The New York Fed’s quarterly household debt report came out yesterday, and the age breakdown is the part every parent of a college freshman should see. Over the past year, 10.08% of credit card balances held by 18 to 29 year olds moved into serious delinquency, meaning 90 days or more past due. Across all ages, it was 7.00%. Young adults are the group most likely to fall behind on cards, and move-in week is when the card offers start, which is why the authorized user route for college students deserves a look first.
If your kid is leaving for campus this month, my suggestion is to skip the student card for now. Add them as an authorized user on one of your oldest, cleanest cards instead, and set it up so they build a credit file without much room to run up a balance. Becoming an authorized user is the faster way for a college student to build credit, as long as you understand that your habits become part of their record.
Why an 18-year-old’s first card is harder to get than it looks
The Credit CARD Act of 2009 changed the rules for young applicants. Under Regulation Z, a card issuer can’t open an account for someone under 21 unless the applicant shows independent means to make at least the minimum payment, or has a cosigner over 21 who can. A freshman with a part-time campus job may qualify for a small limit. Many won’t qualify at all on their own.
The law also limits how issuers can market to students. They can’t offer gifts or other inducements to apply on campus, within 1,000 feet of campus, or at a college-sponsored event. Credit bureaus generally can’t hand over a young person’s report for prescreened offers unless the consumer agrees. Those protections followed years of aggressive on-campus card marketing, and together with the income rule they explain why student cards tend to come with small limits.
Cosigning is the obvious workaround, and it’s the one I’d avoid. A cosigner is fully responsible for the debt, and under the same rules, the issuer can’t raise the limit on a cosigned card unless the cosigner agrees to take on the increase. You’d be carrying all of the risk of a loan without much control over how the card is used.
How being an authorized user builds a college student’s credit file
An authorized user gets a card on your account but isn’t legally responsible for paying the balance. The account, including its age, limit, and payment history, typically shows up on the authorized user’s credit report too. Most mainstream scoring models count it.
That’s how a lot of people get their start. A CFPB study of how consumers first become “credit visible” found that almost 80% did so before age 25, and 9.6% got their first credit record by being added as an authorized user. Another 15% opened their first account with a co-borrower. Roughly one in four people started their credit history on an account someone else was also responsible for.
The advantage over a brand-new student card is that you’re lending your child your history. A student card opened this month starts at zero years old. Your card from 2012 is already 14 years old.
A worked example: one parent card, one student card
Say you have a card you opened in 2012 with a $12,000 limit, and you usually carry about a $600 statement balance that you pay in full. Your daughter opens a student card this month with a $500 limit and runs a $300 balance by the end of September.
On her own, her credit file has one account that’s zero years old and is 60% utilized. Utilization, the share of your available credit you’re using, is one of the biggest factors in a score, and 60% looks risky to any scoring model.
Add her as an authorized user on your 2012 card and her file now has two accounts. The average age is seven years: zero plus 14, divided by two. Her total balances are $900 against $12,500 of limits, which works out to 7.2% utilization. Both numbers look much better to a lender, and she didn’t have to do anything except avoid running up the new card.
Now the catch. If your own balance on that card climbs to $6,000 one month, her combined utilization jumps to 50.4%, even though she didn’t spend a dollar of it. A late payment on your account can show up on her report too. You’re sharing your credit habits with your kid for better and for worse, so only add them to a card you pay on time and in full.
Set it up so your student builds credit, not debt
You don’t have to hand over a working card. Many issuers let you add an authorized user without sending them a physical card, and some let you set a spending limit for the authorized user that’s lower than the account’s limit. Either option gets the credit-building benefit while limiting the damage if something goes wrong. Call your issuer and confirm two things before you add anyone: that it reports authorized users to all three credit bureaus, and what controls it offers.
If you do give your student a card, treat it like a training account. Agree on what it’s for, perhaps textbooks and gas, and check the statement together for the first few months. Teach the habit that matters most: the statement balance gets paid in full every month. The guide to your statement closing date and credit utilization explains why the date your issuer reports a balance matters as much as how much you spend. And if your student starts eyeing pay-in-four apps for dorm furniture, the post on buy now, pay later and credit scores covers why those plans don’t build a credit file the way people think.
When to add the student’s own card
After six months to a year as an authorized user, your student will have a credit file with some age on it and a record of on-time payments. That’s a reasonable time for them to apply for their own card, ideally a no-annual-fee card with a modest limit that they can qualify for with income from a job. Leave them on the authorized-user account in the background for a while; removing them can take that older account off their report and shorten the average age of their accounts.
Credit card balances across the country reached $1.263 trillion in the second quarter, up $54 billion from a year earlier, according to the New York Fed. Young adults are on the wrong end of the delinquency numbers. Making your college student an authorized user gives them a head start on a credit file before they’ve had a chance to make a mistake on their own, and it lets you set the guardrails while they learn.
Sources: Federal Reserve Bank of New York, Household Debt and Credit Report, Q2 2026; CFPB, Becoming Credit Visible; Federal Reserve Consumer Compliance Outlook on CARD Act rules for young consumers
