Estate Planning and Family Law in California: Why Your Trust or Will Can Fail If You Ignore This Connection

By Dustin MacFarlane, California State Bar Certified Specialist in Estate Planning, Trust & Probate Law

PRIMARY KEYWORDS: California estate planning family law, divorce estate planning California, blended family trust California, community property estate planning Sacramento

Quick Answer: Can a Divorce or Remarriage Break My California Estate Plan?

Yes. Under California law, divorce automatically revokes gifts to a former spouse in your will (Probate Code Section 6122) but does NOT automatically update trusts, beneficiary designations on life insurance or retirement accounts, or joint tenancy ownership. Additionally, remarriage creates new community property rights under California Family Code Sections 760-781 that can override your existing estate plan. Many Sacramento families discover too late that their trust still benefits an ex-spouse or fails to protect children from a prior marriage because they never updated documents after major life changes.

Better approach: Review and update your California estate plan immediately after marriage, divorce, remarriage, birth of children, or acquisition of significant assets. Work with a California estate planning attorney to ensure family law and estate planning documents are properly coordinated.

How California Family Changes Affect Estate Planning

Executive Summary

Estate planning and family law are deeply connected in California, but most Sacramento families do not realize it until something goes wrong.

Marriage, divorce, children, and blended families all affect how assets are owned, controlled, and ultimately distributed under California law.

This article explains how these crossover issues impact California estate planning, and why a trust or will that ignores family law realities can fail when it matters most.

The key takeaway is simple: Your California estate plan is not just about documents. It is about relationships, legal rights under California Family Code, and timing.

If those are not aligned, even a well-drafted Sacramento estate plan can fall apart.

This is especially important for California married couples, second marriages, and blended families with children from prior relationships.

If you live in Sacramento or Northern California, own property, or have a spouse or children, this is something you need to pay attention to now, not later.

Understanding the Collision Between California Estate Planning and Family Law

Most people think estate planning is one lane and family law is another.

In reality under California law, they are on the same road, and sometimes they crash into each other.

Marriage, divorce, child support under California Family Code, and property ownership all shape how your Sacramento estate plan works.

If those issues are not coordinated under California law, the results can be very different from what you expected.

I have seen this happen more times than you would think in 17 years of Sacramento estate planning practice.

Why California Is Different from Other States

California is a community property state under Family Code Sections 760-781.

Only 9 states follow community property law (California, Arizona, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, Wisconsin).

That means assets acquired during marriage are generally owned equally by both spouses under California law, regardless of whose name is on the title.

This matters because under California Probate Code, you cannot give away what you do not fully own.

California Probate Code Section 100 explains that a surviving spouse retains their one-half share of community property regardless of what a will or trust says.

So if your Sacramento estate plan tries to give away your spouse’s community property share, it will not work under California law.

Marriage Changes Everything Under California Law

When you get married in California, your financial world changes overnight under Family Code Section 760.

Assets you acquire during marriage are typically community property.

Even assets you owned before marriage (separate property) can become mixed with community property if not handled carefully.

This is called commingling under California law.

Once that happens, it can be very difficult to separate what belongs to whom, and expensive forensic accounting may be required.

Real World Example from Sacramento: Commingled Property Disaster

A Sacramento client owned a rental property worth $300,000 before marriage (separate property).

After marriage, they used joint funds from community earnings to pay the mortgage and make $100,000 in improvements.

Years later, they assumed it was still entirely separate property and planned to leave it to children from their first marriage.

It was not that simple under California community property law.

When they passed away, their second spouse had a legal claim to a portion of the value under Moore-Marsden calculations.

The resulting dispute cost the estate $45,000 in legal fees and destroyed family relationships.

That could have been prevented with proper California estate planning and separate property tracking.

Divorce and California Estate Planning

Divorce does not just end a marriage under California Family Code.

It reshapes your entire estate plan in complex ways.

California Probate Code Section 6122 generally revokes gifts to a former spouse in a will after divorce.

California Probate Code Section 5040 does the same for power of attorney.

But that does not fix everything under California law.

Trusts, beneficiary designations on life insurance and retirement accounts, and jointly owned assets may still benefit an ex-spouse if not manually updated.

The “I Thought Divorce Handled It” Problem

Many Sacramento families assume divorce automatically cleans up their estate plan.

It does not under California law.

I have seen life insurance policies still naming an ex-spouse years after divorce.

Under California law, that money went exactly where the beneficiary designation said, not where the person intended.

In one Sacramento case: $500,000 life insurance policy paid to ex-spouse instead of children because beneficiary designation was never updated after divorce.

The children had no legal recourse under California law.

