Why Washington State Does Not Recognize Common Law Marriage

A couple holds opposite sides of a model house across a table while a lawyer sits behind a desk with a gavel.

Why Washington State Does Not Recognize Common Law Marriage

Years together can make a relationship feel every bit as established as a marriage. Legally, Washington draws a sharper line. Washington State does not recognize common law marriage created through cohabitation, so sharing a home or building a financial life together does not automatically make a couple married. When the relationship ends, however, Washington may still provide a way to address certain property issues.

How Washington Defines a Legal Marriage

Washington law treats marriage as a legal status created through formal requirements. Before two people can be joined in marriage, they generally must obtain a marriage license, and state law also sets rules for solemnizing the marriage. Cohabitation and intent alone do not replace those requirements. No number of years living together creates a common law marriage in Washington.

A different situation can come up when a couple formed a valid common law marriage in another state before moving to Washington. Washington generally recognizes marriages that were valid where they were created, as long as they do not violate Washington’s laws. As a result, Washington may still recognize a valid common law marriage from another state.

How Washington Recognizes Committed Intimate Relationships

Because Washington does not recognize common law marriage formed within the state, courts use a separate doctrine for some unmarried couples. Washington courts may recognize a committed intimate relationship (CIR) when unmarried partners have lived in a stable, marriage-like relationship while knowing they were not legally married. Courts look at the relationship as a whole, not one isolated fact.

Factors may include:

  • The continuity of the couple’s cohabitation
  • The length of the relationship
  • The purpose of the relationship
  • The pooling of resources and services for joint projects
  • The partners’ intentions about the relationship

No single factor automatically establishes a CIR. If a court finds one existed, it can evaluate community-like property acquired during the relationship and make a just and equitable distribution. A CIR does not make the couple married, and it does not create every legal right associated with marriage.

Why Your Relationship Status Matters After Separation

The distinction may seem technical while a relationship is intact. But after a breakup, questions about a home or shared savings can make legal status much more important. A former couple may need to sort out whether Washington recognizes the relationship itself or whether the dispute centers on property rights arising from a CIR.

If you are searching for common law marriage attorneys because a long-term relationship has ended, call LaCoste Family Law. Our team can review how the relationship was structured and explain how Washington law may apply to the property you two have accumulated. A conversation about your circumstances can help you understand where you stand and feel more prepared for what comes next.