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Stock Options and RSUs in a California Divorce: What the Law Actually Does
California treats the marital share of stock options and RSUs as community property. How time-rule formulas, vesting, disclosure, and trial-date valuation work.
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In a California divorce, stock options and RSUs earned during the marriage are community property. Equity earned before marriage or after separation is separate property. When a grant overlaps those periods, the court uses a time-based formula to work out the marital share. That share is then divided equally, and the agreement or judgment spells out how the division works.
Most people facing this question are looking at an equity statement with several grants on it. Some shares have vested, some have not, and a few options may be worth nothing at today's price. Some readers are the employee whose name is on the account. Others are the spouse who knows the grants exist but has never seen the paperwork. Either way, the same worry tends to sit underneath: whether a grant that will not pay out for years still counts, and who decides how much of it belongs to the marriage.
This article walks through the rules California applies, the formulas courts use, and how these cases move through the court that hears Carlsbad family law matters.
What California Community Property Law Does with Equity Compensation
Family Code section 760 sets the starting point. Except where another statute provides otherwise, "all property, real or personal, wherever situated, acquired by a married person during the marriage while domiciled in this state is community property." Community property belongs to both spouses equally. It does not matter whose name appears on the brokerage account or the grant letter.
Family Code section 771 sets the other boundary. The "earnings and accumulations of a spouse ... after the date of separation of the spouses, are the separate property of the spouse." Separate property belongs to one spouse alone. Taken together, the two sections mark out a window. What is earned between the wedding and the date of separation is generally community property. What is earned outside that window is generally separate.
A paycheck fits neatly into that window, because the pay arrives for work done in a given period. Equity compensation does not. A few terms explain why:
- A stock option is the right to buy company stock at a fixed price, called the strike price or exercise price, on or after a future date.
- A restricted stock unit (RSU) is a promise to deliver shares of company stock once certain conditions are met.
- Vesting is the process by which an employee earns the right to exercise an option or receive RSU shares over time. It is usually tied to continued employment and sometimes to performance targets.
Because of vesting, one grant can be awarded during the marriage, vest partly before the separation, and vest partly after it. That grant is neither purely community nor purely separate. A court does not simply cut it in half. It first apportions the grant, which means deciding what fraction of it was earned during the marriage, and then divides that community fraction. The same principles that govern property division in Carlsbad apply here. Equity simply needs an extra step before the split.
The Time-Rule Formulas California Courts Use: Hug, Nelson, and Harrison
California courts apportion equity grants with time-rule formulas. Each formula compares the time a spouse worked toward a grant during the marriage with the total time needed to earn it. The result is a fraction. It is not a dollar figure. The fraction is applied to the options or shares that actually vest.
The Hug approach. In In re Marriage of Hug (1984) 154 Cal.App.3d 780, the options were found to reward the employee's work from the start of employment. The court approved a formula that started the clock when the employment began, not when the options were granted. The marital period of that employment was then measured against the full period through the date each option could be exercised. This approach tends to come up when the evidence shows a grant was meant to compensate past services.
The Nelson approach. In In re Marriage of Nelson (1986) 177 Cal.App.3d 150, the options were found to be aimed at future work, as an incentive to stay with the company. The clock started at the grant date. The time from grant to separation was measured against the time from grant to the date the options became exercisable. This approach usually fits grants that were designed to keep an employee in place going forward.
The Harrison decision. In re Marriage of Harrison (1986) 179 Cal.App.3d 1216 is often cited for the point that no single formula is required. The trial court chooses the time rule that reflects what the grant was for. Where a grant served more than one purpose, rewarding past work and encouraging future work, the court is not locked into either the Hug or Nelson approach.
What decides the formula is the purpose of the grant. Courts look at the evidence: the grant agreement, the offer letter, the plan documents, the vesting schedule, and sometimes testimony from the employer about why the equity was awarded. A sign-on grant, an annual refresh grant, and a retention grant can each point a different way.
For someone trying to understand their own statement, the key point is this. The grant date, the vesting dates, the date of marriage, and the date of separation are the inputs. Which formula applies controls how those inputs are counted. The arithmetic is usually the easy part. The harder part tends to be proving what each grant was for.
Unvested Options and RSUs: What Happens to Grants That Haven't Vested Yet
A grant that has not yet vested is not separate property just because it has not vested. If the grant was made during the marriage, the community has an interest in it to the extent the applicable time rule says so. That holds even if the shares will not arrive until well after the divorce is final.
This is often the point where an employee spouse feels the process is unfair, because continued work after separation will be needed to earn those shares. The time-rule formulas account for that. The post-separation months fall in the denominator of the fraction but not the numerator, so the community's share of each later vesting tranche shrinks. The formula is applied to each tranche as it vests.
Judgments and marital settlement agreements generally handle unvested equity in one of two ways.
Deferred distribution. The employee spouse keeps the grant in their name. As each tranche vests, the other spouse receives their share of the community fraction, either as shares or as the after-tax proceeds. This avoids guessing at future value. It does keep the former spouses financially connected for the life of the vesting schedule. It also leaves both of them exposed if the employee leaves the company and unvested shares are forfeited.
