Cheating on your wife can be a literal crime in the United States, not just a moral failure. More than 20 states still have adultery laws on the books in 2026, and in some of them, the offense is classified as a misdemeanor or even a felony.
Most people assume infidelity is purely a personal matter with zero legal consequences. That assumption is wrong, and it catches people off guard when divorce, military service, or a civil lawsuit enters the picture.
This article covers which states criminalize adultery, what the actual penalties are, how cheating affects divorce and alimony, and the specific legal situations where infidelity carries the heaviest consequences.
Is It Illegal to Cheat on Your Wife
Yes, cheating on your wife is technically illegal in more than 20 US states as of 2026. These states have criminal adultery statutes that classify the act as a misdemeanor or, in rare cases, a felony.
That said, prosecutions are extremely rare. Most district attorneys treat these laws as relics that are never enforced in practice. The laws exist, but the chance of being arrested or charged purely for having an affair is close to zero in most states.
What matters more in real life is the indirect legal impact. Cheating can derail divorce settlements, eliminate your right to alimony, expose you to civil lawsuits in certain states, and end a military career under federal law.
The answer is not a simple yes or no. It depends on your state, your circumstances, and whether you are subject to military or federal law. The sections below break all of that down clearly.
Is It Against the Law to Cheat on Your Wife
It is against the law to cheat on your wife in roughly 20 to 23 states, where adultery statutes remain on the books. However, most of those laws are rarely if ever enforced by criminal prosecutors.
Think of it like jaywalking in a city where no officer has written a ticket in 40 years. The law technically exists. Technically, you could be charged. But the real-world probability is negligible in most places.
The states where enforcement has historically been more common include fault-divorce states in the South and parts of the Midwest. In those regions, adultery also carries significant weight in civil family court proceedings even when criminal charges never materialize.
Quick Facts:
- Over 20 states still have some form of criminal adultery law in 2026
- Most carry misdemeanor penalties
- A small number still technically classify adultery as a felony
- Actual criminal prosecutions for adultery alone are extremely rare nationwide
- Military personnel face stricter and actively enforced federal rules under UCMJ
Is Adultery Illegal in the US
Adultery is illegal at the state level in a significant portion of the United States, but it is not a federal crime for civilians. There is no single national law making infidelity illegal across all 50 states.
Each state sets its own rules. Some have decriminalized adultery entirely. Others retain statutes from the 1800s that were never formally repealed. A few states have updated or revisited their adultery laws within the last decade.
The constitutional enforceability of criminal adultery laws has been challenged, particularly after the Supreme Court’s 2003 ruling in Lawrence v. Texas, which struck down laws criminalizing private consensual sexual conduct. Many legal scholars argue that most state adultery laws could not survive a constitutional challenge today, which is another reason prosecutors don’t bother pursuing them.
For the average civilian, adultery is not a crime that will result in handcuffs. For a military member, the picture is completely different.
Adultery Definition in Law
In legal terms, adultery refers to voluntary sexual intercourse between a married person and someone other than their lawful spouse. That is the standard definition used in most state statutes and family law proceedings.
The legal definition is narrower than how most people use the word socially. In many states, the law requires actual sexual intercourse. Kissing, emotional affairs, or romantic texting typically do not meet the legal definition, even when they clearly constitute betrayal in a relationship.
Some states use slightly different language. Wisconsin’s statute, for example, has historically defined adultery as sexual intercourse by a married person with someone not their spouse, or sexual intercourse by an unmarried person with someone they know to be married. That framing catches both parties, not just the cheating spouse.
