Valuing assets in a California divorce involves three steps. First, each asset is sorted into community property, which is split equally, or separate property, which is not. Second, each community asset is given a dollar value, usually as close to trial as practicable. Third, where money was mixed, each spouse traces contributions to decide who is owed what.

Most people facing a divorce with a business, equity compensation, or a real estate portfolio already know California splits community property equally. What they are still working out is what "equally" means when the house was bought before the marriage, the company was built during it, and half the RSUs have not vested yet. A founder may be looking at an appraisal and wondering why it counts goodwill he considers his own reputation. A spouse may suspect the business is worth far more than the number on the table. Both are asking the same question: how does anyone arrive at the number?

This article walks through that chain the way it unfolds in a San Diego County case. It starts with characterization, then covers the valuation date, the methods used for each asset class, the experts involved, tracing, and the mistakes that most often move the final figure.

Community Property and Separate Property: The Threshold Question

California Family Code § 760 sets the starting point: "all property, real or personal, wherever situated, acquired by a married person during the marriage while domiciled in this state is community property." In practice, anything acquired during the marriage is presumed to belong to both spouses equally. The spouse who says otherwise carries the burden of proving it.

Family Code § 770 defines separate property. It covers property owned before marriage and property received during marriage by gift, bequest, devise, or descent. Bequest and devise mean an inheritance by will. Descent means an inheritance without one. It also covers the rents, issues, and profits of that property. Earnings after the date of separation are also separate, under a different section discussed below. An inheritance during marriage starts as separate property. It can lose that status depending on how it is handled.

Character can also change. A transmutation is a change in the character of property, such as separate to community or the reverse. Under Family Code § 852, a transmutation "is not valid unless made in writing by an express declaration" by the spouse whose interest is adversely affected. Casual statements do not count. Adding a spouse to a title is not always enough. Section 852 expressly leaves commingling to a separate body of law. Commingling means mixing separate and community funds. It does not transmute property by itself, but it can make separate property impossible to prove.

Quasi-community property follows a related rule. It is property acquired while living outside California that would have been community property if acquired here. It is generally treated like community property at divorce. This matters for executives who relocated to San Diego from another state.

Two patterns come up constantly in high-asset cases:

  • A business started before marriage. The business itself begins as separate property. But the owner's time, skill, and effort during marriage belong to the community. The increase in value those efforts produced may be partly community.
  • A pre-marital brokerage account that later received paycheck deposits. The original balance was separate. Every payroll deposit during marriage was community. After years of trades and withdrawals, sorting the two can take real work.

Cases in this region are filed in the Family Law Division of the San Diego Superior Court, and these characterization questions are usually the first contested issue. For the full framework, see our overview of high-asset property division.

The Valuation Date: When Assets Are Measured

Timing can matter as much as method. Family Code § 2552 provides:

"(a) For the purpose of division of the community estate upon dissolution of marriage or legal separation of the parties, except as provided in subdivision (b), the court shall value the assets and liabilities as near as practicable to the time of trial. (b) Upon 30 days' notice by the moving party to the other party, the court for good cause shown may value all or any portion of the assets and liabilities at a date after separation and before trial to accomplish an equal division of the community estate of the parties in an equitable manner."

The default is trial. A different date requires notice, a motion, and good cause. Courts do not grant these automatically.

A second date works alongside the first. Under Family Code § 771, "the earnings and accumulations of a spouse... after the date of separation of the spouses, are the separate property of the spouse." So the date of separation fixes what is community. The valuation date fixes how much it is worth.

Family Code § 70 defines the date of separation as "the date that a complete and final break in the marital relationship has occurred, as evidenced by both of the following: (1) The spouse has expressed to the other spouse the intent to end the marriage. (2) The conduct of the spouse is consistent with the intent to end the marriage." The court considers "all relevant evidence." Moving out is not required.

The gap between these dates is where volatile assets cause trouble. A concentrated stock position can double or halve in two years. A company's revenue can swing. Post-separation effort by an owner may belong to that owner, while market growth on a community asset belongs to both spouses. When a bonus, a vesting tranche, or a large contract lands near the separation date, a few weeks can change which spouse owns it. That is why date-of-separation disputes are often valuation disputes in disguise.

