You must be at least 18 years old to open a credit card in your own name
Federal law sets 18 as the minimum age to sign a credit card agreement. This applies whether you explore online, by mail, or in person at a bank branch. At 18, you have the legal capacity to enter a binding contract, which is what a credit card account is.
Before 18, you cannot be the primary cardholder on your own account. If you want to build credit history before turning 18, the main route is becoming an authorized user on someone else's card — typically a parent or guardian's account. As an authorized user, you receive a card linked to their account, and their payment history reports to your credit file.
Key Takeaways
- You must be 18 to open a credit card account in your own name, and you will need a Social Security number and proof of income or assets.
- Before 18, you can become an authorized user on a parent's or guardian's card to start building credit history without opening your own account.
- Card issuers may require proof of independent income if you are under 21, even though you are legally old enough to hold a card.
- Becoming an authorized user does not require you to be 18, but the primary cardholder must be an adult.
- Your credit history begins the moment an account reports to the credit bureaus, whether as a primary cardholder or authorized user.
What happens when you turn 18
At 18, you can walk into a bank or credit union and open a credit card account. You will need a Social Security number, proof of identity (usually a driver's license or state ID), and proof that you have income or assets. Income can be from a job, a scholarship, or regular family support — the issuer just needs to know you have a way to pay the bill.
Many issuers offer student credit cards specifically for people aged 18 to 24 who are in school. These cards often have lower credit limits and fewer rewards than standard cards, but they are designed for people building credit for the first time. The approval process is usually faster because the issuer expects lower balances.
The CARD Act rules for people under 21
The Credit Card Accountability Responsibility and Disclosure Act (CARD Act), passed in 2009, added a requirement for cardholders under 21. If you are between 18 and 20, the issuer must verify that you have independent income, or you must have a cosigner who is 21 or older.
Independent income means money you earn yourself — from a job, freelance work, or a business you run. It does not include money your parents give you, even if it is regular. If you do not have independent income, a parent or guardian can cosign your process. A cosigner is legally responsible for the debt if you do not pay, so most parents treat this seriously.
Once you turn 21, this requirement no longer applies. You can open a card based on household income or assets alone, without proving your own individual earnings.
Building credit as an authorized user before 18
If you are under 18 and want to start building credit history, ask a parent or guardian to add you as an authorized user on their credit card. You do not need to be 18 for this — some issuers allow authorized users as young as 13, though policies vary. The primary cardholder can set spending limits or restrictions on your card.
When you are an authorized user, the account's payment history reports to your credit file under your name and Social Security number. If the primary cardholder pays on time every month, your credit score will improve. If they miss payments or carry a high balance, it will hurt your score too. You have no control over the account, so choose a cardholder with reliable payment habits.
Being an authorized user does not make you legally responsible for the debt. If the primary cardholder stops paying, the issuer cannot pursue you for the balance. However, the damage to your credit report will still affect your ability to borrow later.
What you need to bring when you explore
When you turn 18 and are ready to open your own card, gather these documents before you explore:
- A government-issued photo ID (driver's license, state ID, or passport)
- Your Social Security number
- Proof of income (a recent pay stub, offer letter, or tax return)
- Your current address
- A phone number and email address where the issuer can reach you
If you are explore online, you may be able to upload documents or answer questions about your income without printing anything. If you are explore in person at a bank branch, bring the physical documents. Some issuers will verify income by contacting your employer directly.
Credit limits and approval odds at 18
When you first open a card at 18, expect a low credit limit — often $300 to $500. This is normal and not a reflection of your creditworthiness. Issuers are cautious with first-time borrowers because you have no credit history yet. As you use the card responsibly and build a track record of on-time payments, the issuer will raise your limit over time.
Approval is not may provide even at 18. If you have no income, no cosigner, and no credit history, some issuers will deny you. In that case, a secured credit card is an alternative. With a secured card, you deposit cash into a savings account held by the issuer, and that deposit becomes your credit limit. Once you build six to twelve months of on-time payments, you can move to a standard unsecured card.
How your first card affects your credit score
Your credit score does not exist until you open your first account. The moment a credit card account reports to the three major credit bureaus — Equifax, Experian, and TransUnion — your credit file is created and your score is calculated. This happens whether you are the primary cardholder or an authorized user.
Your first card will have the biggest impact on your score over time through payment history. Making every payment on time, even if it is just the minimum, builds a strong foundation. Keeping your balance low relative to your credit limit also helps. These two habits — on-time payments and low utilization — are the main drivers of credit scores for new borrowers.
Frequently Asked Questions
Can I get a credit card at 17?
No. Federal law requires you to be 18 to sign a credit card agreement. However, you can become an authorized user on a parent's card before 18, and that account will report to your credit file. This is the only way to start building credit before you turn 18.
Do I need a job to open a credit card at 18?
You need some form of income or assets, but it does not have to be from a job. A scholarship, regular family support, or income from freelance work all count. If you are under 21, you must have independent income or a cosigner. At 21 and older, household income is enough.
What if I am 18 but have no credit history?
No credit history is normal at 18. Start with a student card, a secured card, or ask a parent to cosign. Your first card will be the foundation of your credit file. Focus on paying on time and keeping your balance low, and your score will improve steadily over the first year.
Can my parent cosign my card if they are under 21?
No. A cosigner must be 21 or older. If your parent is under 21, they cannot cosign for you. In that case, you would need to find another adult — a grandparent, older sibling, or other relative — who is 21 or older and willing to cosign.
Does being an authorized user hurt my credit if the primary cardholder misses a payment?
Yes. The account's payment history reports to your credit file, so missed payments will lower your score. You have no control over the account and are not legally responsible for the debt, but the damage to your credit is real. Choose a primary cardholder with a strong payment history.