Infidelity usually does not stop alimony by itself
In most U.S. states, your spouse's infidelity does not automatically reduce or eliminate alimony. Courts treat marital misconduct — including cheating — separately from financial support. Even if your spouse had an affair, a judge will still look at the factors that determine alimony: how long you were married, each person's income, age, health, and ability to support themselves.
A handful of states do consider infidelity when setting alimony, but even in those places, cheating is only one factor among many. It does not automatically erase the obligation. The state where you divorced matters enormously, because alimony law is set by state statute, not federal law.
Key Takeaways
- Most states treat infidelity and alimony as separate issues, so your spouse's affair will not change what a judge orders you to pay.
- A few states — including North Carolina, South Carolina, and New Hampshire — do allow judges to consider infidelity when deciding alimony amounts, but it is one factor, not a deciding one.
- Infidelity may matter more in property division (who gets the house, savings, retirement accounts) than in alimony decisions.
- The state where you divorced determines whether infidelity has any legal weight, so you need to know your state's specific rules.
Which states consider infidelity in alimony decisions
North Carolina, South Carolina, and New Hampshire are the clearest examples of states where a judge can consider infidelity when setting alimony. In these states, an affair may reduce the amount you owe or shorten how long you have to pay. However, even in these states, infidelity is not a reason by itself — the judge still weighs income, length of marriage, and other factors.
Some other states allow judges to consider "marital misconduct" in a broader sense, which can include infidelity, but the weight given to it varies. A few states have moved away from considering infidelity at all, treating it as irrelevant to financial support. Your state's specific statute determines whether the judge can even look at it.
Why most states ignore infidelity in alimony cases
Many states follow what is called a "no-fault" approach to divorce and alimony. Under this model, the reason the marriage ended does not affect who pays support or how much. The logic is that alimony is about financial need and ability to pay, not punishment. Your spouse's infidelity does not change their income or your obligation to support them if they cannot support themselves.
Courts also want to avoid turning alimony hearings into trials about who did what wrong in the marriage. Focusing on financial facts — paystubs, assets, living expenses — is faster and more predictable than relitigating the emotional details of an affair. This approach also prevents people from using alimony disputes as a way to punish an unfaithful spouse.
How infidelity might affect property division instead
Even in states where infidelity does not touch alimony, it can matter in dividing marital property — the house, retirement accounts, savings, and other assets. Some states allow judges to consider infidelity when deciding how to split these assets, especially if money from marital funds was spent on an affair.
For example, if your spouse spent $50,000 of joint savings on a romantic trip with someone else, a judge in some states might award you a larger share of the remaining assets to offset that loss. This is different from alimony, but it can have a real financial impact on the divorce settlement.
What you need to know about your state's rules
The only way to know whether infidelity matters in your case is to look at your state's alimony statute or talk to a family law attorney in your state. Divorce law varies significantly, and what is true in one state is not true in another. A few minutes with a local attorney can tell you whether your spouse's affair has any legal weight in your situation.
If you are in a state where infidelity does matter, you will need to prove it — text messages, emails, credit card statements, or witness testimony. straightforward saying your spouse cheated is not enough. The burden of proof is on you, and the judge will decide how much weight to give the evidence.
What happens if you stop paying alimony because of infidelity
Stopping alimony payments on your own because your spouse cheated is risky, even if you believe infidelity should matter. If your state does not consider infidelity in alimony, a judge will see you as straightforward refusing to pay a court order. This can result in contempt of court charges, wage garnishment, or other enforcement actions.
The correct approach is to file a motion to modify alimony in court, asking the judge to reduce or end your payments based on changed circumstances or, if your state allows it, based on infidelity. This gives you a legal path to challenge the alimony order rather than breaking it unilaterally.
Frequently Asked Questions
If my spouse cheated, can I stop paying alimony right now?
No — stopping payments on your own is a violation of the court order, even if you think infidelity should matter. You must file a motion to modify alimony in court and let the judge decide. Until the court changes the order, you remain obligated to pay.
Does infidelity matter more if my spouse's affair caused the divorce?
Not in most states. Even if the affair directly caused the marriage to end, courts in no-fault divorce states treat that as separate from alimony. The judge will focus on income and need, not on who caused the split. A few states do consider it, but it is still only one factor.
Can I use my spouse's infidelity to reduce alimony in any state?
Yes, in North Carolina, South Carolina, and New Hampshire, judges can consider infidelity when setting or modifying alimony. In a few other states, it may be considered as part of "marital misconduct." But you will need to prove the affair and show the judge evidence.
What if my spouse spent marital money on their affair?
That spending may affect property division even in states where infidelity does not touch alimony. If joint funds were used for an affair, you can ask the judge to award you a larger share of remaining assets to offset the loss. This is a separate issue from alimony.
Should I hire a lawyer to argue that infidelity should reduce my alimony?
Yes, if you want to modify an alimony order. A family law attorney in your state knows whether infidelity has any legal weight where you live and can tell you whether it is worth pursuing. They can also file the motion correctly and present evidence to the judge.