California Prenuptial Agreement Requirements: What Makes a Prenup Enforceable?

A prenuptial agreement, referred to under California law as a premarital agreement, can be one of the most important financial planning tools available to couples before marriage.

A well-drafted California prenuptial agreement can provide certainty regarding property rights, income, businesses, investments, debts, and spousal support. It can also significantly reduce uncertainty and litigation in the event of divorce.

But simply signing a prenup does not necessarily mean that every provision will be enforceable.

California has specific statutory requirements governing premarital agreements. When those requirements are not followed, a court may ultimately determine that some or all of the agreement is unenforceable.

For individuals considering a California prenup, understanding these requirements before signing the agreement is critical.

What Is a Prenuptial Agreement in California?

A prenuptial agreement is a contract entered into by two prospective spouses in contemplation of marriage. Under California law, the agreement becomes effective upon marriage.

California’s Uniform Premarital Agreement Act is found in Family Code sections 1600 through 1617.

A California premarital agreement may address a broad range of financial issues, including the parties’ respective rights and obligations concerning property, the disposition of property upon separation, divorce, death, or another specified event, estate planning, life insurance, and other matters that do not violate public policy.

For many couples, the purpose of a prenup is not simply to determine what happens in a divorce. A carefully drafted agreement allows both parties to understand their financial rights and obligations before entering into marriage.

What Makes a Prenup Valid in California?

There is no single factor that determines whether a California prenuptial agreement will be enforceable.

Instead, California law imposes several requirements designed to ensure that premarital agreements are entered into knowingly and voluntarily.

Among the most important considerations are:

• The agreement must be in writing and signed by both parties;
• The agreement must be entered into voluntarily;
• The parties must comply with California’s timing requirements;
• Financial disclosure requirements must be satisfied;
• The parties must have appropriate access to independent legal counsel or properly waive counsel where permitted; and
• Certain provisions, particularly those concerning spousal support, are subject to additional requirements.

Because enforceability is highly dependent upon the circumstances surrounding the negotiation and execution of the agreement, the process of preparing a prenup can be just as important as the language contained in the final document.

California’s Seven-Day Rule for Prenuptial Agreements

One of the most frequently misunderstood California prenup requirements is the so-called seven-day rule.

Under Family Code section 1615, a premarital agreement is deemed involuntary unless certain statutory requirements are satisfied. Among them, the party against whom enforcement is sought generally must have been given at least seven calendar days between the time that party was first presented with the final agreement and the time the agreement was signed.

This requirement is one reason couples should not wait until immediately before their wedding to begin negotiating a prenup.

Trying to negotiate and execute a significant financial agreement days before a wedding can create unnecessary enforceability issues. It can also create arguments regarding pressure, voluntariness, and whether the parties had sufficient opportunity to understand and negotiate the agreement.

As a practical matter, couples contemplating a prenup should begin the process well before the wedding date.

Does Each Person Need Their Own Prenup Attorney?

Independent legal representation is extremely important when negotiating a California premarital agreement.

Each party should have the opportunity to consult with his or her own attorney. One attorney cannot ethically represent both prospective spouses in negotiating competing contractual rights.

California law contains specific requirements concerning independent counsel and the waiver of counsel. The requirements become particularly important when an agreement contains a provision modifying or waiving spousal support.

Under Family Code section 1612, a provision regarding spousal support is not enforceable against a party who was not represented by independent counsel when the agreement containing that provision was signed. California law also provides additional safeguards relating to whether a spousal-support provision was unconscionable at the time enforcement is sought.

For that reason, parties contemplating a waiver or limitation of future spousal support should each retain independent California family law counsel.

Financial Disclosure Is an Important Part of the Prenup Process

A prenup should not be negotiated in a financial vacuum.

California law addresses whether a party received fair, reasonable, and full disclosure of the other party’s property and financial obligations—or voluntarily and expressly waived additional disclosure in writing under the circumstances permitted by law.

In practice, financial disclosure may include information concerning:

• Real estate;
• Bank and brokerage accounts;
• Retirement accounts;
• Business interests;
• Investments;
• Stock and equity compensation;
• Cryptocurrency and other digital assets;
• Significant personal property;
• Debts and liabilities; and
• Other material financial interests.

This is particularly important in high-net-worth prenuptial agreements, where the parties may own businesses, investment portfolios, multiple properties, trusts, or other complex assets.

Proper disclosure can also help establish that both parties understood the financial circumstances underlying the agreement when they entered into it.

Can a California Prenup Protect Separate Property?

Yes.

One of the primary reasons individuals seek a California prenuptial agreement is to establish how property will be characterized during the marriage.

