Every state in the country now offers some version of no-fault divorce. That wasn’t always the case. Until 2010, at least one state still required you to prove your spouse did something wrong before a court would end the marriage.
But here’s what most people get wrong — “no-fault” doesn’t mean fault disappeared from the system. It means you don’t have to prove it. In roughly 33 states, you still can. And in a handful of those states, proving fault changes how much money you walk away with, whether you receive spousal support, and how long the whole process takes.
The real question isn’t whether no-fault or fault divorce exists. It’s whether choosing one over the other actually changes your outcome in court. In some states, the answer is a definitive yes. In others, it makes zero difference.
This article breaks down how both systems work, which states fall into which category, what fault grounds actually look like in practice, and where the financial stakes are highest. Every claim is sourced directly from state statutes and official court resources.
- No-fault divorce requires only a sworn statement that the marriage is broken — no misconduct needs to be proved. Every state now offers it; New York was the last to add it in 2010.
- About 33 states still allow fault grounds (adultery, cruelty, abandonment) — but proving fault only changes your financial outcome in some of them, not all.
- Under California Family Code §2335, fault evidence is inadmissible in divorce proceedings — courts cannot consider misconduct in either property division or spousal support.
- Oregon ORS §107.036 goes furthest — it expressly prohibits courts from considering fault in both property division and spousal support, with no exceptions.
- Under Virginia Code §20-107.1, adultery is a consideration in spousal support determinations — and in the most severe cases can act as a bar to receiving any support at all.
What Is No-Fault Divorce and How Does It Work?
No-fault divorce means neither spouse has to prove the other did something wrong. The marriage is over because at least one person says it is.
The legal language varies by state. California uses “irreconcilable differences.” Texas calls it “insupportability.” Colorado, Wisconsin, and Washington use “irretrievable breakdown.” The labels are different but the concept is identical — the court doesn’t need to assign blame.
California was the first state to adopt pure no-fault divorce. The Family Law Act of 1969 took effect on January 1, 1970, and eliminated fault entirely as a basis for ending a marriage. The California Family Code §2310 still reflects that framework — irreconcilable differences or incurable insanity are the only two grounds available.
The model for most states came from the Uniform Marriage and Divorce Act, first published in 1970 by the Uniform Law Commission. Section 302 of the UMDA established the “irretrievable breakdown” standard and recommended courts stop treating divorce as something one innocent spouse gets awarded against a guilty one. The UMDA’s own prefatory note put it directly — the act “totally eliminated the traditional concept that divorce is a remedy granted to an innocent spouse.”
New York was the last state to add a no-fault option, doing so in 2010 under DRL §170(7). As of February 2026, that section requires only that one spouse state under oath that the marriage has broken down irretrievably for at least six months.
In pure no-fault states, that’s the end of the inquiry. No evidence of misconduct. No testimony about who did what. The marriage is over because the court found it irretrievably broken.
What Is Fault-Based Divorce? Common Grounds Explained
Fault-based divorce requires one spouse to prove the other committed specific misconduct that the state recognizes as legal grounds for ending the marriage.
The most common fault grounds across states that still allow them include adultery, cruelty or cruel treatment, abandonment or desertion (typically for one year), felony conviction with imprisonment, habitual drunkenness or substance abuse, and in some states, impotency or insanity.
Take Texas. The Texas Family Code Chapter 6 lays out both no-fault (“insupportability” under §6.001) and fault grounds — cruelty, adultery, felony conviction, abandonment for at least one year, living apart for three years, and confinement in a mental hospital.
Virginia offers a similar dual system. Under Virginia Code §20-91, fault grounds include adultery, sodomy or buggery outside the marriage, felony conviction with more than one year of confinement, and cruelty combined with reasonable apprehension of bodily harm or willful desertion.
Georgia has one of the longest fault ground lists in the country — 13 total under O.C.G.A. §19-5-3 (Official Code of Georgia Annotated, available via code browser at legis.ga.gov). That list includes everything from adultery and desertion to habitual intoxication, habitual drug addiction, cruel treatment, and pregnancy by another person unknown to the husband at the time of marriage.
