How Adultery and Fault Impact Alimony Awards in Utah Courts

Current as of: October 12, 2026 Alimony & Spousal Support Utah
In Utah, marital fault-such as adultery or physical abuse-directly affects alimony. Under Utah law, a judge can completely deny alimony to a cheating spouse or significantly increase the payments if the paying spouse was at fault.

The Role of Fault in Utah Alimony Cases

Divorce is an incredibly emotional process, and when infidelity or abuse is the cause of the split, it feels entirely unfair to be penalized financially. Unlike many 'no-fault' states where bad behavior is ignored in financial settlements, Utah law actively punishes marital misconduct when deciding spousal support. If a marriage ends because one spouse cheated, became physically abusive, or severely undermined the financial stability of the family, the court takes notice. By understanding how fault is applied, you can better protect your financial future. If you are dealing with a high-conflict divorce involving infidelity, we strongly suggest you find a local attorney in our USA Lawyer Catalog to protect your rights.

Step-by-Step Process in Utah

Step 1: Understanding Fault Under Utah Law

The state officially defines what constitutes 'fault' when determining spousal support under Utah Code § 81-4-501(3) and Utah Code § 81-4-502(2). The statute explicitly states that a court may consider the fault of the parties in determining whether to award alimony and the terms of the alimony. The law specifically defines fault as engaging in sexual relations with a person other than the party's spouse, knowingly causing or attempting to cause physical harm to the spouse or children, or substantially undermining the financial stability of the other party. If a judge at the Third District Court, Salt Lake City finds that the spouse requesting alimony committed adultery, the judge can legally deny their request entirely, regardless of their financial need.

Step 2: Highlighting Financial Dissipation on Affair Partners

Adultery is not just a betrayal of trust; it is often a theft of marital funds. When proving fault, an excellent strategy is to show financial dissipation. This means proving that your spouse wasted marital money on their affair partner. You can subpoena credit card statements, bank records, and hotel receipts to show money spent on vacations, dinners, and gifts. This financial waste is a powerful argument to present at the Fifth District Court, St. George to either reduce the amount of alimony you have to pay or demand a higher share of the marital assets in return.

Step 3: Emotional vs. Physical Infidelity

In the digital age, many affairs happen entirely over text messages or social media. However, Utah law is specific. An 'emotional affair' where two people share intimate feelings but never engage in physical sexual contact generally does not meet the strict statutory definition of adultery under Utah alimony laws. To effectively use infidelity as a weapon to stop alimony, you must have evidence of physical sexual relations, a standard clarified in cases like Gardner v. Gardner, 452 P.3d 1134 (UT Supreme Court 2019). That said, if an emotional affair led to substantial financial waste, it can still be used under the 'undermining financial stability' clause.

Step 4: Defending Against False Adultery Accusations

Because adultery carries such harsh financial penalties in Utah, angry spouses sometimes make false accusations to get out of paying alimony. If you are falsely accused, you must mount an aggressive defense. Demand absolute proof. A simple suspicion or a friendly text message is not enough to prove fault in court. The burden of proof lies with the person making the accusation. Your lawyer can file motions to suppress hearsay and demand concrete evidence like photographs, admissions, or private investigator logs.

Step 5: Filing the Financial Declaration

Whether you are using fault to increase your alimony or to defend against paying it, both spouses must complete an official Financial Declaration pursuant to Utah R. Civ. P. 26.1. This mandatory disclosure document is required in every Utah divorce involving support, accompanied by supporting tax returns, pay stubs, and account statements. Be completely honest about your income, expenses, and assets. Hiding money on this form while accusing your spouse of financial dissipation will destroy your credibility before the judge.

How Much Does it Cost in Utah?

Litigating a fault-based divorce is generally more expensive than a standard no-fault divorce because it requires gathering complex evidence and conducting depositions.

Private Investigator (to prove adultery)$1,500 to $3,500
Subpoenas for Bank Records$100 to $300
Attorney Retainer for Contested Divorce$5,000 to $10,000+
Deposition Costs (Court Reporter)$500 to $1,000 per session

How Long Does the Process Take?

Because proving fault requires formal discovery, subpoenas, depositions, and often a full trial, these cases take significantly longer. A standard uncontested divorce in Utah can be finalized in 90 days, but a highly contested fault-based alimony battle can take 9 to 18 months to resolve.

Will adultery completely cancel my obligation to pay alimony?

It is very possible. Under Utah law, if the spouse requesting alimony is proven to have committed adultery, the judge has the discretion to deny alimony entirely, though they will still evaluate the overall financial situation.

Can emotional affairs affect my alimony case?

Generally, an emotional affair does not meet the strict legal definition of adultery required to deny alimony unless marital money was significantly wasted during the relationship.

What is considered 'undermining financial stability'?

This occurs when a spouse intentionally racks up massive credit card debt, gambles away marital savings, or liquidates retirement accounts without the other spouse's knowledge.

Do I have to prove fault to get a divorce in Utah?

No. Utah allows for 'no-fault' divorces based on irreconcilable differences. You only need to prove fault if you are trying to influence the judge's decision on alimony or property division.

Can physical abuse impact an alimony award?

Yes. Causing or attempting to cause physical harm to a spouse or minor child is heavily weighted as fault under Utah Code, and a judge can award higher alimony to the victim or deny alimony to the abuser.


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