Common law marriage in Kentucky is not a thing you can create. Under KRS 402.020, any marriage “not solemnized or contracted in the presence of an authorized person” is void from the start.1Kentucky Legislative Research Commission. Kentucky Revised Statutes 402.020 – Other Prohibited Marriages Years of living together, joint tax returns, shared last names, calling each other husband and wife in public — none of it makes you legally married in Kentucky. The state requires a marriage license from a county clerk and a ceremony performed by an authorized officiant, and it has required both since at least 1852.
The Kentucky Court of Appeals said it directly in Pendleton v. Pendleton: “In this state there is no such thing as a common-law marriage. What might be a common-law marriage somewhere else is no marriage at all here.”2Justia Law. Pendleton v. Pendleton, 531 S.W.2d 507 That has been the rule for half a century, and nothing about how a couple behaves changes it.
Common Law Marriages From Other States
Kentucky will recognize a common law marriage that was validly formed in a state that allows one. This works through interstate comity, the tradition that states honor marriages valid where they were created. If your relationship met every requirement of the state where you established it, Kentucky treats you as married with all the usual rights.3Kentucky Law Journal. The Validity of the Common-Law Marriage When Entered Into in Kentucky, or When Entered Into in Another State
Only a small group of states currently allow new common law marriages to form. Colorado, Iowa, Kansas, Montana, South Carolina, Texas, and Utah recognize them by statute. Rhode Island and Oklahoma recognize them through case law. New Hampshire recognizes cohabiting couples as married only after three years and only when one partner dies.4National Conference of State Legislatures. Common Law Marriage by State If you never lived in one of these states during the relationship, Kentucky has nothing to recognize.
When a Kentucky court is asked to decide whether an out-of-state common law marriage is valid, it applies the law of the state where the marriage formed. You need proof you met that state’s standard. Kentucky courts have accepted evidence of cohabitation and reputation in the community when no license or certificate exists.3Kentucky Law Journal. The Validity of the Common-Law Marriage When Entered Into in Kentucky, or When Entered Into in Another State Joint bank accounts, shared property deeds, insurance policies naming each other as spouse, and jointly filed tax returns all help.
Federal Recognition Still Applies
Even though Kentucky won’t create a common law marriage inside its borders, federal agencies honor one that another state has already recognized. That matters in three places most couples run into.
Federal Taxes
The IRS has held since 1958 that a couple with a valid common law marriage from a recognizing state may file jointly, even after moving to a state that requires a ceremony. Revenue Ruling 58-66 set the rule, and Revenue Ruling 2013-17 reaffirmed it: a marriage valid where entered is valid for federal tax purposes regardless of the current state of residence.5Internal Revenue Service. Revenue Ruling 2013-17 A Texas common law marriage still lets you file a joint federal return after you move to Louisville.
Social Security
Social Security recognizes common law marriages for spousal and survivor benefits, but the evidence requirements are specific. If both spouses are living, each must submit a statement along with a statement from a blood relative of each spouse. If one spouse has died, the survivor needs a statement plus statements from two blood relatives of the deceased. The agency also asks for corroborating documents like mortgage receipts, bank records, and insurance policies.6Social Security Administration. Evidence of Common-Law Marriage Gathering this proof before a partner dies is far easier than reconstructing it afterward.
Family and Medical Leave
The FMLA defines “spouse” to include a husband or wife “as defined or recognized in the State where the individual was married,” which covers common law marriages.7U.S. Department of Labor. Family and Medical Leave Act Advisor – Definition of a Qualifying Family Member A Kentucky resident with a valid out-of-state common law marriage can take FMLA leave to care for their partner.
What Unmarried Partners Lose
Kentucky’s refusal to recognize informal marriages has real consequences. Married couples get a bundle of automatic rights. Unmarried partners get none of them, no matter how long the relationship has lasted.
Property
Marital property rules divide assets accumulated during a marriage. They don’t apply here. Property belongs to whoever holds title. If both of you paid the mortgage on a house titled only in your partner’s name, your partner owns the house. In Murphy v. Bowen, 756 S.W.2d 149 (Ky. Ct. App. 1988), the court held that cohabitation alone creates no contractual rights comparable to marriage, though an express agreement between partners about property can be enforced. Living together earns you nothing automatically; a signed agreement can earn you a great deal.
Inheritance
Kentucky’s intestacy laws send a deceased person’s property to a surviving spouse, children, and other relatives in a set order. An unmarried partner is not on that list. If your partner dies without a will, you inherit nothing, regardless of how long you lived together or how much you contributed. A will naming you as beneficiary is the only reliable fix, and beneficiary designations on retirement accounts, life insurance, and payable-on-death bank accounts add a second layer that passes assets directly and skips probate.
Healthcare Decisions
Without a marriage, you have no automatic authority to make medical decisions for your partner. Kentucky’s statutory power of attorney form excludes healthcare decisions.8Kentucky Legislative Research Commission. Kentucky Revised Statutes 457.420 – Statutory Form Power of Attorney Your partner has to sign a separate advance directive designating you as their healthcare surrogate. Under KRS 311.629, a designated surrogate can make any healthcare decision the patient could make personally, once the patient lacks decisional capacity.9Kentucky Legislative Research Commission. Kentucky Revised Statutes 311.629 – Powers of Health Care Surrogate Without that document, hospitals turn to blood relatives during a crisis, and you may be shut out entirely.
Custody and Paternity for Unmarried Parents
Custody rules don’t depend on whether parents were married. Kentucky decides custody based on the best interests of the child under KRS 403.270, which creates a rebuttable presumption that joint custody with equally shared parenting time serves that interest. The court weighs the child’s relationships with each parent, adjustment to home and school, and any history of domestic violence.10Kentucky Legislative Research Commission. Kentucky Revised Statutes 403.270 – Custodial Issues, Best Interests of Child
Legal parentage is not automatic for unmarried fathers. A father listed on the birth certificate through a voluntary acknowledgment of paternity has standing to seek custody. If paternity is disputed, a court can order genetic testing. Until paternity is legally established, an unmarried father may struggle to assert custody or visitation. Resolving this early prevents problems later.
A non-biological partner who has been raising a child has one important path to standing. Under KRS 403.270, a “de facto custodian” is someone who has been the primary caregiver and financial supporter of a child for at least six months (child under three) or one year (child three or older). Once a court finds by clear and convincing evidence that the person qualifies, the de facto custodian gets the same standing as a parent in custody proceedings.10Kentucky Legislative Research Commission. Kentucky Revised Statutes 403.270 – Custodial Issues, Best Interests of Child This is one of the few routes for a non-biological, non-adoptive partner to secure legal rights to a child they’ve been raising.
Documents That Substitute for Marriage
Almost every legal right marriage provides can be built up piece by piece with the right paperwork. It takes work, but it works.
A will names your partner as beneficiary and prevents Kentucky’s intestacy rules from cutting them out. Beneficiary designations on retirement accounts, life insurance, and bank accounts pass assets directly and keep family members from challenging distributions later.
A healthcare surrogate designation under KRS 311.629 gives your partner authority over medical decisions if you lose capacity. A durable power of attorney for finances, using Kentucky’s statutory form under KRS 457.420, lets your partner handle your bank accounts, pay bills, and manage transactions if you cannot. Both documents need to be signed before a notary, and both can name your partner as your agent.
A cohabitation agreement is a contract between partners covering property ownership, expense sharing, and what happens to shared assets if you split. Kentucky courts enforce these under standard contract principles. Oral agreements are technically valid but hard to prove. A written agreement signed by both partners, ideally reviewed by separate attorneys, is far more secure and much harder to dispute.
Ending the Relationship Without a Divorce
Because there’s no marriage, there’s no divorce, and that isn’t the simplification it sounds like. Married couples splitting up follow a structured process that divides marital property under statutory guidelines. Unmarried couples have no equivalent framework. Each asset becomes its own dispute.
Co-owned property may require a partition action to force a sale or division. If you contributed to a home titled solely in your partner’s name, you would have to argue for your interest through a breach of contract claim, unjust enrichment, or a constructive trust theory. These cases are expensive, and outcomes are far less predictable than in divorce court. A cohabitation agreement signed while the relationship is healthy prevents most of these fights before they start.