In most states you can open a bank account on your own the day you turn 18, because that is when you gain the legal capacity to sign a binding contract. Before 18, you can usually open one with a parent or guardian as a joint owner or custodian. After 18, whether you actually get approved comes down to three things: proving who you are, your past banking record, and, if you are not a U.S. citizen, which identity documents the bank will accept. The question of when you can open a bank account is really a question about which of those gates applies to you.
The Age Rule and Its Exceptions
No federal law sets a minimum age. The barrier is state contract law: a minor generally lacks capacity to enter a binding contract, and any agreement a minor signs is potentially voidable, meaning the minor could walk away from it. Banks respond to that risk by requiring adult involvement for anyone under 18.1Financial Crimes Enforcement Network (FinCEN). Guidance to Encourage Youth Savings and Address FAQs
Eighteen is the age of majority in most states, but not all. Alabama and Nebraska set it at 19, and Mississippi at 21. If you live in one of those states, you won’t have independent contracting power until that later birthday, which affects when a bank will let you open an account on your own.
Some states have carved out exceptions. Washington, for example, allows minors to enter valid, enforceable contracts for deposit accounts. A handful of banks run youth savings programs where students open accounts independently as part of financial education efforts, and in those cases the minor is the bank’s customer, not the parent.1Financial Crimes Enforcement Network (FinCEN). Guidance to Encourage Youth Savings and Address FAQs
Accounts for People Under 18
The most common path for someone under 18 is a joint account with a parent or legal guardian. The adult co-owner shares liability for the account’s activity, including any overdrafts or fees, while the minor handles deposits and withdrawals. Once the minor reaches the age of majority in their state, they can typically convert the account to an individual one or open a new account on their own.
A separate option is a custodial account, often established under the Uniform Transfers to Minors Act (UTMA) or the older Uniform Gifts to Minors Act (UGMA). With a custodial account, the adult manages the funds on the minor’s behalf, and the minor cannot make withdrawals without the custodian’s approval. The child gains full control once they reach the age specified by their state’s version of the law, typically 18 or 21.1Financial Crimes Enforcement Network (FinCEN). Guidance to Encourage Youth Savings and Address FAQs
Whether a bank will open an account for a minor with no adult involvement is each institution’s own call, made in consultation with its legal counsel. If you’re a parent setting up a child’s first account, call the bank ahead of time and ask what they require. Policies vary widely.
The ID and Information You Have to Provide
Age isn’t the only gate. Federal anti-money-laundering rules require every bank to run a Customer Identification Program before opening an account. At minimum, that means collecting four pieces of information: your full legal name, date of birth, physical address, and a taxpayer identification number such as a Social Security number.2eCFR. 31 CFR 1020.220 – Customer Identification Program Requirements for Banks
To verify that information, expect to show an unexpired government-issued photo ID such as a driver’s license or passport. Many banks also ask for a piece of mail showing your current address, like a utility bill or lease, though the federal rule doesn’t mandate a specific address document. Each bank’s own risk assessment sets the ceiling on how much documentation it wants.2eCFR. 31 CFR 1020.220 – Customer Identification Program Requirements for Banks
If your account will earn interest, the bank may give you a Form W-9 to certify your taxpayer ID and confirm you’re not subject to backup withholding. If you fail to provide a correct TIN, or the IRS has previously flagged you for underreporting interest and dividend income, the bank must withhold 24% of interest payments and send it to the IRS.3Internal Revenue Service. Backup Withholding
You can complete most of this online. Under the federal E-SIGN Act, an electronic signature carries the same legal weight as a handwritten one, and a contract cannot be denied legal effect just because it was formed electronically.4Office of the Law Revision Counsel. 15 USC 7001 – General Rule of Validity Decisions on online applications often come within minutes; in-person applications typically get resolved the same visit, with a few business days’ delay in cases that need extra review.
If You’re Not a U.S. Citizen
You don’t need to be an American citizen to open a U.S. bank account. Federal Customer Identification Program rules directly address non-U.S. persons. In place of a Social Security number, the bank can accept a foreign passport number, an alien identification card number, or the number from another government-issued document showing nationality or residence and bearing a photo. An Individual Taxpayer Identification Number (ITIN) serves as the taxpayer ID for people not eligible for a Social Security number.2eCFR. 31 CFR 1020.220 – Customer Identification Program Requirements for Banks
What each bank actually accepts varies. Some major banks will open an account at a branch using a foreign passport and an ITIN. Others require two forms of ID plus proof of both a U.S. address and a home-country address. A 2025 joint order from the OCC, FDIC, and NCUA gave banks more flexibility to verify identity for non-citizens, allowing taxpayer ID information to come from a third party rather than directly from the customer. Implementation still depends on each bank’s own policies.
