You can add your child to your bank account in one of three ways: as a joint owner, as an authorized signer, or through a custodial account set up for a minor. Adding a child to your bank account sounds like a simple errand, but the option you pick decides who legally owns the money, who can take it, what happens when you die, and whether the account can hurt financial aid, government benefits, or expose the balance to a creditor. Work out which arrangement fits your situation before you walk into the branch.
The Three Ways to Add a Child
Joint Owner
A joint owner has equal legal standing on the account, usually through joint tenancy with right of survivorship. Either owner can deposit, withdraw, or drain the balance without the other’s permission, and in most cases either can close the account alone.1Consumer Financial Protection Bureau. A Joint Checking Account Owner Took All the Money Out and Then Closed the Account Without My Agreement. Can They Do That? When one owner dies, the survivor takes the whole account automatically, outside of probate, and that transfer can override what a will says.
Authorized Signer
An authorized signer can make deposits, withdrawals, and other transactions but owns none of the money. They can’t close the account, and their access ends when the account owner dies. This is the option that gives your child working access without changing legal ownership.
Custodial Account (UTMA/UGMA)
For a younger child, many parents open a custodial account under the Uniform Transfers to Minors Act or the Uniform Gifts to Minors Act. You manage the account as custodian under a fiduciary standard, but the money legally belongs to the child, and any deposit is an irrevocable gift. Full control passes to your child at an age set by state law, typically 18 or 21, though some states let the custodian push the transfer age as high as 25 or beyond.2HelpWithMyBank.gov. What Is a UGMA or UTMA Account?
Can You Add a Minor?
Adult children, meaning 18 and older, can be added to almost any existing account as a joint owner or authorized signer. They’ll need to be present, in person or through a verified online process, and provide their own ID.
Minors are a different story. Because they generally lack the legal capacity to contract, most banks won’t add a minor as a full joint owner on a standard checking account. What many banks do offer is a teen or student checking product, usually starting around age 13, that requires a parent as co-owner. Teens under 17 or 18 typically have to open these in a branch rather than online.
If your child doesn’t have a Social Security number, some banks will accept an Individual Taxpayer Identification Number instead. An ITIN is available to foreign persons who aren’t eligible for an SSN and who can be claimed as a dependent on a U.S. tax return.3Internal Revenue Service. Topic No. 857, Individual Taxpayer Identification Number (ITIN) Not every bank accepts ITINs, so ask before you make the trip.
What the Bank Will Ask For
Federal rules require the bank to collect specific identifying information for anyone being added. At a minimum, that means your child’s full legal name, date of birth, residential address, and taxpayer identification number.4eCFR. 31 CFR 1020.220 – Customer Identification Program Requirements for Banks
Beyond the identifiers, expect to bring:
- For an adult child, a valid government-issued photo ID such as a driver’s license or passport.
- For a minor child, a birth certificate (original or certified copy) to prove identity and the parent-child relationship, plus your own ID.
Most banks want everyone signing the new account agreement in person at a branch, with all current owners and the person being added present.5Bank of America. Account Changes Names on the forms have to match the IDs exactly. Small mismatches slow things down.
Who Actually Controls the Money
The type of access you pick decides who can do what with the balance.
A joint owner can withdraw the entire balance at any time, and both owners share responsibility for overdrafts and fees. On death, the survivor inherits automatically. That automatic transfer is the feature people usually want, and it’s also the reason a joint account can quietly undo an estate plan.
An authorized signer can transact but owns nothing, can’t close the account, and loses access when you die. You keep full legal control.
In a UTMA or UGMA account, the money legally belongs to the child from the moment you deposit it. You can’t take it back for your own use, and spending custodial funds on things that aren’t for the child’s benefit can create legal liability.2HelpWithMyBank.gov. What Is a UGMA or UTMA Account?
The Risks Worth Weighing First
Creditor Exposure
This is the risk people miss most often. If a joint owner has unpaid debts and a creditor gets a judgment, the creditor may be able to levy the joint account, even on money you deposited. Some states limit garnishment to the debtor’s presumed share, usually half; others let a creditor take the whole balance. The exposure runs both directions: your lawsuit can reach your child’s savings in the same account. Reclaiming money after a levy means proving through bank records that the funds trace to your deposits alone, which is slow and uncertain.
Government Benefits
If your child receives Supplemental Security Income, a joint account is dangerous. SSI has a $2,000 individual resource limit.6Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet The Social Security Administration presumes every dollar in a joint account belongs to your child, even if you deposited all of it, and the burden falls on your child to prove otherwise.7Social Security Administration. SSI Spotlight on Financial Institution Accounts A balance above $2,000 can cost the benefit.
If you might need Medicaid-funded long-term care, joint accounts also cause problems. Medicaid generally counts the full balance as the applicant’s unless there’s clear proof otherwise, and the program looks back at asset transfers over the previous 60 months in most states. How the account is titled matters too: “or” titling, where either owner can act alone, is treated differently from “and” titling.
College Financial Aid
The federal FAFSA formula assesses student-owned assets at up to 20% of their value, and parent-owned assets at a maximum of roughly 5.64%. That’s the difference between $10,000 reducing aid eligibility by up to $2,000 versus about $564. A joint account with your child as co-owner may be counted as a student asset, and custodial UTMA and UGMA accounts are treated as student assets on both the FAFSA and the CSS Profile. A parent-owned 529 plan is reported as a parent asset, which is more favorable.
Gift Tax
Just putting your child’s name on a joint account usually doesn’t trigger federal gift tax by itself. The taxable gift generally happens when your child withdraws money for their own use. If withdrawals in a year exceed the annual gift tax exclusion, which is $19,000 for 2026, you may need to file a gift tax return.8Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Filing doesn’t necessarily mean you owe tax, but skipping the filing can cause problems later. Custodial accounts are different: a deposit into UTMA or UGMA is an irrevocable gift on the day you make it.
FDIC Insurance (the Upside)
One benefit worth knowing: joint ownership can raise FDIC coverage. The FDIC insures each co-owner up to $250,000 for their combined interests in all joint accounts at the same bank, and assumes equal shares unless bank records show otherwise.9FDIC. Joint Accounts A $500,000 joint balance is fully covered; the same money in a single-owner account is only covered to $250,000.
If You Don’t Actually Need Shared Ownership
If your goal is convenience or making sure the account passes to your child cleanly, you don’t necessarily need to make them a joint owner.
A payable-on-death designation names your child to inherit the account outside of probate while keeping them off it entirely during your lifetime. No access, no ownership, no creditor exposure until you die. Most banks add a POD with a short form, often for free, and you can change or remove the beneficiary any time.
A financial power of attorney lets your child manage your account on your behalf without becoming an owner. Your child can deposit, withdraw, and pay bills as your agent, and the funds don’t appear under their name for taxes, benefits, or creditor claims. A POA ends at your death, so it doesn’t replace a will or beneficiary designation. For it to keep working if you become incapacitated, it has to be drafted as a “durable” power of attorney.