Here’s the practical reality. Proving fault requires evidence. That means testimony, documentation, sometimes private investigators. The New York Courts system states this plainly — a fault divorce based on adultery “can be difficult and expensive to prove because the testimony of the Plaintiff is not enough and other evidentiary requirements must be satisfied.”
A lot of people assume filing on fault grounds automatically gives them leverage. It doesn’t work that way in most courtrooms. Fault is one factor among many, and in several states it carries no weight at all.
No-Fault vs. Fault Divorce: Key Differences Side by Side
The distinction comes down to three things — what you have to prove, how long it takes, and whether it changes the financial outcome.
Proof. In a no-fault filing, one spouse states under oath that the marriage is broken. No evidence of misconduct required. In a fault filing, the accusing spouse must present evidence — testimony, records, documentation — that the other spouse committed a specific act recognized under state law.
Timeline. No-fault divorces move faster in virtually every jurisdiction. Many states allow streamlined procedures, affidavit-based hearings, or even online processing for uncontested no-fault cases. Fault cases require evidentiary hearings, witness testimony, and sometimes trial. Virginia’s code illustrates this — Virginia Code §20-106 permits evidence by affidavit for no-fault divorces when there’s a settlement agreement, while fault divorces require live oral testimony.
Financial impact. This is where the real differences emerge, and they vary dramatically by state. In California, Oregon, Wisconsin, and Colorado, fault plays zero role in property division or spousal support — it’s excluded by statute. In Virginia, Texas, Georgia, and South Carolina, fault can directly affect how money gets divided and whether spousal support is awarded at all.
Say you’re in Oregon versus Virginia, and both cases involve adultery. In Oregon, the court cannot even hear evidence about it. Oregon Revised Statutes §107.036 explicitly bars fault from both property division and spousal support determinations. In Virginia, that same adultery could be a statutory bar to receiving any spousal support whatsoever.
Same facts. Completely different legal consequences. The state you’re in determines whether fault matters.
Which States Allow Fault-Based Divorce?
States fall into two broad categories — pure no-fault states where fault grounds simply don’t exist, and states that offer both fault and no-fault options.
Roughly 17 states plus the District of Columbia are considered pure no-fault. That includes California, Florida, Wisconsin, Oregon, Washington, Colorado, Nebraska, Montana, Iowa, Michigan, Minnesota, and Hawaii, among others. In these states, the only way to end a marriage is to assert that it’s irretrievably broken or that irreconcilable differences exist.
The remaining states — approximately 33 — allow both fault and no-fault grounds. New York, Texas, Virginia, Georgia, South Carolina, North Carolina, and Mississippi all fall into this category.
Illinois is worth looking at. It offered both fault and no-fault grounds for decades. Illinois eliminated all fault grounds effective January 1, 2016 through Public Act 99-90. The only remaining ground is irretrievable breakdown under 750 ILCS 5/401.
One state operates differently from all others. Mississippi requires both spouses to consent to a no-fault divorce based on irreconcilable differences under Miss. Code Ann. §93-5-2, available via the Mississippi Secretary of State code database. If one spouse objects, the filing spouse must either prove fault grounds or wait out a two-year separation period. The Mississippi Judiciary’s self-help guide confirms it plainly — if your spouse refuses to sign, your irreconcilable differences divorce will not be granted.
How Fault Grounds Affect Alimony and Spousal Support
This is where fault carries its sharpest teeth. In several states, proving fault — particularly adultery — can eliminate a spouse’s right to receive support entirely.
Virginia has the most aggressive statutory provision. Under Virginia Code §20-107.1, no permanent spousal support shall be awarded to a spouse if the other spouse has grounds for divorce based on adultery. That’s not a discretionary factor — it’s a statutory bar. The only exception requires clear and convincing evidence that denying support would constitute “manifest injustice.”
