How it works
The primary cardholder asks the issuer to add you, usually online or by phone, and provides your name and date of birth. Some issuers also ask for your Social Security number. You are usually not liable for the debt, though rules differ in community property states and for some card agreements, so read them. The primary holder stays responsible for all charges.
If the issuer reports authorized users, the account appears on your credit file, often with its full history. That could give you a score sooner than if you were starting from nothing, and it can add years to your average account age.
What helps and what can hurt
- Good: an old account, a perfect payment record and a low balance compared with its limit.
- Bad: recent late payments, a balance close to the limit or an account in collections.
- Unclear: some scoring models may discount accounts that seem to be rented out, though ordinary family arrangements are normal.
- Worth checking: whether the issuer reports to all three bureaus, as some might not.
Talk openly with the cardholder before you are added. You do not need to see their finances in detail, but you should know whether the account is paid on time and generally kept low. If anything changes, ask them to tell you so that you can be removed right away.
How lenders see it
Scoring models usually count authorized user history. A human underwriter may look closer. Mortgage lenders in particular may set these accounts aside and judge you on accounts in your own name, and Fannie Mae's rules allow for some adjustment when the account belongs to a spouse or relative. Card issuers may simply see it as one line on your report.
That means authorized user status is a good start, but not a full plan. After a few months, consider adding a primary account of your own. A secured card or a credit builder loan that reports to all three bureaus shows that you, and not just the cardholder, can handle credit.
Steps to get started
- Pick the card: ideally several years old, no late payments, low balance.
- Call the issuer: confirm it reports authorized users and any age rules.
- Decide about the plastic: you do not need to carry or use the card for the account to report.
- Set rules: agree on spending in advance, or agree there will be none.
- Check your reports: look at AnnualCreditReport.com after about 60 days to confirm it appears and the details look right.
- Plan your exit: ask to be removed if the account turns negative.
If something goes wrong
If the card falls behind, ask the primary holder or the issuer to remove you. Once you are off, you can ask the bureaus to delete the account from your file, as it is not your debt. A dispute with proof of your removal normally handles this. Your score may shift, either way, so it makes sense to have your own account open by then.
Questions people ask
How long before it shows up?
Often within one or two billing cycles after you are added, but it depends on when the issuer sends its reports.
Does the primary cardholder's score go down?
Adding a user generally does not affect it. Their score could only move if spending on the account raises the balance.
Can you be removed at any time?
Yes. Either you or the cardholder can usually ask the issuer to remove you, and the account normally drops off your file later on.