California Community Property vs Separate Property: The Basics

Editorial note: This page is educational and is not legal, tax, or financial advice. Community property and separate property classification in California drives divorce, estate, and tax outcomes. Consult a California licensed family or estate planning attorney and your tax advisor for your specific facts before you sign a deed, a transmutation agreement, or a beneficiary form.

Last updated: August 13, 2026 · By Gold California Editorial

This page walks through the plain-English framework California uses to sort a married person's assets into two buckets: community property and separate property. The rules matter at three moments: during the marriage, at divorce, and at the first spouse's death.

Every rule below cites the California statute, the Internal Revenue Code, or an IRS publication that controls the point. Nothing here is legal or tax advice, and a California licensed attorney should apply the framework to your specific facts.

What community property is under Family Code Section 760

Family Code Section 760 is the default rule. It says that, except as otherwise provided by statute, all property, real or personal, wherever situated, acquired by a married person during the marriage while domiciled in California is community property (source: California Family Code Section 760).

Read the section slowly. Three timing elements matter: acquisition during the marriage, domicile in California at the time of acquisition, and no controlling statute pointing the other way. If all three are met, the default is community property.

The typical example is a paycheck earned by one spouse during the marriage. Those earnings are community property. A house purchased with community earnings during the marriage is community property. A brokerage account funded with community earnings is community property.

Community property is owned equally by both spouses. Each spouse holds an undivided one-half interest, and each spouse has an equal say in management under Family Code Section 1100 for personal property and Section 1102 for real property.

What separate property is under Family Code Section 770

Family Code Section 770 defines separate property in three categories. It covers all property owned by the person before marriage, all property acquired after marriage by gift, bequest, devise, or descent, and the rents, issues, and profits of that property (source: California Family Code Section 770).

Property owned before the wedding stays separate. A brokerage account funded before marriage remains the acquiring spouse's separate property. A house purchased before marriage stays separate at the moment of the wedding.

Property received during the marriage by gift is separate. Property received during the marriage by inheritance is separate. A named beneficiary who inherits an IRA during the marriage receives that IRA as separate property.

Rents, issues, and profits of separate property are also separate. Dividends on a pre-marital stock account, rental income on a pre-marital rental house, and interest on a pre-marital bond stay separate as long as they are not commingled beyond a tracing point.

Section 770(b) also confirms that a married person may convey separate property without the spouse's consent. That right of solo conveyance is a bright-line test that community property does not share.

How the date of separation affects the classification

Family Code Section 771 treats earnings and accumulations of a spouse after the date of separation as the separate property of that spouse (source: California Family Code Section 771). This is a common point of confusion in divorces.

The date of separation is not the day the papers are filed. Family Code Section 70 defines it as the date one spouse has expressed an intent to end the marriage and has acted consistently with that intent. The two-part test controls when earnings cross from community to separate.

A paycheck earned on the day after the date of separation is separate property. A paycheck earned the day before is community property. That single day can shift substantial value in a long marriage with a bonus or a stock vest.

Quasi-community property for movers into California

Family Code Section 125 defines quasi-community property. It covers property acquired by either spouse while domiciled outside California that would have been community property if the acquiring spouse had been domiciled here at the time of acquisition (source: California Family Code Section 125).

A Texas engineer who accumulates a 401(k) balance in Houston and then moves to San Jose brings quasi-community property along. The balance is not community property in the strict sense, because Texas is not a community property state for that account.

Quasi-community property is treated as community property for California divorce and death purposes. That treatment can surprise a spouse who assumed a pre-move account stayed separate simply because it originated in a non-community state.

Commingling and the tracing problem

Commingling happens when separate funds and community funds are mixed in the same account or the same asset. Commingling does not automatically transmute separate property into community property. It creates a tracing problem instead.

The burden falls on the spouse claiming a separate share. That spouse must trace, dollar by dollar or lot by lot, which portion of the mixed asset came from separate funds. California courts use methods described in the case law, including direct tracing and the family expense presumption.

Two common tracing methods appear in California family law practice: direct tracing to a specific separate deposit and recapitulation of community and separate contributions over the life of the account. Both require account records. Without records, the community-property presumption of Section 760 tends to control.

The Moore/Marsden line of California cases applies a specific formula when community funds pay down a mortgage on a spouse's separate-property house. The community earns a pro rata interest in the appreciation. A family lawyer runs that formula on the specific facts; it is not a rule of thumb.

