If you’re wondering whether Washington is a common law marriage state, the short answer is no—Washington does not recognize the creation of new common law marriages. Living together, sharing finances, or referring to each other as husband and wife does not create a legal marriage under Washington law.
However, Washington generally recognizes valid common law marriages that were legally established in another state where common law marriage is permitted. This means a couple who entered into a valid common law marriage elsewhere may still have that marriage recognized after moving to Washington.
Although Washington does not recognize common law marriage, it does recognize Committed Intimate Relationships (CIRs) in certain situations. A CIR is not the same as a marriage, but it may affect how property acquired during the relationship is divided if the couple separates.
In this guide, you’ll learn Washington’s common law marriage laws, how out-of-state common law marriages are treated, and how Committed Intimate Relationships differ from marriage.
Quick Answer
| Question | Answer |
| Is Washington a common law marriage state? | No. Washington does not allow new common law marriages. |
| Can living together create a legal marriage? | No. Cohabitation alone does not create a legal marriage. |
| Does Washington recognize common law marriages from other states? | Yes, if they were legally established in a state where common law marriage is recognized. |
| Does Washington recognize Committed Intimate Relationships (CIRs)? | Yes, in certain circumstances involving property rights. |
| Is a marriage license required? | Yes. Couples must obtain a marriage license and complete a legally recognized marriage ceremony. |
Is Washington a Common Law Marriage State?
No. Washington is not a common law marriage state.
Couples cannot become legally married simply by living together, sharing finances, or presenting themselves as husband and wife. To establish a legal marriage in Washington, couples must obtain a marriage license and complete the state’s legal marriage requirements.
Without following these legal steps, a relationship is not considered a legal marriage under Washington law.
What Is Common Law Marriage?
A common law marriage is a legally recognized marriage created without a marriage license or formal wedding ceremony. Instead, the couple satisfies specific legal requirements established by state law.
Only a limited number of U.S. states continue to recognize new common law marriages, and Washington is not one of them.
Does Living Together Create a Common Law Marriage in Washington?
No.
Many people believe that living together for several years automatically creates a legal marriage. This is a common misconception.
Even if a couple:
- Lives together for many years
- Shares financial responsibilities
- Owns property together
- Has children together
- Uses the same last name
they are not legally married under Washington law.
However, if certain legal factors are present, the relationship may qualify as a Committed Intimate Relationship, which can affect property rights if the relationship ends.
What Is a Committed Intimate Relationship (CIR)?
Washington courts recognize Committed Intimate Relationships (CIRs), previously referred to as “meretricious relationships.”
A CIR is not a marriage, but it may allow a court to fairly divide property acquired during a long-term committed relationship.
When deciding whether a CIR exists, courts may consider factors such as:
- The length of the relationship
- Continuous cohabitation
- Whether the relationship was stable and committed
- Joint ownership of property
- Shared financial responsibilities
- The intent of the parties
A CIR does not provide all of the legal rights that married couples receive, but it may protect certain property interests when a relationship ends.
Does Washington Recognize Common Law Marriages From Other States?
Yes.
Although Washington does not allow couples to establish a common law marriage within the state, it generally recognizes valid common law marriages legally established in another state where they are permitted.
For example, if a couple legally entered into a common law marriage in Texas, Colorado, or another state that recognizes common law marriage before moving to Washington, Washington will generally recognize that marriage.
Why Doesn’t Washington Recognize Common Law Marriage?
Washington requires couples to complete a formal legal marriage process before a marriage is recognized.
This provides clear legal proof of the marriage and reduces disputes involving:
- Property ownership
- Inheritance
- Divorce
- Spousal benefits
- Family law matters
An official marriage record makes it easier to establish each spouse’s legal rights and responsibilities.
Legal Rights for Unmarried Couples in Washington
Although unmarried couples do not automatically receive the same legal rights as married spouses, those in a Committed Intimate Relationship may have certain property rights.
Depending on the circumstances, unmarried couples may also protect themselves through:
- Cohabitation agreements
- Wills
- Trusts
- Durable powers of attorney
- Health care directives
- Beneficiary designations
- Joint ownership agreements
These legal tools help clarify financial and personal rights without creating a legal marriage.
What Happens if an Unmarried Couple Separates?
If an unmarried couple separates, Washington divorce laws do not apply because there is no legal marriage.
However, if the relationship qualifies as a Committed Intimate Relationship, a court may equitably divide certain property acquired during the relationship.
Other issues may include:
- Ownership of jointly owned property
- Shared financial accounts
- Child custody and child support, if children are involved
- Contractual agreements
Can Unmarried Couples Receive the Same Benefits as Married Couples?
Generally, no.
Even if a relationship qualifies as a Committed Intimate Relationship, it does not automatically provide all the legal rights available to married couples.
For example, unmarried partners generally do not automatically receive:
- Inheritance rights
- Spousal retirement benefits
- Spousal support
- Automatic medical decision-making authority
- Federal tax benefits available to married couples
States That Still Recognize Common Law Marriage
As of 2026, only a limited number of U.S. jurisdictions continue to recognize new common law marriages, including:
- Colorado
- Iowa
- Kansas
- Montana
- Oklahoma (limited circumstances)
- Rhode Island
- Texas
- Utah
- District of Columbia
Washington is not one of these jurisdictions.
Common Misconceptions About Washington Common Law Marriage
Myth: Living together for seven years creates a marriage.
False. Washington has no law that automatically creates a marriage after a certain number of years.
Myth: Having children together creates a common law marriage.
False. Having children together does not establish a legal marriage.
Myth: Sharing finances makes a couple legally married.
False. Joint bank accounts, shared property, or shared debts do not create a legal marriage.
Myth: Washington recognizes common law marriage.
False. Washington does not recognize the creation of common law marriages, although it does recognize Committed Intimate Relationships for certain property matters.
Frequently Asked Questions
Is Washington a common law marriage state?
No. Washington does not recognize the creation of new common law marriages.
Does Washington recognize common law marriage?
Washington does not allow common law marriages to be created within the state. However, it generally recognizes valid common law marriages legally established in another state.
What is a Committed Intimate Relationship in Washington?
A Committed Intimate Relationship (CIR) is a long-term committed relationship that may give partners certain property rights if they separate. It is not the same as a legal marriage.
Can living together make you legally married in Washington?
No. Living together alone does not create a legal marriage in Washington.
Does Washington recognize common law marriages from another state?
Yes. Washington generally recognizes valid common law marriages that were legally established in states where they are permitted.
Is a marriage license required in Washington?
Yes. Couples must obtain a valid marriage license and complete a legally recognized marriage ceremony to be legally married in Washington.
Final Thoughts
Washington is not a common law marriage state and does not allow couples to establish a common law marriage by living together or presenting themselves as spouses. However, the state generally recognizes valid common law marriages legally created in jurisdictions where they are permitted. Unlike many other states, Washington also recognizes Committed Intimate Relationships (CIRs), which may provide certain property rights to unmarried couples when a long-term relationship ends. Couples seeking the full legal rights and protections of marriage in Washington must complete the state’s formal marriage requirements.