A will does not override a joint bank account
When one owner of a joint account dies, the surviving owner automatically inherits the full balance — the account passes directly to them by operation of law, regardless of what the will says. This happens because joint accounts are set up with what's called survivorship rights, which means the surviving owner's claim to the money exists outside the will process entirely.
This can create real problems if the person who died intended the money to go somewhere else. A will controls only the assets that are part of the probate estate — the property the person owned alone. A joint account is not part of that estate, so the will has no say over it. The bank's contract with you about the account is separate from your will, and the bank follows the contract, not the will.
Key Takeaways
- Joint accounts with survivorship rights pass automatically to the surviving owner when one owner dies, and a will cannot change this.
- The surviving owner receives the full account balance when ready, without waiting for probate or following the instructions in a will.
- If the person who died wanted the money to go to someone else, adding that person as a joint owner during their lifetime is the only way to may support it happens.
- Some states allow a different type of joint account without survivorship, but you have to specifically request it — the default is survivorship.
- If you suspect someone added themselves to an account improperly before the owner died, you may be able to challenge it in court, but this is expensive and difficult.
How survivorship rights work
When you open a joint account at a bank, the account is set up with survivorship rights unless you specifically ask for something different. This means the bank's contract with you includes a rule: whichever owner survives the other gets the whole account. The bank does not care what the will says — the will is a separate legal document that has nothing to do with the bank's contract.
The moment one owner dies, the surviving owner's ownership becomes complete. The bank will freeze the account temporarily while it processes the death, but once it confirms the death certificate, it unfreezes the account and the surviving owner can withdraw the money. This usually takes a few days to a few weeks, depending on the bank. The surviving owner does not have to wait for probate — the legal process where a court reviews the will and distributes the estate — because the account never enters probate in the first place.
This is why joint accounts are sometimes called non-probate assets. They pass outside the will system entirely. The surviving owner's right to the money comes from the bank's agreement, not from any court or legal process.
What the will cannot do
A will can only control property that the person owned alone at the time of death. If you own a house by yourself, the will says who gets it. If you own a car by yourself, the will says who gets it. But a joint bank account is not owned by one person — it is owned by two people together, and the surviving owner's share is already theirs by the survivorship agreement.
Some people do not realize this and write instructions in their will about a joint account, expecting those instructions to be followed. They are not. The executor of the will — the person named to carry out the will's instructions — has no power over a joint account. If the will says "give my half of the joint account to my daughter," that instruction is ignored. The surviving joint owner keeps the whole account.
This is one reason why joint accounts can create conflict in families. If the person who died wanted the money split among several children, but added only one child as a joint owner, that one child gets everything and the will cannot override it. The other children have no legal claim to the account, even if the will says otherwise.
When joint accounts are set up without survivorship
Some states allow you to set up a joint account without survivorship rights, though this is not the default. If you set up an account this way, when one owner dies, their share becomes part of their probate estate and the will controls where it goes. The surviving owner keeps only their own share.
You have to ask the bank specifically for this arrangement, and you have to do it when you open the account — you cannot change it later without closing the account and opening a new one. The bank will ask you to sign a form stating that you do not want survivorship rights. If you did not sign such a form, your account almost certainly has survivorship rights.
Different states call this different things. Some call it a "tenancy in common" account, others call it a "non-survivorship joint account." The important thing is that it is not the standard setup. If you want this arrangement, you have to request it explicitly and get it in writing from the bank. Ask your bank directly whether they offer this option and what they call it.
What happens if you suspect the account was set up improperly
Sometimes a family member adds themselves to an older person's account without the older person's knowledge or consent, or pressures them into it. If you believe this happened, you may be able to challenge it in court, but this is difficult and expensive.
You would have to file a lawsuit against the surviving joint owner, claiming that they committed fraud or undue influence — meaning they tricked or pressured the account owner into adding them. You would need evidence: emails, text messages, testimony from people who were present, medical records showing the account owner had dementia, or a pattern of the surviving owner isolating the account owner from family. The court would have to agree that the account owner did not freely consent to adding the surviving owner.
Even if you win, the process takes months or years and costs thousands in legal fees. Many families cannot afford to pursue this, which is why these situations often go unresolved. If you are concerned about this happening to someone you know, the best prevention is to help them understand their account options and encourage them to set up their accounts the way they actually want them.
How to prevent problems with joint accounts
If you want money to go to specific people after you die, the safest approach is to name them as beneficiaries on the account itself, rather than making them joint owners. Many banks allow you to name a "payable on death" beneficiary or "transfer on death" beneficiary. When you die, the money goes directly to that person, just like with a joint account, but the person has no access to the money while you are alive.
This protects you because the beneficiary cannot withdraw money without your permission, and it protects them because they do not have to worry about being sued by other family members. The bank handles the transfer automatically. You can name multiple beneficiaries and decide what percentage each one receives.
You can also set up a trust and name it as the account owner, then name the people you want to receive the money in the trust document. This gives you more control over when and how the money is distributed, and it keeps the account out of probate. A trust is more complicated to set up than a beneficiary designation, but it is useful if you have specific wishes about how the money should be used.
Talk to your bank about what options they offer. Different banks have different names for these arrangements, but most banks offer at least a payable-on-death option. Ask to see the forms and understand exactly how each one works before you decide.
Frequently Asked Questions
Can I change my will to override a joint account after I set it up?
No. Once the account is set up with survivorship rights, the will has no power over it. The only way to change where the money goes is to remove the joint owner and set up a new arrangement — either name a different joint owner, name a beneficiary, or put the account in a trust. You cannot do this through the will alone.
What if the joint owner dies first?
If the joint owner dies before you, nothing happens to the account. You still own it and can use it normally. The joint owner's death does not trigger any transfer. Survivorship only works one direction: when the account owner dies, the surviving joint owner gets it. If the joint owner dies first, the account owner keeps the whole account.
Does the surviving joint owner have to pay taxes on the money?
This depends on the amount and the relationship between the owners. If the owners were spouses, there is usually no tax. If they were not spouses, the surviving owner may owe federal estate tax if the total estate is very large, but this applies only to estates worth more than a certain threshold, which varies by year. State taxes also vary. Talk to a tax professional or accountant about your specific situation.
Can the executor of the will take money from the joint account to pay debts?
Generally no. The joint account is not part of the probate estate, so the executor has no authority over it. However, if the person who died left large debts and not enough other assets to pay them, creditors might try to go after the joint account. The surviving joint owner would have to defend against this claim. This is rare, but it is another reason to think carefully about who you make a joint owner.
What if I want to add someone to my account but I am worried they will take the money after I die?
Do not make them a joint owner. Instead, ask your bank about a "payable on death" or "transfer on death" beneficiary option. This lets you name someone to receive the money after you die without giving them access while you are alive. If you want them to help you manage the account now, ask the bank about a power of attorney arrangement instead, which lets them act on your behalf without owning the account.