A concurrent estate is ownership of the same property by two or more people at the same time, and in the United States it takes one of three forms: joint tenancy, tenancy in common, or tenancy by the entirety. The form you choose determines what happens when a co-owner dies, whether a creditor can reach the property, how the IRS treats gifts and basis, and whether any single owner can sell their share without the others’ consent. Letting the deed default without thinking through those consequences can cost a family tens of thousands of dollars in unnecessary taxes, probate fees, or lost creditor protection.
Joint Tenancy
Joint tenancy’s defining feature is the right of survivorship. When one owner dies, their share automatically passes to the remaining owners outside of probate, by operation of law. The deceased owner’s will has no effect on the transfer. If three people hold property as joint tenants and one dies, the surviving two each own half; when the second dies, the last survivor owns the entire property outright.
A valid joint tenancy requires the four unities. All owners must receive their interests at the same moment (time), through the same instrument (title), in equal shares (interest), with the right to use the whole property (possession). Miss any of the four at the start and no joint tenancy exists. Break one later and the joint tenancy converts into a tenancy in common.
Most states treat tenancy in common as the default when a deed names multiple owners without specifying the ownership type. If you intend a joint tenancy, the deed must say so explicitly, with language like “as joint tenants with right of survivorship and not as tenants in common.” Ambiguous deeds almost always get interpreted as tenancies in common, which eliminates survivorship entirely.
A joint tenancy can also be severed on purpose. The cleanest method is for one joint tenant to convey their interest to a third party, which breaks the unities of time and title and leaves the new owner as a tenant in common with the remaining joint tenants. Modern courts in most states also let a joint tenant deed their interest from themselves as joint tenant to themselves as tenant in common, with the severance taking effect on recording. Informal intentions do not sever anything. If you want out, record a deed.
Tenancy in Common
Tenancy in common is the most flexible form and, in most states, the default when a deed is silent. There is no right of survivorship. When one owner dies, their share passes through their estate, either under their will or under the state’s intestacy laws, and the deceased owner’s heirs or beneficiaries inherit, not the other co-owners.
The only required unity is possession. Every owner has the right to use the entire property, but ownership shares do not have to be equal. One person can own 70% while another owns 30%. Owners can also acquire their interests at different times and through different deeds, which makes tenancy in common the natural fit for investment groups, business partners, and unrelated individuals buying together.
Each owner’s share is independently transferable. A tenant in common can sell, mortgage, or give away their interest without the other owners’ consent, and the buyer steps into the seller’s position with the same percentage. That flexibility cuts both ways. You could end up sharing property with someone you never chose.
Tenancy by the Entirety
Tenancy by the entirety is reserved for married couples and is recognized in roughly 25 states plus the District of Columbia. It carries the same right of survivorship as joint tenancy but adds a critical restriction: neither spouse can unilaterally sell, transfer, or encumber the property without the other’s consent. The couple is treated as a single owner.
The biggest practical advantage is creditor protection. In most states that recognize this form, a creditor holding a judgment against only one spouse cannot force a sale of the property or place a lien on it. The property belongs to the marital unit, not to either spouse individually, so individual debts generally cannot reach it. For couples where one spouse runs a business or carries professional liability risk, this protection is often the single most important reason to hold property as tenants by the entirety rather than as joint tenants.
The shield has one major hole. In 2002, the U.S. Supreme Court held that a federal tax lien can attach to property held as tenants by the entirety even when only one spouse owes the tax debt.1Cornell Law School. United States v. Craft A spouse’s individual rights in the property — including the right to use it, receive income from it, and receive half the proceeds on sale — were enough to count as “property or rights to property” under the federal tax lien statute. In practice the IRS treats the delinquent spouse’s interest as worth half the property’s value and evaluates lien foreclosure case by case, weighing the impact on the non-liable spouse.2Internal Revenue Service. Federal Tax Liens The agency is more likely to levy a bank account held as entireties property than to force the sale of a home.
Divorce automatically converts a tenancy by the entirety into a tenancy in common, stripping away both survivorship and creditor protection. The death of one spouse transfers the entire property to the survivor. Married couples who want to change the structure while still married must both agree and execute a new deed; one spouse acting alone cannot alter the arrangement.
How To Choose Among the Three
Three questions usually settle the decision. First, do you want the property to pass automatically to the surviving co-owners when one of you dies, or should it pass through the deceased owner’s estate? Automatic transfer points to joint tenancy or, for a married couple, tenancy by the entirety. Passage through the estate points to tenancy in common.
Second, are the co-owners married, and does your state recognize tenancy by the entirety? If yes to both, the entireties form generally offers the strongest package for a married couple: survivorship plus protection against one spouse’s individual creditors.
Third, do the co-owners need equal shares and matching rights, or do they need the flexibility to own in different percentages and transfer independently? Equal and matched points to joint tenancy. Different percentages or independent transfer points to tenancy in common.
Rights and Duties of Co-Owners
Shared ownership comes with obligations that catch many co-owners off guard. The rules shift depending on who is paying, who is occupying, and whether anyone has been shut out.
Sharing Expenses
Co-tenants must contribute to essential carrying costs — property taxes, mortgage payments, and insurance — in proportion to their ownership shares. A co-owner who pays more than their share can demand reimbursement from the others right away, without waiting for a sale or partition. The math shifts when one co-owner lives in the property alone. Courts often treat the occupying owner’s rent-free use as an offset against the expenses they have paid, so they can only recover costs that exceed the fair rental value of their occupancy.
