What Is a Prenup?
A prenuptial agreement — commonly called a prenup — is a written legal contract signed by two people before they get married. It sets out how property, debts, income, and spousal support will be handled during the marriage and in the event of a divorce or one spouse’s death. Without a prenup, California’s default community property laws apply automatically. Under California Family Code § 760, all income earned and assets acquired during the marriage are presumed to be equally owned by both spouses — regardless of who earned or purchased them.
A prenup allows couples to step outside those default rules and create their own financial framework, tailored to their actual circumstances. A prenup is not a sign that you expect the marriage to fail. It is a financial planning document — the same way a will is not a sign you expect to die tomorrow. Many couples find that the process of creating a prenup leads to some of the most productive financial conversations they have had as a couple.
What Does a Prenup Do?
A prenup gives folks the opportunity to opt out of California’s community property laws, which typically divide assets and debts equally between spouses.
With a prenup, couples can decide how they want to divide property and assets, which can help avoid lengthy and expensive court battles. A prenuptial agreement helps couples ensure that their wishes are respected and that their marriage and potential divorce are governed by their own rules, rather than by California’s default laws.
Prenups Set Marital Expectations
A prenup can outline each spouse’s financial roles and responsibilities during the marriage. For example, it may specify who will be responsible for paying bills, managing the household budget, and making financial decisions. It may also describe any financial goals or objectives the couple has agreed upon.
Plus, a prenuptial agreement can outline expectations for financial transparency and communication during the marriage. For example, it may require disclosure of all financial assets and liabilities. It’s more effortless to accomplish your financial goals when you and your partner create clear roles and expectations in a prenup.
Prenups Create Marital Rules
A couple can agree upon their own terms for dividing their property and assets in a prenup, which can differ from California’s laws. California is a community property state. This means that, by default, all property acquired during the marriage is equally owned by both spouses.
A couple may set their own rules for property division in a prenup. For example, they can decide to keep certain assets separate rather than treating them as community property, or they may agree to divide their assets in another way. Thus, a couple has greater control over their financial future.
Prenups Protect Both Spouses
A prenup protects both spouses when it’s tailored to your marriage. For example, a prenup may define the division of assets and property upon divorce, which prevents future disputes and provides clarity on financial matters. You can also draft it to protect the financial assets of one spouse from being used to pay off the debts of the other spouse.
What Does a Prenup Cover?
Prenuptial agreements may cover a wide range of issues, depending on the couple’s specific needs. Some of the issues that a prenup may cover include the following:
- The division of property and assets. A prenup can state how to divide property and assets if there’s a divorce.
- Spousal support. A prenup can set an amount or time period for spousal support payments or waive spousal support entirely.
- The responsibility for paying debt. A prenup can specify which spouse is responsible for paying the marital debt.
- Other financial responsibilities. A prenuptial agreement can outline the financial obligations of each spouse during the marriage, including the payment of bills, management of the household budget, and making financial decisions.
- Business ownership designation. If one spouse owns a business, a prenup may describe how the business will be treated in the event of a divorce (e.g., the business will be treated as the owner’s separate property).
- Designate separate property. A prenup can itemize the assets that should be considered separate property and not be subject to division in case of a divorce.
These are just some of the potential issues a prenup may cover. An attorney skilled in drafting California prenuptial agreements can advise you on the right provisions for your marriage.
In-Depth: What Clauses Are Most Important to Include in My Prenup?
What a Prenup Cannot Cover in California
Just as important as knowing what a prenup can do is knowing what it cannot do. Under California law, the following provisions are not enforceable in a prenuptial agreement:
- Child custody and child support. Courts retain full authority over issues involving children. A prenup cannot predetermine custody arrangements or set child support amounts — judges always decide these based on the child’s best interests at the time of the divorce.
- Illegal terms. Any clause that violates California law is unenforceable, and in some cases can jeopthe information iscardize the entire agreement.
- Lifestyle clauses. Provisions like infidelity penalties or behavioral requirements are generally not enforceable in California, and including them can put the entire agreement at risk. California is a no-fault divorce state.
