California's Family Code sets specific requirements for prenuptial agreements, from mandatory waiting periods to independent counsel rules. Neptune's process is designed around these requirements from the start.
$5,000 flat fee per couple. Two independent attorneys included.
California Family Code Sections 1600–1617 govern prenuptial agreements. These are the key requirements your attorneys will address.
California law requires that the party against whom enforcement is sought had at least 7 days between being presented the final agreement and signing it. This is one of the strictest timing rules in the nation.
If a party does not have independent legal counsel, the agreement may not be enforceable unless that party was given a reasonable opportunity to obtain counsel and was fully informed of the terms in a language they understand.
California requires fair and reasonable disclosure of each party’s property and financial obligations. Without complete disclosure, the agreement may be subject to challenge.
A California prenup cannot be unconscionable at the time of enforcement. Courts may review whether the terms were fundamentally unfair given the circumstances that existed when enforcement is sought.
A provision modifying or eliminating spousal support is enforceable only if the party against whom it is sought had independent counsel at the time of signing. Your attorney can review how this applies.
California's strict prenup requirements did not emerge in a vacuum. Landmark court cases shaped how the state's legislature and courts approach enforceability today.
California Supreme Court • 24 Cal. 4th 1
In 1988, Barry Bonds, then a rising star with the Pittsburgh Pirates, married Sun in Las Vegas. The couple signed a prenuptial agreement the day before the wedding. Sun, who had emigrated from Sweden and for whom English was a second language, signed without independent legal counsel.
When the couple divorced in 1994 (Bonds was by then earning approximately $8 million per year with the San Francisco Giants), Sun challenged the prenup as involuntary. She argued that the circumstances surrounding signing, the timing, the lack of independent counsel, and the language barrier, rendered her agreement involuntary.
The California Supreme Court ultimately upheld the agreement in 2000, establishing what became known as the "totality of circumstances" test for voluntariness. The court considered that lack of independent counsel isone factor among many, not an automatic ground for invalidation. The court weighed Sun's sophistication, whether she was given an opportunity to consult an attorney, and whether she appeared to understand the agreement's terms.
This case directly influenced why California now has some of the strictest prenup requirements in the country. The legislature responded by codifying protections that address the very circumstances the Bonds court considered:
Your attorney can explain how current California law has evolved since this ruling and what it means for your agreement's enforceability.
Property rules
Without a prenup, California law applies default rules to characterize property as either separate or shared. Under these default rules, income earned during marriage, stock that vests during marriage, and business appreciation during marriage may all be treated as shared, regardless of which partner earned it or whose name is on the account.
For couples in California's tech sector, this creates particular complexity. RSUs, stock options (ISOs and NSOs), and startup equity that vest on a schedule spanning years before and during a marriage can raise difficult characterization questions. Determining what portion may be treated as separate versus shared property is one of the biggest areas of conflict in California divorces involving equity compensation.
California has the highest concentration of tech workers in the nation, and equity compensation is often the single largest asset a couple needs to address. A prenuptial agreement allows you to define how vesting equity, future income, and business interests are treated, removing ambiguity before it becomes a dispute.
Common assets addressed
Startup equity disputes are one of the fastest-growing areas of high-asset California divorces. When a company is pre-IPO or pre-acquisition, valuation itself becomes contested. Your attorney can review how California courts have approached these questions and what protections may be available.
California's concentration of tech companies, entertainment industry, and high-value real estate means many couples have complex assets to address.
California prenups require both partners to have independent counsel for strongest enforceability. Here's how costs compare.
Traditional firms
$5,000–$20,000+
per couple
$2,500–$10,000+ per attorney
Hourly billing, variable total
Two separate retainers required
Neptune
$5,000
flat fee, both attorneys included
No hourly billing. No payment to start.
Rush pricing applies when the wedding is within 45 days.
California's requirements: the 7-day waiting period, independent counsel, and full disclosure: are built into every step.
Answer questions about your financial situation and goals. Neptune connects each partner with an independent California-licensed attorney.
Your drafting attorney prepares the agreement. The reviewing attorney represents the other partner independently. California’s disclosure requirements are addressed throughout.
The 7-day waiting period is built into the timeline. Your attorneys coordinate signing logistics to meet California Family Code requirements.
Turnaround is typically around 3 to 4 weeks when both partners use Neptune attorneys.
“Neptune make it so easy to find qualified reasonably priced lawyers I could trust for creating a prenup. And the process of asking questions to an AI chatbot really helped surface critical conversations early with my partner. Highly recommend checking them out!”
Tracy & Steven
Physician & Software Engineer
“The lawyer that I found through Neptune was such a valuable asset for our prenup not only as a sounding board to make sure our needs were met, but also to help write a document that me and my partner agree on while also ensuring it will hold up in court.”
Martha
Product Manager
“Process was surprisingly easy and fast! I expected tons of back and forth with lawyers, but Neptune streamlined everything beautifully. From start to finish, we had our signed prenup in about 6 weeks. Loved the flat fee pricing.”
Liza & Patrick
Account Executive & Investment Associate
California Family Code Section 1615(c)(2) requires that the party against whom enforcement is sought had at least 7 days between first being presented the final agreement and signing it. This waiting period gives both parties time to review the document with their attorney and consider its terms. Neptune’s process accounts for this requirement in timeline planning.
While California does not technically require both parties to have independent counsel, a prenup may not be enforceable against a party who did not have their own attorney unless specific conditions are met, including that they were given a reasonable opportunity to seek counsel and were fully informed of the agreement’s terms. Neptune pairs each partner with a separate, independent attorney to address these requirements.
California has specific rules for how property acquired during marriage is treated. Without a prenup, the default rules under California law apply. Your attorney can review what those rules mean for your specific situation, including how income, investments, and property purchased during the marriage may be characterized.
A California prenup can include provisions about spousal support, but enforceability depends on whether the party against whom the waiver is sought had independent legal counsel at the time of signing. Your attorney can explain how California Family Code Section 1612(c) applies and what options may be available.
Prenuptial agreements in California typically cost $2,500 to $10,000 or more per attorney, depending on complexity and the firm. Since California requires both parties to have counsel for strongest enforceability, couples often pay $5,000 to $20,000 or more total. Neptune offers a $5,000 flat fee that includes two independent attorneys: one for each partner.
When both partners use Neptune attorneys, turnaround is typically around 3 to 4 weeks. California’s 7-day waiting period is factored into the timeline. Complex financial situations, such as multiple business interests, significant equity compensation, or substantial real estate holdings, may require additional time for thorough review.
In In re Marriage of Bonds (2000), the California Supreme Court considered whether a prenup signed the day before a Las Vegas wedding, by a party without independent counsel whose first language was not English, was voluntary. The court upheld the agreement, establishing that lack of independent counsel is one factor in a totality-of-circumstances test, not an automatic ground for invalidation. This landmark case shaped how California courts evaluate prenup enforceability and influenced the state’s later adoption of stricter protections, including the 7-day waiting period. Your attorney can explain how current California law has evolved since this ruling.
Two independent California-licensed attorneys. One flat fee. No payment required to begin.
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