TL;DR — Key Takeaways
- Stock options and RSUs earned through work during the marriage are community property in California, even if they vest after separation.
- Equity granted before marriage, or entirely after separation, is generally separate. The difficult cases are grants that straddle the marriage or the date of separation.
- California courts divide straddling grants using a time rule. The two principal formulas come from In re Marriage of Hug and In re Marriage of Nelson, and which one applies depends on what the grant was meant to reward.
- No published California decision has created a separate rule for RSUs. Courts apply the same framework.
- Employer equity frequently cannot be transferred to the other spouse, so courts often divide it by having the employee hold it in trust and pay the other spouse’s share as it vests.
- The tax treatment depends on how the equity is divided and on its type. That part is for a tax professional.
Stock options and RSUs earned through work during the marriage are community property in California, even where they vest after the date of separation. Equity granted before the marriage, or entirely after separation, is generally the employee’s separate property. For grants that span either line, California courts apportion them between community and separate property using a time rule, and the choice between the two principal formulas turns on whether the grant rewarded past service or was meant to secure future service.
Community or separate
The starting points come from the Family Code.
Community property. Property acquired during the marriage by a married person domiciled in California is presumed to be community property.
Separate property. Property owned before the marriage, or acquired by gift or inheritance, is separate. So are the earnings and accumulations of a spouse after the date of separation.
Equal division. In a dissolution, the court divides the community estate equally unless the spouses agree otherwise.
Employee equity sits awkwardly across these rules because it is granted at one time, earned over a period, and vests at another. A grant made during the marriage but vesting two years after separation was partly earned during the marriage and partly earned afterward. The time rules exist to divide it.
The date of separation matters enormously. Everything earned after it is separate. In a dissolution involving substantial equity, the date of separation can be one of the most consequential and contested facts in the case.
The Hug and Nelson time rules
Both formulas produce a fraction of each grant that is community property. They differ in when the clock starts.
The Hug rule. In In re Marriage of Hug (1984), the Court of Appeal approved a formula that measures from the start of employment. The community share is the time from the date of hire to the date of separation, divided by the time from the date of hire to the date the equity vests or becomes exercisable. Because it begins at hire, it tends to produce a larger community share, and it fits grants that reward service already performed, such as an offer-letter grant made to induce a candidate to join.
The Nelson rule. In In re Marriage of Nelson (1986), the court applied a formula that measures from the date of grant. The community share is the time from the date of grant to the date of separation, divided by the time from the date of grant to vesting. It excludes service before the grant, and it fits grants meant to retain an employee and reward future work, such as annual refresher grants.
The court chooses. Neither formula is mandatory. Courts look at the purpose of each grant, often from the grant documents and the employer’s practices, and have broad discretion to apply the formula that best reflects what the equity compensated. Hug itself emphasized that no single rule fits every case. A dissolution involving several grants may apply different formulas to different grants.
Grants that predate the marriage. Where a grant was made before the marriage and vested during it, the time rule is adjusted to credit pre-marital service as separate property.
RSUs specifically
Both leading cases concerned stock options. Restricted stock units became a common form of compensation later, and as of September 2026 no published California decision has created a distinct rule for them.
Courts apply the same framework by analogy. An RSU award that vests over four years is apportioned by time in the same way, and the Hug versus Nelson choice turns on the same question of what the award was meant to compensate. Performance-based units, whose vesting depends on metrics as well as time, add a contingency that courts typically address by dividing them if, as, and when they vest.
If you are negotiating a settlement involving several equity grants, the formula applied to each can move the result substantially, and it is worth analyzing grant by grant. Call Bay Legal at (650) 668-8000 in Northern California or (213) 668-8000 in Southern California.
Why you often cannot just hand over the shares
Dividing equity on paper is the easy part. Carrying out the division is harder.
Transfer restrictions. Most equity plans prohibit transferring unvested awards and many restrict transferring options at all. The employer is not bound by the divorce, and it will generally deliver shares only to the employee.
