Utah does not use the term “common law marriage,” but Utah law recognizes something functionally identical called an unsolemnized marriage. Under Utah Code 81-2-408, a couple who meets five specific requirements can petition a court to declare their relationship a valid marriage, even without a ceremony, officiant, or license.1Utah Legislature. Utah Code 81-2-408 – Validity of Marriage Not Solemnized or Solemnized Before an Unauthorized Individual Once a judge signs the order, the relationship carries every right and duty of a ceremonial marriage, including the need for a formal divorce to end it.
The Five Requirements You Have to Meet
All five conditions must be satisfied at the same time. Missing one is enough for a court to deny the petition.
- Both partners are of legal age and mentally capable of consenting. That means 18 or older, or 16 to 17 with parental consent and juvenile court approval.2State of Utah Judiciary. Marriage Licenses
- Both partners are legally eligible to marry. Neither can already be married to someone else, and Utah bars marriages between close relatives, including siblings, parents and children, aunts or uncles with nieces or nephews, and most first cousins.3Utah Legislature. Utah Code Title 81 Chapter 2 Part 4 – Validity of Marriage
- The couple lives together. There is no minimum length of cohabitation in the statute, but you need to be living as partners, not roommates.1Utah Legislature. Utah Code 81-2-408 – Validity of Marriage Not Solemnized or Solemnized Before an Unauthorized Individual
- Both partners take on marital rights, duties, and obligations toward each other. Sharing finances, making joint decisions, and caring for one another the way spouses do.
- The couple holds itself out as married and is generally regarded as married in the community.1Utah Legislature. Utah Code 81-2-408 – Validity of Marriage Not Solemnized or Solemnized Before an Unauthorized Individual
The last requirement gets the closest scrutiny. Courts look for consistent public conduct: introducing each other as spouses, sharing a last name, listing each other as a spouse on employment or insurance forms. A private understanding between the two of you is not enough. Other people have to see the marriage too.
Evidence That Proves the Relationship
The statute lets you present evidence in any form, and the court weighs it under the usual civil rules.4Utah Legislature. Utah Code Section 81-2-408 The stronger the paper trail, the easier the hearing.
Financial documents carry a lot of weight. Joint bank and credit card accounts, tax returns filed as married (jointly or separately), and insurance policies naming your partner as a spouse all show shared economic life.5State of Utah Judiciary. Judicial Recognition of a Relationship as a Marriage Wills, powers of attorney, and healthcare directives that identify the other person as a spouse show written intent. Leases and deeds that describe the two of you as married help as well. Smaller items count too: holiday cards signed as a family, social media that lists a married status.
Witness testimony fills in the community-reputation piece. Friends, relatives, neighbors, and coworkers who have watched the two of you live as spouses can submit written affidavits or testify at the hearing. Useful statements describe how long the witness has known you, how you presented the relationship, and whether people treated you as married.
How to File the Petition
You file the petition with the clerk of the district court in the county where you live. Forms are available through the district court clerk and on the Utah Courts self-help website. The filing fee for an original district court petition is $375, and a fee waiver is available for petitioners whose income falls below set thresholds.6State of Utah Judiciary. Filing/Record Fees7State of Utah Judiciary. Fees and Fee Waiver
Once filed, the court sets a hearing. The judge reviews your documents, hears from you and your witnesses, and decides whether all five requirements are met. If they are, the court issues an order recognizing the marriage. That order is declaratory, so the marriage is treated as having existed from the point when the five conditions were first satisfied, not just from the date of the hearing. The retroactive effect can matter for property acquired during the relationship and for inheritance.
The statute also allows recognition through an administrative order rather than a court petition, but it does not name which agency handles that route, and the court path is the one that is actually used and documented.1Utah Legislature. Utah Code 81-2-408 – Validity of Marriage Not Solemnized or Solemnized Before an Unauthorized Individual
The One-Year Deadline After a Breakup
Timing is strict. You must file either while the relationship is ongoing or within one year after it ends.1Utah Legislature. Utah Code 81-2-408 – Validity of Marriage Not Solemnized or Solemnized Before an Unauthorized Individual Miss that window and you lose the ability to have the marriage recognized, along with any claim to property division, spousal support, or inheritance that recognition would have given you.
The statute contains no exceptions. Illness, not knowing the law, or ongoing settlement talks with an ex-partner do not extend the deadline. If you think your relationship qualifies and it has ended, file quickly.
What Recognition Actually Gives You
A recognized unsolemnized marriage has the same legal standing as any ceremonial marriage in Utah. That cuts both ways.
Property, Support, and Inheritance
Both spouses gain rights to an equitable division of marital property if the relationship ends and eligibility for alimony. A surviving spouse also inherits under Utah law, including an intestate share of the deceased spouse’s estate when there is no will.
Paternity of Children Born During the Relationship
A man is presumed to be the father of any child born during a recognized marriage, and that presumption can only be rebutted through specific legal proceedings.8Utah Legislature. Utah Code 78B-15-204 – Presumption of Paternity Because the court’s order can establish the marriage retroactively, this presumption can reach children born during the relationship before the petition was filed.
You Cannot Walk Away Without a Divorce
This surprises people. Once your unsolemnized marriage is recognized, ending it requires a formal divorce in court, the same as any other married couple. Until the divorce is final, you remain legally married, cannot marry someone else, and may still owe financial obligations to your spouse.
Federal Recognition
The IRS treats a state-recognized unsolemnized marriage as a marriage for tax purposes. If you are recognized as married on the last day of the tax year, you must file as either Married Filing Jointly or Married Filing Separately, not Single.9Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information The Social Security Administration also honors an unsolemnized marriage that is valid under state law for spousal and survivor benefits, and SSA looks to Utah’s five-factor test to decide.10Social Security Administration. Common-Law Marriage — General A certified copy of the court order makes the SSA process much simpler than trying to reprove the marriage from scratch.
Moving Out of State
If you leave Utah, other states generally recognize the marriage under the Full Faith and Credit Clause, even states that do not permit residents to form new common law or unsolemnized marriages inside their own borders. The court order is your proof that the marriage was validly formed in Utah.