The Age Rule: When You Can Open an Account Alone
You need to be at least 18 years old to open a checking account by yourself at most banks and credit unions. If you are under 18, you will need a parent or guardian to co-own the account with you — the bank will require their signature and identification, and they will have full access to the account.
Some banks allow teens as young as 13 to open accounts, but only as a custodial account or teen account, which means an adult retains legal control. The adult can see all transactions, set spending limits, and close the account. You cannot open this type of account without them present or authorizing it in writing.
A few online banks and fintech companies have different rules — some let you open an account at 16 or 17 with parental consent, or at 18 without anyone else involved. The specific age and requirements depend on the bank's own policy and your state's laws, so you will need to check with the institution directly.
Key Takeaways
- You must be 18 to open a standard checking account alone; under 18 requires a parent or guardian as co-owner.
- Teen accounts and custodial accounts let younger teens bank, but an adult controls the account and sees all activity.
- Online banks and credit unions sometimes have different age rules, so contact them directly to confirm their minimum age.
- The adult co-owner will need to bring a government ID and sign documents in person or online, depending on the bank.
- Once you turn 18, you can open your own account without anyone else's permission or involvement.
What Happens When an Adult Co-Owns Your Account
When a parent or guardian co-owns your checking account, they are a full owner, not just an authorized user. That means they can withdraw money, close the account, change the PIN, and see every deposit and purchase you make. There is no privacy — the bank treats it as their account as much as yours.
Some parents use this as a teaching tool and agree not to touch the money without permission. Others monitor spending closely or set rules about what the account can be used for. Either way, legally and technically, they have the right to do whatever they want with the account balance.
The co-owner is also responsible if the account goes negative or if there are overdraft fees. If you overdraw the account, the bank can pursue the adult for payment, not just you.
Teen Accounts and Custodial Accounts: What's the Difference
A teen account is a checking account designed for minors, usually ages 13 to 17. It comes with a debit card and online access, but a parent or guardian must set it up and remains the account owner. The teen can make purchases and check balances, but the adult can freeze the card, set daily spending limits, and see all transactions in real time through a linked parent app.
A custodial account is a legal structure that holds money for a minor until they reach the age of majority (usually 18 or 21, depending on your state). The custodian — typically a parent — manages the account and can use the money only for the child's benefit. Once the child reaches the age set by state law, the account transfers to them automatically, and the custodian loses all control.
Teen accounts are more common at banks and are meant for everyday spending. Custodial accounts are often used for savings or money given as gifts, and they have tax and legal implications that teen accounts do not. Ask the bank which type they offer and what the rules are for transferring control when you turn 18.
Banks and Credit Unions With Different Age Rules
Most traditional banks (Chase, Bank of America, Wells Fargo) require you to be 18 to open any account without an adult. However, many offer teen accounts starting at age 13 or 14 with parental involvement.
Credit unions sometimes have lower age minimums — some allow accounts at age 12 or 13 with a parent. The rules vary widely by credit union, so contact yours directly.
Online banks and fintech companies like Chime, LendingClub, and others have experimented with lower age requirements, sometimes allowing 16- or 17-year-olds to open accounts with parental consent, or even without it in some cases. These rules change frequently and vary by state, so you will need to visit their website or call to confirm current policy.
What Documents You and Your Adult Will Need
To open a checking account with a parent or guardian, both of you will typically need to bring or provide:
- A government-issued photo ID for the adult (driver's license, passport, or state ID)
- Your birth certificate or school ID, or sometimes just your name and date of birth
- Proof of address for the adult (a recent utility bill, lease, or bank statement)
- Your Social Security number or tax ID
- The adult's Social Security number
If you are opening the account online, the bank may ask you to verify your identity through a video call or by uploading photos of documents. The adult will need to do the same. Some banks require both of you to visit a branch in person to sign the paperwork.
Call the bank ahead of time to ask what they need from each of you. Rules differ between branches and between online and in-person applications.
Opening Your Own Account Once You Turn 18
On your 18th birthday, you can walk into any bank or credit union and open a checking account without anyone else's permission or involvement. You will need your government ID, Social Security number, and proof of address. You do not need to notify your parents or get their approval.
If you have been using a teen account or custodial account, you have a choice: keep it as is (the adult remains co-owner), ask the bank to convert it to an account in your name alone, or open a separate account at the same bank or a different one. If you want the adult removed, contact the bank and ask about the process — some banks make it simple, others require paperwork or a visit to a branch.
Once you have your own account, the adult co-owner no longer has access unless you add them as an authorized user, which is a different arrangement that you control.
What to Do If You Cannot Find an Adult to Co-Own
If you are under 18 and do not have a parent or guardian available to open an account with you, your options are limited but not zero.
Some credit unions allow a teacher, school counselor, or other trusted adult to co-own an account on behalf of a minor, though this is rare and varies by credit union. Ask your school or local credit union whether they have this option.
If you are in foster care or have been emancipated, some banks have special programs or will work with your caseworker or legal guardian. Contact the bank directly and explain your situation — they may have a process you are not aware of.
If you are 16 or 17, some online banks allow you to open an account with parental consent even if the parent is not physically present. You may be able to get consent over the phone or through email and complete the account opening yourself.
If none of these work, you may need to wait until you turn 18, or explore whether a trusted adult (a relative, mentor, or family friend) would be willing to co-own temporarily and transfer it to you later.
Frequently Asked Questions
Can my older sibling co-own my account instead of a parent?
No. Banks require the co-owner to be a parent, legal guardian, or custodian — not a sibling, aunt, or other relative. Your sibling would need to be your legal guardian for the bank to accept them. If you have a legal guardian who is not your parent, they can co-own the account.
What happens to my teen account when I turn 18?
The account does not automatically close or transfer. The adult remains the owner and can still see all activity. You will need to contact the bank and ask to convert it to an account in your name alone, or open a new account. Some banks make this automatic; others require you to request it.
Can I hide purchases from the adult co-owner?
Not if they are monitoring the account through the bank's app or website. Every transaction shows up in real time. If you want privacy, you will need to wait until you turn 18 and open your own account, or have a conversation with the adult about what level of monitoring you both agree to.
Do I need the adult present when I open the account?
It depends on the bank. Some require both of you to visit a branch in person. Others allow the adult to authorize the account online or over the phone. Call ahead and ask whether you can do it remotely or if you both need to be there.
What if the adult co-owner and I disagree about closing the account?
The adult has the legal right to close it because they are a full owner. You cannot prevent them from doing so. If this is a concern, have a conversation with them about it before opening the account, or wait until you turn 18 to open an account in your name alone.