Blended Families and Competing Interests

Blended families create some of the most complex California estate planning issues.

You may want to provide for your current spouse while also protecting your children from a prior relationship.

That is easier said than done under California community property law.

Without careful planning, one side often ends up disappointed or completely disinherited.

Competing Goals in Sacramento Blended Families

Three competing interests that must be balanced:

Goal 1: Protect current spouse’s financial security

• Surviving spouse needs income and assets to live
• California law grants community property rights
• Spouse may have legal right to family home

Goal 2: Preserve inheritance for children from first marriage

• Children expect to inherit from biological parent
• Fear that new spouse will disinherit them later
• Want protection if parent’s assets are community property

Goal 3: Maintain control over family assets

• Creator wants to dictate ultimate distribution
• Desire to prevent new spouse from changing plan
• Need to protect assets from spouse’s creditors or new marriages

Without proper California estate planning structure, at least one of these goals will fail.

Common Sacramento Blended Family Mistake

Leaving everything outright to a surviving spouse and assuming they will “do the right thing” later for your children.

Sometimes they do.

Sometimes they do not.

And legally under California law, they are not required to.

I have seen cases where the second spouse:

• Spent all inherited assets during their lifetime
• Changed their own will to benefit their children, not yours
• Remarried and left everything to the new spouse
• Cut off communication with stepchildren entirely

Your children from the first marriage received nothing, despite your intentions.

This happens frequently in Sacramento blended families.

California Trusts as a Solution (But Not a Simple One)

Trusts are often used to balance competing blended family interests under California law.

For example, a Qualified Terminable Interest Property (QTIP) trust or Survivor’s Trust can allow a surviving spouse to use assets during their lifetime, while preserving the remainder for children from your first marriage.

But the details matter enormously under California Probate Code.

If the trust is not drafted properly for California law, disputes can arise over:

• What distributions the spouse is entitled to receive
• Whether spouse can invade principal or only receive income
• Who controls investment decisions
• What happens if spouse remarries

These disputes often end up in Sacramento Superior Court probate litigation.

Minor Children and California Guardianship Issues

If you have minor children in California, estate planning is not optional.

You need to name guardians in your will under California Probate Code Section 1500.

You also need to structure how assets will be managed for those children (usually through a trust).

Without a plan, the Sacramento Superior Court decides under California Probate Code Section 1510.

Real World Example: No Guardian Named

A Sacramento couple with young children (ages 3 and 7) had no will or trust.

When they both passed away in an accident, the court had to appoint a guardian for the children under California Probate Code Section 1510.

Multiple family members petitioned for guardianship, creating a contested court battle.

The process was:

• Slow (18 months to resolve)
• Expensive ($65,000 in combined legal fees paid from children’s inheritance)
• Public (all court records accessible)
• Traumatic for the children (bounced between relatives during litigation)

Proper California estate planning could have avoided all of this.

Child Support and California Estate Planning

Child support obligations under California Family Code do not disappear when someone passes away.

In some cases under California law, the estate may be required to satisfy ongoing support obligations.

This can affect how assets are distributed and reduce what beneficiaries receive.

California Family Code Section 4061 allows child support to be collected from a deceased parent’s estate.

Spousal Rights at Death Under California Law

California law provides strong protections for surviving spouses.

Even if a will or trust attempts to disinherit a spouse, they may still have rights to community property under California Probate Code Section 100.

Additionally, California Probate Code Section 21610 allows a surviving spouse to petition for a family allowance during estate administration.

These rights can override your estate plan if not properly addressed.

California Asset Ownership Breakdown

Separate Property (Not Community Property):

• Owned before marriage
• Inherited during marriage (if kept separate)
• Gifted specifically to one spouse (if kept separate)
• Acquired after legal separation

Community Property (Owned 50/50 by Both Spouses):

• Earned income during marriage
• Assets purchased with community funds during marriage
• Business interests acquired during marriage
• Real estate purchased during marriage (even if one name on title)
• Retirement account contributions during marriage
• Investment account growth during marriage (if funded with community property)

Understanding this distinction under California Family Code Sections 760-781 is critical to estate planning.

If you try to leave community property assets to someone other than your spouse, your plan will fail under California law.

California Property Title Matters Enormously

How assets are titled under California law can determine who receives them, often overriding your trust or will.

