You must be at least 18 years old to open a credit card in your own name
Credit card issuers require you to be a legal adult — 18 or older — to sign a contract and be held responsible for debt. This is a federal rule that applies to every card issuer in the United States. If you are under 18, you cannot open an account by yourself, but you have other options to start building credit history.
Some banks and credit unions offer student credit cards or secured cards specifically for people under 21, though you still need to be at least 18 to hold one. If you are younger than 18, you can become an authorized user on a parent's or guardian's card, which means you get a card linked to their account but they remain legally responsible for the debt.
Key Takeaways
- You must be 18 years old to open a credit card account in your own name anywhere in the United States.
- If you are under 18, you can be added as an authorized user on a parent's card to start building credit history.
- People under 21 who are 18 or older can open student cards or secured cards, though these often come with lower credit limits and higher interest rates.
- Your credit history begins when you open your first account, so the age you start matters for your long-term credit score.
What happens if you are under 18
If you are 16 or 17, you cannot hold a credit card in your own name. Banks will not issue one to you because you cannot legally sign a binding contract. However, you can still start building a credit history by becoming an authorized user on a parent's or guardian's account.
When you are added as an authorized user, the card issuer reports your account activity to the credit bureaus (Equifax, Experian, and TransUnion). This means on-time payments and low balances help your credit score grow, even though the account holder is responsible for paying the bill. You do not need to use the card or even carry it — some parents add their children as authorized users specifically to help them build credit before they turn 18.
Getting a card at 18: student cards and secured cards
Once you turn 18, you can open a credit card account. Most major issuers offer student credit cards designed for people 18 to 21 who are enrolled in college. These cards typically have lower credit limits (often $500 to $2,500) and higher interest rates than standard cards, but they require no credit history to open. You will need proof of enrollment and a Social Security number.
If you are 18 but not in school, or if you cannot get approved for a student card, a secured credit card is another option. You deposit cash with the issuer — usually $200 to $2,500 — and that deposit becomes your credit limit. You use the card like a regular card, make monthly payments, and the issuer reports your activity to the credit bureaus. After 6 to 18 months of on-time payments, many issuers will convert your account to a standard unsecured card and return your deposit.
What you need to open a card at 18
To open a credit card account at 18, you will need a Social Security number, a valid government-issued ID (driver's license or passport), and proof of income or enrollment in school. Income can be from a job, a work-study position, or even a parent's household income if you list them as a source of support — issuers do not require you to earn money yourself.
You will also need a mailing address and a phone number. Most issuers now let you open an account online in 5 to 10 minutes. They will pull your credit report to check for any existing accounts or missed payments, though if you have no credit history yet, they will straightforward approve or deny you based on your income and age.
Why starting at 18 matters for your credit score
Your credit history is the record of every account you have opened and how you have paid it. The longer your history, the better your credit score tends to be, all else equal. If you open your first card at 18, you will have a 10-year credit history by 28. If you wait until 25, you will not reach that milestone until 35.
This matters because lenders use credit history length as one factor in deciding whether to lend to you and at what interest rate. A longer history of on-time payments makes you look less risky. Starting early also gives you time to recover from mistakes — a missed payment at 20 will have less impact on your score at 30 than a missed payment at 25 would have at 35.
The difference between being an authorized user and opening your own card
As an authorized user, you benefit from the account holder's payment history, but you do not build your own credit history. When you turn 18 and open your own card, you start a separate credit history that is yours alone. Both accounts can appear on your credit report, which is actually helpful — it shows lenders you have experience managing credit in two different ways.
The key difference is responsibility. As an authorized user, you have no legal obligation to pay the bill. As the account holder, you do. This is why opening your own card at 18 is important: it proves to future lenders that you can manage debt on your own, not just as a secondary user on someone else's account.
Frequently Asked Questions
Can a 17-year-old get a credit card?
No, you must be 18 to open a credit card account in your name. However, you can be added as an authorized user on a parent's card at any age, which helps build your credit history before you turn 18.
What if I turn 18 but have no income?
You can still open a student card or secured card. For a student card, you need proof of enrollment. For a secured card, you need a deposit. Some issuers also let you list a parent's household income if you live with them and they support you financially.
Does being an authorized user hurt my credit when I turn 18?
No. Having an authorized user account on your credit report is beneficial — it shows payment history and helps your score. When you open your own card at 18, both accounts can appear on your report, which is a positive sign to lenders.
What happens to my authorized user account after I open my own card?
It stays on your credit report and continues to help your score as long as the account holder makes on-time payments. You can keep it open or ask to be removed, but there is no penalty for keeping it. Having multiple accounts with good payment history is good for your credit score.
Is 18 too young to get a credit card?
No. Opening a card at 18 gives you a head start on building credit history, which affects your ability to borrow money for a car, apartment, or home later. Starting early with a student or secured card, making small purchases, and paying on time is one of the best ways to build a strong credit foundation.