Key legal distinctions:
- Most states require proven sexual intercourse, not just emotional involvement
- Both the married person and the affair partner can potentially be charged in some state definitions
- Proof standards vary: some states require a confession, direct evidence, or strong circumstantial evidence
- Legal definitions in family court can be broader than in criminal court for the same state
What States Is Adultery Illegal In
Adultery remains a criminal offense in more than 20 states. Below is a breakdown of states with active adultery statutes and their classification of the offense.
| State | Statute | Classification |
|---|---|---|
| Michigan | MCL 750.29 | Felony (up to 4 years) |
| Wisconsin | Wis. Stat. 944.16 | Class I Felony |
| Idaho | Idaho Code 18-6601 | Felony |
| Massachusetts | MGL c.272 s.14 | Felony (up to 3 years) |
| Oklahoma | 21 O.S. 872 | Misdemeanor |
| Minnesota | Minn. Stat. 609.36 | Misdemeanor |
| Maryland | MD Criminal Law 10-501 | Misdemeanor |
| Florida | Fla. Stat. 798.01 | Misdemeanor (second degree) |
States where adultery has been decriminalized or statutes have been repealed include California, New York (criminally), Colorado, Ohio, and several others.
It is worth knowing that even in states where adultery is technically a felony, no modern prosecution for the offense alone has resulted in a prison sentence in recent memory. These classifications reflect the statute language, not current enforcement reality.
Adultery Laws by State 2026
Adultery laws by state in 2026 show a fragmented picture: some states have repealed their laws entirely, some retain outdated statutes that are never enforced, and a handful treat adultery as grounds for significant civil penalties in divorce.
The trend since 2000 has been toward decriminalization. Many states have quietly removed adultery from their criminal codes as part of broader penal code modernization efforts. However, the process is slow and inconsistent.
| State | Criminal Law Status | Divorce Impact |
|---|---|---|
| Michigan | Felony on books, unenforced | Can affect property division |
| North Carolina | Decriminalized; civil tort remains | Alienation of affection lawsuits allowed |
| Virginia | Class 4 misdemeanor | Bars alimony for cheating spouse |
| South Carolina | Criminal statute exists | Adultery bars alimony entirely |
| Illinois | Repealed in 2019 | No-fault only; no direct impact |
| California | No criminal law | No-fault; no divorce impact |
| New York | Decriminalized 2024 | No-fault; minimal divorce impact |
| Texas | Statute exists; rarely enforced | Can affect property division |
New York decriminalized adultery in 2024, making it one of the most recent states to remove infidelity from its criminal code. Illinois repealed its adultery law in 2019.
Key Takeaway: The legal status of adultery varies wildly from state to state in 2026. Where you live determines not just whether cheating is technically a crime, but how much financial damage it can cause in a divorce.
States That Still Have Criminal Adultery Laws
More than 20 states still have criminal adultery laws in 2026, though most of them are functionally dormant. The states most likely to have these laws are concentrated in the South, Midwest, and parts of New England.
States with active criminal adultery statutes include Michigan, Wisconsin, Idaho, Massachusetts, Oklahoma, Minnesota, Maryland, Florida, Georgia, Virginia, South Carolina, Utah, Arizona, North Dakota, Kansas, and several others. The list changes slightly as states periodically revise their penal codes.
The key question is not just whether the law exists, but whether it is categorized as a misdemeanor or felony. Michigan, Wisconsin, Massachusetts, and Idaho all technically classify adultery as a felony, which is surprising to most people who assume it would at most be a minor offense.
Why these laws still exist:
Most state legislatures have simply never gotten around to repealing them. Adultery statutes were common across all states through the 19th and early 20th centuries. Reform came unevenly, and in politically conservative states, repealing adultery laws can be a difficult vote for elected officials even when no one actually enforces the law.
Can You Go to Jail for Cheating on Your Spouse
You can technically go to jail for cheating on your spouse in states where adultery is classified as a felony or misdemeanor, but actual imprisonment for adultery alone is virtually unheard of in civilian courts in 2026.
The last widely documented civilian adultery prosecution in the US that resulted in a jail sentence occurred decades ago. Modern prosecutors do not pursue these cases. Courts have too many serious criminal matters to handle, and juries in most regions would find an adultery conviction politically uncomfortable.
The exception is military law. Under the UCMJ, adultery charges against service members have resulted in discharges, demotions, and in some documented cases, confinement. Military enforcement is real, active, and consequential.
Bottom line for civilians: The theoretical jail risk exists on paper. The practical risk in 2026 is negligible unless your conduct accompanies other crimes like fraud, theft of marital assets, or domestic violence. For military members, the risk is genuine and ongoing.
