There is no alimony calculator in Utah. Not an official one, not a reliable unofficial one. If you have found a website promising to tell you the number, close it. The amount and length of alimony in Utah are set by a judge applying a list of factors from the Utah Code to the specific facts of your marriage, and two judges looking at the same facts can land in different places. What we can do is explain exactly what the judge is required to look at, what the law says about how long alimony can last, and what actually moves the outcome in the cases we handle.
The short answer
Alimony in Utah is meant to do one thing: keep the lower-earning spouse from falling off a cliff after the divorce, for a limited time, to the extent the higher-earning spouse can afford it. The court starts with the standard of living the two of you had during the marriage and asks three questions in order. What does the receiving spouse reasonably need? What can that spouse earn on their own? What can the paying spouse afford after covering their own reasonable needs? Alimony is whatever is left after those three questions are answered, and it can be zero.
The factors the judge must consider
Utah’s alimony statute, Utah Code 81-4-502, lists the factors a court must weigh. In plain terms they are:
The financial condition and needs of the spouse asking for alimony, including debts and the cost of housing, insurance, and childcare.
That spouse’s earning capacity, meaning what they could realistically earn, not only what they earn today. A spouse who left the workforce for fifteen years is judged differently from one who took a two-year break.
The paying spouse’s ability to pay, after their own reasonable expenses.
The length of the marriage. Short marriages produce short or no alimony. Long marriages produce longer awards.
Whether the receiving spouse has custody of minor children and what that does to their ability to work.
Whether the receiving spouse worked in a business owned by the other spouse.
Whether the receiving spouse contributed to the other spouse’s education or career, for example by supporting the family while the other spouse finished a degree.
The court also looks at the standard of living at the time you separated. The goal is not to make both households identical, but in longer marriages the court tries to avoid a situation where one spouse keeps the lifestyle and the other loses it entirely.
The 2024 rule for long marriages
For divorces filed on or after May 1, 2024, Utah added a presumption that matters a great deal in traditional marriages. If the marriage lasted ten years or more, and one spouse reduced their work experience by mutual agreement to care for the children, the court is now required to presume that the two households’ standards of living should be equalized. The paying spouse can rebut that presumption, but only with good cause and specific findings from the judge. If you were the stay-at-home parent in a long marriage, this rule is the single most important change to Utah alimony law in a generation. If you were the earner, it means the old assumption that the court will only cover “needs” no longer holds.
How long alimony lasts
The general rule is that alimony cannot last longer than the marriage did. A twelve-year marriage cannot produce fifteen years of alimony. The court can go past the length of the marriage only if it finds extenuating circumstances, and it must make that finding before the alimony term ends. Temporary alimony paid while the divorce is pending counts toward the total.
Within that ceiling, judges have wide discretion. It is common to see alimony ordered for a period long enough for the receiving spouse to get training or re-enter the workforce, rather than for the full length of the marriage.
What ends alimony early
Alimony in Utah ends automatically when the receiving spouse remarries or dies. It also ends if the receiving spouse cohabits with a new partner, and Utah’s cohabitation rule is specific: the paying spouse has to bring the issue to the court within a year of learning about the cohabitation. A new relationship that does not involve living together as a couple generally does not end alimony.
Does fault matter?
Yes, and this surprises people who have heard that Utah is a no-fault state. The court may consider fault when deciding whether to award alimony and on what terms. Fault in this context means serious misconduct that substantially contributed to the breakdown of the marriage, such as adultery, physical abuse, or knowingly and intentionally causing substantial harm to the other spouse. Fault does not automatically increase or decrease alimony, and raising it turns the case into a fight about conduct that can cost more than it recovers. Whether to raise fault is a strategy decision to make with your attorney, not something to decide on your own.
Can alimony be changed later?
Alimony can be modified if there is a substantial material change in circumstances that was not foreseeable at the time of the divorce. A job loss that was not the paying spouse’s choice can qualify. Quitting a job to reduce alimony does not; the court will impute income. Retirement, disability, and a large change in either spouse’s income are the most common reasons we see for modification. The decree itself can also make alimony non-modifiable if both spouses agree to that.
What actually moves the number
After years of alimony cases, a few things reliably matter more than clients expect. Documentation of real monthly expenses, not estimates. A credible plan for how the receiving spouse will become self-supporting, and on what timeline. Evidence of what the receiving spouse could earn now, which is often the fight the whole case turns on. And the temporary orders entered early in the case, which tend to anchor the final outcome more than they should.
The things that matter less than clients expect are who filed, who “wanted” the divorce, and who behaved badly in ways that fall short of legal fault.
Can we agree on alimony ourselves?
Yes, and most Utah divorces resolve alimony by agreement, often in mediation, which the court requires before a contested divorce can go to trial. Spouses frequently trade alimony for something else, such as a larger share of retirement or the house. Agreements the court approves are enforceable, and they can be written to be non-modifiable, which gives both sides certainty a judge’s order never will.
Talk to us before you assume
If you are worried about paying alimony, or worried about living without it, the worst thing you can do is guess. Bring your income information and a rough monthly budget to a consultation and we will tell you where a Utah court is likely to land on your facts, and where the room to negotiate is.
This article is general information about Utah law, not legal advice for your situation. Alimony outcomes depend on facts specific to your marriage.