- Waiving rights to public benefits. A spouse cannot be required to give up any rights to government assistance programs through a prenup.
- Terms that are unconscionable at the time of enforcement. Even if a prenup was fair when signed, a court may refuse to enforce specific terms that have become grossly unfair by the time of divorce.
Understanding these limits is part of why working with an experienced California prenup attorney matters. A well-drafted prenup avoids unenforceable terms — which could otherwise put the whole agreement at risk.
Do Prenups Work (Are they Enforceable)?
Prenuptial agreements can be effective in achieving their intended purpose. However, for a prenup to work, it must be legally enforceable. Generally, for it to be valid, the prenup must be:
- In writing—it must be written to be enforceable;
- Entered willingly—both spouses must enter into the agreement willingly, without coercion;
- Fair and reasonable—it must be fair and reasonable when signed rather than overly one-sided or oppressive;
- Fully disclosed—both spouses must fully disclose their financial assets and liabilities at the time they sign the agreement; and
- Properly executed—it must be signed and witnessed in accordance with California law.
Plus, a prenup must comply with California law and the Uniform Premarital Agreement Act to be valid. Thus, it’s critical that you hire a competent and knowledgeable attorney to draft your prenuptial agreement.
California’s 7-Day Rule: What It Means for Your Prenup
California has a specific legal requirement that many couples do not know about until it is almost too late: under California Family Code § 1615, a prenuptial agreement must be signed at least 7 calendar days after it is first presented to the other party in its final form. This means you cannot hand your partner a prenup and ask them to sign it the same day. Both parties must have a minimum of 7 days to review the agreement with their own independent attorney before signing.
If this waiting period is not met, a California court may refuse to enforce the prenup entirely — even if both parties signed it willingly. This is one of the most common reasons properly executed prenups are later thrown out. Start the prenup process at least 2–3 months before your wedding date, not 2 weeks before. Give both attorneys time to draft, negotiate, and finalize — then allow the 7-day window before signing.
Who Needs a Prenup?
Contrary to popular belief, prenuptial agreements benefit couples from all walks of life. They may be particularly useful where:
- The spouses have significant financial assets;
- One or both spouses have children from a previous relationship;
- One spouse is wealthier than the other;
- One or both spouses own a business; or
- One or both spouses have significant debts.
Ultimately, the decision to get a prenuptial agreement is a personal one and should be based on the unique circumstances of the couple. It is important for both spouses to fully understand the terms of the agreement and to enter into it willingly.
Frequently Asked Questions About Prenups in California
Can we change or cancel our prenup after we get married?
Yes. A prenuptial agreement is not set in stone forever. If your circumstances change, you and your spouse can mutually agree to amend, update, or completely revoke the agreement after you are married. However, just like the original prenup, any changes or cancellations must be done in writing and signed by both of you to be legally valid.
Can we just write our own prenup and get it notarized?
Technically yes, but it is highly discouraged. A notary public only verifies your identities and signatures; they do not check if the contract is legally sound. Because California’s family laws are incredibly strict, a DIY prenup is highly likely to contain unenforceable clauses or fail to meet strict disclosure requirements, making it useless in court.
Do we really both need our own attorney?
Yes, it is strongly recommended, and in some cases, effectively required. If your prenup includes any changes or waivers to spousal support (alimony), California law strictly requires that the spouse giving up their right to support be represented by independent legal counsel. Without it, the spousal support waiver will be thrown out.
Does a prenup mean we don’t need an estate plan?
No. While a prenup can dictate what property remains separate in the event of one spouse’s death, it does not replace a will or a trust. You still need a proper estate plan to name beneficiaries, appoint an executor, and ensure your assets are distributed smoothly without going through California probate court.
Contact Our Office for Help with Your Prenup
A prenuptial agreement can help you achieve your marital financial goals. It can also provide clarity in your relationship. However, you need a prenup tailored to your needs while complying with complex laws. Cyrus Pacific Law can help. We’ll draft a prenup to help you avoid financial pitfalls, all while treating your future spouse with fairness and respect. Contact us today.