Title types and estate planning consequences:

Joint Tenancy with Right of Survivorship:

• Passes automatically to surviving joint owner
• Bypasses your trust or will entirely
• Cannot be changed by estate plan
• Often used for married couples and parent-child accounts

Trust Ownership:

• Assets titled in trust name follow trust terms
• Avoids probate under California Probate Code Section 13050
• Can be controlled by your estate plan
• Best option for most Sacramento families

Retirement Accounts (IRA, 401k):

• Pass by beneficiary designation under federal law
• Do NOT follow your will or trust
• Must name individual beneficiaries or trust
• Spousal consent required in some cases

Life Insurance:

• Passes by beneficiary designation
• Bypasses probate
• Not controlled by will or trust unless trust is named beneficiary

If these are not coordinated under California law, the estate plan can completely break down.

Beneficiary Designations Override Your California Estate Plan

Life insurance and retirement accounts under California law do not follow your will or trust.

They follow the named beneficiary designation on file with the insurance company or financial institution.

If that designation is outdated, your entire Sacramento estate plan may not matter.

Real World Example: Outdated Beneficiary Designation Disaster

A Sacramento client updated their trust to leave everything equally to their three children.

They forgot to update their $800,000 IRA beneficiary designation, which still listed their brother from 20 years earlier.

When they passed away, the IRA went to the brother under the beneficiary designation.

The trust distributed the remaining $400,000 equally to the three children ($133,000 each).

The brother was not legally required to share the $800,000 IRA with the children.

Total family wealth lost to unintended beneficiary: $800,000.

There was nothing the children could do under California law.

This is one of the most common and costly mistakes in Sacramento estate planning.

California Domestic Partnerships and Estate Planning

Registered domestic partners in California have rights nearly identical to spouses under Family Code Section 297.

California estate planning must account for those community property and inheritance rights.

Ignoring them can lead to unintended consequences under California law.

If you are in a registered domestic partnership, your estate plan should be structured exactly as if you were married under California law.

The Danger of DIY California Estate Planning

Online forms and templates do not account for complex California family dynamics.

They do not ask the right questions about:

• Community property vs separate property
• Blended family issues
• California-specific laws
• Beneficiary designation coordination

They do not adapt to California Probate Code or Family Code.

That is where problems start for Sacramento families.

I have spent 17 years fixing DIY estate planning disasters that cost families tens of thousands in litigation.

Why Timing Matters in California Estate Planning

California estate planning is not a one-time event.

It must be reviewed and updated when:

• You get married (creates community property under Family Code Section 760)
• You get divorced (revokes some provisions under Probate Code Section 6122)
• You have children (creates guardianship needs)
• You remarry (creates blended family issues)
• You acquire significant assets (retirement accounts, real estate, business)
• Children turn 18 (no longer minors under California law)
• You move to or from California (community property state transition)
• Tax laws change (federal estate tax exemption fluctuates)

Failing to update your plan after these events is one of the most common mistakes.

The Cost of Getting California Family Law and Estate Planning Wrong

Mistakes in this crossover area can lead to:

Financial losses:

• Assets distributed to wrong person (ex-spouse, wrong children)
• Probate litigation costs of $50,000-$500,000+
• Increased taxes due to poor planning

Family consequences:

• Destroyed relationships between children and stepparents
• Sibling disputes over perceived unfairness
• Years of Sacramento probate court battles

Emotional trauma:

• Children disinherited unintentionally
• Public court records revealing family conflicts
• Delays in receiving inheritance (2-5 years in contested cases)

These are not small problems under California law.

They can change the outcome for your entire Sacramento family for generations.

When Sacramento Families Should Get Professional California Estate Planning Help

You should strongly consider working with a California estate planning attorney if:

• You are married or remarried (community property issues)
• You have children from multiple relationships (blended family planning)
• You own California real estate (community property and Proposition 19 issues)
• You have significant assets ($500,000+)
• You have been divorced (need to update all documents)
• Your spouse has children from prior relationship (competing interests)
• You are in a domestic partnership (same legal issues as marriage)

Trying to navigate these California law issues alone is financially risky.

The cost of proper planning: $3,000-$10,000.

The cost of fixing mistakes after death: $50,000-$500,000+ in Sacramento probate litigation.

Frequently Asked Questions: California Family Law and Estate Planning

Q: Does marriage automatically change my estate plan in California?

A: Yes, significantly. Marriage creates community property rights under California Family Code Section 760, meaning your spouse owns 50% of assets acquired during marriage regardless of whose name is on title. Your estate plan must account for these rights or it will fail.

Q: What happens to my California estate plan after divorce?

A: California Probate Code Section 6122 automatically revokes gifts to a former spouse in your will, and Section 5040 revokes their power of attorney. However, trusts and beneficiary designations on life insurance and retirement accounts remain valid and must be manually updated to remove your ex-spouse.

Q: Can I disinherit my spouse in California?