Adultery Criminal Charges
Adultery criminal charges in civilian courts are exceptionally rare, but they are not legally impossible. When charges do occur, they typically arise in one of a few specific situations.
Prosecutors have historically pursued adultery charges when the infidelity is connected to another crime, when it surfaces in an investigation for something else, or when a spouse files a formal complaint and local officials decide to act on it. The latter scenario is more common in small counties with conservative community norms.
Situations where adultery charges are more likely to surface:
- Combined with another criminal charge (fraud, bigamy, domestic abuse)
- Military contexts under UCMJ Article 134
- Small jurisdictions with locally elected prosecutors responding to constituent pressure
- Cases where adultery is used as a strategic legal argument in bitter divorce litigation
- Civil alienation of affection suits in North Carolina and a handful of other states
The charges themselves, when they occur in civilian courts, are almost always dismissed, result in a fine, or end in a plea agreement involving no jail time.
Adultery Penalties and Fines
Adultery penalties range from small fines to theoretical felony charges depending on the state, but real-world consequences are almost always limited to civil and financial harm rather than criminal punishment.
In states that classify adultery as a misdemeanor, the maximum fine is typically between $500 and $2,500. In states like Michigan, Wisconsin, Massachusetts, and Idaho where adultery is technically a felony, the theoretical sentence could be years in prison, though no modern court has applied such a sentence to a straightforward adultery case.
| State | Classification | Max Penalty (Statute) | Enforcement Reality |
|---|---|---|---|
| Michigan | Felony | Up to 4 years prison | Not enforced |
| Wisconsin | Class I Felony | Up to 3.5 years | Not enforced |
| Massachusetts | Felony | Up to 3 years | Not enforced |
| Idaho | Felony | Up to 3 years | Not enforced |
| Oklahoma | Misdemeanor | Up to $500 fine | Rarely enforced |
| Florida | Misdemeanor | Up to 60 days / $500 | Rarely enforced |
| Virginia | Class 4 Misdemeanor | Up to $250 fine | Occasionally cited in divorce |
| Maryland | Misdemeanor | Up to $10 fine | Historical relic |
Maryland’s statute sets a maximum fine of $10, which tells you everything you need to know about how seriously that state has ever treated enforcement.
Key Takeaway: Statutory penalties for adultery look alarming on paper in some states. In practice, the real financial penalties arrive in divorce court through alimony forfeiture, property division adjustments, and civil lawsuits.
How Does Cheating Affect Divorce Settlement
Cheating can significantly affect a divorce settlement in fault-based divorce states, where marital misconduct is a legal factor in dividing assets and awarding support. In no-fault states, the impact is minimal or nonexistent.
In fault states, a judge can consider adultery when deciding how to split marital property. That does not always mean a 50/50 split shifts dramatically, but it can mean the cheating spouse receives a smaller share of the marital estate or is ordered to pay more in legal fees.
The practical impact varies by state:
| State Type | Adultery Impact on Property Division |
|---|---|
| Fault divorce states (VA, SC, GA) | Can reduce cheating spouse’s share |
| No-fault only states (CA, CO, FL*) | No direct impact on property split |
| Mixed states (TX, NY) | Limited impact; judge has discretion |
*Florida has both fault and no-fault options.
One thing that does carry weight even in no-fault states is financial misconduct tied to the affair. If a spouse spent significant marital funds on an affair partner, gifts, trips, or hotels, a court can treat that as dissipation of marital assets. The cheating itself may not matter. The money spent on it absolutely does.
Does Cheating Affect Alimony
Cheating has a direct and sometimes severe effect on alimony in several states. In some states, adultery by the spouse requesting alimony can disqualify them from receiving it entirely.
This is one of the most financially consequential areas of infidelity law. Virginia, South Carolina, Georgia, and North Carolina all have provisions that can bar alimony for a spouse who committed adultery. In South Carolina, adultery is an absolute bar to alimony if it is proven before the final judgment.
| State | Adultery Effect on Alimony |
|---|---|
| South Carolina | Absolute bar to alimony if proven |
| Virginia | Strong bar; judge has limited discretion |
| Georgia | Can reduce or eliminate alimony award |
| North Carolina | Misconduct is a factor; can bar alimony |
| Texas | Judge can consider fault; not automatic bar |
| California | No direct impact; no-fault state |
| New York | Rarely impacts alimony since 2010 reform |
The direction matters too. If the higher-earning spouse committed adultery, that could actually increase the alimony they are ordered to pay, depending on the state. The law cuts both ways.
