Building Credit as a Teen—Legally

You can start building credit before you can vote

Most people do not think about credit until they need it, a first apartment, a car loan, a credit card application. Before age 18, the main legitimate route is becoming an authorized user on a trusted adult's account; a minor generally cannot open an individual credit card. At 18, a young adult may apply for credit, but federal rules add ability-to-pay or cosigner requirements for applicants under 21.

Here are the main legitimate ways teens build credit:

1. Become an authorized user on a parent's credit card

This route does not make the teen responsible for the bill. A parent or other trusted adult adds the teen to a card account. Issuer reporting practices vary, so ask whether authorized-user information is reported to Equifax, Experian, and TransUnion.

Important caveats: This only works if the account has a good payment history. If the parent misses payments, that negative mark can appear on your report too. Have a conversation about account health before asking to be added.

2. After turning 18, compare secured credit cards

A secured credit card requires a refundable cash deposit that generally sets the credit limit. It is still a credit card, not a prepaid card. Before applying, confirm the fee schedule and whether the issuer reports to all three nationwide bureaus. Paying the statement balance in full by the due date avoids interest on purchases when the card provides a grace period.

An applicant must be old enough to enter the contract. Under federal rules, an applicant younger than 21 must generally show an independent ability to make the required payments or have a cosigner, guarantor, or joint applicant who is at least 21 and can pay.

3. Credit-builder loans

Some credit unions offer credit-builder loans to adults with limited credit history. The lender typically holds the loan proceeds while the borrower makes payments, then releases funds according to the agreement. Compare the annual percentage rate, fees, reporting practices, and eligibility before using one.

4. Report rent and utility payments

If you are paying rent (living independently or contributing to household expenses), services like Experian Boost, RentTrack, and CreditMyRent can report those on-time payments to credit bureaus. Utility and phone bills can also be added through Experian Boost at no cost. These are alternative data sources that do not normally appear on credit reports but can help people with thin files.

What to do with your card once you have it

The goal is not to use credit to buy things you cannot afford. The goal is to create a record of reliable repayment. Use the card for one small, regular purchase per month, a streaming subscription, gas once a month, a grocery run. Set up autopay for the full balance. Never carry a balance. The card should feel boring and automatic.

Credit utilization is the share of revolving limits reported as balances. Lower utilization is generally better, but 30% is not a scoring cliff. Paying the statement balance in full and keeping spending well within the budget matter more than aiming for a supposedly perfect percentage.

What to avoid

• Applying for multiple cards at once, each application is a hard inquiry
• Missing a payment for any reason, set up autopay
• Cosigning for someone else's debt as a teen, if they default, it damages your credit
• Store credit cards with high interest rates that encourage carrying balances

Start boring, win later

Building credit never requires spending money you do not have or paying interest. Before 18, authorized-user status on a well-managed account may help if the issuer reports it. At 18 or older, compare fees and eligibility before applying for your own product, then pay every amount due on time. Results vary by report and scoring model.