivers. These are the kinds of requirements that decide whether an otherwise sound agreement survives a challenge. Second, the substantive limits. State codifications of the model act, like Nevada's Chapter 123A, spell out both what parties may contract over and where the law draws the line, such as the public-assistance exception to support waivers.
If you live in one of the many equitable-distribution states rather than a community-property state, it helps to know that "equitable" does not always mean "equal." Courts in those states divide marital property fairly based on a range of factors, and a prenup is one way to define what "fair" looks like for your situation before the question ever reaches a judge. The practical takeaway: confirm your state's specific requirements, because the same clause can be enforceable in one state and vulnerable in another depending on how the process was handled.
Frequently Asked Questions
What are the most common clauses in a prenup?
Most prenups include a separate-property clause, a marital-property clause, a debt-allocation clause, a spousal-support clause, and estate or inheritance provisions. These handle who keeps what they brought in, how shared assets and debts are split, whether support is paid, and what a surviving spouse can claim.
What is a separate-property clause?
A separate-property clause lists the assets each partner owned before the marriage, plus gifts and inheritances received during it, and states that those assets stay that partner's alone. It is usually the anchor of a prenup because it keeps premarital property from becoming divisible marital property.
Can a prenup waive spousal support?
Many prenups address spousal support, and couples can waive it, cap it, or set a defined amount and duration. Rules vary by state, and a court may decline to enforce a waiver that would leave one spouse dependent on public assistance. Some states also require independent counsel for a support waiver.
Are lifestyle or infidelity clauses typical?
Some couples add lifestyle or infidelity clauses, but courts often decline to enforce them because they view many personal-conduct terms as against public policy. They can help set expectations, but they carry far less legal weight than the financial clauses in an agreement.
Can a prenup decide child custody or child support?
No. A prenup cannot pre-decide child custody or child support. Courts determine those based on the child's best interests at the time of a divorce, regardless of what an agreement says.
Does full financial disclosure need to be part of a prenup?
Yes. Both partners typically attach full schedules of their assets, debts, income, and expected inheritances. Incomplete disclosure is one of the most common reasons a court sets a prenup aside, so the disclosure step is part of nearly every valid agreement.
Building your own agreement with First
Once you see the pattern, a prenup stops feeling like a wall of legal text. Most agreements come down to a familiar set of clauses you can work through one at a time: what each of you keeps, what you share, how debt is handled, whether support is paid, and what happens to an estate. Take them in order and the whole document becomes a series of clear conversations rather than one intimidating one.
First lets couples build these terms together in plain language, one clause at a time, with the option to add independent attorney involvement for terms like support waivers and estate-rights waivers that need it. No PDFs, no hourly billing surprises, no back and forth with attorneys before you have even talked it through together. If you are ready to start the conversation, see how First works and take the clauses one at a time.
Methodology
The clause inventory in this post is drawn from the Uniform Premarital Agreement Act (Sections 2 and 3), promulgated by the Uniform Law Commission in 1983, which sets out the illustrative list of matters a premarital agreement may cover and the writing-and-signature requirement. State-specific limits, such as the public-assistance exception to support waivers, are drawn from state codifications of the model act, using Nevada Revised Statutes Chapter 123A as an example.
Sources
- Uniform Law Commission: Uniform Premarital Agreement Act (Sections 2 and 3), for the core clause list, the writing-and-signature formality, and the twenty-nine-states-plus-D.C. adoption figure.
- Nevada Revised Statutes Chapter 123A: state codification of the Uniform Premarital Agreement Act, for the statutory list of matters a prenup may cover and the public-assistance limit on support waivers.
- American Bar Association: family law guidance, for the point that child custody and child support cannot be pre-decided in a prenup.
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.