Preventing the formation of a common-law marriage in Colorado requires proactive measures to ensure a relationship remains legally recognized only as informal cohabitation. This involves avoiding actions and representations that could be construed as an agreement to be married. For instance, couples choosing not to marry should refrain from filing joint tax returns, referring to each other as spouses, or holding themselves out to the community as a married couple. Clarifying intentions with a written agreement can further solidify the non-marital status of the relationship.
Maintaining a clear legal distinction between cohabitation and marriage provides significant advantages, especially regarding property division and financial responsibilities upon separation. While Colorado abolished common-law marriage for relationships formed after January 1, 2007, the state continues to recognize those established before this date. Understanding the requirements for establishing a common-law marriage, even if no longer legally possible to create a new one, remains critical for individuals cohabitating in Colorado to protect their individual interests and avoid unintended legal entanglement.