You cannot sue for alienation of affection in California. Civil Code section 43.5 abolished the claim decades ago, and no California court will hear one, regardless of how egregious the affair or how deliberate the third party’s conduct.1California Legislative Information. California Civil Code 43.5 What you can do, in the right circumstances, is recover money through the divorce itself when your spouse spent community funds on the affair, or hold your spouse personally liable for breaching the fiduciary duty spouses owe each other.
What Section 43.5 Actually Bans
The statute is categorical and broader than most people realize. It eliminates four causes of action: alienation of affection, criminal conversation (suing someone for sleeping with your spouse), seduction of a person over the age of consent, and breach of promise of marriage.1California Legislative Information. California Civil Code 43.5 There are no exceptions for long-running deceptions, egregious conduct, or third parties who knowingly pursued a married person. If the claim is fundamentally “this person interfered with my marriage,” it will be dismissed.
Criminal conversation deserves its own mention because searchers sometimes look for it as an alternative. California treats it identically to alienation of affection. Fully abolished.
Recovering Community Money Spent on the Affair
This is where most people asking about alienation of affection find real relief in California. When a cheating spouse used marital funds to pay for the affair, two statutes create meaningful financial exposure.
Reimbursement Under Family Code 2602
Family Code section 2602 lets a divorce court award the innocent spouse an additional share of the community estate to offset money the other spouse deliberately misappropriated for personal benefit.2California Legislative Information. California Family Code 2602 Hotel rooms, gifts, trips, rent, restaurant tabs, cash transfers to the third party — if community money paid for it and you can prove it, the court can shift assets in your favor. The award comes out of the offending spouse’s share, so it operates as a direct penalty.
Documentation carries these claims. Bank statements, credit card records, and payment app histories showing where the money went are what a court needs. General accusations without records rarely produce an award.
Breach of Fiduciary Duty Under Family Code 1101
Spouses in California owe each other a fiduciary duty when managing community property. Family Code section 1101 lets the wronged spouse claim 50 percent of any community asset that was concealed or transferred in breach of that duty, plus attorney’s fees, valued at the highest price on the date of the breach, the date of sale, or the date of the court’s award.3California Legislative Information. California Family Code FAM 1101
If the breach was malicious, fraudulent, or oppressive, the penalty rises to 100 percent of the asset.3California Legislative Information. California Family Code FAM 1101 A spouse who secretly moved a large sum to a paramour and gets caught can lose the entire amount. In practical terms, this is often more valuable than an alienation of affection judgment would be in a state that still permits them.
The Divorce Itself Stays No-Fault
Outside of misappropriation and fiduciary breach, infidelity does not change the financial outcome of a California divorce. The state grants dissolution on irreconcilable differences, and the court does not weigh who cheated.4California Legislative Information. California Family Code 2310 The community estate is divided equally.5California Legislative Information. California Family Code 2550 Adultery is not on the list of factors courts use to set spousal support under Family Code section 4320, and it will not enlarge or reduce a support order unless the conduct also involved documented domestic violence, which is separately enumerated.6California Legislative Information. California Family Code 4320
The takeaway: infidelity by itself does not tilt the divorce. Infidelity paid for with community money can.
Narrow Claims Against a Third Party
Intentional Infliction of Emotional Distress
A spouse can sue a third party for intentional infliction of emotional distress, but the standard is deliberately high and the affair alone will not clear it. The plaintiff must show conduct so extreme and outrageous that it exceeded all bounds a reasonable person should tolerate, intent or reckless disregard for causing severe distress, and actual severe distress as a result.7Justia. CACI No. 1600 Intentional Infliction of Emotional Distress – Essential Factual Elements
Where these claims sometimes survive is when the third party’s behavior goes well beyond the affair itself: sustained harassment, threats, deliberate sabotage of your job or other relationships. The claim has to be about how that person treated you, not about the fact that they slept with your spouse. Courts dismiss claims that repackage a garden-variety affair as emotional distress.
Nonconsensual Intimate Images
One scenario does produce a clean claim against a third party. Civil Code section 1708.85 creates a cause of action against anyone who intentionally distributes photos or videos showing nudity or sexual activity when the person depicted had a reasonable expectation of privacy. If a third party circulated intimate images of you, the statute allows damages, attorney’s fees, and an order to stop distribution.8California Legislative Information. California Civil Code 1708.85 The claim targets the distribution, not the affair, so section 43.5 does not bar it.
Filing in Another State That Still Allows the Claim
A handful of states still recognize alienation of affection, including North Carolina, Utah, Hawaii, Mississippi, and South Dakota. People sometimes ask whether a California resident can sue there instead.
It rarely works. The state you file in needs personal jurisdiction over the defendant, which generally means the defendant has meaningful contacts with that state. If the affair partner lives in California and the affair happened in California, a North Carolina court has no basis to hear it. Courts have rejected these filings when the defendant’s tie to the forum amounted to little more than a brief visit.
Even if jurisdiction existed, a court in a heart-balm state could still apply California law under choice-of-law rules when the marriage and the conduct were centered here, which sends the claim to the same statutory dead end. Pursuing this route means hiring counsel in two states with no guarantee of surviving a threshold motion. For most people in California, the reimbursement and fiduciary-duty tools inside the divorce are the realistic path to a financial recovery.