Under the cohabitation laws in Tennessee, unmarried couples who live together have almost none of the automatic legal rights that come with marriage. No matter how long you share a home, combine finances, or introduce each other as partners, the state treats you as legal strangers. That means no automatic property rights, no inheritance if your partner dies without a will, no right to make medical decisions for each other, and no claim to support if you break up. Whatever protection you want, you have to build yourself.
Tennessee Does Not Recognize Common-Law Marriage
Tennessee requires a marriage license and a formal ceremony performed by an authorized person before a marriage is legally valid.1Justia Law. Tennessee Code 36-3-301 – Persons Who May Solemnize Marriages You cannot create a common-law marriage inside the state. Living together for decades, filing joint tax returns, sharing a last name, calling each other husband or wife — none of it changes your legal status. Without the license and ceremony, you are single in the eyes of the law.
There is one exception. If you validly entered a common-law marriage in a state that still allows them, such as Colorado or Texas, and later moved to Tennessee, the state will honor that marriage. You would have the same legal rights as any other married couple here. What matters is that the common-law marriage was valid where it was formed.
Property and Debt When the Relationship Ends
Divorcing spouses in Tennessee split their assets under equitable distribution rules. Unmarried couples get none of that framework. Ownership follows title. If your name is on the deed, the house is yours. If only your partner’s name is on the car, the car is your partner’s, even if you made every payment on it.
Debt works the same way. A credit card or loan in one partner’s name belongs to that partner alone. Your name is not on the account, so neither is your obligation.
Jointly Titled Property
Property held in both names follows different rules depending on how the title is structured. If you own a home or a bank account as joint tenants, the law starts with a presumption that each of you owns half. A court can adjust that split if one partner shows they contributed significantly more, but equal is the default.
When jointly owned real estate cannot be physically divided, either co-owner can file a partition action asking a court to order a sale and split the proceeds. It is adversarial, slow, and expensive. A written agreement between the two of you before problems arise avoids that path.
No Palimony in Tennessee
Tennessee does not recognize palimony. Some states allow a financially dependent unmarried partner to seek support after a breakup; Tennessee does not. When the relationship ends, each person keeps only what they legally own. There is no way to claim ongoing support based on the length of the relationship or the sacrifices you made during it.
If You Have Children Together
Every parent owes their child financial support in Tennessee regardless of whether the parents were married. But for unmarried fathers, one step has to happen first: legal paternity has to be established before the father has any enforceable rights.
Under Tennessee law, the mother of a child born outside of marriage has sole legal and physical custody until paternity is formally established.2TN.gov. Establishing Paternity – What Parents Need to Know The biological father has no legal right to custody or visitation during that time, even if his name is on the birth certificate. A birth certificate is not the same as a legal determination of paternity.
How Paternity Gets Established
The simplest route is for both parents to sign a Voluntary Acknowledgment of Paternity, which must be notarized.2TN.gov. Establishing Paternity – What Parents Need to Know Hospitals offer the form at birth, and you can also complete it later through the local child support office or the Tennessee Office of Vital Records.
If either parent has doubts about biological parentage, do not sign the voluntary form. Either parent can instead file a complaint to establish parentage in court, and the court can order DNA testing.3Justia Law. Tennessee Code 36-2-305 – When Action May Be Brought The local child support office can also start the process.
Once paternity is set by court order or voluntary acknowledgment, the father has the same rights and responsibilities as a married father: he can seek custody and parenting time, and he owes child support. The court will build a parenting plan around the child’s best interests, addressing schedule, decision-making, and support.
What Happens if Your Partner Dies
This is where cohabitation without planning does the most damage. If your partner dies without a will, you inherit nothing. Tennessee’s intestate succession statute sends the estate to legal relatives in a fixed order: children first, then parents, then siblings and their descendants, then grandparents and more distant relatives.4Justia Law. Tennessee Code 31-2-104 – Share of Surviving Spouse and Heirs An unmarried partner is not on that list at all. You could share a home for 30 years and watch an estranged sibling of your partner inherit ahead of you.
Protecting each other takes deliberate legal planning. At minimum, unmarried partners should put three documents in place:
- A last will and testament naming your partner as a beneficiary. Without one, intestate succession controls everything.
- A healthcare power of attorney authorizing your partner to make medical decisions if you cannot. Without it, those decisions fall to a legal family member, and a hospital may not even let your partner into the room.
