Teenagers cannot open a credit card account alone, but they have two real paths: becoming an authorized user on a parent's account, or opening a secured card at 18 with a parent as a co-signer

A teenager under 18 cannot legally sign a credit contract, so no credit card issuer will open an account in their name alone. The two working options are different in how they build credit and what control the teenager has. An authorized user is added to a parent's existing card and gets their own card linked to that account — the parent remains liable for all charges. A secured credit card requires a deposit (usually $200 to $2,500) held as collateral and can be opened at 18, often with a parent co-signing to improve approval odds.

Which path makes sense depends on whether the goal is to let a teenager make small purchases under supervision, or to start building their own credit history before they turn 18. Authorized user accounts build credit faster but give the parent full responsibility. Secured cards at 18 are slower but let the teenager own the account from the start.

Key Takeaways

  • Teenagers under 18 can become authorized users on a parent's credit card and receive their own card tied to that account, with the parent remaining responsible for all charges.
  • At 18, a teenager can open a secured credit card by depositing collateral ($200 to $2,500), often with a parent as co-signer to improve approval chances.
  • Authorized user accounts report to the teenager's credit report when ready, building credit history before age 18, while secured cards require the teenager to prove they can manage payments.
  • A parent adding a teenager as an authorized user does not require the teenager's permission or signature and can be reversed at any time.

How authorized user accounts work

When a parent adds a teenager to their credit card as an authorized user, the credit card company issues a second card in the teenager's name linked to the parent's account. All charges go to the parent's bill, and the parent receives one statement showing both their purchases and the teenager's. The parent can set spending limits on some cards, though not all issuers offer this feature — call the card issuer to ask what controls are available.

The key advantage is that the account reports to the teenager's credit report from the moment they are added. If the parent pays on time every month, the teenager's credit score begins building when ready, even though they are not making payments themselves. This can be valuable: a teenager who becomes an authorized user at 16 will have three years of positive credit history by the time they turn 18 and need their own account.

The parent is fully liable for all charges, even those the teenager makes. If the teenager overspends or the account goes unpaid, the damage appears on the parent's credit report, not the teenager's. The parent can remove the teenager from the account at any time without notice or the teenager's consent.

Secured credit cards at 18

A secured credit card is designed for people with no credit history or poor credit. The applicant deposits money into a savings account held by the bank, and that deposit becomes the credit limit — a $500 deposit means a $500 limit. The teenager makes purchases on the card like any other credit card, receives a monthly statement, and must make payments from their own money. The deposit stays in the bank's account and is not touched unless the teenager defaults.

Secured cards report to credit bureaus just like regular cards, so on-time payments build credit. After 12 to 24 months of responsible use, many issuers will convert the account to a regular unsecured card and return the deposit. Some teenagers will need a parent to co-sign the process, meaning the parent agrees to pay if the teenager does not — this improves approval odds but also makes the parent liable.

The teenager owns this account and makes the decisions about spending and payments. It is slower to build credit than being an authorized user, but it teaches the teenager to manage their own money and creates a credit history in their name alone.

Age requirements and what banks will accept

Most credit card issuers allow parents to add authorized users of any age, including young children, though some set a minimum age of 13 or 15. There is no legal age requirement — it is the card issuer's policy. Call the bank or check the card's terms to confirm whether your teenager can be added.

For secured cards, applicants must be at least 18 and have a Social Security number. Some banks require the applicant to have a checking or savings account with them already. A few issuers (including some credit unions) will open a secured card for someone 16 or 17 if a parent co-signs, but this is uncommon — most require 18.

Building credit as an authorized user versus a secured card holder

An authorized user's credit score rises or falls based entirely on the parent's behavior. If the parent pays late, the teenager's score drops even though the teenager made no decisions. If the parent carries a high balance, the teenager's credit utilization ratio (the percentage of available credit being used) climbs, which lowers their score. The teenager has no control over any of this.

A secured card holder controls their own credit building. They choose how much to spend, when to pay, and whether to pay on time. This teaches the habits that matter for long-term credit health. The tradeoff is that it takes longer — a secured card holder starting at 18 will have less credit history at 21 than someone who was added as an authorized user at 15.

Many teenagers benefit from both: becoming an authorized user early to build passive credit history, then opening a secured card at 18 to start managing their own account. This combination gives them multiple accounts reporting to their credit file, which improves their credit score.

What happens to the teenager's credit when they turn 18

If a teenager is an authorized user on a parent's card, that account stays on their credit report as long as the parent keeps the account open and in good standing. The teenager does not need to do anything — the account continues to help their credit score. However, the parent can remove them at any time, and if the parent closes the account, it stops helping the teenager's credit after about seven years (when it ages off the report).

At 18, the teenager can open their own accounts — a secured card, a student credit card, or a regular card if they have sufficient credit history from being an authorized user. They can also become an authorized user on other accounts. The accounts they open at 18 will be in their name alone and will not involve the parent unless the parent co-signs.

Common mistakes parents make

The biggest mistake is adding a teenager as an authorized user without explaining how credit works. The teenager sees the card and thinks it is information programs, not understanding that the parent is paying the bill. Before handing over the card, explain that every dollar spent is money the parent has to pay back, and that late payments hurt the parent's credit score.

Another mistake is not monitoring the teenager's spending. Some parents add their teenager to the card and assume the teenager will spend reasonably. Set a clear limit on what the teenager can spend per month, check the statement when it arrives, and have a conversation if the teenager goes over. This teaches accountability and prevents surprises.

A third mistake is closing the authorized user account too early. If the parent closes the account when the teenager turns 18, the teenager loses the credit history that account was building. It is better to keep the account open (with the teenager's spending monitored or removed) so the account continues helping their credit score.

Frequently Asked Questions

Can a teenager get a credit card without a parent?

No. Anyone under 18 cannot sign a legal contract, which includes a credit card agreement. At 18, a teenager can open a secured card or a student card on their own, though many issuers prefer a parent to co-sign to improve approval odds.

Does being an authorized user hurt the parent's credit?

No, not by itself. The account reports to both the parent's and the teenager's credit report. If the parent pays on time and keeps the balance low, it helps both credit scores. If the parent misses payments or carries a high balance, it hurts both scores.

What is the difference between a co-signer and an authorized user?

An authorized user receives a card and can make charges, but the parent is liable for all of them. A co-signer on a secured card or loan signs the contract agreeing to pay if the teenager does not, but the teenager is the primary account holder. Co-signing is a bigger commitment because the parent is legally responsible if the teenager defaults.

Can a teenager use a debit card instead of a credit card?

Yes. A debit card lets a teenager spend money they actually have without building credit. Debit cards are safer for learning to manage money because the teenager cannot overspend beyond their account balance. However, debit cards do not build credit history, so a teenager who only uses debit will have no credit score at 18.

What happens if the teenager maxes out the authorized user card?

The parent is responsible for paying the full balance. The parent can remove the teenager from the card when ready and set a lower credit limit if the card issuer allows it. This is a good time to have a conversation about spending and responsibility.