Repairs and Improvements
Necessary repairs, the kind required to keep the property from deteriorating, generally give the paying co-owner a right to reimbursement from the others. Improvements are different. If one owner builds a deck or remodels a kitchen without the others’ approval, courts typically will not force the other owners to chip in. The improving owner may get credit for any increase in value when the property is sold or partitioned, but they carry the risk that the improvement does not add as much value as it cost.
Rental Income and Ouster
Any co-tenant who collects rental income must share it with the other owners in proportion to their ownership interests. The harder question is when one co-owner simply occupies the property and the others do not. Under the traditional rule, each co-tenant has equal rights to possess the whole, so the non-occupying owners generally cannot demand rent. The exception is ouster. If the occupying owner actively excludes or denies access to the others, the excluded owners can sue for their share of fair rental value. Ouster requires more than one person happening to live there; there must be a clear refusal to allow the other owners access.
Tax Implications
The form of concurrent ownership affects federal taxes when you create it, while you hold it, and when one owner dies.
Gift Tax When Adding a Co-Owner
Adding someone other than your spouse to a deed is treated as a gift for federal tax purposes. The value is generally measured by the interest you transferred: add one person as a 50% co-owner to a property worth $400,000, and you have made a $200,000 gift.3Office of the Law Revision Counsel. 26 USC 2511 – Transfers in General The first $19,000 of gifts to any one person in 2026 is excluded from gift tax, so only the amount above that threshold counts against your lifetime exemption.4Internal Revenue Service. Frequently Asked Questions on Gift Taxes You must file a federal gift tax return for any gift above the annual exclusion, even if no tax is owed thanks to the lifetime exemption.5Office of the Law Revision Counsel. 26 USC 2503 – Taxable Gifts
The 2026 lifetime gift and estate tax exemption is $15,000,000 per person, following an increase enacted under the One, Big, Beautiful Bill signed into law on July 4, 2025.6Internal Revenue Service. What’s New – Estate and Gift Tax Gifts to a spouse who is a U.S. citizen are generally unlimited and tax-free under the marital deduction, so adding a spouse to a deed typically has no gift tax consequence.
Stepped-Up Basis at Death
When a joint tenant or tenant by the entirety dies, the surviving owner’s cost basis in the property is partially adjusted. The half that belonged to the deceased owner receives a stepped-up basis equal to its fair market value at the date of death.7Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent The surviving owner’s original half keeps its old basis. If a couple bought a home for $200,000 and it is worth $500,000 when one spouse dies, the survivor’s new basis is $350,000: the original $100,000 on their half plus a $250,000 stepped-up basis on the deceased spouse’s half.
Community property states offer a better deal. In the nine states that recognize community property, both halves of the property receive a full step-up when one spouse dies, not just the decedent’s half.7Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent Using the same numbers, the survivor’s basis in a community property state would be $500,000. Married couples in community property states should think carefully before titling property as joint tenants, since doing so can cost them that full step-up.
Splitting Mortgage Interest and Property Tax Deductions
Unmarried co-owners who share a mortgage can each deduct only the portion of mortgage interest they actually paid, not their ownership percentage. The co-owner who receives Form 1098 from the lender deducts their share on Schedule A, line 8a, and must inform the other borrowers of their share of the interest. Any co-owner who did not receive the 1098 must attach a statement to their paper return showing the total interest paid, their portion, and the name and address of the person who received the form.8Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction Property taxes follow the same logic. Each co-owner deducts what they actually paid.
Creating the Deed
Setting up concurrent ownership starts with a properly drafted deed. The deed must include the full legal names of every new owner exactly as they should appear in public records, a legal description of the property drawn from the prior deed or title records, and explicit vesting language identifying the type of concurrent estate: “as joint tenants with right of survivorship and not as tenants in common,” “as tenants in common,” or “as tenants by the entirety.” Omitting or botching this language is where most problems start, because courts default to tenancy in common when the intent is ambiguous.
Every grantor must sign in front of a notary public, and the deed must then be recorded with the county recorder or clerk’s office. Notary and recording fees vary by state and county but are modest. An unrecorded deed is still valid between the parties, but recording is what protects your ownership against later claims by third parties.
Ending Concurrent Ownership
Co-owners who want out have two paths: a voluntary transfer or a court-ordered partition. The voluntary route is simpler and cheaper. One or more owners execute a new deed conveying their interest to the remaining owners or to a buyer, record it, and the concurrent estate is restructured or dissolved.
When co-owners cannot agree, any one of them can file a partition action in court. Courts handle partition in two ways. Partition in kind physically divides the property into separate parcels, which works for large tracts of land but is rarely practical for a single house or small lot. More often, the court orders a partition by sale, and the proceeds are divided among the owners according to their shares after court costs, attorney fees, and any credits owed to owners who paid more than their share of taxes or repairs. Partition is expensive. Filing fees typically run $350 to $500, and total legal expenses can reach $5,000 to $20,000 or more depending on the property’s value and how aggressively the other owners contest the action. Any co-owner who covered necessary repairs or a disproportionate share of carrying costs can seek credit from the sale proceeds, so keep detailed records of every payment from the start.