You can start building credit as young as 13 by being added as an authorized user on a parent’s or guardian’s credit card, but you generally cannot open a credit account in your own name until you turn 18. Two states push that age higher: Alabama and Nebraska set the age of majority at 19, and Mississippi sets it at 21. On top of that, federal law bars credit card issuers from approving anyone under 21 without either proof of independent income or a qualified cosigner.
Getting Added as an Authorized User Before 18
The earliest practical way in is to piggyback on an existing account. When a parent or guardian adds you as an authorized user, you receive a card in your name, and the account’s payment history and credit limit show up on your credit report. Both FICO and VantageScore factor authorized-user accounts into their calculations, so a clean account can give you a running start.
Minimum ages vary by issuer. American Express and U.S. Bank allow authorized users as young as 13. Discover’s minimum is 15. Wells Fargo requires authorized users to be at least 18. Bank of America, Capital One, Chase, and Citi do not publicly specify a minimum age.
A few conditions decide whether this actually helps you. The primary cardholder stays fully responsible for every charge, including yours, and any late payments they make will land on your report too. Before agreeing to be added, confirm with the issuer that it reports authorized-user activity to all three major bureaus (Equifax, Experian, and TransUnion). Without that reporting, the credit-building benefit disappears.
Opening Your Own Account at 18
To sign a credit contract in your own name, you need to have reached the age of majority in your state. That is 18 in 47 states, 19 in Alabama and Nebraska, and 21 in Mississippi.
Reaching that age is necessary but not always sufficient. The Credit CARD Act of 2009 adds a second gate for credit card applicants under 21: the issuer cannot open the account unless your 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 any charges you make before you turn 21.
Emancipated minors sit in a narrow zone. A court-granted emancipation generally lets a minor enter into contracts and manage their own finances, but issuers are not required to approve those applications, and many still want an adult cosigner.
What to Have Ready When You Apply
Applications are available on lender websites or at branches. Before you submit, gather:
- Social Security Number or ITIN, which the lender uses to open and report your credit file at the bureaus.
- A government-issued photo ID: driver’s license, state ID, or passport.
- Proof of income such as recent pay stubs, a W-2, or tax returns. Applicants under 21 need this to satisfy the CARD Act, or they need a qualified cosigner.1Office of the Law Revision Counsel. 15 U.S. Code 1637 – Open End Consumer Credit Plans
- A residential address matching a utility bill or lease.
Check every field before submitting. A name that does not exactly match your ID can trigger an automatic rejection.
Secured Credit Cards
A secured card is one of the most accessible tools for building credit from scratch. You put down a refundable cash deposit, and the issuer gives you a credit line usually equal to that deposit. From there it functions like any other credit card: purchases, monthly statement, payment. The issuer reports your activity to the bureaus, and that reporting is what builds your history.2Consumer Financial Protection Bureau. What Are Some Ways to Start or Rebuild a Good Credit History
Most secured cards require a deposit of $200 to $300, though some issuers offer lower entry points if you meet certain criteria. The deposit is collateral, not a fee. You get it back when you close the account in good standing or when the issuer upgrades you to an unsecured card. That upgrade tends to follow a stretch of on-time payments and low balances, but each issuer sets its own review schedule.
To get the most out of a secured card, keep your balance below 30 percent of the credit limit. Below 10 percent is better still for your score.
Credit-Builder Loans
A credit-builder loan runs the traditional loan structure backward. Instead of handing you money upfront, the lender parks a small amount, typically $300 to $1,000, in a locked savings account. You make fixed monthly payments over six to 24 months, and the lender reports each one to the bureaus as a standard installment loan. When you finish paying, the lender releases the funds to you, minus any interest and fees.3Consumer Financial Protection Bureau. Targeting Credit Builder Loans Practitioner Guide
Consumer Financial Protection Bureau research found that borrowers with no existing debt gained the most, with credit scores rising by an average of up to 60 points. Borrowers who already carried other debts benefited less, and some saw slight score decreases, likely because the added monthly payment was harder to manage alongside existing obligations.3Consumer Financial Protection Bureau. Targeting Credit Builder Loans Practitioner Guide Credit unions and community banks are the most common sources.
Rent Reporting and Other Tradelines
Rent does not automatically appear on your credit report, but a rent-reporting service can put it there. The service collects your monthly rent, forwards it to your landlord, and reports the payment to one or more bureaus. The newer scoring models, FICO Score 9 and later and VantageScore 4.0 and later, include reported rent payments in their calculations. Before signing up, check which bureaus the service reports to and what it charges each month, because both vary.
Some utility and telecom companies offer similar reporting of on-time payments, though it is less standardized. Pairing a secured card or credit-builder loan with a rent-reporting service creates multiple active tradelines the scoring models can evaluate, which speeds things up.
How Long Until a Score Actually Appears
Opening an account does not immediately produce a score. FICO requires at least one account that has been 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 conditions.4myFICO. What Are the Minimum Requirements for a FICO Score VantageScore can generate a score sooner, sometimes within one to two months of the first reported activity, depending on when your lender sends data to the bureaus.
The habits you set in those first months carry disproportionate weight. Payment history is the largest single factor in both FICO and VantageScore. Pay every bill on time, keep balances low relative to your limit, and resist opening several new accounts at once. That baseline is what lenders will see when you eventually apply for a car loan, a rental, or a mortgage.