Take a couple married 20 years. One spouse stayed home raising children. The other spouse committed adultery. In most states, that spouse who stayed home would have a strong alimony case based on need and earning disparity. In Virginia, the adultery finding could eliminate their support entirely unless the court finds manifest injustice — a high standard to meet.
South Carolina follows a similar rule. Under S.C. Code §20-3-130, no alimony may be awarded to a spouse who commits adultery before the formal signing of a settlement agreement or entry of a court order. Georgia’s O.C.G.A. §19-6-1(b) (Official Code of Georgia Annotated, available via code browser at legis.ga.gov) goes further — both adultery and desertion serve as absolute bars to alimony, not just discretionary factors.
Texas Family Code §8.052 treats fault as one consideration among several. It lists “marital misconduct, including adultery and cruel treatment” as a factor courts weigh when determining maintenance — but it’s not an automatic bar.
Compare that to California, where Family Code §2335 prohibits courts from even considering specific acts of misconduct when awarding spousal support. Oregon takes the strongest position of all — ORS §107.036 contains separate statutory clauses barring fault evidence in both property division and spousal support.
Where you live determines whether fault changes the money.
Does Fault Change How Property Is Divided in Divorce?
It depends entirely on the state’s property division statute.
In pure no-fault states, fault is excluded from the property equation by law. Wisconsin §767.61 divides marital property “without regard to marital misconduct.” Colorado’s C.R.S. §14-10-113 (Colorado Revised Statutes, hosted by LexisNexis via leg.colorado.gov) doesn’t include fault among its property division factors. Oregon’s §107.036 bars it explicitly.
In states that allow fault to factor in, it operates as one consideration among many — never the sole determinant. Texas requires a “just and right” division of community property under Family Code §7.001, and courts may consider adultery or cruelty as grounds for awarding a disproportionate share. But the court also weighs earning capacity, health, education, the size of the estate, and a dozen other variables.
Virginia’s §20-107.3 lists 11 factors for equitable distribution. Factor five is “the circumstances and factors which contributed to the dissolution, specifically including any ground for divorce.” Fault matters — but it shares the stage with duration of marriage, contributions of each party, liquid versus nonliquid assets, debts, tax consequences, and more.
New York is notably restrictive on this point. The Appellate Division, Second Department has held that the divorce ground has “no bearing on the division of the parties’ assets and liabilities” except in rare cases involving what courts call “egregious fault” — conduct that genuinely shocks the conscience.
Here’s how this plays out. Say one spouse had an affair in Texas, and the couple has significant community assets. The court could award the other spouse a disproportionate share based on that misconduct. That’s meaningful — but nobody is walking away with everything because of infidelity. The same affair in California? The court cannot consider it at all. Equal division is the statutory default under California Family Code §2550.
A lot of people think filing on fault grounds means they get more in the property split. In most states, the impact is modest. In pure no-fault states, it’s nonexistent.
The Role of Fault in Child Custody Decisions
Short answer — marital fault almost never affects custody.
Every state determines custody based on the “best interest of the child” standard. That standard focuses on the child’s needs, not on which parent caused the marriage to end. Adultery, abandonment, financial misconduct between spouses — none of these are custody factors unless they directly affect the child’s safety or wellbeing.
The exception is domestic violence. Courts in virtually every state treat domestic violence as a significant custody factor, and many states create a presumption against custody for a parent with a domestic violence finding. But domestic violence is a risk-to-the-child issue, not a marital-fault issue — the analysis is fundamentally different.
Say one parent committed adultery and the other didn’t. That fact alone won’t move the custody needle in any state. Now say one parent has a documented history of domestic violence against the other parent or the child. That changes the entire calculus — not because of marital fault, but because of child safety.
The California Courts self-help guide explains that custody focuses on “the health, safety, and welfare of the child.” Virginia’s §20-124.3 lists best-interests factors centered on the child’s developmental needs. Neither includes general marital misconduct.
Defenses to a Fault Divorce: Condonation, Connivance, and More
Most people don’t know this — a spouse accused of fault can raise legal defenses.