If you’re in the U.S. temporarily and don’t yet have an ITIN, you can apply for one using IRS Form W-7. An ITIN is purely for tax reporting; it doesn’t authorize employment or change your immigration status.
When Banking History Blocks You
Even if you’re old enough and have the right documents, your past banking behavior can stop an application cold. About 80% of banks and credit unions check applicants against specialty consumer reporting agencies like ChexSystems or Early Warning Services. A bad record there can get your application rejected before a human looks at it.
The most common reasons for a negative record are unpaid overdraft balances and accounts your previous bank closed involuntarily. Those entries generally stay on the reports for five years.5Office of the Comptroller of the Currency. How Long Does Negative Information Stay on ChexSystems and EWS
One rule worth knowing before you ever get into this situation: overdraft fees on debit card purchases and ATM withdrawals are opt-in. A bank cannot charge you an overdraft fee on those transactions unless you have affirmatively consented to its overdraft service. Keeping that opt-in turned off is the simplest way to avoid the marks that end up on a ChexSystems report.6Consumer Financial Protection Bureau. 12 CFR 1005.17 – Requirements for Overdraft Services
Second-Chance and Bank On Accounts
A denial isn’t permanent. Some banks offer “second chance” accounts for people rebuilding their banking history. These often carry higher monthly fees and fewer features than standard checking, but they give you a way back in.7FDIC. GetBanked
Another option is a Bank On certified account. These low-cost accounts meet national standards set by the Cities for Financial Empowerment Fund and don’t allow overdraft or insufficient-fund fees, which eliminates the main way people end up with negative banking records. Dozens of banks and credit unions offer Bank On certified products, and the program’s current standards run through 2026.7FDIC. GetBanked
What to Do After a Denial
When a bank rejects your application based on information from a consumer reporting agency, it must send you an adverse action notice identifying the agency by name, address, and phone number, and explaining your right to dispute inaccurate information.8Consumer Financial Protection Bureau. What Can I Do if My Credit Application Was Denied Because of My Credit Report
Get a copy of the report the bank used. Every consumer is entitled to one free disclosure per year from each nationwide specialty consumer reporting agency, including ChexSystems, plus a free report any time someone takes adverse action against you based on your file.9Office of the Law Revision Counsel. 15 USC 1681j – Charges for Certain Disclosures
Read it carefully. If anything is wrong, file a dispute directly with the reporting agency. The agency must investigate, and if the information is inaccurate or unverifiable, it must delete or correct the entry. If the investigation doesn’t resolve things, you have the right to add a statement to your file explaining your side.10Office of the Law Revision Counsel. 15 USC 1681i – Procedure in Case of Disputed Accuracy
If the negative marks are accurate, pay off any outstanding balances with your former bank. Some banks will update your ChexSystems record to show the debt as satisfied, which can improve your chances of approval elsewhere even before the five-year window closes.
Opening an Account for a Business
A business account is a different track. The entity has to exist on paper first: form the business with the state, then apply for an Employer Identification Number (EIN) from the IRS. Applying for an EIN before your entity is properly formed with the state can delay your application, the IRS warns.11Internal Revenue Service. Get an Employer Identification Number
What the bank wants next depends on your structure. Corporations bring Articles of Incorporation filed with the state, corporate bylaws, and a resolution authorizing the account. LLCs bring Articles of Organization and the Operating Agreement identifying members and managers. Sole proprietors operating under a trade name generally need a fictitious business name (DBA) registration from their county or state, since many banks won’t open an account under a business name without that proof. Partnerships bring the partnership agreement and, in most states, a filed certificate of partnership.
Every business account also needs an EIN, which functions like a Social Security number for the entity and is free and instant through the IRS website.12U.S. Small Business Administration. Get Federal and State Tax ID Numbers
Keeping business and personal funds in separate accounts is what preserves the legal separation between you and your business. If you commingle funds, a court may pierce the corporate veil and hold you personally liable for business debts, defeating the reason you formed an LLC or corporation in the first place.