
California Family Code Section 1101 outlines the fiduciary duties that spouses owe to each other and how to handle a breach of fiduciary duty in court.
Fiduciary duty commonly refers to the responsibilities that business partners have to each other or the responsibilities of professionals, like trustees and attorneys. Fiduciary duty also refers to the responsibilities that spouses owe each other.
Similar to business partnerships, fiduciary duty in a marriage is the duty of each party to handle marital finances and assets in good faith and with integrity. If a spouse were to take unfair advantage of the other, or misuse marital assets for their own gain, this would be a breach of fiduciary duty. The spouse who was a victim of this breach can file a claim for damages.

Section 1101 of the Family Code refers to claims filed when community property is mismanaged, impacting a spouse’s unclaimed half of the community property. Community property includes any assets that a couple obtains during their marriage, such as homes that average $776,233 across the state. Both spouses have an equal claim to community property in California.
The average American inheritance is $46,200, according to Federal Reserve data, and separate property is any assets a spouse gained prior to marriage or after legal separation has been finalized.
Spousal fiduciary duty includes responsibilities such as:
A spouse can breach fiduciary duty through one or more transactions. If the action harms the other spouse’s portion of community property, that spouse can file a claim.
A breach of fiduciary duty may include actions such as:
A breach of spousal fiduciary duty can be very serious.
Even an accidental breach of spousal fiduciary duty is taken very seriously by the court. The court may order penalties such as:
Penalties are significantly more serious when a breach of spousal fiduciary duty is done on purpose. This is when the court determines that fraud, malice, or oppression were used to commit the breach of duty. Then, the penalties are:
The claimant spouse can also gain additional compensation from their spouse. Talk with an Orange County family law attorney to determine the different legal routes open to you if you have been a victim of a breach of spousal fiduciary duty.
Some couples wrongly assume that fiduciary duties end when they separate. Not only does spousal fiduciary duty carry on throughout the divorce process, but it can also continue past the date of a finalized divorce. The duty continues as long as all assets and liabilities are distributed between spouses.
During the process of divorce, spouses have a duty to provide complete and truthful information about their finances. Even when divorce is finalized, fiduciary duty may still apply. This is true until each spouse has individual control over their own awarded property.
California fiduciary duty laws do not operate independently. Several statutes work together to establish financial responsibilities between spouses, define prohibited conduct, and outline potential penalties when one spouse improperly handles community assets. These laws can become highly complex in cases stemming from marriages in Balboa Island, Shady Canyon, Floral Park, and other Orange County neighborhoods.
When a family law case is heard at the Lamoreaux Justice Center, located at 341 The City Drive South in Orange, California, Family Code Section 721 could apply. The section of the Family Code establishes the fiduciary relationship between spouses and requires the highest duty of good faith and fair dealing.
Family Code Sections 1100 and 1102 address the management and control of community property, including restrictions on selling or transferring certain assets without the other spouse’s consent. During divorce proceedings, Family Code Section 2040 imposes Automatic Temporary Restraining Orders, commonly called ATROs, which limit unusual financial activity and require transparency regarding major expenditures or transfers.
Violations of fiduciary duty can involve far more than simply hiding money from a spouse. The judge overseeing your case may examine whether one spouse concealed income, transferred community funds into separate accounts, failed to disclose investments, or improperly used marital assets for personal gain. These can become serious accusations, especially when there are high-value assets involved.
The remedy for misconduct depends on the extent of the violations and other factors. A judge may award financial compensation, attorney’s fees, or a percentage of undisclosed assets to the harmed spouse. In cases involving fraud, malice, or oppression, there may be even more serious penalties that can apply. Because these claims can involve extensive financial records and complex disclosures, they often also require detailed legal and forensic review in court.
Orange County has more than 116,000 millionaire households, and a divorce can mean the loss of crucial assets if you do not hire a spousal support lawyer who understands state spousal fiduciary duty laws. When you hire a spousal support lawyer, you gain representation from an attorney who understands how to protect your rights and interests from the start to the finish of a spousal fiduciary duty case.
A California spousal support attorney can start by learning about your spouse and their handling of family finances. If you have reason to believe that they are hiding assets or denying you access to crucial financial information, your attorney can take steps to enforce transparency on their part. That could entail collecting financial documents, calling for testimony under oath, and potentially asking the court to address the matter.
If your spouse is found to have broken their fiduciary duty, either through negligence or willful misconduct, your lawyer can seek appropriate penalties and consequences. A family law attorney can also protect you from accusations that you violated sections of Family Code 1101. The divorce process can be complex, especially when there are allegations of wrongdoing. Legal support can lead to favorable outcomes in court that protect your rights and financial interests.
California’s Family Code Section 1101 lists the penalties for breaching spousal fiduciary duty. A spouse who has been a victim of a breach may be awarded 50%, or an equal amount, of any asset that was used to commit the breach. This percent is calculated based on the asset’s greatest value when it was being used to breach fiduciary duty. If the breach was done intentionally, the court will award the spouse 100% of the asset, as well as attorney and court fees.
A breach of fiduciary duty to a spouse refers to taking advantage of, or failing to disclose, financial information and resources belonging to both spouses. This includes during marriage and during the divorce process. A spouse who uses community assets without their spouse’s consent is breaching their fiduciary duty. Using community assets to pay off separate debt instead of using available separate assets is also a breach.
For any breach of fiduciary duty claim, the following must be true:
In a marital breach of duty, spouses must have been married or not legally separated, and the claimant spouse’s unclaimed half of marital assets was harmed.
Fiduciary negligence refers to a non-action that fails to fulfill a person’s obligations and responsibilities under their fiduciary duty. A breach of duty is a direct action, accidental or purposeful, that harms the party they have a duty to. Fiduciary negligence is the failure to take an action that would prevent harm to the other party.
Our attorneys at Quinn & Dworakowski, LLP, can protect your interests if your spouse has breached fiduciary duty. We have more than 40 years of experience in family courts. We can help you determine if filing a claim against your spouse is the right choice for you. Our firm can also explain how California laws apply to your situation. Contact Quinn & Dworakowski, LLP, today.