Most homes with two names on the deed are not owned the way their owners assume. The words the deed uses to join those names decide what happens at the first death — and joint tenancy with right of survivorship is the strictest of those wordings: equal shares, and a transfer that happens by itself. It sits in the same ownership family as the life estate and the transfer on death deed — all three move a home at death outside probate — but each moves it on very different terms during life. This page is general information about how the form works, not legal advice; the law of the state where the home sits is the authority for any actual deed.
A joint tenancy deed names two or more owners as joint tenants with right of survivorship. Each owns an equal, undivided interest in the entire home: with two owners there is no 'my half of the house' — each holds the whole property together with the other. Lawyers test the form against the traditional four unities: the interests were acquired at the same time, under the same title, in equal interest, with an equal right of possession. Break one at creation and most states read the deed as a tenancy in common instead. The survivorship right is what the form is bought for: at a joint tenant's death, their interest vanishes into the survivors' shares automatically, by operation of law — no probate case, no executor, and no power in the deceased owner's will or trust to send that share anywhere else. A will only controls what a person still owns at death, and a joint tenant, at death, owns nothing separable.
Tenancy in common is the default in most states when a deed names co-owners without survivorship words: shares may be unequal, each owner can sell, gift or borrow against just their share, and each share passes at death through that owner's own will or estate. Joint tenancy trades that flexibility for the automatic transfer — equal shares only, and heirs of a deceased owner take nothing from the home. Tenancy by the entirety is the married-only variant recognized in roughly half the states: the couple is treated as a single owner, neither spouse can transfer or sever alone, and in many of those states the home is shielded from creditors of only one spouse. The differences are not paperwork trivia: they decide whether a co-owner's child inherits, whether a co-owner's creditor can force a sale, and whether one owner can change the plan alone — which is why the form is chosen deliberately, in the deed, with the state's exact wording.
A joint tenancy is strong at death but breakable during life. A joint tenant can generally sever it by transferring their interest — in many states a recorded deed from the owner to themselves is enough — and the transferred share becomes a tenancy in common: sellable, and passable under that owner's will, with no survivorship over it. What generally does not work is a secret severance written into a will, because the will has nothing to act on once survivorship has already moved the interest. When a joint tenant does die, the survivor already owns the whole home in law; the remaining work is record-keeping — an affidavit of survivorship with a certified death certificate, recorded with the county, so the title shows why one name is gone before any later sale, refinance or title search.
Putting another person on a home as a joint tenant feels like a note about the future; in law it is a present gift of a real ownership interest. From that day, the new co-owner's creditors, lawsuits or divorce can reach the home, the original owner generally cannot undo it alone, and the gift can carry tax-reporting consequences. The tax picture at death also depends on the relationship: a surviving spouse generally receives a stepped-up basis on at least the deceased spouse's share of the home, while a non-spouse survivor's step-up is generally limited to the deceased owner's portion — stated generally here, under the stepped-up basis concepts of the Internal Revenue Code, and not as tax advice. For many families a transfer on death deed or a trust reaches the same probate-free ending while keeping full control during life; which instrument fits is a local estate attorney's call, made before the deed is signed — and whatever form a home is held in, the owners on the deed are the owners whose facts Homeowner HQ tracks the home under.
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It is a form of co-ownership, usually written into the deed itself as 'joint tenants with right of survivorship' or JTWROS, in which two or more people each own an equal, undivided interest in the whole home — nobody owns a particular half or a particular room. The survivorship half of the name is the point: when one joint tenant dies, their interest does not become part of their estate and does not pass under their will; it is absorbed automatically by the surviving joint tenants, by operation of law, outside probate. Tradition requires the four unities for a valid joint tenancy — the owners took their interests at the same time, under the same title, in equal shares, with an equal right to possess the whole property — and the deed must say the survivorship intent in words, because in most states co-ownership without those words defaults to a tenancy in common instead.
Tenancy in common is the flexible default: shares can be unequal — 70/30 is fine — each owner can sell, gift or mortgage just their share, and at death each share passes through that owner's own will or estate, with no survivorship. Joint tenancy is the rigid form: equal shares only, and the death of an owner moves their interest to the survivors, never to their heirs. Tenancy by the entirety is a married-couples-only form recognized in roughly half the states, which treats the couple as one owner: neither spouse can transfer or sever alone, and in many of those states one spouse's individual creditors cannot reach the home, a protection joint tenancy does not give. Which form a deed creates is decided by the deed's wording and the state's law, not by what the owners informally intended.
Yes — during life, a joint tenant can generally sever the joint tenancy by transferring their own interest, in many states even to themselves by a recorded deed; that share becomes a tenancy in common, the survivorship right over it ends, and it can then pass under that owner's will. Severing generally cannot be done secretly in a will — a will speaks only at death, and at death a joint tenant has nothing left to give, which is why joint tenancy cannot be used to leave the home to someone else. After a joint tenant dies, the survivor's ownership is already complete by law, but the title record still needs cleaning: the survivor generally records an affidavit of survivorship with a certified copy of the death certificate at the county recorder, so a later sale or refinance shows a clean chain of title. Two cautions belong in the file: adding someone as a joint tenant is a present gift of a real interest, with that person's creditors able to reach it, and the tax basis result differs by relationship — a surviving spouse generally receives a step-up on at least the deceased spouse's half — so the titling choice belongs in a conversation with a local estate attorney, not in a form line.