How to build your child's credit before they turn 18 and why it matters
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Key Takeaways
When young adults apply for their first credit card, car loan, or apartment, they could be faced with higher interest rates, rejected rental applications, and years of catch-up building a credit history from scratch. However, there’s a way to help that most parents don’t know about. Adding your child as an authorized user on your credit card can give them a head start on their credit history. When they need credit at 18 or 22, it’s already there. They’ll still need to build their own credit, but this can help them get a financial head start.
Continue reading to learn how to build your child’s credit, why it matters, and how to access your child’s credit report.
3 clever ways to build your child’s credit
There are only a few ways to build a minor’s credit, some better than others. Since children under 18 can’t open most credit accounts on their own, the strategies available rely on a parent’s existing credit or direct involvement.
1. Adding your child as an authorized card user
The easiest option for most minors is also one of the fastest ways to move the needle on their credit report. Most major issuers allow authorized users as young as 13, and some have no minimum age requirement at all.
When you add your child as an authorized user on your credit card, the account’s full history will likely appear on their credit report. If you’ve held the card for years and paid on time, your child benefits from that track record quickly.
How to get started
It takes about 10 minutes to set up. Some parents add the child for the credit benefit only and choose not to have a card issued in their child’s name. You can always give them access to the card later if you’re unsure.
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Call the number on the back of your card or log into your account online
Provide your child’s name, date of birth, and Social Security number
Choose whether to request a physical card for your child or not
Set a spending limit if your issuer allows it
Monitor the account and look at statements together
The bottom line: Your payment behavior affects your child’s credit too. One missed payment or a high balance on your end will show up on their report. Keep the account in good standing, and it works in both of your favor.
2. Secured credit card with a parent co-signer
Some credit card issuers allow minors to open a secured credit card with a parent as co-signer. A secured card requires a cash deposit that becomes the card’s credit limit. The child uses the card for small purchases and pays the balance each month, building a payment history in their own name.
How to get started
Find an issuer that allows minors to have accounts with co-signers. Not all do, but credit unions are often a good bet.
Make the deposit, which is usually $200–$500 upfront. This amount is the card’s credit limit, it’s refundable when the account is closed or upgraded.
Apply together. A parent or guardian will co-sign the application, either online or in person. ID and financial information for both parties is required.
The bottom line: This option gives your child more direct ownership of their credit-building, but it requires more setup and financial commitment upfront. It’s a strong supplementary option, especially for teens who are ready for more responsibility.
3. Credit-builder loan with a co-signer
Some credit unions and community banks offer credit-builder loans to minors with a parent co-signing. These work differently from traditional loans but similar to secured cards. Borrowers learn how to save, how to be responsible for monthly payments, and how making those payments reflects on their credit reports.
Loan amounts typically range from $500–$2,000.
The borrower does not receive loan proceeds. This is purely to build credit.
The borrower makes fixed monthly payments for 6 to 24 months.
The fixed monthly payments are added to a locked savings account.
Once the loan is paid off, the borrower has access to their savings account with the amount of their loan plus interest.
The payment history is reported to the credit bureaus, building their score over time.
How to get started
Find a lender that offers this type of loan. Credit unions and community banks are good places to start.
Provide IDs and Social Security numbers for yourself and your child.
Make the monthly payments on time. Consistency is what builds a credit history.
The bottom line: It’s a low-risk way to add an installment loan to your teen’s credit mix, providing they can make the payments. This can strengthen a profile that otherwise only has credit card history while enforcing financial literacy.
Why start building credit early?
Your teen’s credit score doesn’t have to start at zero. When you begin building their credit history early, it has more time to grow. A teen who starts building credit at 16 could have a two-year history by the time they sign their first lease. One who starts at 22 is still building from scratch when they need a credit history the most.
Here’s why building credit before turning 18 matters.
Time works in their favor. Credit scoring agencies like to see history when determining creditworthiness. By starting early, your child builds years of on-time payments, which boosts their overall FICO or VantageScore.
They’ll have a smoother path through the “firsts.” Landlords check credit before approving leases, and lenders use it to set interest rates on some student and all auto loans. Strong credit going into these “adulting” moments could mean fewer rental rejections and better loan terms.
They may have an advantage when job hunting. Some employers review credit reports to assess a candidate’s financial responsibility, particularly in roles handling finances or sensitive data.
Insurance companies may charge lower premiums. Insurers often use credit-based insurance scores to price auto, rental, and homeowners policies. Better credit could mean lower premiums.
You’ll help strengthen their financial literacy: Adding your child as an authorized user gives you a chance to teach real money skills in a low-stakes environment.
Kids who benefit from this early head start learn:
How to track and categorize spending
Why keeping balances below 30% of their credit limit (their utilization ratio) matter
What happens when you pay on time every month
What about waiting until 18?
Once your child turns 18, they can apply for student credit cards, secured cards in their own name, and credit-builder loans without a co-signer. Starting at 18 means starting from zero, but a child who enters adulthood with two or three years of credit history and knowledge is in a better position than one who is applying for their first credit card at a freshman orientation table.
The credit-building options available before age 18 are meant to prevent that gap. With an authorized user status as the foundation and a secured card or credit-builder loan as reinforcement, your child could have a credit profile that some adults might envy by the time they graduate high school.
When can you see your teen’s credit report?
Building your child’s credit can’t be rushed, but the results may come faster than you think. Here’s a realistic picture of what the process looks like from start to finish.
How long it takes to see results
Once you add your child as an authorized user, the account should appear on their credit report within 30–60 days. While some issuers report authorized users immediately, others take a full billing cycle.
Where to see results
To check whether the account is showing up, you can pull your child’s credit report for free at AnnualCreditReport.com, which provides reports from Equifax, Experian, and TransUnion credit reporting agencies. It’s worth checking all three, since they are the main ones, but not every issuer reports to every bureau.
If you’re looking for ongoing visibility rather than a once-in-awhile check, Greenlight Family Shield lets parents track their child’s credit profile in real time, so you’re not waiting until something goes wrong to find out.
Why should teens look at their credit report?
See directly how on-time payments show up and what a missed one looks like.
Understand how utilization affects their credit score in real time.
Learn what “credit mix” means by seeing their own account types laid out.
Recognize that credit reports change every month or sooner based on behavior.
Understand that lenders see the same report they’re looking at, which can make the stakes feel real.
Keep building your child’s path to a bright financial future
Greenlight is built specifically for kids and teens, combining everyday money management with financial literacy. Used with one of the credit-building options discussed here, Greenlight’s credit building education and credit monitoring§§ feature with Family Shield gives parents visibility and control while teaching kids the habits that make credit work for them long-term.
Looking for family-friendly options to help your child get a strong start? Learn more about Greenlight today — the all-in-one financial management app and debit card for kids and teens.
§§Premium monitoring services are offered by Array US, Inc. and/or its affiliates.
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