If your partner owns the house and you’re wondering what rights you have, the short answer depends on one thing above all: whether you’re legally married. If you are, the home is generally treated as marital property in a divorce even if only your partner’s name is on the title. If you’re not married, you have no automatic ownership claim, but you may have a civil claim based on what you’ve contributed, and you almost certainly have tenancy rights that stop your partner from throwing you out overnight.
If You’re Married, the Deed Doesn’t Decide
Marriage is the single biggest factor in determining your rights to a partner’s home. When a married couple divorces, the house is typically treated as marital property subject to division, even if only one spouse holds title. The name on the deed doesn’t control who gets what.1Justia. Separate vs. Marital Assets Under Property Division Law
How that division works depends on where you live. Forty-one states and the District of Columbia use equitable distribution, meaning a judge divides marital property in whatever way seems fair given the circumstances. The remaining nine states follow a community property model, which starts from the assumption that both spouses contributed equally to the marriage. Even in community property states, an exactly equal split isn’t guaranteed.2Justia. Community Property vs. Equitable Distribution in Property Division Law
A handful of states still recognize common-law marriage, which carries the same property rights as a ceremonial one. States currently allowing new common-law marriages include Colorado, Iowa, Kansas, Montana, Oklahoma, Rhode Island, Texas, and the District of Columbia. New Hampshire recognizes them for inheritance purposes only.3Social Security Administration. State Laws on Validity of Common-Law Non-Ceremonial Marriages Living together for a long time isn’t enough; you generally need to have intended to be married, held yourselves out as married, and lived together. If that describes you, the marital property rules above apply.
If You’re Not Married, You Have No Automatic Claim
None of the divorce protections apply to unmarried partners. If the relationship ends and only your partner’s name is on the title, you can’t walk into family court and ask for a share of the equity. You’d need to bring a separate civil claim, and the burden sits squarely on you to prove you deserve an interest in the property.
Courts have recognized a few theories that can get you there:
Constructive Trust
A constructive trust isn’t something you create. It’s a remedy a court imposes to prevent one person from unfairly benefiting at another’s expense. If you contributed a large sum toward the down payment with a shared understanding that you’d both own the home, a court might declare that your partner holds part of the property’s value in trust for you. The key ingredients are a financial contribution tied to the property and evidence that both of you expected shared ownership.
Unjust Enrichment
This claim argues that your partner received a real benefit from your contributions, knew about it, and would be unjustly enriched if allowed to keep the full value without compensating you. You have to show you provided something of value, your partner accepted or retained the benefit, and there’s no legitimate reason for them to keep it for free. Courts look at whether your contributions went beyond ordinary living expenses and actually built your partner’s equity.
Marvin and Cohabitation Agreements
The California Supreme Court’s decision in Marvin v. Marvin established that courts should enforce agreements between unmarried partners about property, as long as the agreement isn’t based solely on a sexual relationship.4Justia Law. Marvin v. Marvin Many states have adopted some version of this principle. Where recognized, a partner can argue that an express or implied agreement existed to share property, even without anything in writing.
What Contributions Actually Help
Winning any of these claims requires evidence. Vague recollections of who paid what don’t persuade courts. The stronger your documentation, the better.
- Direct payments toward the property, including the down payment, mortgage, property taxes, or homeowners’ insurance. Bank statements and wire transfer records are the strongest proof.
- Renovation and improvement costs that increased the home’s value. Keep receipts and before-and-after photos. Physical labor you performed, sometimes called sweat equity, counts too, though placing a dollar value on it is harder than documenting cash.
- Indirect contributions, like consistently covering utilities and groceries in a way that freed up your partner’s income to pay the mortgage. This is a weaker argument than direct property payments, but a clear pattern over months or years can help.
If you’re contributing financially to a home you don’t own, keep records as if you’ll someday need to prove it. You might.
Your Tenancy Rights, Even With Zero Ownership
Equity is one thing; keeping a roof over your head this week is another. Even if you have no claim to the home’s value, you probably can’t be removed overnight. After living in a partner’s home for an extended period, most jurisdictions treat you as a tenant at will or month-to-month tenant, regardless of whether you signed a lease or pay rent.
