When two or more people share legal title to a house, the co-ownership of a home can take one of four forms: tenancy in common, joint tenancy with right of survivorship, tenancy by the entirety, or community property. The form printed on your deed decides who inherits your share, whether a co-owner’s creditors can force a sale, how much of the gain you can shield from tax, and how easily you can walk away. Choosing the wrong one can cost surviving owners tens of thousands of dollars or expose the home to debts they had nothing to do with.
The Four Ways to Co-own a Home
Each structure treats death, debt, and transfers differently. Here is what actually separates them.
Tenancy in Common
This is the default in most states when the deed does not say otherwise. Each owner holds a separate, undivided share, and the shares do not have to be equal. One person can own 60 percent while two others own 20 percent each, and every owner still has the right to use the whole home.
There is no right of survivorship. When a tenant in common dies, their share passes through their will or estate plan, not to the surviving co-owners. Any co-owner can also sell, gift, or mortgage their share without asking the others. That means the person you started out with could hand their interest to a stranger you have never met.
Joint Tenancy With Right of Survivorship
Joint tenants hold equal shares, and when one dies, that share automatically transfers to the surviving owners without going through probate.1Justia. Joint Ownership With Right of Survivorship and Legally Transferring Property Avoiding probate is the main reason people pick this form.
The catch is that any owner can sever the joint tenancy by transferring their share. Once that happens, the transferred portion becomes a tenancy in common, and the right of survivorship for that share is gone. If only two people own the home and one sells, the joint tenancy ends entirely.
Tenancy by the Entirety
This form is available only to married couples, and only in about half the states. It carries the same automatic inheritance as joint tenancy but adds a critical protection: neither spouse can sell, mortgage, or transfer the interest without the other’s consent.2Legal Information Institute. Tenancy by the Entirety
The property is treated as belonging to the marriage rather than to either spouse individually. If only one spouse owes a debt, the creditor generally cannot force a sale or place a lien on the home. That shield disappears if both spouses owe the same debt or the couple divorces.
Community Property
Nine states use a community property system: Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin.3Internal Revenue Service. Publication 555 – Community Property Most assets a couple acquires during the marriage belong equally to both spouses, no matter whose name is on the title. Some community property states also offer a survivorship option so the deceased spouse’s half passes directly to the survivor. The biggest advantage comes at death, and it lives in the tax section below.
Setting Up Co-ownership on the Deed
Co-ownership usually begins at purchase, when the deed names everyone taking title. The deed has to spell out the form. Language like “as joint tenants with right of survivorship” or “as tenants in common” is what courts rely on. If the deed says nothing, most states fall back to tenancy in common.
Co-ownership can also arise through inheritance, when a property passes to multiple beneficiaries, or through a gift to more than one person. Whatever document creates the transfer should state the intended structure. Vague language leads to disputes that are expensive to unwind.
You can change the form later by recording a new deed. Getting the wording right matters more than the recording fee, and an attorney who knows your state’s property rules is worth the cost.
Sharing the Costs and the House
Every co-owner can use and occupy the whole property, not just a portion matching their share. No one can lock another owner out or claim a room as exclusively theirs without a separate agreement.
Mortgage payments, property taxes, insurance, and repairs are shared in proportion to ownership. Equal shares mean equal splits. The trouble starts when someone stops paying. The lender does not care how you divided things among yourselves; if the loan goes unpaid, foreclosure wipes out everyone’s equity. Co-owners who cover a shortfall can seek reimbursement from the non-paying owner, but that usually means going to court.
Rental income follows the same rule. If the home is rented, income is split by ownership share, and a co-owner who pockets all the rent can be held accountable to the others.
Whether a Co-owner’s Creditors Can Take the Home
Creditor exposure depends entirely on the form of ownership.
With tenancy in common or joint tenancy, a creditor can put a lien on the debtor-owner’s share and file a partition action to force a sale, even if the other owners object. In a joint tenancy, that also severs the right of survivorship for that share.
With tenancy by the entirety, creditors of one spouse generally cannot reach the property, as long as only one spouse owes the debt and the marriage is intact.2Legal Information Institute. Tenancy by the Entirety
Community property rules vary. Some states allow a creditor to reach community assets for one spouse’s debt; others protect the non-debtor spouse’s half.