Transmutation agreements under Family Code Sections 850 through 853

Spouses can change the character of property by agreement. Family Code Section 850 permits three moves: community to separate, separate to community, and separate of one spouse to separate of the other (source: California Family Code Section 850).

Section 852 sets the formalities. A transmutation is valid only if made in writing by an express declaration accepted by the spouse whose interest is adversely affected (source: California Family Code Section 852). Oral agreements do not qualify, and neither does a course of conduct.

A transmutation of real property is not effective as to third parties without notice unless the instrument is recorded. Section 852(b) makes recording a practical requirement for a spousal deed on a California residence.

Section 852(c) carves out a small-value exception for gifts of clothing, jewelry, or other tangible personal articles used solely or principally by the receiving spouse. That exception does not reach investment assets, real property, or bullion.

Section 853 restricts how a spouse can prove a transmutation. A statement in a will of the character of property is not admissible before the death of the will's maker as evidence of a transmutation (source: California Family Code Section 853). Section 853 also confirms that a written joinder in a nonprobate transfer that meets Section 852 is itself a transmutation.

What happens at the first spouse's death

California Probate Code Section 100 sets the default at death for community property. One-half of the community property belongs to the surviving spouse and the other one-half belongs to the decedent (source: California Probate Code Section 100).

The surviving spouse already owns the survivor's half by operation of the community-property system. The decedent's half passes under the decedent's will, revocable trust, or intestacy rules, depending on the estate plan in place.

Separate property held only by the decedent passes entirely under the decedent's plan or by intestacy. There is no automatic half-share to the surviving spouse for a pure separate-property asset that has not been made joint or held through a survivorship vehicle.

Nonprobate transfers overlay the default. An IRA passes by beneficiary designation as a nonprobate transfer under Probate Code Section 5000. A payable-on-death account, a Totten trust, and a revocable transfer on death deed each override the default with their own rules.

Community property and the double basis step-up

Federal income tax law treats community property differently from other jointly held property at a first spouse's death. IRC Section 1014(a) resets the decedent's share of any inherited property to fair market value on the date of death.

IRC Section 1014(b)(6) then adds a second layer for community property only. The surviving spouse's one-half share of community property also receives a stepped-up basis, provided at least one-half of the community interest was includible in determining the decedent's gross estate (source: 26 U.S. Code Section 1014, Cornell LII).

IRS Publication 555 confirms the same rule in plain language. When one spouse dies, the total fair market value of the community property, including the part that belongs to the surviving spouse, generally becomes the basis of the entire property (source: IRS Publication 555, Community Property, revised December 2024).

Separate property does not receive that second layer. A pre-marital brokerage account held only by the decedent gets one basis step-up under Section 1014(a). The surviving spouse's separate property, still held by that spouse, gets no reset because it did not pass at death.

The dedicated goldcalifornia page on the community-property step-up on gold bullion walks through how these federal rules apply to physically held bullion acquired during a California marriage. This page keeps the focus on the classification framework.

Common assets: community or separate at a glance

Sources: California Family Code Sections 70, 125, 297.5, 760, 770, 771, 780 through 783, 802, 850 through 853, 2581; California Civil Code Section 682.1; California Probate Code Section 100. Checked August 2026.

How to think through the characterization of an asset

The steps below outline how a California married couple, or an executor working an estate, walks through the community-versus-separate question for one asset at a time. They describe the general mechanics; they are not legal advice, and a California family or estate attorney should confirm the answer for your facts.

1. Fix the date of acquisition. Pull the escrow closing statement, brokerage transfer confirm, IRA rollover statement, or bill of sale. The date of acquisition is the first fact needed under Family Code Section 760.
2. Fix the marital status on that date. Compare the acquisition date to the wedding date and, if applicable, the date of separation under Family Code Section 70. Property acquired before the wedding or after separation starts in the separate bucket.
3. Fix the domicile on that date. If both spouses were domiciled in California, apply Family Code Sections 760 and 770 directly. If one or both were domiciled elsewhere, add Family Code Section 125 to consider quasi-community treatment.
4. Trace the source of funds. If community earnings paid for the asset, the community-property presumption applies. If separate funds paid, keep the paper trail (deposit slips, account statements, wire receipts).
5. Check for a written transmutation. Search for a signed writing between the spouses that changes the character under Family Code Section 852. An interspousal transfer deed, a marital agreement, or a signed election on a brokerage form may qualify.
6. Check the title. Look at the recorded deed for real property, the registration for vehicles, and the account agreement for financial accounts. Joint tenancy triggers Family Code Section 2581 at dissolution; community property with right of survivorship triggers Civil Code Section 682.1.
7. Note any commingling. Flag accounts that received both community deposits and separate deposits. Set aside the records the family attorney will need for tracing.
8. Consult counsel before signing anything. A signed writing can transmute an asset. A signed deed can vest title. Read the document carefully and ask a California attorney to review it before you sign.

