A founder who owned a company before marriage, then spent the next decade building it into something far larger, faces a specific question in a California divorce: how much of that growth belongs to the marriage. The answer turns on two competing formulas, and the difference between them can be measured in millions. Pereira and Van Camp are the two methods California courts use to apportion the increase in value of a separate-property business between separate and community property.
Borna Houman Law represents business owners, founders, and their spouses in high-net-worth divorces across Los Angeles County, from Beverly Hills and Brentwood to Malibu and the Westside. When a separate-property business grew during a marriage, the apportionment method is often the single largest financial issue in the case.
Key Takeaway: In California, a business one spouse owned before marriage stays that spouse’s separate property under Family Code section 770, but the growth in its value during the marriage may be partly community property. Courts use the Pereira formula when the owner’s personal effort drove the growth, and the Van Camp formula when the business’s own capital or market forces drove it. The court picks whichever achieves substantial justice, and the choice can move millions of dollars between the two estates.
What are the Pereira and Van Camp formulas in California?
Pereira and Van Camp are the two apportionment methods California courts use to divide the increase in value of a separate-property business during a marriage. Both come from cases more than a century old. Pereira v. Pereira was decided in 1909, and Van Camp v. Van Camp in 1921. Many online summaries get those dates wrong, but the rules they set still control every business-apportionment fight in California family court today.
Pereira credits the community for the owner-spouse’s labor. It assumes the growth came mostly from the spouse’s personal time, skill, and effort during the marriage, all of which are community contributions. The court awards the separate estate a fair rate of return on the business’s value at the date of marriage, and treats the rest of the growth as community property.
Van Camp credits the capital. It assumes the growth came mostly from the character of the business itself, market conditions, or the value of the underlying assets, rather than the spouse’s labor. The court assigns a reasonable salary to the community for the owner’s work, subtracts the compensation and benefits the family already received, and leaves the remaining growth as separate property.
When does a court apply Pereira instead of Van Camp?
A court applies Pereira when the spouse’s personal effort was the main engine of growth, and Van Camp when the business itself or the market did the work. A hands-on founder who ran daily operations and drove revenue through personal skill usually points the court toward Pereira. A largely passive owner whose business climbed because of a rising market, a strong management team, or appreciating real estate points toward Van Camp.
California courts are not locked into either formula. Under Beam v. Bank of America (1971), the trial court chooses the approach that achieves substantial justice between the parties, and it can decline to apply either one mechanically. Some courts use a hybrid, applying Pereira to one period and Van Camp to another when the business changed character mid-marriage. The flexibility is real, which is why the apportionment is argued, not calculated by rote.
How does the apportionment math work?
The two formulas can produce dramatically different splits on identical facts. Consider a founder who owned a company worth $1.5 million at the date of marriage. Ten years later, at the date of separation, the company is worth $10 million, and the founder ran it full time throughout the marriage.
Under Pereira, the separate estate receives a fair return on the starting value. California courts frequently use the legal interest rate of 10 percent simple per year. That gives the separate estate the original $1.5 million plus $1.5 million in return over ten years, for $3 million separate, leaving $7 million as community property. Under Van Camp, the court values the community’s labor at a reasonable salary, say $500,000 per year, or $5 million over the decade, then subtracts the roughly $4.5 million the family already drew in salary and benefits, leaving about $500,000 community and $9.5 million separate.
| Approach | When it applies | Separate property | Community property |
|---|---|---|---|
| Pereira | Owner’s labor drove the growth | $3.0 million | $7.0 million |
| Van Camp | Capital or market drove the growth | $9.5 million | $0.5 million |
On these numbers, the choice of formula moves $6.5 million between the estates. That swing is why the apportionment analysis, and the expert testimony behind it, deserves more attention than almost any other issue in a high-net-worth business divorce.
What does California law say about separate-property business growth?
The starting point is characterization. Under Family Code section 770, property a spouse owns before marriage is separate property, and under Family Code section 760, earnings and accumulations during marriage from a spouse’s labor are community property. A separate-property business that grows through community labor sits at the intersection of both rules, which is exactly the problem Pereira and Van Camp solve.
The burden matters. The owner-spouse generally must prove the separate-property component, often through forensic accounting and a business valuation as of two key dates: the date of marriage and the date of separation. In our experience, cases are won or lost on the quality of the date-of-marriage valuation, because a low or undocumented starting value inflates the apparent community share under either formula. Establishing the date of separation precisely is equally important, and it interacts with the analysis we cover in our guide to separate property tracing.
How do high-net-worth divorces complicate the apportionment?
Wealthy business owners rarely hold a single, simple company. They hold operating businesses, holding entities, real estate partnerships, and equity stakes, and each can require its own apportionment. A founder might have grown an operating company through personal effort, pointing to Pereira, while a passive real estate portfolio appreciated on its own, pointing to Van Camp. The same divorce can require both formulas applied to different assets.
Compensation structure adds another layer. When the owner took a below-market salary and reinvested everything, the Van Camp subtraction shrinks and the community share grows. When the owner paid the family generously, the Van Camp result favors the separate estate. Professional practices follow related rules, which we address in our guide to valuing a professional practice. These cases call for the kind of coordinated forensic and legal work our high-net-worth divorce attorneys build around every complex estate.
How do you protect a separate-property business in a California divorce?
Documentation is the strongest protection, and it starts long before any divorce. A defensible valuation of the business as of the date of marriage, kept with the records, anchors the separate-property claim. Paying the owner a market salary during the marriage strengthens a later Van Camp position, because it shows the community was already compensated for its labor.
A prenuptial or postnuptial agreement can settle the characterization question outright and remove the apportionment fight entirely. When no agreement exists, the next best step is early retention of a forensic accountant who can build both valuations and model both formulas before positions harden. The most common mistake we see is an owner who waits until litigation to think about the date-of-marriage value, by which point the records are thin and the other side’s expert fills the gap.
Frequently asked questions about Pereira and Van Camp in California
What is the difference between Pereira and Van Camp?
Pereira credits the community for the owner-spouse’s labor and gives the separate estate only a fair return on the starting value. Van Camp credits the business’s capital and gives the community only a reasonable salary for the labor. Pereira usually favors the non-owner spouse, and Van Camp usually favors the owner.
Which formula will a California court use?
The court chooses the formula that achieves substantial justice under Beam v. Bank of America. It generally applies Pereira when the owner’s effort drove the growth and Van Camp when capital or the market did, and it can blend the two across different time periods or assets.
Is a business I owned before marriage safe in a California divorce?
The business itself remains your separate property under Family Code section 770, but the growth in its value during the marriage can be partly community property. How much depends on whether Pereira or Van Camp applies and on the date-of-marriage and date-of-separation valuations.
What rate of return do courts use under Pereira?
California courts commonly apply the legal interest rate of 10 percent simple per year to the separate estate’s starting value, though a court can use a different reasonable rate if the evidence supports it.
Do I need a forensic accountant for a business apportionment case?
In almost every high-net-worth case, yes. A forensic accountant establishes the two valuations, models both formulas, and provides the expert testimony the court relies on. The quality of that work usually decides the outcome.
Speak with a high-net-worth divorce attorney
When a separate-property business grew during a marriage, the apportionment method can move millions between the estates, and the analysis rewards early, careful preparation. Borna Houman Law represents founders and their spouses in complex California business divorces with discretion and precision. Call (888) 42-BORNA for a confidential consultation.
This article is general information about California law and is not legal advice. Every business and marriage is different. For advice about your specific situation, consult a licensed California attorney.