Present-value buyout. The employee spouse keeps all future shares and pays the other spouse now, in cash or through other assets. This makes a clean break. It requires valuing something uncertain, though: shares that may never vest, at a price no one can predict, with taxes that depend on future events. The employee spouse takes on the risk that the shares will be worth less. The other spouse gives up any gain if they are worth more.
Each approach trades certainty against flexibility, and tax and liquidity concerns sit on both sides. Family Code section 2550 requires the court to divide the community estate equally, except where the parties agree otherwise in writing or by oral stipulation in open court, or where the statutes provide otherwise. Whichever method is used, the community fraction is what gets split evenly.
What matters most in practice is that the agreement or judgment actually addresses the unvested grants. It should cover the formula, the tranches, who holds the shares, how taxes are handled, and what happens if employment ends. When a judgment is silent on these points, disputes after the divorce are common.
Vested but Unexercised Options: A Separate Question
An option that has vested but has not been exercised is still an asset. The employee has earned the right to buy shares at the strike price but has not bought them yet. If that option vested during the marriage, it is subject to division even though no shares have changed hands.
The community share of a vested option is the portion tied to the marriage under the applicable time rule. Options that vested entirely before marriage are separate property. So are options that were granted and earned entirely after the date of separation. Options whose earning period crosses either line are apportioned with the same formulas described above.
The strike price brings in a wrinkle that RSUs do not have. An option whose strike price is above the current market price is called "underwater." Exercising it today would mean paying more than the shares are worth, so it may have no present value. It may still have some years left before it expires, and the stock may recover. A judgment that gives an underwater option a value of zero, or leaves it out entirely, can create problems later if the price rises. Many agreements deal with this by dividing underwater options in kind, or by using deferred distribution, instead of assigning them a present number.
Timing also matters for value. Family Code section 2552(a) provides that the court "shall value the assets and liabilities as near as practicable to the time of trial." Under section 2552(b), on 30 days' notice and for good cause, the court may instead value all or part of the estate at a date after separation and before trial. Stock prices can move sharply in a matter of months, so the valuation date can make a real difference to what the community's share is worth. The date of separation decides how much of a grant is community. It does not fix the date on which that share is valued.
Pre-Marriage Grants and Separate Property Tracing
Family Code section 770 defines separate property to include "all property owned by the person before marriage," property received "by gift, bequest, devise, or descent," and the "rents, issues, and profits" of that property. A grant made before the wedding that fully vested before the wedding falls within that definition and is separate property.
A grant made before marriage that keeps vesting after the wedding is different. The vesting that happens during the marriage reflects work during the marriage. That portion is generally community property and is apportioned with a time rule.
The spouse who says an asset is separate property generally carries the burden of tracing it. Tracing means showing with records where the asset came from and when it was earned. For equity, the records usually include the original grant agreement, the vesting schedule, any amendments or repricings, employment dates, and account history showing what was exercised or sold and when. When those records are incomplete or unclear, the section 760 presumption tends to decide the question, and the asset is treated as community property. Equity that has been exercised, sold, and moved into a joint account years ago can be especially hard to trace.
The date of separation needs the same care. Grants and earnings after that date are separate under section 771, so the date itself is sometimes the most contested fact in a case. Family Code section 70(a) defines it as "the date that a complete and final break in the marital relationship has occurred," 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."
Under section 70(b), the court "shall take into consideration all relevant evidence." For someone holding a refresh grant that landed near the time the marriage was ending, moving that date by a few weeks can change whether the grant is community property at all. It can also change the fraction for every grant that was in the middle of vesting.
Disclosure Requirements: What Each Spouse Must Produce
Family Code section 2104(f) requires each spouse to serve a preliminary declaration of disclosure. The petitioner serves it with the petition or within 60 days of filing the petition. The respondent serves it with the response or within 60 days of filing the response. The parties can extend these deadlines by written agreement, or the court can extend them by order.
The preliminary declaration is signed under penalty of perjury. Under section 2104(c), it must identify "all assets in which the declarant has or may have an interest and all liabilities," whether those assets are community, quasi-community, or separate. Equity compensation falls squarely within that requirement, including vested options, unvested RSUs, unexercised grants, and grants from prior employers. In practice, the supporting material usually includes grant agreements, vesting schedules, and current statements from the employer's equity plan portal. Tax returns from the prior two years and a completed income and expense declaration are also part of the preliminary disclosure under section 2104.
Family Code section 2105 adds a final declaration of disclosure. It is due before or at the time the parties reach an agreement on property or support, or, if the case is tried, no later than 45 days before the first assigned trial date. It must include all material facts about the characterization and value of the assets. The spouses may waive it only by mutual agreement under penalty of perjury, and the waiver must state that their disclosure obligations have in fact been met.