The mechanisms courts use instead:
- Constructive trust. The employee holds the non-employee spouse’s share in trust and, as each tranche vests or is exercised, delivers that spouse’s portion, often net of the taxes the employee incurs.
- Deferred distribution. The court orders division “if, as, and when” the equity vests, retaining jurisdiction to resolve disputes.
- Offset. The non-employee spouse receives other community assets of equivalent value now, and the employee keeps the equity. That requires a present valuation, which can be difficult for unvested or illiquid equity.
Each approach has costs. A constructive trust ties the former spouses together financially for years. An offset requires agreeing on the value of something whose value is uncertain.
Tax consequences
Federal tax law generally provides that transfers of property between spouses, or between former spouses incident to a divorce, do not produce a taxable gain or loss, and the recipient takes over the transferor’s tax basis. That rule is a foundation, not the whole answer.
For employee equity, when income is recognized, by whom, and how withholding is handled depend on the type of award, whether it is actually transferred or held in trust, and the plan’s terms. The difference between incentive stock options and nonqualified options, and between options and RSUs, matters. So does California tax treatment, which does not always follow federal rules.
These are questions for a CPA or tax attorney working alongside family-law counsel, and the settlement should be drafted with their analysis in hand. The legal structure of the division is one part of the work; the tax modeling is another, and the two should meet before anything is signed.
Private company equity
Equity in a private company adds problems a public company’s stock does not have.
Valuation. There is no market price. The company’s periodic valuation for tax purposes sets option exercise prices, but it is prepared for a different purpose and is not necessarily the fair value of the equity for a marital division.
Illiquidity. Private shares may not be sellable for years, if ever, and a liquidity event may never occur.
Transfer restrictions. Rights of first refusal, lockups, and consent requirements commonly restrict any transfer.
Risk. The equity may become very valuable or worthless.
Those features push courts and parties toward deferred distribution rather than a present offset, because a present valuation of speculative private equity invites one spouse to overpay for risk the other is escaping.
When dividing every grant is not worth it
Honesty requires noting that precision has a cost.
Litigating the characterization of every grant, the purpose of every refresher, and the formula for each tranche can consume more in fees than the difference between the parties’ positions. A settlement that applies a reasonable formula across all grants, or trades the equity for other assets at an agreed value, frequently leaves both spouses better off than a contested allocation, and ends the financial entanglement sooner.
The analysis worth paying for is the one that identifies which grants are large enough, and uncertain enough, for the formula choice to matter.
Bay Legal advises on equity compensation in California dissolutions, alongside tax counsel. Reach us at (650) 668-8000, (213) 668-8000, or through baylegal.com/contact-us.
Frequently Asked Questions
Are RSUs and stock options community property in California?
To the extent they were earned through work during the marriage, yes, even if they vest after the date of separation. Equity granted before the marriage or entirely after separation is generally separate property, and grants that span either date are apportioned using a time rule.
How do courts allocate unvested equity between spouses?
By applying a time rule to each grant to determine the community fraction. The court chooses the formula based on what the grant was meant to compensate, and has broad discretion to apply different formulas to different grants in the same case.
What are the Hug and Nelson time rules?
Under In re Marriage of Hug (1984), the community share runs from the date of hire to separation, divided by hire to vesting; it fits grants rewarding past service. Under In re Marriage of Nelson (1986), it runs from the date of grant to separation, divided by grant to vesting; it fits grants meant to secure future service.
What tax consequences follow a division of equity?
Transfers between spouses or incident to a divorce generally do not produce taxable gain or loss, but when income on employee equity is recognized, by whom, and how it is withheld depend on the award type, whether it is transferred or held in trust, and the plan’s terms. A CPA or tax attorney should model the division before a settlement is signed.
What happens when the granting company is private?
Valuation is harder because there is no market price, the company’s tax valuation is not necessarily fair value for a divorce, the shares may be illiquid for years, and transfer restrictions are common. Those features favor dividing the equity if, as, and when it vests rather than valuing it now.