- A financial power of attorney giving your partner authority over bank accounts, bill payments, and other financial matters if you are incapacitated.
Beneficiary Designations Control Some Accounts
Retirement accounts, life insurance policies, and certain bank accounts pass directly to whoever is named as the beneficiary, regardless of what a will says. The U.S. Supreme Court has confirmed that for retirement plans governed by federal law, the beneficiary designation on file with the plan controls, even if it conflicts with a will or a divorce decree.5U.S. Department of Labor. Current Challenges and Best Practices Concerning Beneficiary Designations in Retirement and Life Insurance Plans
For unmarried couples this is both the fastest tool and the easiest trap. You can name your partner as beneficiary on a 401(k), IRA, or life insurance policy, and those assets transfer without going through probate. But if you forget to update a designation from a prior relationship, the old beneficiary collects. Review every account and make sure the named beneficiaries match what you actually want.
Federal Benefits You Do Not Get
Several federal programs define eligibility through marriage, and cohabitation is not a substitute.
- Social Security survivor benefits are generally available only to a surviving spouse or an ex-spouse who was married to the deceased for at least 10 years. An unmarried partner has no claim to a deceased partner’s Social Security record.6Social Security Administration. Who Can Get Survivor Benefits
- The Family and Medical Leave Act lets eligible employees take unpaid leave to care for a spouse with a serious health condition. An unmarried partner does not qualify as a spouse under the FMLA, so you cannot take protected leave to care for a seriously ill partner.7U.S. Department of Labor. Fact Sheet #28L – Leave Under the Family and Medical Leave Act
- When an employer extends health coverage to an employee’s unmarried partner, the IRS treats the employer’s contribution toward that coverage as taxable income to the employee. The same coverage for a married spouse is tax-free.
Unmarried couples also cannot file a joint federal return, which often means a higher combined tax bill. One partner may qualify for head of household status, but only if they pay more than half the cost of maintaining a home for a qualifying dependent such as a child. An unmarried partner does not count as a qualifying person for head of household purposes.8Internal Revenue Service. U.S. Citizens and Residents Abroad – Head of Household
Domestic Violence Protection Still Applies
Tennessee’s domestic abuse laws do protect cohabiting partners. The state defines a domestic abuse victim to include any adult or minor who currently lives with or has previously lived with the abuser.9Justia Law. Tennessee Code 36-3-601 – Part Definitions The statute also covers people who are dating or have dated, so a partner who has already moved out remains eligible.
An unmarried partner can petition for an order of protection through the local court. That order can require the abuser to leave a shared home, prohibit contact, and grant temporary custody of children. Marital status has nothing to do with eligibility.
A Warning if You Already Receive Alimony
If you receive alimony from a former spouse and you move in with a new partner, your ex can petition the court to reduce or suspend those payments. Tennessee law creates a rebuttable presumption that the new living arrangement means you either need less financial support or are spending alimony money supporting someone else.10Justia Law. Tennessee Code 36-5-121 – Decree for Support of Spouse It applies to long-term alimony (alimony in futuro) and to transitional alimony.
The presumption tilts the starting point against you. You can rebut it with financial evidence, but the burden is on you to prove you still need the support at the current level. If you are receiving alimony and thinking about moving in with someone, talk to a family lawyer before you sign a lease together.
Cohabitation Agreements Fill the Gaps
A cohabitation agreement is a contract between partners that spells out what Tennessee law leaves blank: how you handle property, shared expenses, debts, and what happens to everything if the relationship ends. Courts treat these like any other contract.
To be enforceable, the agreement has to be in writing and signed voluntarily by both partners. An oral understanding will not hold up. The agreement can cover:
- Property division — who owns what, how jointly purchased items get split, and what happens to a shared home.
- Debt responsibility — which partner is responsible for which debts, including any taken on during the relationship.
- Expense sharing — how rent, utilities, and household costs get divided.
- Support waivers — an agreement that neither partner will seek financial support from the other after a breakup.
Courts will not enforce a cohabitation agreement built on sexual services as the primary exchange of value. The financial terms need to stand on their own, based on shared obligations, property management, or household services. When they do, courts will enforce them.
The other things that void a cohabitation agreement are the same things that void any contract: coercion, hidden assets or debts, or terms so one-sided that no reasonable person would agree voluntarily. Each partner should have the chance to consult with their own attorney before signing. Separate lawyers reviewing the agreement makes it much harder for either side to later claim they did not understand what they signed.