Common law marriage in D.C. is real and fully valid: the District is one of about ten U.S. jurisdictions that still let a couple become legally married without a license or ceremony. If the requirements are met, the marriage is legally identical to one performed by an officiant, with the same rights to property, inheritance, benefits, and spousal support, and the same requirement that it be ended by a formal divorce.
What It Takes to Form One
D.C. courts recognize a common law marriage when two things are true at the same time: the partners make an express, mutual agreement to be married in the present tense, and they live together as spouses.1Social Security Administration. POMS PR 05605.010 – District of Columbia
Both partners also have to be legally capable of marrying in the first place. That means both are at least 18, neither is already married to someone else, and the two are not closely related by blood or marriage. A relationship that violates any of those rules is void from the start, no matter how long it has continued. If one partner was still married to someone else when the relationship began, the prior marriage has to end by death or divorce before a common law marriage can form.2D.C. Law Library. District of Columbia Code Title 46 Chapter 4 – Marriage
Same-sex couples form common law marriages under the same rules. The D.C. Court of Appeals confirmed this in Spellman v. Kelly (2016), applying the doctrine even to relationships that predated D.C.’s 2010 marriage equality statute.2D.C. Law Library. District of Columbia Code Title 46 Chapter 4 – Marriage
The Present-Tense Agreement
The agreement is the piece most couples misunderstand. It has to be a mutual decision, in words, to consider yourselves married starting now. A promise to marry someday does not count. An engagement does not count. A vague sense that you will eventually make it official does not count. There is no required script and no need for rings or vows, but what you exchange has to unambiguously say that you are entering a marital relationship as of that moment, one that can only be ended by death or divorce.1Social Security Administration. POMS PR 05605.010 – District of Columbia
Cohabitation
The second element is living together as spouses. D.C. does not set a minimum duration; there is no magic number of months or years. But sharing an address as roommates is not enough. The living arrangement has to reflect a marital relationship, alongside the mutual agreement above. Holding yourselves out publicly as married strengthens the picture: introducing each other as spouses, using the same last name, being known that way in your community. Courts weigh that public reputation when deciding whether a common law marriage existed.
Proving It Later
The hard part is not forming a common law marriage. It is proving one exists when it matters — in a divorce, an inheritance fight, a benefits claim. Whoever asserts the marriage has to prove it by a preponderance of the evidence, and D.C. courts have said these claims should be “closely scrutinized,” particularly when one partner has died and the survivor stands to gain.1Social Security Administration. POMS PR 05605.010 – District of Columbia
Documentation showing that you treated yourselves as married is the strongest evidence:
- Joint federal or D.C. tax returns where both partners filed as married
- Health insurance, life insurance, or employer benefits forms naming each other as “spouse”
- Joint bank accounts, joint credit cards, co-signed loans
- Shared property: a jointly owned home, a joint lease, both names on a car title
Testimony fills gaps. D.C.’s divorce factsheet notes that without a marriage certificate, a common law marriage plaintiff “must prove the marriage through testimony of friends and family, or through documents.”3LawHelp.org/DC. Divorce in Washington D.C. Factsheet Friends, relatives, coworkers, and neighbors can speak to how the couple introduced themselves, what name they used, how the community understood the relationship.
A couple that has lived together quietly for years, with no paper trail and no public acknowledgment of a marriage, faces a steep climb. If proving your common law marriage might ever matter, building the record while things are calm is far easier than reconstructing it in a courtroom.
What Rights It Gives You
Once established, a common law marriage in D.C. is legally identical to a ceremonial one. There is no lesser version.
