California Community Property Explained: What Happens at Death

California is one of nine community property states. This matters because community property rules determine what a surviving spouse owns, what goes through probate, and how much tax is owed when property is inherited.

If you are married and live in California, community property law affects nearly every asset you own. This guide explains how it works and why it matters.

What Is Community Property?

Community property is a legal concept that says property acquired during marriage belongs equally to both spouses, regardless of who earned the money or whose name is on the title.

Each spouse owns an undivided 50% interest. Not separate halves, but an undivided whole owned together.

Property That Is Community Property

Earnings during marriage. Every paycheck either spouse earns during the marriage is community property from the moment it hits the bank account.

Property purchased during marriage. A house, car, or furniture purchased during marriage is community property even if titled in one spouse's name only.

Business income. Revenue from a business operated during marriage is community property.

Investment returns. Dividends, interest, and capital gains on community property remain community property.

Retirement benefits. The portion of retirement accounts earned during marriage is community property.

Property That Is NOT Community Property

Property owned before marriage. If you owned a house before getting married, it remains your separate property.

Gifts to one spouse. If your parents give you $50,000, that is your separate property even though you received it during marriage.

Inheritances. Property you inherit belongs to you alone.

Property acquired after separation. Once you legally separate, new acquisitions are separate property.

The 50/50 Rule at Death

When a married person dies in California, community property splits according to a simple rule: each spouse already owns 50%.

What the Deceased Spouse Can Control

The deceased spouse can leave their 50% to anyone through a will or trust. They can give it to the surviving spouse, to children, to charity, or to anyone else.

What the Deceased Spouse Cannot Control

The deceased spouse cannot give away the surviving spouse's 50%. That half never belonged to the deceased. The surviving spouse keeps it automatically.

Example

A married couple owns a home worth $1,000,000 as community property. The husband dies.

Wife already owns $500,000 (her 50%)
Husband's $500,000 passes according to his will
If the will leaves everything to the wife, she now owns 100%
If the will leaves his half to the children, wife owns 50% and children own 50%

What Happens at Death: Three Scenarios

Scenario 1: Everything Goes to Surviving Spouse

Most married couples leave everything to each other. The will says "I leave all my property to my spouse."

Result:

Surviving spouse's 50% (already owned) = 50%
Deceased spouse's 50% (inherited through will) = 50%
Total: Surviving spouse owns 100%

The surviving spouse can use a spousal property petition to confirm this ownership without full probate.

Scenario 2: Property Goes to Children

Some estate plans leave property directly to children, especially in second marriages.

Result:

Surviving spouse's 50% (already owned) = 50%
Deceased spouse's 50% (passes to children per will) = 50%
Surviving spouse and children co-own the property

This creates shared ownership, which can cause problems. Children and surviving spouse must agree on selling, renting, or managing the property.

Scenario 3: No Will (Intestate)

If the deceased spouse has no will, California intestate succession law applies. For community property, the surviving spouse receives the deceased spouse's half.

Result:

Surviving spouse's 50% + deceased spouse's 50%
Total: Surviving spouse owns 100%

For community property, dying without a will produces the same result as a will leaving everything to the spouse.

The Double Step-Up Tax Advantage

California's community property status provides a major tax benefit called the double step-up in basis.

What Is Step-Up in Basis?

When you inherit property, your tax basis (what counts as your "cost" for capital gains purposes) "steps up" to the fair market value at death. This eliminates capital gains tax on appreciation that occurred during the deceased person's lifetime.

Why California Is Special

In most states, when one spouse dies, only the deceased spouse's share gets a step-up. The surviving spouse's share keeps its original basis.

In California, both halves of community property receive a stepped-up basis. The entire property's basis resets to fair market value at death.

Real Numbers

John and Mary bought a home in 1995 for $300,000. In 2025, it is worth $1,500,000. John dies.

In a Separate Property State:

Mary's half: Original basis of $150,000
John's half: Steps up to $750,000
Mary's total basis: $900,000
If Mary sells for $1,500,000, capital gain is $600,000
Federal tax at 20%: $120,000
California tax at 13.3%: $79,800
Total tax: $199,800

In California (Community Property):

Mary's half: Steps up to $750,000
John's half: Steps up to $750,000
Mary's total basis: $1,500,000
If Mary sells for $1,500,000, capital gain is $0
Total tax: $0

The double step-up saved Mary nearly $200,000 in taxes.

Learn more: California Step-Up in Basis Guide

Quasi-Community Property

What if you lived in another state during your marriage and then moved to California?

California created "quasi-community property" to address this. Property that would have been community property if acquired in California, but was acquired elsewhere, is treated as community property at death.

Example

Tom and Susan lived in Texas for 20 years. They bought a home there for $200,000. They moved to California, where the home is now worth $800,000.

Even though Texas uses different property rules, California treats that home as quasi-community property. When Tom dies:

Susan's half gets the step-up benefit
Tom can only dispose of his half
Susan has the same rights as with true community property

Common Problems

Mixed Community and Separate Property

Sometimes assets are part community and part separate property.

Example: A wife owns a house before marriage worth $200,000 (separate property). During marriage, the couple pays down the mortgage using community funds (community property). The house appreciates to $600,000.

At death, the house has both separate and community components. Untangling these requires careful analysis of contributions, appreciation, and documentation.

Transmutation

Spouses can change property from community to separate (or vice versa) through a written transmutation agreement. This must be in writing and signed. Oral agreements do not count.

Some couples inadvertently change property character by putting separate property into joint accounts or vice versa without documentation.

Title Does Not Determine Character

In California, how property is titled does not control whether it is community or separate property. A house titled in one spouse's name alone is still community property if purchased during marriage with community funds.

This surprises many people who assume that "my name on the deed means it's mine."

Planning Considerations

Should We Hold Property as Community Property or Joint Tenancy?

Both avoid probate, but community property provides the double step-up. Joint tenancy only provides a single step-up on the deceased spouse's half.

For appreciated property, community property (or community property with right of survivorship) is usually better for tax purposes.

Should We Use a Trust?

A revocable living trust can hold community property while preserving its character. The trust avoids probate, maintains privacy, and provides incapacity planning. The double step-up still applies.

What About Property Bought Before Marriage?

Separate property does not get the double step-up. If you have significant separate property, consider strategies to maximize basis benefits for your heirs.

Frequently Asked Questions

Does community property go through probate in California?

The surviving spouse's 50% share does not go through probate because it was never the deceased spouse's property. The deceased spouse's 50% may require probate, a spousal property petition, or other transfer method depending on how the estate is planned.

Can my spouse give away my half of community property?

No. Each spouse can only give away their own half. Any attempt to give away the other spouse's share is invalid as to that portion.

What if we disagree about whether property is community or separate?

Disputes are resolved in court. Property acquired during marriage is presumed to be community property. Anyone claiming otherwise must prove it with evidence.

Does California have an elective share like some states?

No. California does not allow a surviving spouse to "elect against" the will and take a forced share. However, the surviving spouse is protected by owning their 50% of community property automatically.

How do I prove property is community property?

Property acquired during marriage is presumed to be community property. Keep records showing the date of acquisition and source of funds. If funded with earnings during marriage, it is community property.

Related Guides

Sources:

California Family Code Sections 760-761 (Community Property)
California Probate Code Section 6401 (Intestate Share of Surviving Spouse)
Internal Revenue Code Section 1014(b)(6) (Community Property Step-Up)

This guide provides general information about California community property. Consult with a California attorney for advice specific to your situation.