How Different Asset Classes Are Valued

Each asset class has its own method. The common standard is fair market value: what a willing buyer would pay a willing seller, with neither under pressure and both reasonably informed.

Real property. A licensed appraiser compares recent sales of similar properties. For income properties, the appraiser also considers rental income. San Diego County values vary sharply between coastal, inland, and North County submarkets. A comparable from a different neighborhood can distort the number. Our guide to real estate in divorce covers buyouts and equity division.

Business interests. Valuators use three main approaches:

  • Income approach. Values the business based on the earnings it is expected to produce. This is done either by capitalizing one normalized year of earnings or by discounting projected future cash flows to today's dollars.
  • Market approach. Compares the business to sales of similar companies.
  • Asset approach. Adds up what the business owns and subtracts what it owes.

A professional practice, a holding company, and a manufacturing firm will usually call for different approaches. Our article on business valuation in divorce covers apportionment of a pre-marital business in more depth.

Retirement accounts and pensions. Defined contribution plans such as 401(k)s are valued by account balance, with the community share limited to the portion accrued during marriage. Defined benefit pensions promise a future monthly payment. They require an actuarial present-value calculation, or the court may divide the payments as they arrive. Employer plans are usually divided through a Qualified Domestic Relations Order (QDRO), a court order that lets the plan pay the other spouse directly without early-withdrawal penalties. A QDRO is not a simple form. It must be drafted to the plan's rules, entered by the court, and approved by the plan administrator. IRAs are typically divided by a transfer made under the divorce judgment.

Stock options and RSUs. Vested awards can be valued now. Unvested awards are harder. When an award was granted during marriage but vests after separation, California courts use time-rule formulas, often called the Nelson and Hug formulas, to allocate the community portion. Each measures the share of the service period that fell during the marriage. Which formula fits depends on whether the grant rewarded past work, future work, or both.

Investment and brokerage accounts. These are generally valued at market value on the valuation date. Cost basis also matters. Cost basis is what was originally paid, and it determines the tax owed on sale. Two positions with the same market value can carry very different tax bills.

Household and personal property. This is valued at resale value, not replacement cost. Art, jewelry, and collectibles usually receive a formal appraisal. If there are horses and horse property, those need a specialized appraiser too.

Cryptocurrency and digital assets. These are valued at market price on the valuation date. The harder question is often characterization: if coins were bought with commingled funds, tracing each purchase back to its source can be difficult.

Who Performs the Valuation — and What Happens When Spouses Disagree

Each spouse may retain their own expert. The court is not bound by either one. A judge can accept one opinion, reject both, or land somewhere between them based on the evidence.

When party experts are far apart, Evidence Code § 730 allows the court, "on its own motion or on motion of any party," to "appoint one or more experts to investigate, to render a report as may be ordered by the court, and to testify." The court may also set that expert's compensation. A neutral expert often narrows a dispute that two party experts had widened.

The usual roles:

  • Forensic CPA. Traces separate property contributions, reconstructs business financials, and identifies income or assets that do not appear on the surface. For this site's purposes, that work is about characterization: figuring out what a dollar is and where it came from.
  • Business valuation analyst. For closely held companies, this is typically someone holding a CVA, ABV, or ASA credential.
  • Real estate appraiser. A state-certified appraiser, often one with an MAI designation for commercial or income property.

Not every value needs an expert. A stipulated value is a number both spouses agree on and submit to the court. It avoids expert testimony on that item entirely. Many cases stipulate to most asset values and litigate only one or two.

For the one or two they cannot resolve, disputes in the San Diego Superior Court Family Law Division generally go to an evidentiary hearing or trial. There the experts testify and are cross-examined on their assumptions. The California Courts self-help center outlines how property and debt are handled procedurally, and our guide to the divorce process covers disclosures and timing.