Consult a California family or estate planning attorney before drafting or signing any document that changes property character. Consult your tax advisor for how the classification interacts with your basis, gain, and estate exposure.

When this framework does not resolve the question

The community-versus-separate framework covers most California married-couple assets. It does not resolve every fact pattern, and a few situations call for professional review before you rely on the labels.

• Mixed-source accounts with no records. A brokerage account funded by both spouses over 20 years, with lost statements, may default to the community presumption because no tracing is possible.
• ERISA-governed retirement plans. Federal ERISA rules preempt some state community-property rules for private pension plans. A qualified domestic relations order (QDRO) is the mechanism used to divide those benefits.
• Federal benefits with their own rules. Social Security, federal military retirement, and some Railroad Retirement benefits follow federal statutes that override California's community-property presumption.
• Cross-border families. Spouses domiciled in a non-community state, or one spouse abroad, complicate the domicile test in Family Code Sections 760 and 125. A family lawyer reviews the timeline of residency.
• Business interests. A business started before the marriage and grown with community labor may have a Van Camp or Pereira apportionment issue. That analysis is fact-specific and belongs with counsel.
• Gifts between spouses without the required writing. Family Code Section 852 requires a signed writing for a transmutation. A verbal promise, even if repeated over years, does not change the property's character.
• Same-sex couples married before June 26, 2013. The classification analysis interacts with the date the marriage was legally recognized in California and by federal law. Consult counsel for the specific timeline.

None of the above says the framework does not apply. It says the framework does not stop with the two-bucket label; the real answer requires the record.

California community versus separate property, answered

What is the basic difference between community and separate property in California?

Community property is what a married person acquires during the marriage while domiciled in California, under Family Code Section 760. Separate property is what a person owned before the marriage, or acquired during the marriage by gift, bequest, devise, or descent, under Family Code Section 770. The two labels drive division at divorce and the transfer plan at death.

Is inheritance separate property in California?

Yes. Family Code Section 770(a)(2) treats property acquired by a married person after marriage by gift, bequest, devise, or descent as that spouse's separate property. Rents and profits of the inherited asset are also separate under Section 770(a)(3), as long as they are not commingled beyond a tracing point. Consult a California estate attorney about titling and beneficiary forms.

Does putting a spouse on the deed change separate property into community property?

Not automatically. A deed adding a spouse can be a transmutation only if it meets Family Code Section 852. The instrument must be in writing, must expressly declare the change of character, and must be accepted by the spouse whose interest is adversely affected. Have a California attorney draft or review the deed before recording.

What is quasi-community property?

Under Family Code Section 125, quasi-community property is property either spouse acquired while domiciled outside California that would have been community property if the acquiring spouse had been California-domiciled at the time. It is treated as community property for California divorce and death purposes. A 401(k) accumulated in Texas and later moved to San Jose is a common example.

What happens to community property when the first spouse dies?

Under California Probate Code Section 100, one-half of the community property belongs to the surviving spouse and the other one-half belongs to the decedent. The decedent's half passes under the will, revocable trust, or intestacy rules. For federal income tax, IRC Section 1014(b)(6) resets both halves to date-of-death fair market value. Consult a California estate attorney and your tax advisor.

Can spouses change property from community to separate or the other way around?

Yes. Family Code Sections 850 through 853 allow a transmutation by a signed writing that expressly declares the change and is accepted by the adversely affected spouse. Section 852(b) requires recording for real property to be effective as to third parties. Oral agreements do not qualify, and a family or estate attorney should draft the document.

Do registered domestic partners get the same community-property rules?

Yes. Family Code Section 297.5 gives registered domestic partners the same rights, protections, benefits, responsibilities, and duties under California law as spouses. That includes the community-property system in Family Code Sections 760 and 770. Federal tax treatment of registered domestic partners follows a separate federal rule, described in IRS Publication 555.

What if separate and community funds are mixed in the same account?

Commingling does not automatically convert separate property into community property. The spouse claiming a separate share must trace it with account records. Without records, the Family Code Section 760 presumption tends to control. Keep deposit slips, brokerage statements, and wire receipts, and ask a California family lawyer to run the tracing before divorce or death.