Joint tenancy is co-ownership with a built-in transfer at death. Owners hold equal undivided interests in the same property, and when one dies their interest passes automatically to the surviving joint tenants. No probate, no will, no court order — the transfer happens by operation of the title itself.
The convenience is real, which is why couples hold houses and bank accounts this way as a matter of course. Assets pass to the survivor immediately, without waiting on an executor's appointment, at a moment when access to money is often urgent.
The risks are less visible. A joint tenant is a present owner, not a beneficiary-in-waiting: they can generally reach the asset now, their creditors may be able to as well, and adding one can carry gift tax and capital gains consequences. Survivorship also overrides your will entirely, so an account you added a child to for convenience belongs to that child alone at your death, whatever your will says about equal treatment.
It also fits some assets badly. Self-custodied crypto has no title registry to record a joint tenancy on, so sharing a wallet means sharing keys — which is not co-ownership in any enforceable sense but simply giving someone the ability to move everything. Requirements for creating and severing joint tenancies vary by state.
Frequently asked
- Does joint tenancy override my will?
- Yes, completely. Survivorship operates on the property at the instant of death, before the will has anything to act on. If your will divides everything equally among three children but the house is held jointly with one of them, that child takes the house outright and the other two share what remains. This is one of the most common ways a carefully drafted will produces an unintended result.
- Can I hold crypto in joint tenancy?
- Not meaningfully, for self-custodied assets. Joint tenancy is a form of legal title recorded somewhere — a deed, an account registration — and a private key has no registry behind it. Sharing a seed phrase gives the other person full unilateral control while you are alive, which is a much larger concession than co-ownership. Some exchanges support joint accounts or beneficiary designations; those are the workable routes, alongside a trust.
- Is adding my child to my bank account a good idea?
- It solves an access problem and creates several others. The child becomes a present co-owner: the funds are exposed to their creditors and divorce proceedings, they can withdraw everything without your consent, and at your death the entire balance is theirs regardless of what your will says about splitting it. A durable power of attorney or a payable-on-death designation usually achieves the intended purpose without those consequences.