Divorce, Property, and Alimony
If the relationship ends, a D.C. court divides marital property under the same equitable distribution framework used in any divorce. The court sets aside each spouse’s individual property (what was owned before the marriage or received as a gift or inheritance during it), then distributes the marital property and debt in a way it considers “equitable, just, and reasonable,” weighing the length of the marriage, each spouse’s income and earning potential, contributions as a homemaker, and each spouse’s role in acquiring or depleting assets.4D.C. Law Library. District of Columbia Code 16-910 – Assignment and Equitable Distribution of Property
Alimony is available too. A judge can order either spouse to pay support to the other when it seems “just and proper,” either indefinitely or for a set period, considering each spouse’s ability to be self-supporting, the standard of living during the marriage, the marriage’s duration, and each spouse’s age and health.5D.C. Law Library. District of Columbia Code 16-913 – Alimony
Inheritance
If your common law spouse dies without a will, D.C.’s intestacy statute gives you a share of the estate. The size depends on whether your spouse also left children or surviving parents, and whether those children are yours together or from another relationship. A surviving spouse with no competing children or parents inherits the whole estate; other configurations produce shares of one-half, two-thirds, or three-fourths.6D.C. Law Library. District of Columbia Code 19-302 – Share of Spouse or Domestic Partner These shares apply only to property not already directed elsewhere by a beneficiary designation, trust, or joint ownership.
Healthcare Decisions
If your spouse becomes incapacitated and has not signed a durable healthcare power of attorney, D.C. law places you second in the priority list (after any court-appointed guardian) to make medical decisions on their behalf, including granting, refusing, or withdrawing consent for treatment.7D.C. Law Library. District of Columbia Code 21-2210 – Substituted Consent
Federal Taxes and Social Security
The IRS recognizes any marriage valid where it was formed, so a D.C. common law marriage lets you file federal returns as “married filing jointly” or “married filing separately.” Your status is set by whether you are married on the last day of the tax year.8Internal Revenue Service. Filing Status
The Social Security Administration recognizes valid common law marriages for spousal and survivor benefits, applying the same core test D.C. courts do: present-tense agreement, cohabitation, and the legal capacity of both partners to marry, all in a jurisdiction that recognizes the doctrine.9Social Security Administration. POMS GN 00305.060 – Common-Law Marriage General
Children of Common Law Couples
A child born to a married couple in D.C. generally benefits from a legal presumption that both spouses are the child’s parents. That presumption applies to common law spouses in theory, but D.C.’s Office of the Attorney General has cautioned that because the requirements for proving a common law marriage are “very stringent,” the safer route is to establish parentage through a Voluntary Acknowledgment of Paternity (AOP) form or a court order.10Office of the Attorney General for the District of Columbia. Parentage and Paternity – Marriage and Domestic Partnerships The AOP can be completed at the hospital right after birth, putting both parents on the birth certificate without going to court and heading off any later dispute about whether the marriage existed.11Office of the Attorney General for the District of Columbia. Parentage and Paternity – Unwed Parents
You Cannot End It Informally
Moving out does not end a common law marriage. Neither does dropping a shared last name, telling people you have split, or letting years pass. Because you are legally married, ending it takes a formal divorce through the D.C. Superior Court, and the process is the same as for any married couple. D.C. is a no-fault jurisdiction: either spouse can obtain a divorce by asserting they no longer wish to remain married, with no need to prove wrongdoing or a separation period.12D.C. Law Library. District of Columbia Code 16-904 – Grounds for Divorce, Legal Separation, and Annulment The court will resolve property division, alimony, and custody as part of the case. Until the decree is final, you are still married, still unable to remarry, and still potentially exposed to obligations tied to the marriage. Couples who separate informally without divorcing sometimes discover years later that their common law marriage created entanglements they never resolved.
If You Move Out of D.C.
Under the Full Faith and Credit Clause, a marriage validly formed in one state must be recognized in the others.13Library of Congress. Constitution Annotated – Article IV Section 1 So a common law marriage that meets D.C.’s requirements should be treated as valid if you move to Virginia, Maryland, or anywhere else, even in states that do not allow their own residents to form common law marriages. If the marriage’s validity is ever challenged in the new state, though, you will still need to show that it met D.C.’s standards when it was formed. That is one more reason to keep the documentation strong while you can.