You cannot open a credit card on your own at 17 in the United States
Credit card companies require you to be at least 18 years old to sign a contract in your own name. At 17, you do not have the legal capacity to enter into a binding agreement, which is what a credit card account is. This is true across all major card issuers — Visa, Mastercard, American Express, Discover — and applies whether you explore online, by phone, or in person at a bank branch.
You have three realistic paths forward: become an authorized user on someone else's card, open a secured card once you turn 18, or wait until your 18th birthday to explore for a standard card. Each has different requirements and different effects on your credit history.
Key Takeaways
- You must be 18 to open a credit card account in your own name; no exceptions exist for employed minors or those with income.
- Becoming an authorized user on a parent's or guardian's card lets you use credit now and may help build your credit history before you turn 18.
- A secured credit card, available once you turn 18, requires a cash deposit but is designed for people with no credit history or poor credit.
- Your credit score begins building from the moment you open an account, so starting at 18 rather than waiting longer gives you a head start.
- The card issuer will run a credit check on the primary account holder, whether that is you at 18 or a parent adding you as an authorized user.
Becoming an Authorized User Before You Turn 18
An authorized user is someone who can use a credit card account but is not the legal owner of it. The account holder — usually a parent or guardian — remains responsible for all charges and payments. You receive your own card with your name on it and can make purchases, but you have no obligation to pay the bill.
The main benefit is that the account activity reports to your credit report. If the primary account holder pays on time and keeps the balance low, those positive marks appear on your credit history even though you are not yet 18. This means you arrive at your 18th birthday with an established credit history rather than starting from zero.
To become an authorized user, ask the account holder to contact their card issuer. Most allow this through their website, mobile app, or by calling customer service. You will need to provide your full name and date of birth. Some issuers charge a small fee to add an authorized user; others do not. The card usually arrives within 7 to 10 business days.
One important caveat: if the primary account holder misses payments or carries a very high balance, that negative activity also reports to your credit report. Choose someone whose payment habits are reliable.
Opening a Secured Card at 18
A secured credit card is designed for people with no credit history or a damaged one. Instead of the card issuer extending you credit, you deposit cash into a savings account held by the bank. That deposit becomes your credit limit — if you deposit $500, your limit is $500. You use the card like any other, and your payments report to the credit bureaus.
You become may be able to access for a secured card the moment you turn 18. Major banks and credit unions offer them: Capital One Secured Mastercard, Discover Secured Card, and US Bank Secured Card are common examples. The deposit requirement ranges from $200 to $2,500 depending on the card.
After 6 to 18 months of on-time payments and responsible use, the issuer may convert your account to a standard unsecured card and return your deposit. This is not automatic — you have to meet their criteria — but it is the intended path. Some people keep a secured card for years because the terms suit them.
What Happens When You Turn 18
At 18, you can open a credit card account in your own name without a parent's involvement. You will need a Social Security number, a current address, and proof of income (a job, a student loan, or documented financial support from a family member all count). The issuer will check your credit report and may ask for additional information.
If you were an authorized user before 18, that account history is already on your credit report, which helps. If you were not, you are starting fresh. Either way, your first account takes time to mature — most lenders want to see at least six months of history before they consider you for a second card or a higher limit.
Your first card as a primary account holder may have a lower limit than you might want, often $300 to $500. This is normal and not a reflection of your worth. Limits increase as you demonstrate responsible use.
Building Credit Before You Turn 18
If you want to build credit before your 18th birthday, becoming an authorized user is the most straightforward option. You can also explore whether your bank offers a youth savings account with a debit card — this does not build credit, but it teaches you account management and helps you save.
Some credit unions offer credit-builder loans to members under 18 with a parent's co-signature. You borrow a small amount (often $500 to $1,000), and the lender holds the money in a savings account while you make monthly payments. Once you repay the loan, you get the money back and have a positive payment history on your credit report. Ask your local credit union whether they offer this.
The earlier you start building credit responsibly, the better your score will be by the time you need it for a car loan, an apartment, or other major financial decisions.
Why Age 18 Is the Legal Threshold
Credit card companies require you to be 18 because that is when you reach the age of majority in the United States — the age at which you can legally sign contracts. A credit card agreement is a contract between you and the issuer. If you were under 18 and later wanted to cancel the account and refuse to pay, you could argue in court that you lacked the legal capacity to sign the agreement in the first place. The issuer would have no recourse.
This rule exists to protect both you and the card company. It prevents minors from taking on debt they cannot understand and prevents companies from lending to people who cannot be held to their agreements.
Frequently Asked Questions
Can I open a credit card if I have a job at 17?
No. Having income does not change the age requirement. You must be 18 to sign a credit card contract, regardless of how much money you earn. Some employers offer payroll cards or prepaid cards to younger workers, but these are not credit cards and do not build credit history.
What if my parent co-signs for me?
A co-signer does not lower the age requirement. The card issuer still cannot issue a card to someone under 18 in their own name. Your parent can make you an authorized user on their existing card, but they cannot co-sign a new account for you until you are 18.
Does being an authorized user hurt my parent's credit?
No. Being added as an authorized user does not affect the primary account holder's credit score. The account activity reports to both credit reports, but adding you does not change their creditworthiness in the issuer's eyes.
Will I have to pay back charges I make as an authorized user?
Not unless you and the account holder agree to it. Legally, the primary account holder is responsible for all charges. However, many parents ask their children to reimburse them for purchases, which teaches financial responsibility without creating a legal obligation.
What credit score do I need to open a card at 18?
If you have no credit history, you do not have a score yet. Secured cards and student cards are designed for people in this situation and do not require a minimum score. Once you open your first account, a score is generated based on that account's activity.