The most important consequence: your partner cannot change the locks, shut off utilities, or move your belongings to the curb. This kind of self-help eviction is illegal virtually everywhere. If your partner tries it, you can call law enforcement and may be entitled to damages in court, including reimbursement for hotel costs, lost property, and attorney’s fees.
Instead, your partner has to give you formal written notice and let the notice period expire before filing an eviction action. Notice periods vary, commonly running from three to 30 days or more depending on local law and how long you’ve lived there. Only after that can a judge issue an eviction order. The process buys time, which matters when a breakup turns sudden.
If There’s Abuse, Ownership Takes a Back Seat
If your partner is abusive, a different set of rules applies. In every state, victims of domestic violence can seek a protective order that can grant them exclusive possession of the shared home, even if the abuser holds the title. These orders can require the titled partner to leave and stay away.
Protective orders are available on an emergency basis, often within 24 hours, and don’t require you to file a separate lawsuit or prove an ownership interest. A local domestic violence hotline or the court clerk’s office can start the process. This is one area where the law specifically overrides property ownership in favor of physical safety.
Put It in Writing Before Anything Goes Wrong
The most reliable way to define your rights is to agree in writing while the relationship is good. A cohabitation agreement is a contract between partners that spells out financial responsibilities, what happens to property if the relationship ends, and whether the non-owner partner builds an equity interest over time. A well-drafted agreement can specify a compensation formula based on contributions, establish who stays in the home after a breakup, and address how shared debts get divided.
These agreements are generally enforceable as long as both parties signed voluntarily, made honest financial disclosures, and the terms don’t rest on an exchange of sexual services. Notarization and separate legal counsel for each partner make the agreement much harder to challenge later.
Verbal agreements are a weaker position. A spoken promise to share ownership might be enforceable in theory in some places, but proving it is an uphill fight. Most states’ Statute of Frauds requires contracts involving real estate to be in writing. Overcoming that bar means producing compelling evidence that you relied on the promise and acted on it: witness testimony, financial records showing large contributions made only because of the promise, or written communications referencing the agreement. Counting on a verbal promise to hold up in court is a gamble most people lose.
What Happens if Your Partner Dies
This is where being unmarried and off the title can be devastating. Under intestacy laws, which govern inheritance when someone dies without a will, only people related to the deceased by blood, marriage, or adoption can inherit. An unmarried partner receives nothing from the estate automatically, no matter how long you lived together. The home would pass to your deceased partner’s parents, children, siblings, or other relatives, who could then require you to leave.
The only protection is advance planning by the titled partner. A few tools can ensure the surviving partner inherits the home or at least has the right to stay:
- A will leaving the home directly to you. Without one, intestacy controls and you’re excluded.
- Joint tenancy with right of survivorship, which makes you the sole owner automatically when your partner dies, without probate.
- A transfer-on-death deed, allowed in more than 30 states, which names you as beneficiary and bypasses probate. The owner keeps control during their lifetime and can revoke it anytime.
- Beneficiary designations on retirement accounts, life insurance, and bank accounts, which pass directly to the named person.
If your partner hasn’t taken any of these steps, there’s no legal safety net. This is worth a direct conversation, especially if you’ve contributed financially or passed up other living arrangements to be there.
Two Financial Traps Most Couples Miss
Gift Tax on Mortgage Help
If one unmarried partner regularly pays the other’s mortgage, the IRS may treat those payments as taxable gifts. Any transfer of value where you don’t receive something of equal value in return counts as a gift under federal tax rules.5Internal Revenue Service. Frequently Asked Questions on Gift Taxes For 2026, the annual exclusion is $19,000 per recipient.6Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Stay below that in a calendar year and there’s no filing requirement. Go over, and the excess counts against your lifetime gift and estate tax exemption, requiring a gift tax return even if no tax is actually owed. Married couples don’t face this issue because gifts between spouses are generally unlimited and tax-free.
Insurance Gaps for Your Belongings
Your partner’s homeowners’ insurance policy probably doesn’t cover your personal belongings. Standard policies typically protect the named insured and family members in the household, which may not include an unmarried partner. If the home were burglarized or damaged by fire, your clothing, electronics, and furniture could be uninsured. A renter’s insurance policy fixes this and is usually less than $20 per month, with liability coverage included if someone is injured in the home. Check with your partner’s insurer to confirm whether you need to be listed on the homeowner’s policy, and don’t assume you’re covered just because you live there.