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Your first credit card

A first card is a tool for building credit, not extra money. Under 21, you need your own income or a cosigner. If you can't qualify yet, a secured card (backed by your own deposit) or being an authorized user on a parent's card can start your history, but only if the issuer reports to the credit bureaus. Then set autopay, keep the balance well under 30% of the limit, and pay in full so you never pay interest.

Moderate30 min to compare cards; 10 min to set up autopayFree if you pay in full; watch for annual and other feesChecked October 3, 2026

You'll need

  • Proof of your own income (a pay stub works) if you're under 21
  • Your checking account details for autopay
  • Two or three card offers to compare
  • Your credit reports from AnnualCreditReport.com

What to know

  1. Know why you want one. Paying on time, every time, builds a credit history, and good credit helps you get housing, bank accounts, cards and loans, and lowers what you pay in interest. Source: CFPB1 Debit cards, prepaid cards and cash don't build credit, because you aren't borrowing anything. Source: CFPB1
  2. Check whether you can qualify on your own. Card companies generally can't issue a card to anyone under 21 unless you can show an independent ability to make the payments, or someone 21 or older cosigns and agrees to be responsible if you don't pay. Source: CFPB3 A part-time job's pay stub counts as your own income.
  3. No income or no history yet? Look at a secured card. You put down cash, for example $500, and can spend up to that amount. Paying the bill restores your spending room. Source: CFPB1 Generally, the bigger the deposit, the higher the limit. Source: CFPB5 Many secured cards let you "graduate" to a regular card after a stretch of on-time payments. Source: CFPB5
  4. Or ask to be an authorized user. A parent can add you to their card. You get a card with your name on it, but only they are legally responsible for the bill. Source: CFPB5 It won't necessarily build your credit, because not every issuer reports authorized users to the credit bureaus, so ask first. Source: CFPB5 And if either of you runs up charges or misses payments, it can hurt the other's score too. Source: CFPB5
  5. Ask your bank or credit union what they offer. CFPB suggests asking your bank, credit union or a nonprofit credit counseling agency about cards and credit-builder loans made for people starting out. Source: CFPB1
  6. Compare the real costs before you apply. Look at the APR (the standard way to compare what borrowing costs), any annual fee, and whether there's a grace period on purchases. Source: CFPB4 Secured cards can carry several kinds of fees, so check whether you'd be approved for a regular card first. Source: CFPB5 Ask every issuer the same question: "Do you report to all three credit bureaus?"
  7. Apply for one card, not five. Applying for a lot of credit in a short time can look to lenders like you're having money trouble. Source: CFPB2
  8. Set up autopay the day the card arrives. CFPB suggests automatic payments or electronic reminders so you pay on time, every time, and says most scores treat payment history as the number one factor. Source: CFPB2 Set it for the full statement balance if you can, and at least the minimum. Source: FTC6
  9. Keep the balance low. Experts advise using no more than 30% of your total limit, and you don't need to carry a balance to get a good score. Source: CFPB2 On a $500 limit, that's $150 or less (made-up example).
  10. Pay the full statement balance by the due date. Most cards give a grace period on purchases, so paying in full by the due date usually means no interest. Source: CFPB4 If you pay only the minimum, you pay interest on the rest. Source: FTC6
Watch out Missing payments is the expensive mistake. If you don't pay at least the minimum, your interest rate might go up, you might have to pay fees, and it could damage your credit history. Source: FTC6 If you're more than 60 days late, the card company can raise the interest rate on all your balances. Source: CFPB4 And if autopay pulls from checking, keep enough there: an overdraft can mean a bank fee. Source: FTC6

See it done

Video by Khan Academy Nonprofit

Which credit card is better for you?

Full title on YouTube: “Which credit card is better for you? | Financial mathematics (TX TEKS) | Khan Academy”2024 · Checked October 3, 2026

Video won't load at school or work? No problem. Everything you need is in the steps; the video's just a bonus. Watch it on YouTube later.

If it doesn't work

  • Denied? Under 21, ask whether a cosigner is allowed, or start with a secured card from your bank or credit union. Source: CFPB3
  • A charge you didn't make, or a double charge? Write to the issuer at its billing-inquiries address so it arrives within 60 days of the first bill with the error. Federal law limits what you owe for unauthorized charges to $50. Source: FTC6
  • While a billing dispute is being investigated, you can hold off paying the disputed amount, but pay the rest of the bill. Source: FTC6
  • Carrying a balance you can't pay off? Pay more than the minimum, stop adding new charges, and see APR and interest in plain English and the credit card payoff calculator.
  • Thinking about a store card? They often come with low limits, which make it harder to run up a big bill. Source: CFPB1 Compare the APR before you sign up at the register.

Good to know

The details, if you want them. Tap a line to open it.

What the card company must do

Send your bill at least 21 days before the payment is due, credit your payment the day it arrives, and give you a written notice of your right to dispute billing errors. Source: FTC6 It also can't require you to pay by automatic debit. Source: FTC6

Your first six months (checklist)

Month 1: card arrives, set autopay for the full balance, put one small bill on it (like a phone or streaming bill). Every month: check the statement for charges you don't recognize. Month 6: pull your free credit reports and confirm the card shows up as paid on time. Keep the card open even after you get a better one, since a longer history helps.

Why keeping old cards can help

Scores look at how long you've managed credit, and closing cards can raise the share of your limit you're using if you have balances elsewhere. Source: CFPB2

Asking a parent (script)

"I want to start building credit. Would you add me as an authorized user? First, can we call the card company and ask whether they report authorized users to all three credit bureaus? I'll keep my spending under $100 a month and pay you back by the 1st."

What doesn't build credit

Payday loans don't help, even if you pay on time, because the payments usually aren't reported. Neither do prepaid cards. Source: CFPB1 See Payday loans and other expensive traps.

Take it with you

Printable cardDownload card (PDF)

Sources

  1. Consumer Financial Protection Bureau What are some ways to start or rebuild a good credit history?
  2. Consumer Financial Protection Bureau How do I get and keep a good credit score?
  3. Consumer Financial Protection Bureau Can a credit card company consider my age?
  4. Consumer Financial Protection Bureau Credit cards key terms
  5. Consumer Financial Protection Bureau Cosigning loans and sharing credit (teacher guide, PDF)
  6. Federal Trade Commission Using credit cards and disputing charges

Lesson M4.4 · Last checked October 3, 2026 against the sources listed.

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