Do All 50 States Recognize Common Law Marriage?

Think a long cohabitation makes you legally married? It does not in most places, and common law marriage is recognized in only a few states. Our guide maps each state’s exact rules, shows how to secure your partner’s benefits, and explains the simple legal steps you must take to protect your rights.

The 50-State Recognition Gap

Common law marriage is not recognized in all 50 states. Some states treat a long-term couple as married without a ceremony, while many others do not give those couples any marital rights.

This gap means a pair could be legally married in Colorado but become strangers in the eyes of the law if they move to Florida. Only a handful of states still allow new common law marriages today.

State laws vary a lot, and this creates the 50-state recognition gap that trips up many couples.

Just because you act married does not mean the law agrees in every state.

States That Still Say Yes

Today, about 16 states and the District of Columbia recognize common law marriage in some form. These include Colorado, Iowa, Kansas, Montana, New Hampshire (for inheritance only), Oklahoma, Rhode Island, South Carolina, Texas, Utah, and a few others.

If you live in one of these places and act like a married couple, you may have full legal rights. But you should still keep proof like joint bills or a signed statement.

States That Do Not Recognize It

The rest of the states do not allow new common law marriages. Some used to but ended the practice decades ago. For example, Florida and California never treat cohabiting couples as married.

This table shows a small sample. The key point is the 50-state recognition gap splits the country into two camps.

What You Can Do to Stay Safe

If you move between states, do not assume your relationship status follows you. Take simple steps to protect your partner and children.

• Sign a cohabitation agreement with a lawyer.
• Make a will and name your partner as beneficiary.
• Get a civil marriage license if you want full rights everywhere.

These actions close the gap for your family and avoid court fights later.

States That Recognize the Union

Common law marriage is not valid in all 50 states. Only a few states let couples become married without a formal wedding or license. If you live in one of these places, you may have the same rights as a couple who married at a chapel.

Today, about 8 states and the District of Columbia still recognize this type of union. A few others accept common law marriages that were made before a certain date. It is smart to know your state’s rules before you rely on this kind of marriage.

Colorado is a good example of a state where a couple can be common law married just by living together and acting like spouses.

States That Currently Allow Common Law Marriage

Here is a simple table of places that honor the union. This can help you see if your home state is on the list.

If you move from a state that allows this to one that does not, your union is usually still seen as valid. This is due to the full faith and credit rule.

• Keep documents that show shared bills.
• Write a statement that you are married.
• Ask a local lawyer if you are unsure.

Knowing the law helps you protect your family and assets. Always check with your state for the most current rules.

States Without Common Law Recognition

Common law marriage is not valid in every state. If you live in a place that does not accept it, you will not have the same rights as married couples even if you act like spouses for years.

The rest of the country does not recognize new common law marriages, which means you must get a legal license to be married. Only a few states and the District of Columbia still allow this type of union.

Most states require a marriage license and ceremony to count as married.

Where Common Law Marriage Is Not Accepted

Many states stopped recognizing this type of marriage long ago. For example, California and New York never allowed it or ended it years back. Here is a simple table showing some states that do not permit new common law marriages:

If you move from a state that allowed your common law marriage to one that does not, the new state will usually still respect it. Keep proof like joint bills or a signed paper to stay safe.

Cross-State Validity After Moving

When a couple has a common law marriage in a state that allows it, they may worry about what happens if they move. The good news is that a valid common law marriage made in one state is usually honored in every other state. This is because the U.S. Constitution requires states to respect the public acts and records of other states.

However, not all 50 states let you create a new common law marriage within their borders. Only a few states like Colorado, Texas, and Utah still allow it. If you move to a state that does not allow new common law marriages, you cannot start one there, but your old one stays valid.

How States Treat Your Marriage After a Move

Let’s look at a simple table to see which states let you form a common law marriage and which do not. This helps you know the rules before you pack your boxes.

Remember, even states that say “No” in the table will still respect a common law marriage from another state. Your rights as a married couple stay safe when you cross state lines.

A marriage that was legal where it began must be treated as legal everywhere else.

Here are some easy steps to protect your marriage after moving:

• Keep proof of your common law marriage, like joint bank accounts or a signed statement.
• Check the new state’s rules on marriage before you move.
• Talk to a local family lawyer if you have questions about taxes or inheritance.

Proving an Informal Marriage

Many people believe that living together for a long time automatically creates a common law marriage. In states that recognize this type of union, the law requires clear proof that both people agreed to be married and presented themselves as a couple.

If you need to show an informal marriage existed, gather everyday documents. These papers help you get benefits, file taxes, or settle estate matters. Act early so you are not rushed during a crisis.

Common Proof You Can Collect

States such as Texas, Colorado, and Montana accept several kinds of evidence. A signed statement from both partners is a strong start. Joint accounts and shared bills also show you run a life together.

Keep these records in a safe place. If a dispute arises, a judge will look at the whole picture of your life.

A simple affidavit signed by both partners can prove a marriage without a ceremony.

You can also use witness letters from friends or family. They should say they knew you as a married couple. This human touch helps when papers are missing.

Remember, not all 50 states accept informal marriage. Only about a dozen do. If you move to a state that does not recognize it, your proof still matters for federal benefits. Check the rules where you live before assuming your rights are safe.

Protecting Unmarried Couples’ Rights

Because common law marriage is only recognized in a minority of states, unmarried partners must take proactive legal steps to secure their rights. Without statutory recognition, courts may not automatically grant property or inheritance rights to a surviving or separating partner.

Cohabitation agreements, estate planning documents, and designated beneficiary forms are essential tools for safeguarding interests. Executing a written cohabitation contract can clarify asset division, while durable powers of attorney ensure medical and financial decisions respect each partner’s wishes.

Practical Measures for Unmarried Partners

• Draft a comprehensive cohabitation agreement with legal counsel.
• Create or update wills and trusts to name your partner as beneficiary.
• Assign payable-on-death designations for bank and retirement accounts.
• Grant health care proxies and financial powers of attorney to your partner.

1. FindLaw – FindLaw
2. Nolo – Nolo
3. American Bar Association – American Bar Association