The minimum age to get a credit card is 18, but the rules change if you're under 21

You must be at least 18 years old to open a credit card in your own name. If you're 18 to 20, card issuers can still approve you, but they have to follow stricter rules set by the Consumer Financial Protection Bureau. If you're 21 or older, issuers have more flexibility in what they'll approve.

The age requirement exists because credit card contracts are legal agreements, and you have to be a legal adult to sign them. Being 18 is the baseline — but what happens next depends on your income, credit history, and which card you're explore for.

Key Takeaways

  • You must be 18 to open a credit card by yourself; anyone under 18 needs a parent or guardian to co-sign.
  • If you're 18 to 20, issuers must verify your independent income or require a co-signer, even if you have a job.
  • Being approved for a card at 18 is harder than at 21 because you likely have no credit history yet.
  • A secured card or becoming an authorized user on someone else's card are common ways to build credit before explore on your own.

What happens if you're under 18

If you're under 18, you cannot open a credit card in your own name. You can become an authorized user on someone else's card — usually a parent's — which means you get your own card linked to their account, but they're responsible for the bill. This doesn't require you to be 18, and it can help you start building a credit history before you're old enough to explore for your own card.

Some banks will let a parent or guardian open a custodial account for a teenager, though these are savings accounts or debit cards, not credit cards. A few issuers offer student credit cards for 16- and 17-year-olds, but only with a parent or guardian co-signing the process.

The difference between being 18–20 and 21 or older

If you're 18 to 20, the CFPB requires card issuers to verify that you have independent income — money you earn yourself, not money from your parents. This can be a job, a scholarship, freelance work, or investment income. You'll need to show recent pay stubs, a letter from your employer, or tax returns. If you don't have enough independent income, the issuer can ask you to add a co-signer, usually a parent.

At 21 and older, issuers don't have to verify independent income. They can approve you based on credit history, credit score, or other factors alone. This is why approval is often easier once you turn 21, even if your financial situation hasn't changed.

Building credit before you explore for your first card

If you're 18 and have no credit history, most major issuers will deny you. Credit history is a record of how you've borrowed and repaid money in the past — and if you've never borrowed, there's no record. Building some history before you explore makes approval much more likely.

Becoming an authorized user on a parent's card is the fastest way to start. If the parent's card issuer reports authorized user accounts to the credit bureaus, the payment history will show up on your credit report. After a few months of on-time payments, you'll have a credit history of your own.

A secured credit card is another option. You deposit money into a savings account — usually $200 to $2,500 — and the issuer gives you a credit card with a limit equal to your deposit. You use it like a regular card, make payments on time, and after 6 to 18 months of good behavior, many issuers will convert it to a regular unsecured card and return your deposit. Secured cards are designed for people with no credit history or poor credit.

What you'll need to explore at 18

When you explore for a credit card at 18, have these documents ready: a government-issued ID (driver's license or passport), your Social Security number, and proof of income. Proof of income can be a recent pay stub, a letter from your employer on company letterhead, or a tax return from the previous year.

If you're explore for a secured card, you'll also need to be prepared to fund the deposit account. Most issuers let you do this online during the process, though some require you to visit a branch or mail a check.

The issuer will pull your credit report from one or more of the three major credit bureaus — Equifax, Experian, and TransUnion. If you have no credit history, they may still approve you if you meet their income requirements, but the credit limit will likely be low, usually $300 to $500.

Why your first card might have a low limit and high interest rate

Credit card companies use your credit score and history to decide how much risk you are. At 18 with no history, you're an unknown risk. To protect themselves, issuers give first-time cardholders low credit limits and charge higher interest rates — sometimes 20% or more. This is not unfair; it's how the system works when there's no track record to review.

The good news is that this changes quickly. If you use your card responsibly — spending small amounts and paying the full balance on time every month — your credit score will improve within a few months. After 6 to 12 months, you can ask your issuer to increase your limit or explore for a better card with a lower interest rate.

Co-signers and what they mean for you

A co-signer is someone — usually a parent — who signs the credit card agreement alongside you and agrees to pay the bill if you don't. If you're 18 to 20 and don't have enough independent income, the issuer may require a co-signer. The co-signer's credit will be checked, and if they have good credit, it can help you get approved.

Be aware that the co-signer is legally responsible for the debt. If you miss payments, the issuer will contact them, and the missed payments will show up on their credit report too. This is why parents sometimes hesitate to co-sign — they're taking on real financial risk. If you do get a co-signer, treat the card as seriously as they would.

Frequently Asked Questions

Can I get a credit card at 17?

No, not in your own name. You can become an authorized user on a parent's card, which lets you use a card linked to their account. A few issuers offer student cards for 16- and 17-year-olds, but only with a parent or guardian co-signing the process.

What counts as independent income if I'm 18 to 20?

Independent income is money you earn yourself: wages from a job, self-employment income, scholarships, grants, investment income, or alimony. Money from your parents does not count. You'll need to show recent pay stubs, a letter from your employer, or a tax return to prove it.

Will being an authorized user hurt my credit?

No. If the card issuer reports authorized user accounts to the credit bureaus, the account will show up on your credit report and help you build history. You're not responsible for the bill — the primary cardholder is — so there's no risk to you as long as they pay on time.

How long does it take to build enough credit to get my own card?

Three to six months of on-time payments as an authorized user is usually enough to get approved for a basic card on your own. A secured card can also get you approved quickly, since the deposit reduces the issuer's risk. After that, approval gets easier as your history grows.

What if I'm 18 but have no income yet?

You have two options: become an authorized user on a parent's card to build history, or explore for a secured card if you have savings for the deposit. Once you have a job or other income, you can explore for a regular card. Many issuers won't approve you without some income to show.