The consequences of leaving equity out can be serious. Family Code section 2122 permits a motion to set aside all or part of a judgment for actual fraud, for perjury in the declarations of disclosure, or for failure to comply with the disclosure requirements. Each of these grounds generally carries a one-year limit that runs from when the problem was or should have been discovered. Separately, Family Code section 2556 gives the court continuing jurisdiction over community assets the judgment never addressed. A spouse can bring a post-judgment motion, and the court divides the omitted asset equally unless good cause shows the interests of justice require otherwise.
A spouse who has no access to the employer's portal is not limited to whatever the other spouse chooses to hand over. The disclosure process comes first. When it falls short, formal discovery is available.
Tax Considerations the Court Cannot Ignore
Equity compensation carries tax consequences that a cash account does not. Two numbers that look the same on a statement can be worth very different amounts after taxes. This section explains why that matters to the division. It is legal context, not tax advice.
The type of option matters. Incentive stock options (ISOs) and non-qualified stock options (NQSOs) are taxed differently when they are exercised and when the shares are later sold. RSUs are generally taxed as ordinary income when they vest. The employee spouse typically owes income tax on the value at vesting, even if part of those shares is going to the other spouse.
Divorce adds another layer. When the non-employee spouse receives equity, or the proceeds from it, under a judgment, the agreement has to spell out who bears which tax and when. That includes taxes triggered at exercise or vesting while the shares are still in the employee's name, and taxes on a later sale. Without that language, one spouse can end up paying tax on value that went to the other.
Courts and parties commonly work with a forensic accountant or tax professional to model after-tax values. This is especially common when they are comparing a deferred distribution with a buyout, or setting an equalization payment. Section 2552 governs when the estate is valued. The tax picture affects what those values are actually worth to each spouse, and a well-drafted judgment addresses both.
How Cases Like This Are Handled in North County San Diego
Family law cases from Carlsbad are generally filed and heard at the Superior Court of California, County of San Diego, North County Regional Center, 325 South Melrose Drive, Vista, CA 92081. That is where disputes over a date of separation, the purpose of a grant, or a valuation date are decided when the spouses cannot agree. California law governs the analysis, including the community property statutes and the Hug, Nelson, and Harrison line of cases. The court's self-help resources and the Judicial Council's divorce self-help pages describe the general process.
Equity compensation is a regular feature of pay across North County, including in Carlsbad, Oceanside, Vista, San Marcos, Encinitas, Solana Beach, Del Mar, and Rancho Santa Fe. It comes from technology, biotech, defense, and other employers. Statements in these cases often show several grant cycles, overlapping vesting schedules, and grants from more than one employer. Each grant may need its own analysis of purpose, formula, and timing. The issues overlap with those in a complex financial divorce, and with business owner divorce when founder or early-stage equity is involved. A contested divorce is more likely when spouses disagree about what a grant was meant to reward.
These cases usually need two kinds of work running side by side. The legal work answers which formula applies, what the date of separation was, and how the judgment should be drafted. The financial work values unvested grants, models after-tax results, and reconciles the plan records. When the employee spouse does not produce complete records, formal discovery can include subpoenas to the employer or to the equity plan administrator.
Carlsbad Family Law Advocates practises California family law only.
If You'd Like to Talk Through Your Equity Grants
Stock options and RSUs rarely come down to a single question. The purpose behind each grant, the date of separation, the valuation date, and the tax allocation all affect one another. A change in one can shift the marital share of every grant on the statement. Grant agreements, vesting schedules, and a timeline of the marriage are the documents these questions usually turn on, and they are useful to have on hand when the discussion begins.
To discuss the general framework and how California courts approach equity compensation questions, call Carlsbad Family Law Advocates at (760) 840-5102 for a confidential consultation.
Frequently asked questions
What happens to stock options during a divorce in California?
Can my spouse take my stock options in a divorce?
What assets are untouchable in a divorce in California?
What is the difference between the Hug formula and the Nelson formula?
Are unvested RSUs community property in a California divorce?
What is the date of separation and why does it matter for stock options?
Do I have to disclose my stock options and RSUs in a California divorce?
Am I entitled to half of my spouse's stock options in a divorce?
Attorney Review & Contribution: Amy J. Lass | California Bar No. 246779
Amy J. Lass contributes legal expertise and reviews selected legal content for accuracy. General information only — not legal advice.
- Published
- October 8, 2026
- Last updated
- October 21, 2026
Sources
- California Family Code § 70 — Date of separation — California Legislative Information
- California Family Code § 760 — Community property — California Legislative Information
- California Family Code § 770 — Separate property — California Legislative Information
- California Family Code § 771 — Earnings after separation — California Legislative Information
- California Family Code § 2104 — Preliminary declaration of disclosure — California Legislative Information
- California Family Code § 2105 — Final declaration of disclosure — California Legislative Information
- California Family Code § 2122 — Grounds to set aside a judgment — California Legislative Information
- California Family Code § 2550 — Equal division of the community estate — California Legislative Information
- California Family Code § 2552 — Valuation date — California Legislative Information
- California Family Code § 2556 — Omitted assets after judgment — California Legislative Information
- Superior Court of California, County of San Diego — Family and Children — Superior Court of California, County of San Diego
- California Courts Self-Help Guide — Divorce — California Courts Self-Help
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