Separate Property Tracing and Reimbursement Claims

Under the Moore/Marsden rule, from In re Marriage of Moore (1980) and In re Marriage of Marsden (1982), community funds that pay down the mortgage on one spouse's separate-property home give the community a partial ownership share. The arithmetic works in steps:

  1. Take the principal paid down with community funds during marriage.
  2. Divide it by the original purchase price. That percentage is the community's share.
  3. Apply that percentage to the appreciation during the marriage.
  4. Add back the principal the community paid.

The separate-property owner keeps the rest, including pre-marital appreciation. The formula looks simple. The hard part is assembling accurate numbers for each input, especially after refinances.

Two other terms come up often:

  • Epstein credits. Reimbursement to a spouse who used separate funds after separation to pay a community debt, such as the mortgage on the family home.
  • Watts charges. An offset owed by a spouse who had exclusive use of a community asset after separation. Living in the community home is the common example.

Tracing puts the burden on the spouse claiming separate property. The evidence is bank statements, brokerage records, tax returns, and closing documents. Memory is rarely enough. When separate and community money sat in the same account for years, tracing can become difficult. Sometimes it becomes impossible, and the presumption of § 760 then controls.

One point often surprises business owners. Salary paid to an owner-spouse during marriage is community property, even if it was reinvested in a business that is separate property. For a reader who has spent years assuming "it's my company, so it's my money," this is often the section that changes the picture.

Assets That Are Not Subject to Division

Genuinely protected assets are narrower than many people expect. They include:

  • Confirmed separate property under § 770: pre-marital assets kept separate, gifts, and inheritances, along with their rents and profits.
  • Post-separation earnings and accumulations under § 771.
  • Property governed by a valid premarital or postnuptial agreement. California has specific statutory requirements for premarital agreements. During marriage, spouses owe each other fiduciary duties under Family Code § 721, including "a duty of the highest good faith and fair dealing." A postnuptial agreement that gives one spouse an unfair advantage can face challenge on that basis.
  • Property in an irrevocable trust where the spouse is not the settlor and has no control. The settlor is the person who created and funded the trust.

Two misconceptions come up repeatedly. Titling an asset in one spouse's name alone does not make it separate property if it was acquired during marriage with community funds. And a retirement account in one spouse's name is still divisible to the extent it accrued during marriage.

Common Valuation Mistakes and Why They Matter in San Diego County Cases

Replacement-cost thinking is the first mistake. A sofa bought for a large sum may resell for a small fraction of that. Courts use resale value.

Taxes are the second. A pre-tax 401(k) and an after-tax brokerage account with the same balance are not equal. One carries income tax on withdrawal. The other may carry only capital gains tax, or none if the basis is high.

A business valuation accepted without scrutiny is the third. The discount rate, which is the return a buyer would demand for the risk, can move a value dramatically. So can normalization adjustments, which correct for owner perks, family salaries, or one-time events.

Goodwill is the fourth and most distinctively Californian. Goodwill is the value of a business's expected continued patronage beyond its tangible assets. California generally treats goodwill built during marriage as community property. It does not treat the owner's personal skill or future earning capacity as a divisible asset. In re Marriage of Iredale & Cates (2004) is the case commonly cited on where that line falls. The line between goodwill attached to the business and value attached to the individual is heavily contested in professional practices.

Missing equity is the fifth. Unvested RSUs or options that will vest partly because of pre-separation work are easy to overlook in a disclosure.

Stale valuations are the sixth. Because § 2552 points to trial, an appraisal from 18 months earlier can be challenged. Family Law Division judges in San Diego County expect current numbers and are familiar with local real estate and business conditions. For how these issues fit together, see our overview of high-asset divorce.

If You'd Like to Talk Through Your Asset Picture

Valuation disputes rarely turn on the formulas themselves. They turn on the inputs: the date of separation, the discount rate, whether a payroll deposit landed in the wrong account in 2014. A consultation typically covers which assets are likely community, separate, or mixed. It also looks at where the valuation date could matter most and what records would support a tracing claim. A reader should leave with a clearer sense of which one or two issues are likely to drive the outcome. For readers still deciding whether they are ready to separate at all, a different first conversation may be more useful.

To talk through how these rules apply to your business, equity, or real estate, call San Diego Family Law Advocates at (858) 330-6989 for a confidential consultation.