Key Takeaway: If you live in a fault-divorce state and you are the one asking for alimony, adultery by you could cost you everything. This is the single biggest real-world legal consequence of cheating for most civilians.
Fault vs No-Fault Divorce and Adultery
Fault vs no-fault divorce is the single most important legal framework for understanding how adultery affects your divorce. In no-fault states, the reason for divorce does not matter. In fault states, it matters a great deal.
All 50 states now offer no-fault divorce, meaning either spouse can file for divorce without proving wrongdoing. You can simply cite “irreconcilable differences” and move forward. About half the states also allow fault-based divorce, where one spouse can cite adultery as the official grounds.
Why it matters to file fault-based:
Filing on adultery grounds gives the innocent spouse legal leverage. It can influence property division, alimony decisions, and sometimes attorney’s fee awards. The catch is that proving adultery requires actual evidence, which prolongs the process and increases legal costs.
In states like Virginia, filing on adultery grounds can be a powerful financial tool for the wronged spouse. In California, filing on adultery grounds is not an option because the state only recognizes no-fault divorce.
Cheating Spouse Civil Lawsuit
A cheating spouse can face a civil lawsuit in states that recognize the torts of alienation of affection and criminal conversation. These are not criminal charges. They are civil claims that allow a wronged spouse to sue the affair partner for money damages.
North Carolina is the most active state for these lawsuits in 2026. Alienation of affection claims there have resulted in jury verdicts in the hundreds of thousands of dollars, and occasionally in the millions. The claims target the affair partner, not the cheating spouse directly.
States where alienation of affection or criminal conversation still exist:
| State | Tort Available | Notes |
|---|---|---|
| North Carolina | Yes, both | Actively litigated; large verdicts |
| Mississippi | Yes | Rarely pursued but legally available |
| South Dakota | Yes | Available but infrequent |
| Utah | Yes | Available in theory |
| Hawaii | Alienation only | Limited scope |
| Illinois | Abolished | Repealed 1962 |
| California | Abolished | Long repealed |
Criminal conversation, despite its name, has nothing to do with talking. It means the affair partner had sexual intercourse with a married person. It is a civil tort, and it does not require proving emotional harm. The act itself is sufficient grounds for the lawsuit in states where it still exists.
Adultery and Military Law UCMJ
Adultery under military law is treated completely differently from civilian law, and this is the one context where enforcement is real, active, and career-ending. UCMJ Article 134 covers adultery as a criminal offense for active duty service members.
Under the military’s Manual for Courts-Martial, adultery is specifically listed as conduct prejudicial to good order and discipline. A service member can face a court-martial, reduction in rank, forfeiture of pay, a punitive discharge (including dishonorable discharge), and up to one year of confinement.
UCMJ adultery elements prosecutors must prove:
- The accused engaged in sexual intercourse with someone other than their spouse
- At the time, either the accused or the other person was married
- The conduct was prejudicial to good order and discipline, or was of a nature to bring discredit on the armed forces
The third element gives commanders discretion. That is why not every military infidelity case becomes a court-martial. But when the adultery involves superior-subordinate relationships, public exposure, or a pattern of behavior, prosecution becomes far more likely.
Officers face a higher standard. An officer’s affair is more likely to trigger formal proceedings than an enlisted member’s, particularly when rank dynamics are involved.
Key Takeaway: For military members, cheating on your spouse is not a dormant legal relic. It is a live federal offense with real consequences including loss of career, pension, and freedom. The civilian rules do not apply.
Is Emotional Cheating Illegal
Emotional cheating is not illegal anywhere in the United States. No state criminal statute or federal law classifies emotional affairs, romantic texting, or non-physical infidelity as a crime.
