Grounds for Divorce in California — No-Fault and What Courts Require

California eliminated fault-based divorce in 1969, making it the first state in the nation to adopt a no-fault divorce system. Today, the only grounds for divorce in California are irreconcilable differences and permanent legal incapacity to make decisions. Understanding what grounds for divorce mean in California — and what they do not mean — is the starting point for any dissolution proceeding.

What Are the Grounds for Divorce in California?

California Family Code section 2310 provides two grounds for dissolution of marriage: (1) irreconcilable differences that have caused the irremediable breakdown of the marriage, and (2) permanent legal incapacity to make decisions. The first ground — irreconcilable differences — is used in the overwhelming majority of California divorces. The second ground applies in narrow circumstances where one spouse lacks the permanent mental capacity to make decisions about the divorce itself. No other grounds for divorce exist in California — there is no fault-based ground for adultery, cruelty, abandonment, or desertion.

Irreconcilable Differences — What It Means

Irreconcilable differences meaning is deliberately broad. It means only that one or both spouses believe the marriage has broken down in a way that cannot be repaired. Courts do not require the parties to specify what the irreconcilable differences are. Courts do not require both parties to agree that the marriage is over — one spouse's genuine belief that the marriage has irretrievably broken down is sufficient. A spouse who contests the divorce cannot prevent it by claiming the differences are reconcilable; California courts will not force unhappy spouses to remain married.

No-Fault Divorce and Its Implications

No-fault divorce in California means that evidence of marital misconduct — adultery, cruelty, substance abuse, abandonment — is not admissible as a basis for property division, spousal support, or the divorce itself. The court does not care why the marriage ended when it is dividing community property or setting support. This principle prevents California divorce proceedings from becoming public hearings about private conduct. Marital fault becomes relevant only in very specific and narrow circumstances: domestic violence convictions may affect spousal support under Family Code section 4325; dissipation of marital assets on an extramarital affair may create a reimbursement claim; and domestic violence within five years of filing creates a custody presumption under Family Code section 3044.

Contested vs. Uncontested Divorce in California

A contested divorce is not one where a spouse is contesting the grounds — since grounds are essentially automatic in California — but rather one where the spouses cannot agree on the terms of the divorce: how property will be divided, how much support will be paid, and how custody will be handled. An uncontested divorce is one where both spouses have reached agreement on all issues before the final judgment. The grounds for divorce — irreconcilable differences — are the same whether the divorce is contested or uncontested. What differs is how much court involvement is needed to resolve the substantive issues.

Permanent Legal Incapacity — California's Second Divorce Ground

The second ground for divorce in California — permanent legal incapacity to make decisions — is rarely used but important in specific circumstances. This ground applies when one spouse has a permanent mental condition, typically demonstrated by psychiatric testimony, that renders them unable to make decisions about the dissolution. This ground is distinct from temporary incapacity or from mental illness generally — it requires permanence and must affect decision-making capacity specifically. A conservator may petition for dissolution on behalf of an incapacitated spouse under these circumstances.

Grounds for Divorce — How Other States Differ

While California uses no-fault grounds exclusively for new divorces, some other states still permit fault-based divorce on grounds including adultery, extreme cruelty, desertion, or conviction of a felony. In those states, establishing fault can affect property division and support determinations. California residents who were previously divorced in a fault-based state and are re-divorcing in California will find that California's no-fault system applies to their current marriage. The law of the state where the divorce is filed governs the proceeding, regardless of where the marriage occurred or where a prior divorce was obtained.

How to File for Divorce Based on Irreconcilable Differences

Filing for divorce on grounds of irreconcilable differences in California requires completing the Petition for Dissolution of Marriage (FL-100) and checking the box indicating irreconcilable differences as the ground. No supporting evidence, documentation, or specification of what the differences are is required. The petition is filed in the Superior Court in the county where either spouse has resided for at least three months. From the date the respondent is served, the six-month waiting period begins to run before the divorce can be finalized.

What Happens If Only One Spouse Wants a Divorce?

California law does not require mutual consent for divorce. If one spouse wants a divorce and the other does not, the spouse who wants the divorce can proceed. The non-consenting spouse can respond to the petition and participate in the proceedings — negotiating on property, support, and custody — but cannot prevent the divorce from being granted. A default judgment can be entered if the respondent does not respond at all. In every case, the final result is that the divorce is granted to the petitioning spouse regardless of the other spouse's wishes.

Furubotten Law, APC represents clients in all types of California divorce proceedings — contested and uncontested — throughout Orange County and Riverside County. Call (714) 795-3862 for a complimentary case evaluation.

Grounds for Divorce in California — No-Fault and What It Means

Divorce in california laws require only irreconcilable differences as the grounds for divorce. What does irreconcilable differences mean? Substantial reasons for not continuing the marriage that make it appear that the marriage should be dissolved — no proof of wrongdoing by either spouse is required or considered. Divorce law california: pure no-fault since 1969 — California was the first state in the country to adopt a no-fault divorce statute. Divorce law in california for adultery: infidelity is not a grounds for divorce and does not affect property division except when marital funds were spent on the affair. Is adultery illegal in California? No. Is cheating illegal in California? No. Law of cheating in California: civil rather than criminal. Contested vs uncontested divorce on grounds: both are based on irreconcilable differences — the contest is not about whether the marriage should be dissolved but about how assets, support, and custody are divided. Community property definition: all property acquired during the marriage while domiciled in California. Conditions for divorce in california: residency (six months in state, three months in county) and irreconcilable differences. California marriage laws on divorce: a marriage solemnized anywhere in the world is subject to California divorce law if the party filing meets the California residency requirement. Divorce no attorney: self-representation in a no-fault divorce is procedurally feasible for simple uncontested cases. How much is a divorce in california for an uncontested no-fault dissolution? $435 to $450 in filing fees plus $2,000 to $7,000 in attorney fees for most uncontested cases with a simple asset profile. Divorce law news california: California's no-fault divorce grounds have not changed since 1969 and are not subject to any current proposed changes. Divorce rate in california: slightly below the national average, reflecting California's diverse population and later average marriage age. What are sanctions in court for filing a divorce petition that doesn't meet the residency requirements? The court lacks subject matter jurisdiction — the petition can be dismissed and refiled once residency requirements are met.