Unmarried couples who have built a life together — purchasing a home, accumulating shared assets, or raising children — face a distinct set of legal challenges when their relationship ends. Unlike divorcing spouses, who benefit from a well-established legal framework for dividing property and addressing financial obligations, unmarried partners have fewer automatic legal protections. Navigating the end of a domestic partnership or long-term cohabiting relationship requires a clear understanding of how the law applies to property ownership outside of marriage. Below, our friends at Merel Family Law explain the process of property division during a separation when you are not married.
The most important principle to understand is that cohabitation does not create the same legal rights as marriage in most states. The concept of “common law marriage” is frequently misunderstood — only a small number of states recognize it, and those that do have specific requirements that must be met, including holding yourselves out to the public as married and intending to be married. Simply living together for a long period, even years or decades, does not automatically create marital-type rights to each other’s property in the vast majority of jurisdictions.
How property is titled is the single most important factor when unmarried partners separate. Real estate that is titled solely in one person’s name generally belongs to that person legally, even if the other partner contributed to the mortgage, maintenance, or improvements. Real estate titled jointly — either as joint tenants or tenants in common — creates shared ownership, but the specific rights and obligations that follow depend on which form of joint ownership was used and on the laws of the state where the property is located.
When a property is jointly owned and the partners cannot agree on what to do with it after separation, a legal proceeding called a partition action can be filed. A partition action asks a court to either divide the property (if physically possible) or order its sale and divide the proceeds. Courts hearing partition cases will consider the ownership shares of each party, any agreements about the property, and documented contributions each party made. Partition actions can be costly and time-consuming, which is why reaching a negotiated resolution whenever possible is strongly advisable.
Beyond real estate, the division of other assets — vehicles, bank accounts, furniture, retirement accounts, and personal property — depends heavily on documentation. Bank accounts held jointly are generally split equally. Accounts held solely in one person’s name belong to that person. Vehicles follow the title. Personal property that was purchased by one partner and can be documented as such typically belongs to that partner. In the absence of documentation, disputes over personal property can become contentious and difficult to resolve.
One of the most effective tools available to unmarried couples is a cohabitation agreement — a contract between partners that outlines how property will be owned, how expenses will be shared, and how assets and debts will be divided if the relationship ends. These agreements are sometimes called domestic partnership agreements and can address a wide range of financial arrangements, including what happens to a home purchased together, how retirement savings will be treated, whether one partner is entitled to any financial support from the other after separation, and how shared debts will be handled.
Cohabitation agreements are generally enforceable as contracts, provided they meet the standard requirements for contract formation: offer, acceptance, consideration, and the absence of fraud or duress. Both parties should have their own legal counsel review the agreement to ensure it is fair and legally sound. Courts may be reluctant to enforce provisions that resemble alimony, as some states view support obligations between non-married partners differently.
For unmarried couples who have children together, child custody and child support are governed by the same family law principles that apply in divorce cases. Paternity, if not automatically established at birth, may need to be legally established before custody and support matters can be addressed.
Consulting a property division lawyer early in the separation process is particularly important for unmarried couples. Without the legal framework that marriage provides, protecting your interests requires proactive legal guidance and careful attention to documentation. The sooner both parties understand their rights and obligations, the more efficiently the separation can be resolved.