The legal definition of adultery in every state that has one requires sexual intercourse. Falling in love with someone else, maintaining a secret romantic relationship, or sending intimate messages does not meet that legal threshold, no matter how much emotional damage it causes.
In family court, however, emotional affairs can still be relevant in limited ways. A judge may consider the emotional relationship as context for a pattern of marital misconduct. It can inform credibility, demonstrate intent, or support a claim that marital funds were diverted to the affair partner even before physical intimacy occurred.
In North Carolina’s alienation of affection tort, emotional involvement that damaged the marriage can actually be part of the claim. You do not need to prove sex occurred. You need to prove the third party’s conduct alienated the affection of your spouse. That can include purely emotional conduct.
So while emotional cheating carries no criminal consequence, it is not entirely without legal relevance in civil proceedings.
Common Misconceptions About Cheating Laws
The biggest misconception about cheating laws is that infidelity is either completely legal or will definitely land you in jail. Both extremes are wrong, and most people fall somewhere in between without understanding the actual legal picture.
Misconception 1: “Cheating is legal everywhere in the US.”
False. More than 20 states retain criminal adultery statutes in 2026. The conduct is technically illegal in those states.
Misconception 2: “You can be arrested and jailed just for having an affair.”
Extremely unlikely for civilians in 2026. Criminal prosecution for adultery alone is essentially extinct in civilian courts. Military members are the major exception.
Misconception 3: “Cheating doesn’t affect your divorce at all.”
Wrong in fault-based states. Adultery can cost a cheating spouse their alimony rights, a portion of marital assets, and in some states, open them to civil lawsuits from the affair partner’s spouse.
Misconception 4: “Emotional affairs are legally the same as physical ones.”
False. Criminal adultery statutes require sexual intercourse. Emotional affairs carry no criminal penalty, though they can have limited civil relevance.
Misconception 5: “The affair partner has no legal liability.”
Wrong in states with alienation of affection and criminal conversation torts. North Carolina juries have awarded multimillion-dollar verdicts against affair partners.
Understanding what the law actually says rather than what people assume it says can make a significant difference, especially when a marriage is breaking down and legal decisions need to be made quickly.
Frequently Asked Questions
Is it illegal to cheat on your wife in all 50 states?
No, cheating on your wife is not illegal in all 50 states.
Roughly 20 to 23 states have criminal adultery statutes in 2026, while others have fully decriminalized infidelity.
In states without those laws, cheating carries no criminal consequence at all, though it can still affect divorce proceedings.
Can you actually be arrested for cheating on your spouse in 2026?
A civilian can be arrested in a state with a criminal adultery statute, but actual arrests and prosecutions for adultery alone are extremely rare in 2026.
Military members face a very different situation under UCMJ Article 134, where enforcement is real and ongoing.
For most civilians, the legal risk shows up in divorce court, not in handcuffs.
Does cheating affect who gets the house in a divorce?
In fault-based divorce states, adultery can influence property division and reduce the cheating spouse’s share of marital assets.
In no-fault states like California, the reason for divorce does not factor into property division.
Spending marital money on an affair partner, regardless of state, can be treated as dissipation of assets and penalized by a judge.
Can a cheating spouse lose their right to alimony?
Yes, in several states, adultery by the spouse requesting alimony can disqualify them from receiving it.
South Carolina applies an absolute bar to alimony if adultery is proven before the final divorce judgment.
Virginia, Georgia, and North Carolina also treat adultery as a major factor that can reduce or eliminate an alimony award.
Is the affair partner legally liable for anything?
In states that recognize alienation of affection or criminal conversation torts, an affair partner can be sued for civil damages.
North Carolina is the most active state for these lawsuits, with verdicts sometimes reaching into the hundreds of thousands or millions of dollars.
These are civil claims, not criminal charges, and they target the affair partner directly.
The legal reality of cheating on your wife in 2026 is more complicated than most people realize. It is not a universal crime, but it is also not without consequences, especially in fault-divorce states, in military service, and in states that still allow civil lawsuits against affair partners.
Bookmark this article if you are navigating a difficult marriage situation or want a clear reference for how infidelity laws actually work across the US. The details here can shift the outcome of a divorce significantly depending on where you live.
