You have to be at least 18 years old to get a credit card in your own name in the United States, and if you’re under 21, federal law requires you to prove you can afford the payments on your own or bring in a co-signer who’s 21 or older. Anyone under 18 can’t sign a credit card contract at all, but a parent can add them to an existing account as an authorized user, which is the standard way minors start building credit history.
Why 21 Is the Real Threshold for Many Applicants
Turning 18 gives you the legal right to apply. Getting approved is a different question. The Credit CARD Act of 2009 amended the Truth in Lending Act to stop issuers from opening an account for anyone under 21 unless the applicant shows an independent ability to make minimum payments or has a qualifying co-signer.1eCFR. 12 CFR 1026.51 – Ability to Pay
Before that law, 18-year-olds could sign up with few restrictions, and issuers marketed heavily on college campuses. The current rule closes that door for young applicants who don’t earn their own money.
How to Qualify Between 18 and 20
Two paths exist on paper. In practice, only one is realistic.
Show Your Own Income
The most common route is proving you earn enough to cover the minimum payments. Wages, salary, tips, and scholarships applied to living expenses can all count. The rule turns on the word “independent”: card issuers can only consider income or assets that actually belong to you. They cannot count a parent’s income or a household account you don’t own.2Consumer Financial Protection Bureau. Regulation Z, 1026.51 Ability to Pay
This is stricter than the standard applied to applicants 21 and over. A 2013 amendment to Regulation Z let older applicants include household income or income they reasonably expect to access, such as a spouse’s earnings. That change did not extend to people under 21.3Federal Register. Truth in Lending (Regulation Z)
On the application, expect to see fields for “income,” “personal income,” or “salary.” Issuers can generally rely on what you report without asking for pay stubs.
Find a Co-Signer
The law also allows someone 21 or older to co-sign, taking on responsibility if you can’t pay.1eCFR. 12 CFR 1026.51 – Ability to Pay The catch is that no major issuer accepts co-signers anymore. American Express, Bank of America, Capital One, Chase, Citi, Discover, and Wells Fargo have all dropped the option. If you’re under 21, your own income is essentially the only way in.
Building Credit Before 18
Minors can’t hold a credit card contract, not even a secured one. The workaround is being added to a parent’s or guardian’s account as an authorized user. You get a card with your name on it, but the primary cardholder is the one legally on the hook for the bill.4Consumer Financial Protection Bureau. Am I Liable to Repay an Authorized User Debt
Most issuers report authorized user accounts to the credit bureaus, so the account’s payment history and utilization show up on the minor’s credit reports. Some issuers hold off on reporting until the authorized user turns 18, so it’s worth calling to confirm before setting it up.
Issuer Age Minimums
Each issuer sets its own floor, and the range is wide:
- No minimum age: Bank of America, Capital One, Chase
- At least 13: American Express, Barclays, U.S. Bank
- At least 15: Discover
- At least 18: Wells Fargo (which effectively removes the minor credit-building option)
The Downside
Authorized user status runs both ways. If the primary cardholder pays late or runs up high balances, that history hits the authorized user’s reports too. A parent who adds a teenager to an account they’re already struggling with can damage the child’s credit before the child ever applies for anything of their own. The user can be removed at any time, but negative marks from that window can linger.
Debit and Prepaid Cards for Younger Teens
Teen debit cards and prepaid spending cards don’t build credit, but they let a younger teenager practice managing money with parental oversight. Many are available with no minimum age and come with apps where a parent can set limits and see transactions. Using a debit card at 14 or 15, moving to authorized user status at 16 or 17, and then applying for a first credit card at 18 with some work income is a workable sequence.
What to Look For in Your First Card at 18
Once you can apply on your own, the choice of card matters more than just clearing approval:
- APR. Cards aimed at young adults and thin credit files often carry rates above 25%. If you pay the full balance monthly, the rate is irrelevant. If you don’t, it compounds quickly.
- Fees. Watch for annual, late payment, and foreign transaction fees. Plenty of starter cards have no annual fee.
- Credit limit. First cards usually come with low limits, sometimes just a few hundred dollars. That’s a feature, not a flaw, when you’re learning.
- Secured cards. If you can’t qualify for an unsecured card, a secured card takes a cash deposit that becomes your limit. Responsible use gets reported the same way and can move you to an unsecured card in six to twelve months.
The habit that matters most is paying the full statement balance by the due date every month. Carrying a balance costs you interest without helping your score. On-time payments are the biggest factor in credit scoring, so setting the card up to cover one recurring expense on autopay is a low-risk way to start.