It starts with good intentions. Mom is getting older and needs help paying bills. The simplest solution: add an adult child to her bank account as a joint owner. The child can write checks, manage payments, and access funds if Mom becomes incapacitated. Problem solved — or so it seems.
Joint accounts are one of the most common tools families use to manage finances across generations. They are also one of the most misunderstood. What appears to be a convenient arrangement carries legal, tax, and relationship risks that most families do not discover until it is too late to undo the damage.
How Joint Accounts Actually Work
When you add someone as a joint owner on a bank account, you are giving them full legal ownership of the funds. This is not "authorized signer" access — it is co-ownership. Each joint owner has equal rights to deposit, withdraw, and close the account. Neither needs the other's permission to act.
More critically, when one joint owner passes, the account automatically transfers to the surviving owner through a legal mechanism called right of survivorship. This happens regardless of what the will says. If Mom's will says her assets should be split equally among three children, but the bank account is jointly held with only one child, that child inherits the entire account. The will does not apply.
According to the National Academy of Elder Law Attorneys, joint account disputes are among the top three causes of family litigation related to elder financial management.
Risk 1: Unintended Disinheritance
This is the most common and most damaging risk. Parents often add one child to their accounts for convenience, intending for that child to share the funds with siblings after the parent is gone. But legally, there is no obligation to share. The joint account passes by operation of law to the surviving owner, outside of probate and outside the will.
Even when the joint owner fully intends to distribute funds equally, problems arise. Other siblings may feel excluded, suspicious, or resentful. The joint owner faces a moral obligation with no legal enforcement. And if the joint owner has financial difficulties, creditors, or a divorce proceeding, the inherited funds may be at risk before they can be distributed.
Estate planning attorneys consistently advise against using joint accounts as a substitute for proper estate planning. The convenience is real. The risks are larger.
Risk 2: Exposure to the Joint Owner's Creditors
Once someone is a joint owner of an account, the funds in that account may be accessible to their creditors. If the joint owner is sued, goes through a divorce, or files for bankruptcy, the parent's money in the joint account could be subject to claims. Courts in many states treat joint account funds as belonging equally to both owners, regardless of who deposited the money.
This risk is particularly acute when the joint owner has business liabilities, significant debt, or a troubled marriage. The parent may have spent decades accumulating savings, only to see them exposed to risks they never anticipated and cannot control.
Risk 3: Gift Tax Complications
Adding an adult child to a bank account can trigger gift tax issues. The IRS may treat the creation of a joint account as a taxable gift if the non-contributing owner withdraws funds. While the annual gift tax exclusion (currently $18,000 per person in 2024) may cover smaller accounts, larger balances can create reporting obligations and potentially reduce the parent's lifetime gift tax exemption.
Many families are unaware of these tax implications because the creation of a joint account feels like an administrative action, not a financial transaction. But the IRS views it differently — and ignorance of the rules does not prevent the consequences.
Risk 4: Medicaid and Long-Term Care Complications
If a parent eventually needs Medicaid to cover long-term care costs, the existence of a joint account can create significant complications. Medicaid looks back at financial transactions for a period of typically five years (the "look-back period"). Adding a child to an account, or the child withdrawing funds from the account, can be treated as an improper transfer of assets — resulting in a penalty period during which Medicaid coverage is denied.
The consequences can be severe: the parent needs care, the funds have been distributed or claimed by the joint owner, and Medicaid will not cover the gap. Families in this situation face impossible choices that could have been avoided with proper planning.
Better Alternatives
Fortunately, there are alternatives that provide the convenience of a joint account without the risks:
- Power of Attorney (POA). A durable financial power of attorney allows the designated person to manage the parent's accounts without being an owner. The agent can pay bills, manage investments, and handle financial matters — but the funds remain the parent's property and are not exposed to the agent's creditors.
- Payable-on-Passing (POD) designation. This allows the account to pass directly to named beneficiaries without probate, without joint ownership, and without the risks described above. The beneficiary has no access to the account during the owner's lifetime.
- Revocable living trust. For larger estates, a trust provides maximum control and flexibility. The trustee manages the funds according to the trust's terms, and the assets pass to beneficiaries without probate and according to the grantor's exact wishes.
- Authorized signer status. Some banks allow a parent to add an authorized signer to an account without making them an owner. The signer can conduct transactions but does not have ownership rights. This is the closest alternative to a joint account with significantly less risk.
What to Do If You Already Have a Joint Account
If you have already added a child to a joint account, do not panic — but do take action. Consult with an estate planning attorney to understand the specific implications for your situation. In many cases, the account can be restructured with a POD designation or a power of attorney that achieves the same practical goals with far less risk.
The most important step is to understand what you have and to make deliberate choices about how your assets are structured. Joint accounts are not inherently bad — they are appropriate for spouses in many cases and for specific financial strategies. But they are almost never the right tool for parent-child financial management, and the risks they carry deserve careful, informed consideration.
