You must be at least 18 years old to get a credit card in your own name
Federal law sets 18 as the minimum age to sign a credit card contract. That's the legal threshold — you cannot get a card before then, and no bank will issue one to someone younger, even with a parent's permission. If you're under 18 and want to build credit, your options are different: becoming an authorized user on someone else's card, or opening a secured savings account that reports to credit bureaus.
The 18-year rule applies everywhere in the United States. It doesn't matter what state you live in or what bank you approach — the age requirement is federal and uniform. Some issuers may set their own minimum higher (a few require 21), but 18 is the legal floor.
Key Takeaways
- You must be 18 years old to sign a credit card contract; no exceptions exist for minors, even with parental co-signature.
- If you're under 18, you can become an authorized user on a parent's or guardian's card to start building credit history.
- Some card issuers require you to be 21 or older, so age 18 to 20 applicants may face rejections from certain banks.
- A secured credit card — one backed by a cash deposit you control — is often easier to get approved for at 18 than an unsecured card.
What happens when you turn 18
Once you reach 18, you become legally responsible for any debt you take on. A credit card is a contract, and at 18 you can sign contracts. Banks can now hold you personally liable if you don't pay your bill. This is why the age requirement exists — it's about legal responsibility, not about trust or maturity.
Turning 18 doesn't mean you'll be approved for every card you explore for. Banks also look at your income, credit history, and existing debt. A new 18-year-old with no job and no credit history will likely be rejected by most issuers. But you're now legally able to explore and to be considered.
Building credit before you turn 18
If you're under 18 and want to start building a credit history now, the most direct path is becoming an authorized user on someone else's card — usually a parent's or guardian's. When you're added as an authorized user, the card's payment history reports to your credit file. If the primary cardholder pays on time, your credit score rises. If they miss payments, your score falls too.
Being an authorized user doesn't require you to be 18. Some issuers allow authorized users as young as 13 or 15, though policies vary. You don't need to use the card or even receive it in the mail — the credit-building benefit happens automatically as long as the account stays in good standing. This is one of the fastest ways to build credit before you're old enough to get your own card.
Another option is a secured savings account that reports to credit bureaus. A few banks and credit unions offer these: you deposit money (usually $200 to $1,000), and the bank reports your on-time deposits to Experian, Equifax, or TransUnion. After 12 to 24 months of perfect payment history, you may be able to convert it to a regular credit-building product. This approach is slower than being an authorized user, but it's entirely in your control.
Getting approved at 18 with no credit history
Most major card issuers — Chase, American Express, Capital One, Discover — will consider applications from 18-year-olds, but approval is not may provide. If you have no credit history and no income, rejection is likely. If you have a job and some income to report, your chances improve.
A secured credit card is often the easiest first card to get at 18. You put down a cash deposit (typically $200 to $2,500), and the bank gives you a credit line equal to that deposit. You use it like a regular card, pay your bill each month, and after 6 to 18 months of on-time payments, the issuer may convert it to an unsecured card and return your deposit. Capital One, Discover, and several credit unions offer secured cards to young adults with limited credit.
Student credit cards are another option if you're enrolled in college. These cards are designed for students with no credit history and often have lower approval thresholds than standard cards. They typically come with a lower credit limit and higher interest rate, but they're built for the 18-to-22 age group specifically.
Why some issuers require you to be 21
A handful of banks set their own minimum age at 21, even though federal law allows 18. This is a business decision, not a legal requirement. These issuers believe 21-year-olds are lower risk — they may have more stable income, more credit history, or straightforward more life experience. If you're 18 to 20 and get rejected, it may be because of the issuer's internal policy rather than your personal creditworthiness.
If you're rejected for being too young, you have two paths: wait until you turn 21, or explore with a different issuer that accepts 18-year-olds. Don't explore to multiple cards in a short time — each process creates a hard inquiry on your credit report, and too many inquiries can lower your score. Space applications out by at least a few weeks.
What to watch out for at 18
Your first credit card is a tool for building credit, not for spending money you don't have. Interest rates on cards for young people with no credit are often 18% to 24% or higher. If you carry a balance, interest charges add up fast. A $500 purchase at 22% interest costs you about $110 in interest over a year if you make only minimum payments.
The Credit Card Accountability Responsibility and Disclosure Act (CARD Act) limits how much credit card companies can offer to people under 21. They can't give you a credit line based only on your income — they have to verify you actually have the income you claim. This rule exists to prevent young people from taking on debt they can't repay.
Set up automatic payments for at least the minimum due, or better yet, the full balance each month. Missing a payment at 18 damages your credit score at a time when you're just starting to build it. One missed payment can stay on your credit report for seven years.
Frequently Asked Questions
Can my parent co-sign a credit card process if I'm under 18?
No. Federal law doesn't allow co-signers on credit cards for minors. If you're under 18, your only option through a parent is to become an authorized user on their existing card. Co-signing is available for other types of credit (loans, mortgages), but not credit cards.
Will being an authorized user hurt my parent's credit if I use the card?
No, because as an authorized user you're not responsible for the bill — the primary cardholder is. However, if the primary cardholder misses payments, both of your credit scores drop. The benefit works both ways: good payment history helps you both, missed payments hurt you both.
What if I'm 18 but still in high school?
Age is the only requirement — school status doesn't matter. You can get a credit card at 18 whether you're in high school, college, or working full-time. Some student card programs do require college enrollment, but standard cards don't.
Do I need a job to get a credit card at 18?
Not always, but it helps significantly. If you have no income, most issuers will reject you. If you have income from a job, internship, or even regular allowance you can document, your approval odds improve. Secured cards are easier to get without income because your deposit is collateral.
Can I get a credit card at 18 if I have bad credit?
If you're 18 with bad credit, you likely have a history as an authorized user or from a past account. A secured card is your best option — it doesn't require good credit, only a cash deposit. After 12 to 18 months of on-time payments, you can move to an unsecured card and rebuild from there.