A: You can attempt to, but California Probate Code Section 100 gives your surviving spouse the right to their one-half share of all community property regardless of what your will or trust says. You can only fully disinherit a spouse if all assets are your separate property and they sign a valid spousal waiver.

Q: What is California community property and why does it matter for estate planning?

A: Community property under California Family Code Sections 760-781 includes assets acquired during marriage, which are owned equally by both spouses. This matters because you cannot give away your spouse’s half through your estate plan – they automatically retain it under California law.

Q: Do beneficiary designations on my IRA and life insurance override my California trust?

A: Yes, absolutely. Accounts like life insurance and retirement plans pass according to their beneficiary designations under federal and California law, completely bypassing your trust or will. This is one of the most common ways estate plans fail – outdated beneficiary designations.

Q: What happens if I do not name a guardian for my minor children in California?

A: The Sacramento Superior Court will decide who becomes the guardian under California Probate Code Section 1510. This can lead to family disputes, court battles costing $20,000-$100,000 in legal fees, and outcomes you never intended.

Q: How often should I update my California estate plan?

A: You should review your estate plan immediately after major life events: marriage, divorce, remarriage, birth of children, death of named beneficiaries or trustees, significant asset acquisition, or moving to/from California. At minimum, review every 3-5 years.

Q: Are blended families harder to plan for under California law?

A: Yes, significantly. Blended families involve competing interests between current spouse and children from prior relationships. Without careful California estate planning using trusts like QTIP trusts or Survivor’s Trusts, one group will likely be unintentionally disinherited.

Q: Can a California trust protect my children from a prior marriage if I remarry?

A: Yes, if structured properly under California law. Trusts can provide income or limited access for a surviving spouse while preserving principal for your children. However, community property created during the new marriage will belong 50/50 to your new spouse regardless of the trust.

Q: Do I need a California-specific estate plan, or can I use a generic online form?

A: You absolutely need a California-specific estate plan. California’s community property laws, Probate Code, Family Code, and Proposition 19 property tax rules are unique. Generic online forms do not address these critical California issues and frequently fail.

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

A: Separate property includes assets owned before marriage, inherited assets, and gifts specifically to one spouse (if kept separate). Community property includes all assets acquired during marriage, regardless of whose name is on title. This distinction determines what you can control in your estate plan.

Q: If I get divorced, do I need to create an entirely new California estate plan?

A: Not necessarily entirely new, but extensive updates are essential. You must update your trust, will, power of attorney, healthcare directive, and all beneficiary designations on life insurance, retirement accounts, and bank accounts. Many Sacramento families only update some documents and create serious problems.

Final Thought: California Estate Planning Is About People, Not Just Documents

Estate planning under California law is not just about documents.

It is about people, relationships, and California legal rights under Family Code and Probate Code.

When California family law and estate planning are not aligned, the results can be messy, expensive, and devastating for Sacramento families.

The safest approach is to treat your California estate plan as a living system that evolves with your life.

Review it after every major family change:

• Marriage creates community property
• Divorce requires comprehensive updates
• Remarriage creates blended family issues
• Children require guardianship planning

Because when it comes to your Sacramento family’s future, guessing is not a strategy under California law.

And fixing mistakes after death costs 10-50 times more than proper planning while you are alive.

About the Author

Dustin MacFarlane is a California State Bar Certified Specialist in Estate Planning, Trust & Probate Law (State Bar #262162) and founder of California Probate and Trust, PC. He has been helping Sacramento and Northern California families navigate the intersection of family law and estate planning since 2009.

California State Bar certification as a Certified Specialist requires passing a rigorous examination, substantial specialized experience, continuing education, and peer review recognition. Fewer than 10% of California attorneys hold this credential.

Dustin does not handle litigation or family law matters-his practice focuses exclusively on estate planning and trust administration, helping families coordinate their estate plans with California’s unique community property and family law requirements.

California Probate and Trust, PC

6957 Douglas Blvd., Granite Bay, CA 95746

Phone: (866) 400-0058

Email: dustin@cpt.law

This article reflects California Probate Code, Family Code, and estate planning law as of March 2026. It is provided for general information only and does not constitute legal or family law advice. Every situation is unique; consult with a qualified California estate planning attorney about your specific circumstances.

About the Author: Dustin MacFarlane, Esq.

California Licensed Attorney | Estate Planning Specialist

Dustin MacFarlane is the founder of California Probate and Trust, PC, with over 15 years of experience in estate planning, probate administration, and trust law. Licensed by the California State Bar, Dustin has helped thousands of California families protect their assets and plan for the future.

CA Bar License: Active | Practice Areas: Estate Planning, Probate, Trust Administration | Location: Granite Bay, CA