This is why married couples in states that allow it often pick tenancy by the entirety over joint tenancy. The protection against one spouse’s individual debts is real.
Taxes for Co-owners
Co-ownership affects taxes in ways most buyers do not think about until it is too late to plan around them.
Mortgage Interest and Property Taxes
Unmarried co-owners each deduct only what they actually paid. The IRS requires each borrower to report their own share of the interest.4Internal Revenue Service. Publication 936 – Home Mortgage Interest Deduction If only one co-owner’s name appears on the Form 1098, the others should attach a statement to their return showing what they paid. Property tax deductions work the same way.
Capital Gains Exclusion When You Sell
A single seller can exclude up to $250,000 of gain on a primary residence. A married couple filing jointly can exclude up to $500,000, as long as at least one spouse meets the ownership test and both meet the use test (living in the home for at least two of the five years before the sale).5Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence Unmarried co-owners each get their own $250,000 exclusion on their share of the gain, provided each one independently satisfies the ownership and use requirements.
Stepped-Up Basis at Death
This is where the form of co-ownership makes the biggest financial difference. When someone dies, their assets generally receive a stepped-up basis, meaning the tax basis resets to fair market value at the date of death. A higher basis means less taxable gain when the property is eventually sold.
Under joint tenancy or tenancy in common, only the deceased owner’s share gets the step-up. If two people hold a home as joint tenants and one dies, half the property gets a new basis and the survivor’s half keeps its original basis.
Under community property, both halves receive a stepped-up basis when one spouse dies, not just the deceased spouse’s half.6Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent For a couple whose home has appreciated $400,000, the full step-up at one spouse’s death can eliminate the entire taxable gain. In a joint tenancy state, the survivor would still owe tax on half that appreciation at sale. This one difference is often worth more than every other co-ownership consideration combined.
Gift Tax When You Add Someone to the Deed
Adding a name to your deed or transferring a portion of your ownership counts as a gift. If the value of the transferred interest is more than $19,000 in 2026, you have to file a gift tax return (Form 709).7Internal Revenue Service. Frequently Asked Questions on Gift Taxes You probably will not owe tax because of the lifetime exemption, but the filing requirement surprises people. Transfers between spouses are generally exempt from gift tax entirely.
Putting a Co-ownership Agreement in Writing
The deed tells the world who owns the home and in what form. A co-ownership agreement is a private contract that covers everything the deed does not. Without one, you are relying on state law and courtrooms to sort out disputes, and neither is cheap or fast.
A solid agreement should cover:
- Ownership shares, how mortgage and maintenance costs are split, and what happens if someone falls behind.
- Who lives in the property, whether it can be rented out, and any use restrictions.
- How a co-owner can sell their interest, whether the others get a right of first refusal, and how a buyout is priced and timed.
- Whether disagreements go to mediation or arbitration before anyone files suit.
- What happens to a co-owner’s share if they die or become incapacitated, especially when the deed form does not include survivorship rights.
Friends and family co-buying property tend to skip this step because the conversation feels awkward. It is far more awkward in a courtroom two years later. Get it in writing before closing.
Getting Out of Co-ownership
The cleanest exit is for everyone to agree to sell. Proceeds are divided by ownership share, adjusted for any unequal contributions to the mortgage, improvements, or other costs documented in the agreement.
A buyout is the next simplest route: one co-owner buys another’s share, either taking sole ownership or leaving a smaller group in place. Setting the price usually calls for an independent appraisal.
When co-owners cannot agree, any of them can file a partition action. Courts handle these two ways. Partition in kind physically divides the property so each owner ends up with a separate piece; courts prefer it because no one is forced to sell, but it rarely works for a single home on a standard lot. Partition by sale means the court orders the property sold and splits the proceeds. That is the usual outcome for residential property because a house cannot be meaningfully cut up. The owner asking for a sale generally has to show that a physical division would cause substantial harm.
Partition is expensive, adversarial, and slow, and court-ordered sales tend to bring less than full market value. If things have reached that point, a negotiated buyout almost always leaves everyone better off.
Co-owners can also change the arrangement by recording a new deed. A single joint tenant can deed their interest to themselves as a tenant in common and sever the joint tenancy without the other owner’s consent. Because the tax and legal consequences depend on the specific transfer, any change in ownership form is worth running past an attorney before you sign.