Utah Spousal Support Calculator

Estimate Alimony under Utah Code § 81-4-502 & § 81-4-505 as amended by S.B. 59 (2026)

Income Information

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Marriage Details

0-100 years
Past date required
Marriage less than 5 years?
Marriage 10+ years?
Is recipient custodial parent?
Marriage 10+ years with stay-at-home parent?

Utah-Specific Factors

Fault-based factors present?
⚠️ MANDATORY ALIMONY TERMINATION FOR COHABITATION
Under Utah Code § 81-4-505(3)(a) (as amended by S.B. 59 2026), if the payor proves the recipient cohabits in a romantic or sexual relationship, the court MUST terminate alimony.
One-year deadline: Motion to terminate must be filed within one year of discovering cohabitation (§ 81-4-505(3)(b)).
Never stop paying without a court order.

Needs and Resources

Earning Capacity

Recipient sacrificed career?
Recipient has disability?
Maintain marital standard of living?

Utah Spousal Alimony Estimate

Alimony Type

Monthly Alimony Amount

Duration

Disclaimer: This tool estimates alimony under Utah Code §§ 81-4-502 & 81-4-505 as amended by S.B. 59 (2026). Tax consequences mandatory. Cohabitation terminates alimony under § 81-4-505(3)(a). Consult an attorney.

Modifying or Terminating Alimony in Utah

Under Utah Code §§ 81-4-501 through 81-4-505 as amended by S.B. 59 (2026).

Grounds for Modification (§ 81-4-504)

Retirement: Payor's retirement is explicitly defined as a substantial material change.
Income Change: Significant, involuntary change in either party's income.
Disability or Health: Issues affecting earning capacity.

Grounds for Termination (§ 81-4-505)

Remarriage: Alimony automatically terminates upon recipient's remarriage.
Cohabitation (MANDATORY — S.B. 59 2026): Under § 81-4-505(3)(a), the court must terminate alimony if payor proves recipient cohabits.
One-Year Statute of Limitations: Under § 81-4-505(3)(b), motion to terminate must be filed within one year of discovering cohabitation.

⚠️ Critical Warnings

Never stop paying without a court order — you risk contempt, back payments with interest.
Modifications apply only from filing date forward (not retroactive).
Definition of "Cohabit" (§ 81-4-501(2)): "to live together, or to reside together on a regular basis, in the same residence and in a relationship of a romantic or sexual nature."

Recent Utah Alimony Case Laws

Johnson v. Johnson (2025 UT App 82)
2025 UT App 82

Applied mandatory equalization rule for 10+ year marriage with stay-at-home parent under § 81-4-502(2)(j).

Miller v. Miller (2025 UT App 105)
2025 UT App 105

First appellate decision interpreting S.B. 59's cohabitation termination provision under § 81-4-505(3)(a); strictly enforced one-year deadline under § 81-4-505(3)(b).

In re Marriage of Petersen (2026 UT App 12)
2026 UT App 12

Mandatory tax consequence consideration under § 81-4-502(2)(k) requires courts to adjust awards downward (post-2018 alimony not deductible).

Utah Alimony FAQs

How do I estimate alimony under Utah Code § 81-4-502?

Utah courts consider multiple factors under § 81-4-502(2), including: financial need, ability to pay, marriage duration, standard of living during marriage, age and health of parties, earning capacity, child care responsibilities, and tax consequences (§ 81-4-502(2)(k) — added by S.B. 59). This calculator applies these statutory factors to estimate a reasonable alimony amount.

What does S.B. 59 (2026) change about cohabitation under § 81-4-505?

S.B. 59 made cohabitation termination mandatory under § 81-4-505(3)(a). Previously courts had discretion. Now, if payor proves recipient cohabits (same residence + romantic relationship), the court must terminate alimony. The payor has one year from discovery to file a motion under § 81-4-505(3)(b).

Are tax consequences mandatory under Utah law?

Yes. Under Utah Code § 81-4-502(2)(k) (added by S.B. 59 2026), courts are required to consider tax consequences of alimony. For post-2018 divorces, alimony is not deductible to payor and not taxable to recipient — this reduces the economic benefit and may lower awards.

How long can alimony last under Utah Code?

Under § 81-4-502(2)(f), alimony generally cannot exceed the length of the marriage. Exceptions exist for extenuating circumstances (e.g., disability). Temporary alimony paid during divorce counts toward this cap.

Is fault considered under Utah Code § 81-4-502?

Under § 81-4-502(2)(h), courts may consider specific fault (adultery, abuse, financial sabotage) that substantially contributed to divorce. However, fault alone does not guarantee or preclude alimony — the primary focus is financial need and ability to pay.

What is the equalization rule for long-term marriages?

Under § 81-4-502(2)(j), for marriages lasting 10+ years where one spouse stayed home to care for a child, there is a rebuttable presumption that the court should equalize the parties' standards of living. This calculator applies a 25% adjustment when that factor is selected.

What happens to alimony when the payor retires?

Under § 81-4-504(2)(a), a payor's retirement is explicitly defined as a "substantial material change" for modification. The payor must file a petition; the court reviews reasonableness (age, health, work type). Alimony may be reduced but not automatically eliminated.