Traditional fault defenses include condonation (the accusing spouse knew about and forgave the misconduct), connivance (the accusing spouse set up or facilitated the misconduct), recrimination (the accusing spouse committed the same or similar misconduct), collusion (both spouses fabricated the grounds), and provocation (the accusing spouse’s behavior caused the misconduct).
These defenses are a holdover from an era when divorce was adversarial by design. The UMDA specifically recommended abolishing all of them. Section 303(e) states that “previously existing defenses to divorce and legal separation, including but not limited to condonation, connivance, collusion, recrimination, insanity, and lapse of time, are abolished.”
States that adopted the UMDA framework — including Wisconsin, Colorado, and Washington — followed through. Wisconsin §767.317 explicitly abolishes all traditional fault defenses.
In states that still recognize fault grounds, these defenses remain available but are rarely litigated. They add complexity, cost, and time to proceedings that could otherwise resolve through a no-fault filing.
Covenant Marriage: Where Fault Grounds Are Still Required
Three states — Louisiana, Arizona, and Arkansas — offer something called covenant marriage, which creates a completely separate legal track where fault grounds are required to divorce.
Louisiana was first, passing covenant marriage legislation in 1997. Under Louisiana RS 9:272, couples who enter a covenant marriage agree that their marriage is “a lifelong relationship” and that it “may not be dissolved, rescinded, or otherwise terminated by the mutual consent of the spouses.” To divorce, they must prove adultery, felony conviction, abandonment, physical or sexual abuse, or live apart for two years.
Arizona presents the starkest contrast of any state. For standard marriages, Arizona is pure no-fault — “irretrievably broken” is the only ground under A.R.S. §25-312. But couples who entered a covenant marriage must prove specific fault grounds under §25-903 — adultery, felony conviction, abandonment, abuse, habitual substance abuse, two-year separation, or mutual agreement.
That means the same courthouse in Phoenix handles two fundamentally different legal systems depending on which type of marriage license a couple signed years earlier.
Arkansas follows a similar model. Its Covenant Marriage Act of 2001 (Ark. Code Ann. §9-11-801 et seq.) requires fault grounds or an 18-month separation for standard marriages and extends that to two years for covenant marriages.
In practice, very few couples choose covenant marriage. But these three states show that the fault-based system hasn’t disappeared — it’s been preserved as an opt-in alternative.
Can You Contest a No-Fault Divorce?
In most states, no. If one spouse says the marriage is irretrievably broken, the court will generally accept that and proceed.
There’s a common misconception that both spouses have to agree to end the marriage. That’s only true in one state — Mississippi — for irreconcilable differences specifically. Everywhere else, one spouse’s sworn statement is sufficient.
Some states build in a brief cooling-off mechanism. Florida allows a court to continue proceedings for up to three months to refer parties to counseling if the respondent denies the marriage is irretrievably broken — but the court proceeds regardless afterward under Florida Statutes §61.052. Wisconsin requires both parties to agree the marriage is broken, or proof that they’ve lived apart for 12 months.
But these are procedural speed bumps, not substantive barriers. No state other than Mississippi allows one spouse to permanently block a no-fault divorce simply by refusing to agree.
How This Works Differently by State
The table below maps how representative states handle the fault vs. no-fault distinction — including whether fault affects property division and spousal support.
