Can an Authorized User Be Under 18?

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What Is an Authorized User in Simple Terms?

An authorized user is someone added to a credit card account by the primary cardholder, giving them permission to use the credit card for purchases. However, the authorized user is not legally responsible for the bill; the primary cardholder is. This means if the authorized user makes charges, the primary cardholder must pay them. For example, a parent might add their teenage child as an authorized user to help them learn spending habits or start building a credit history without applying for a card themselves.

The authorized user typically receives a credit card with their name on it, allowing them to shop in stores or online. The credit card issuer reports the account activity to credit bureaus under the primary cardholder’s name and, if the issuer allows, under the authorized user’s name as well. This reporting can help the authorized user build credit history, which can be beneficial when they apply for credit on their own in the future.

Adding an authorized user does not give them the ability to manage the account, such as changing credit limits or making payments. The primary cardholder controls the account and remains fully responsible for payments. Understanding this distinction helps avoid misunderstandings about liability and control.

How Does Adding an Authorized User Under 18 Work?

Adding an authorized user under 18 depends on the credit card issuer’s policies. Many issuers allow authorized users as young as 13 or even younger, but some require the authorized user to be at least 18. Before adding a minor, check the issuer’s specific rules, as they can vary widely.

For example, if a parent adds their 14-year-old child as an authorized user on their credit card, the child can use the card for purchases, but the parent must pay the bill. If the issuer reports authorized user activity to credit bureaus, the child’s credit report will show the account activity, helping them start credit history early.

Here is a hypothetical example: Suppose a parent with good credit adds their 15-year-old as an authorized user on a credit card with a $2,000 limit. The child uses the card occasionally for small purchases like school supplies or gas, and the parent pays the bill on time. Over time, the child’s credit report reflects this activity, potentially increasing their credit score when they apply for credit themselves later.

Some issuers require the authorized user to have a Social Security number (SSN) or Individual Taxpayer Identification Number (ITIN) to report the credit activity, which can be a barrier for younger children. Others do not require an SSN but may limit reporting or benefits.

Why Does It Matter to Have an Authorized User Under 18?

Adding an authorized user under 18 can provide several benefits, especially for families looking to teach financial skills or help young people start building credit history. Early credit history can make it easier for the authorized user to qualify for credit cards, loans, or even rent apartments when they reach adulthood.

For example, a teenager added as an authorized user who demonstrates responsible use can have a positive credit history by age 18, improving their chances of approval for their own credit cards. Besides credit building, it offers a chance for parents to monitor spending and have conversations about budgeting, saving, and credit use.

However, it also matters because the primary cardholder is responsible for all charges, including those made by the authorized user. Without careful monitoring and clear rules, unauthorized or excessive spending can lead to debt and damage credit scores for both parties.

Another important consideration is that some credit card issuers may not report authorized user accounts for minors to credit bureaus, limiting the credit-building benefits. Knowing how your issuer handles this is important before adding a minor.

What Are Common Age Requirements and Variations by Issuer?

Credit card issuers set their own minimum age requirements for authorized users. Below is a table with typical minimum ages for some major issuers:

Many issuers require a Social Security number or similar identification for authorized users, regardless of age. Without this, they may not report the authorized user’s activity to credit bureaus, limiting the credit-building benefit.

Always check with your specific credit card issuer before adding an authorized user under 18. This can usually be done by calling customer service or checking the issuer’s website. Policies can change, so confirm current rules.

How Is an Authorized User Different from a Joint Account Holder?

It’s common to confuse authorized users with joint account holders, but they are very different. An authorized user has permission to use the credit card, but they do not have legal responsibility to pay the bill. The primary cardholder retains full control and responsibility.

In contrast, a joint account holder shares equal responsibility for charges and payments. Both parties are legally liable, and their credit histories reflect full ownership of the account. Minors cannot typically be joint account holders because of legal contract age requirements.

For example, a parent adding a teenager as a joint account holder would generally not be allowed, but adding them as an authorized user is common. Authorized user status allows parents to supervise and manage the credit use while helping their child learn money management.

This distinction matters because it affects liability, credit reporting, and financial responsibility. Authorized users can benefit from credit history without legal obligations, while joint account holders share full responsibility.

What Should You Do Before Adding a Minor as an Authorized User?

Before adding a minor as an authorized user, follow these steps:

1. Check the credit card issuer’s policy: Confirm the minimum age, documentation requirements, and whether authorized user activity is reported to credit bureaus.
2. Discuss spending rules with the minor: Set clear expectations on what types of purchases are allowed and spending limits if possible.
3. Set up account alerts: Use issuer tools or banking apps to receive notifications for purchases or balance updates.
4. Monitor the account regularly: Review statements carefully for unauthorized or unexpected charges.
5. Ensure the minor has a Social Security number if required: This is necessary for reporting credit activity in many cases.
6. Understand your legal and financial responsibility: Remember that you are fully liable for all charges made by the authorized user.

For example, you might say to your child: "You can use this card for school supplies and gas only. If you want to buy anything else, ask me first." This agreement helps build trust and financial discipline.

What Are the Next Steps If You Want to Add an Authorized User Under 18?

If you decide to add a minor as an authorized user, here is a step-by-step plan:

• Contact your credit card issuer’s customer service to ask about adding an authorized user under 18. Confirm required information like name, date of birth, and Social Security number.
• Submit the authorized user’s details through your issuer’s website or over the phone.
• Request spending controls or alerts, if your issuer offers them, to help manage the authorized user’s activity.
• Give the authorized user their own card linked to your account.
• Review monthly statements together to discuss spending and credit management.
• Remove the authorized user if necessary: If misuse occurs, you can remove an authorized user at any time by contacting your issuer.

For parents or guardians unsure about adding a minor, waiting until the child turns 18 is also an option. Young adults can then apply for their own credit cards and build credit independently.

Frequently asked questions

Can an authorized user under 18 build credit?

Yes, if the credit card issuer reports the account activity to credit bureaus under the authorized user’s name. This can help the minor build credit history early, but some issuers do not report authorized users under 18, so check with your issuer.

What is the typical minimum age for an authorized user?

Many issuers allow authorized users starting around age 13, but some require 15, 16, or 18. Policies vary, so confirm with the credit card company.

Does an authorized user under 18 need a Social Security number?

Often yes, especially if the issuer reports credit activity to bureaus. Without an SSN or ITIN, some issuers may not add or report the authorized user.

Can an authorized user make payments on the credit card?

Usually no. Authorized users can make purchases, but only the primary cardholder can make payments or manage the account.

What happens if my child misuses the credit card as an authorized user?

The primary cardholder is responsible for all charges. If misuse occurs, contact the issuer to remove the authorized user and consider setting spending limits or monitoring alerts.

Should I add my child as an authorized user before they turn 18?

Adding a minor can help build credit and teach financial responsibility, but requires careful monitoring. Waiting until 18 means the child can apply for credit independently without legal or reporting restrictions.