You can start building credit as young as 13 if a parent adds you as an authorized user on their credit card, but you generally can’t open your own credit account until you turn 18, and if you apply before 21 federal law requires you to show independent income or bring in a cosigner. When you can start building credit really depends on which of those doors you walk through first.
Starting Before 18 as an Authorized User
The earliest practical way to begin a credit history is to be added as an authorized user on someone else’s credit card, usually a parent’s or guardian’s. You get a card in your name, and the account’s payment history and credit limit appear on your credit report. Both FICO and VantageScore factor authorized-user accounts into their calculations, so a well-managed account gives you a head start before you ever apply for anything yourself.
The minimum age depends on the issuer. American Express and U.S. Bank allow authorized users as young as 13. Discover sets its minimum at 15. Wells Fargo requires 18. Bank of America, Capital One, Chase, and Citi don’t publicly specify a minimum age.
Two things are worth knowing before you set this up. The primary account holder stays fully responsible for every charge, including yours, so this works only if that person pays on time and keeps balances low — negative history flows to your report the same way positive history does. And the credit-building benefit depends entirely on the issuer reporting authorized-user activity to Equifax, Experian, and TransUnion. Confirm that before you’re added.
When You Can Open Credit in Your Own Name
To sign for a credit card or loan yourself, you have to reach the age of majority in your state — the age at which you can enter a binding contract. In 47 states that’s 18. Alabama and Nebraska set it at 19. Mississippi sets it at 21.
Reaching the age of majority isn’t the whole story for credit cards. Under the Credit CARD Act of 2009, no issuer can open a credit card for anyone under 21 unless the application shows either enough independent income to repay the debt, or the signature of a cosigner who is at least 21 and financially able to cover the balance.1Office of the Law Revision Counsel. 15 U.S. Code 1637 – Open End Consumer Credit Plans A cosigner takes on joint liability for anything you charge before you turn 21.
Emancipated minors are a narrow exception. A court-granted emancipation generally lets a minor enter contracts and manage their own finances, but credit card issuers aren’t required to approve those applications, and many still want an adult cosigner.
Your First Credit Account: Three Practical Options
Once you can apply in your own name, three tools are built specifically for people starting from zero.
Secured Credit Cards
A secured card is one of the most accessible ways to build credit from scratch. You put down a refundable cash deposit, and the issuer gives you a credit line usually equal to that deposit. You use the card normally — purchases, monthly statement, monthly payment — and the issuer reports your activity to the credit bureaus, which is what builds the history.2Consumer Financial Protection Bureau. What Are Some Ways to Start or Rebuild a Good Credit History
Most secured cards require a deposit between $200 and $300. The deposit isn’t a fee. It’s collateral, and you get it back when you close the account in good standing or when the issuer upgrades you to an unsecured card. That upgrade happens after a stretch of on-time payments and low balances, though each issuer runs its own review schedule. To get the most out of the card while you have it, keep your balance below 30 percent of the limit. Below 10 percent is better.
Credit-Builder Loans
A credit-builder loan works backwards from a normal loan. The lender sets aside a small amount, typically $300 to $1,000, in a locked savings account. You make fixed monthly payments over six to 24 months, and each one is reported to the bureaus as an installment loan payment. When you’ve paid the full amount, the lender releases the funds (minus interest and fees) to you.3Consumer Financial Protection Bureau. Targeting Credit Builder Loans Practitioner Guide
Research by the Consumer Financial Protection Bureau found the biggest gains went to borrowers with no existing debt, whose scores rose by an average of up to 60 points. Borrowers already carrying other debts benefited less, and some saw slight decreases, likely because the added monthly payment was harder to fit alongside existing bills.3Consumer Financial Protection Bureau. Targeting Credit Builder Loans Practitioner Guide Credit unions and community banks are the most common source.
Rent Reporting
Rent payments don’t automatically show up on your credit report, but a rent-reporting service will forward each month’s payment to one or more credit bureaus. FICO Score 9 and later and VantageScore 4.0 and later both factor reported rent into their calculations. Before signing up, check which bureaus the service reports to and what it charges. Some utility and telecom companies offer something similar for on-time payments, though it’s less standardized.
If you want a score as quickly as possible, pairing a secured card or credit-builder loan with rent reporting gives the scoring models more than one active tradeline to look at.
How Long Until You Actually Have a Score
A credit score doesn’t appear the day you open an account. FICO requires at least one account open for six months or more, and at least one account reported to the bureau within the past six months. A single account can satisfy both.4myFICO. What Are the Minimum Requirements for a FICO Score VantageScore can produce a score sooner, sometimes within one to two months of your first reported activity, depending on when your lender sends data to the bureaus.
Whatever route you take, the habits you set in those first months carry unusual weight, because there’s so little history to average them against. Payment history is the single largest factor in both FICO and VantageScore. Pay every bill on time. Keep balances low against your limit. Don’t open several accounts at once — each application triggers a hard inquiry, and on a thin file a small point drop matters more than it would on an established one. Checking your own report, or using a pre-qualification tool, doesn’t count as a hard inquiry.
The score you build in year one is the baseline lenders will look at when you apply for a car loan, a lease, or a mortgage later. Steady, boring use of a single starter account does more for that number than any clever strategy.