Common-Law Marriage in Colorado

Colorado is one of the few states that still recognizes common-law marriage. Once it forms, it is legally identical to a licensed, ceremonial marriage — the same rights to property and support, the same inheritance rights, the same tax and benefit status — and the same hard rule that the only way to end it is a formal divorce in court. No license, no ceremony, and no paperwork is required to create one, which is exactly why so many people turn out to be married — or accused of it — without ever signing a thing.

For decades the test came from People v. Lucero (1987). In 2021 the Colorado Supreme Court modernized it in three companion cases — In re Marriage of Hogsett & Neale, In re Marriage of LaFleur & Pyfer, and In re Estate of Yudkin. The question now: did the couple mutually agree to enter a marital relationship — to share a life together as spouses in a committed, intimate relationship of mutual support and obligation — and did their conduct show it? Courts weigh the totality of the circumstances. No single fact is required, and none decides it alone.

There is no seven-year rule — that number appears nowhere in Colorado law. You do not need a ceremony, a license, or any minimum time living together. Living together by itself does not create a marriage. And since 2021 you don’t have to broadcast the marriage to the world for it to count — the Court recognized that couples may keep a relationship private for legitimate reasons and still be married.

(1) A mutual agreement to be married — a shared, present intent, not “someday.” (2) Conduct that matches it — how you handle money, property, taxes, benefits, and names, and how you hold yourselves out. (3) Capacity — both partners at least 18 (C.R.S. § 14-2-109.5) and both free to marry. Miss the capacity piece and there is no valid marriage, whatever else is true.

Express statements that you’re married (given real weight); joint finances (accounts, bills, loans); joint property, deeds, and leases; taxes filed as married; naming each other as spouse or beneficiary on insurance, retirement, wills, and powers of attorney; a shared last name; rings and anniversaries; children raised together; and your reputation among the people who know you. It is the pattern that persuades a court — not any single document.

If you may need to establish a common-law marriage — for a divorce, for benefits, or for an inheritance — start gathering now: tax returns filed as married, joint account and loan statements, deeds, titles, and leases in both names, insurance and beneficiary forms listing “spouse,” cards, emails, or texts using “husband/wife,” photos, and the names of people who will testify that you held yourselves out as married. Assembling that proof is investigator work — and it is exactly what Charles does.

Sometimes a former partner claims a marriage that never existed — usually to reach property, support, or an estate. The defense is the mirror image: showing there was no mutual, present agreement to be married, and that the conduct pointed to dating or cohabitation, not marriage. Timing, documents, and credibility carry these cases. Don’t concede the point by accident, and don’t assume the claim will simply collapse on its own.

This is the part that catches people off guard: once a common-law marriage exists, you cannot just move out or “break up.” Ending it takes the same formal dissolution of marriage (C.R.S. § 14-10-106) as any other marriage — with division of marital property and debt (C.R.S. § 14-10-113), possible spousal maintenance (C.R.S. § 14-10-114), retirement division by QDRO, and, if you have children, parenting-time and child-support orders.

Because it is a real marriage, a common-law spouse may be entitled to a share of the property and retirement built during the relationship, to maintenance, and to inherit — and may also be responsible for marital debt. That is why “are we, or aren’t we?” is rarely academic. It decides who keeps what, and who owes what.

If a common-law spouse dies without a will, the survivor has inheritance rights under Colorado’s intestacy law — but the estate, or other heirs, may dispute whether the marriage existed at all. That was the fight in Yudkin (2021), litigated in probate. Proving a marriage after a death is harder and higher-stakes, because the other spouse can no longer confirm it — which is why the evidence file matters most exactly when it is hardest to build.

In Hogsett and LaFleur the Court made clear the test applies even-handedly to same-sex couples — and that a common-law marriage can be recognized as having begun before same-sex marriage was legal in Colorado. Judges are told to account for the reality that these couples were once barred from marrying, or from openly holding themselves out. If your relationship predates 2015, that history matters and should not be assumed away.

If you don’t want to be common-law married, keep finances and titles separate and put your intentions in writing with a cohabitation agreement. If you do consider yourselves married, make it unmistakable — file taxes as married, name each other as spouse, and sign wills and powers of attorney. Either way, a short, clear conversation now is far cheaper than a courtroom fight later.

Whether you need to establish a marriage, defend against a claimed one, plan around one, or dissolve one, this is squarely Charles’s lane — a Colorado family-law attorney with a 700-investigation background who builds, and takes apart, exactly these fact patterns. Start with a no-charge 20-minute call and walk away knowing where you actually stand.