Without a premarital agreement, California’s community property laws generally govern the characterization and division of property upon divorce.

A prenup can address property owned before marriage and can establish contractual rules regarding property or income acquired during marriage, subject to California law.

For example, a prenup may address:

• A home owned before marriage;
• Investment accounts;
• Business interests;
• Appreciation of separate property;
• Income earned during marriage;
• Retirement contributions;
• Property acquired during marriage; and
• The payment of expenses or debts.

This can be particularly valuable when one or both parties enter the marriage with substantial assets.

Prenuptial Agreements for Business Owners

Business owners often have additional reasons to consider a prenup.

A business may have been created before marriage, but events occurring during the marriage can create complicated characterization, valuation, and reimbursement issues.

A properly structured premarital agreement can establish the parties’ intentions concerning the ownership of a business and potentially address issues such as business appreciation, income, distributions, reinvested earnings, and the acquisition of additional business interests.

For entrepreneurs, physicians, attorneys, executives, investors, and other professionals, addressing these issues before marriage can provide substantially greater financial certainty.

Can a California Prenup Waive Spousal Support?

California premarital agreements may contain provisions addressing spousal support, but these provisions require particular care.

As discussed above, California law imposes additional requirements on spousal-support provisions, including an independent-counsel requirement. A court may also decline to enforce a spousal-support provision if it is unconscionable at the time enforcement is sought.

Accordingly, a spousal-support waiver should not simply be inserted into a generic prenup template.

The parties’ respective circumstances and the potential enforceability of the provision should be carefully evaluated by experienced independent attorneys.

What Can a Prenup Not Do?

Although California prenups can address a wide variety of financial issues, they cannot determine everything that may arise from a future marriage.

Most importantly, prospective spouses cannot use a premarital agreement to predetermine child custody or child support in a manner that eliminates the court’s authority and obligations concerning children.

Custody determinations are governed by the child’s best interests, and a child’s right to support cannot simply be contracted away by the parents before marriage.

Prenups should therefore focus primarily on the parties’ financial and property rights rather than attempting to predetermine future parenting arrangements.

Are Online or Template Prenups Enforceable in California?

The fact that an agreement came from an online service or template does not, standing alone, answer whether it will ultimately be enforceable.

The larger concern is whether the agreement and the process surrounding its execution complied with California law.

Prenuptial agreements are highly individualized contracts. A generic form may not adequately address California community property law, separate property tracing, business interests, investment growth, estate planning concerns, spousal support, or the parties’ particular financial circumstances.

There is also a significant difference between having a document and having a carefully negotiated agreement designed with future enforceability in mind.

For individuals with substantial assets, businesses, real estate, significant income, or complex financial circumstances, individualized legal advice is particularly important.

When Should You Start a Prenup in California?

Earlier is generally better.

Couples frequently underestimate the amount of time required to prepare a thoughtful premarital agreement. The process may involve financial disclosure, an initial draft, review by independent counsel, negotiation, revisions, and execution.

Waiting until the wedding is approaching creates unnecessary pressure.

Starting early gives both parties sufficient time to obtain counsel, understand their rights, exchange relevant financial information, negotiate proposed terms, and make informed decisions without the pressure of an imminent wedding date.

Why the Prenup Process Matters

One of the most important principles in California premarital-agreement law is that enforceability begins with the process, not merely the signature.

A carefully drafted agreement should create a record demonstrating that the parties had sufficient time, information, and legal advice to make informed decisions.

That means paying attention not only to what the agreement says, but also to:

• When negotiations began;
• When drafts were exchanged;
• Whether each party had independent counsel;
• Whether adequate financial information was exchanged;
• Whether the parties had meaningful opportunities to negotiate; and
• Whether the agreement was executed sufficiently in advance of the wedding.

A prenup is intended to create certainty. Cutting corners during the preparation and execution process can undermine that very purpose.

Speak With a California Prenuptial Agreement Attorney

A prenuptial agreement is not simply a document to sign before getting married. It is an important financial contract that can affect property rights and financial obligations for years—or decades—to come.

At Atighechi Law Group, P.C., we represent individuals in Los Angeles and throughout California in the preparation, negotiation, and review of prenuptial and premarital agreements, including agreements involving substantial assets, businesses, real estate, investments, and complex financial circumstances.

Maryam Atighechi is a Certified Family Law Specialist with extensive experience in California family law matters.

If you are considering a prenup, beginning the process early allows you and your future spouse the time necessary to thoughtfully address your financial rights and obligations before marriage.

Contact Atighechi Law Group, P.C. to schedule a consultation regarding a California prenuptial agreement.

This article is provided for general informational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship.