Common law marriage is a legally valid marriage created without a license or a ceremony. Where it is recognized, a couple who meet the requirements is treated as married for nearly every purpose, from divorce and property division to inheritance, taxes, and government benefits. The catch is geography and proof. Only a small number of states allow common law marriage today, and the requirements are strict enough that many long-term couples never actually form one.

What Makes a Marriage Common Law

A ceremonial marriage follows a process: apply for a license, have an authorized officiant perform the ceremony, and file the certificate. A common law marriage skips all of that. It depends instead on the couple's conduct and intent. Where recognized, the law treats the relationship as a marriage from the moment the legal requirements are met, not from the date a court or agency later confirms it.

Requirements for a Common Law Marriage

States that recognize common law marriage generally require some combination of the following:

  • Capacity to marry. Both people must be legally able to marry. That means they are old enough, are not already married to someone else, have the mental capacity to consent, and are not barred by a close family relationship.
  • A present agreement to be married. The couple must agree that they are married now, not that they might marry someday. A promise to marry in the future is an engagement, not a marriage.
  • Cohabitation. Most recognizing states require the couple to live together as spouses.
  • Holding out to the public. The couple must present themselves as married, using the same last name, introducing each other as a spouse, or listing each other as married on forms.

Some states require all of these elements. Others weigh the agreement and the public holding out most heavily. Because the details differ, the controlling law is usually the law of the state where the couple claims the marriage was formed.

What Does Not Create a Common Law Marriage

Popular belief overstates how easy it is to form one. None of the following, by itself, creates a common law marriage:

  • Living together for many years
  • Sharing a home, bills, or a bank account
  • Having children together
  • Wearing rings or calling each other partners
  • A private understanding that the relationship is permanent

The couple must intend to be married and must present themselves that way. A relationship can last decades and still not qualify.

Which States Recognize Common Law Marriage

Recognition has narrowed over time. Several states that once allowed it abolished it for relationships formed after a certain date, while continuing to recognize marriages created before the change. The states and jurisdictions most often cited as recognizing common law marriage today include Colorado, Iowa, Kansas, Montana, New Hampshire (for inheritance purposes), Oklahoma (for limited purposes), Rhode Island, South Carolina, Texas, Utah, and the District of Columbia. Alabama recognized common law marriages formed before January 1, 2017.

StatusExamplesWhat it means
Recognizes common law marriageColorado, Iowa, Kansas, Montana, Rhode Island, South Carolina, Texas, Utah, District of ColumbiaA qualifying couple is treated as married
Limited recognitionNew Hampshire, OklahomaRecognized only for specific purposes such as inheritance or certain benefits
Abolished but grandfatheredAlabama and othersOnly relationships formed before the cutoff date qualify
Does not recognizeMost statesA couple must marry formally to gain marital rights

This area changes as legislatures act. Confirm the current rule with the state legislature's official code before relying on it.

Why Recognition Matters

In a state that recognizes the marriage, the legal consequences are the same as for any other marriage:

  • Divorce. The couple must divorce to end the marriage, and courts divide property and debts under marital law.
  • Property. Marital property rules and elective share rights may apply, and a spouse may have a claim to the estate.
  • Inheritance. A surviving spouse can inherit under intestacy rules and may have priority to serve as administrator.
  • Benefits. Social Security, Medicare, and some pension and workers' compensation benefits may be available to a spouse.
  • Taxes. The couple may file federal taxes as married filing jointly or separately.
  • Health and financial decisions. A spouse may have priority as a decision maker and may hold rights under insurance policies.

Proving a Common Law Marriage

Because there is no certificate, proof often comes from the couple's conduct over time. Useful evidence can include joint tax returns, joint leases or deeds, shared insurance policies, beneficiary designations, bank and credit accounts, affidavits from people who knew the couple as married, and records showing a shared name or address. A court or agency decides whether the evidence meets the state's requirements.

Moving Between States

Most states follow the place of celebration rule: a marriage valid where it was formed is valid elsewhere. That means a common law marriage created in a recognizing state is generally respected when the couple moves. Some states apply a public policy exception and may refuse to recognize a marriage that could not have been formed under their own law. If a couple later needs a divorce in a state that does not recognize the marriage, they may have to establish the marriage in a recognizing state first.

Ending a Common Law Marriage

A common law marriage does not end by separation or by one person moving out. It ends by divorce or by the death of a spouse, just like a ceremonial marriage. Couples who separate without divorcing remain legally married, which can affect later relationships, property, and estate planning. If a court concludes that no marriage was ever formed, the couple's disputes are resolved under other theories, such as contract or property law, rather than divorce law.

Common law marriage is a narrow doctrine that turns on intent, conduct, and location. Because the rules vary and can change, confirm the current law in the relevant state and consult a licensed attorney about your situation. This guide is general information only and is not legal advice.