| State | Divorce System | Does Fault Affect Alimony / Property? |
|---|---|---|
| California | Divorce SystemPure no-fault only | Does Fault Affect Alimony / Property?No — fault excluded from both by statute |
| Oregon | Divorce SystemPure no-fault only | Does Fault Affect Alimony / Property?No — strongest statutory prohibition in the U.S. |
| Florida | Divorce SystemPure no-fault only | Does Fault Affect Alimony / Property?Limited — adultery’s economic impact may factor into alimony |
| New York | Divorce SystemFault + no-fault | Does Fault Affect Alimony / Property?Rarely — only in cases of “egregious” fault |
| Texas | Divorce SystemFault + no-fault | Does Fault Affect Alimony / Property?Yes — fault is a factor in both property and maintenance |
| Virginia | Divorce SystemFault + no-fault | Does Fault Affect Alimony / Property?Yes — adultery is a statutory bar to spousal support |
| Georgia | Divorce SystemFault + no-fault (13 grounds) | Does Fault Affect Alimony / Property?Yes — adultery and desertion both bar alimony |
| South Carolina | Divorce SystemFault + no-fault | Does Fault Affect Alimony / Property?Yes — adultery bars alimony; fault factors into property |
Are No-Fault Divorce Laws Changing? Legislative Updates
The short answer — they’re still evolving. The trend over the past 50 years has moved decisively toward no-fault. But there’s recent movement in the opposite direction.
Illinois offered both fault and no-fault grounds for decades before eliminating all fault grounds effective January 1, 2016 through Public Act 99-90. New York — the last holdout — added its no-fault ground in 2010.
The most recent significant change involves New York’s separation-based divorce provisions. A temporary amendment under S8705A (L.2024) had reduced the separation periods in DRL §170(5) and §170(6) from one year to six months. That temporary provision expired on February 17, 2026. However, a new permanent §170(7) took effect simultaneously through S1261-A (enacted as L.2025, Chapter 673), establishing irretrievable breakdown for at least six months as a standalone ground. The practical result — the six-month path still exists, but now lives under a different subdivision.
Several state legislatures have introduced bills to restrict or eliminate no-fault divorce, though none have passed as of early 2026.
The IRS doesn’t care either way. Publication 504, covering divorced and separated individuals, makes zero distinction between fault and no-fault divorces for federal tax purposes. Filing status, alimony tax treatment (post-2018 alimony is neither deductible nor taxable), and property transfer rules all apply identically regardless of how the divorce was obtained.
Frequently Asked Questions
What is the difference between a no-fault and a fault divorce?
No-fault divorce requires only a statement that the marriage is broken. Fault divorce requires proof of specific misconduct — adultery, cruelty, abandonment, or other statutory grounds. The choice affects timeline, cost, and in some states, financial outcomes like alimony and property division.
Does it matter who files for divorce first?
Filing first gives procedural advantages — choosing the jurisdiction, controlling initial timing, and presenting your case first at trial. But it doesn’t determine substance. Courts evaluate financial and custody issues based on facts, not filing order.
Can a spouse stop a no-fault divorce?
In 49 states plus D.C., no. One spouse’s sworn statement that the marriage is broken is sufficient. Mississippi is the sole exception — irreconcilable differences requires mutual consent, forcing a contested spouse to either prove fault or wait two years.
Does adultery affect how much alimony you receive?
It depends entirely on the state. Virginia considers adultery as a factor in spousal support determinations and in severe cases can bar it entirely. Georgia and South Carolina have similar bars. Texas treats it as one factor. California, Oregon, and Colorado prohibit courts from considering it at all.
What are irreconcilable differences in a divorce?
California defines them as “substantial reasons for not continuing the marriage” that make it appear the marriage should end. Practically, it means one or both spouses believe the relationship cannot be repaired. No specific misconduct needs to be identified or proven.
What defenses can you raise against a fault divorce?
Traditional defenses include condonation (forgiveness), connivance (facilitating the misconduct), recrimination (both spouses committed fault), and collusion (fabricating grounds). Many states that adopted UMDA-based codes abolished these defenses entirely.
Does a no-fault divorce mean the cheating spouse gets half?
In pure no-fault states like California, yes — the court divides community property equally regardless of misconduct. In states like Texas and Virginia, courts may consider adultery when making property and support decisions, potentially awarding a disproportionate share to the other spouse.
Can you switch from a no-fault to a fault divorce after filing?
In states that offer both options, amending a petition to add or change grounds is generally permitted before final judgment. But switching to fault adds evidentiary requirements, increases cost, and extends the timeline.
