What Is a Student Loan and How Do Student Loans Work?

A student loan is money you (or your parents) borrow from the federal government or a private lender to pay for education, then repay with interest. Most families end up needing one, not because college is unaffordable outright, but because the real cost is almost always higher than the number on a school's website.

That gap is easy to underestimate. In-state tuition and fees at a public four-year school average $11,950, but once you add housing, food, books, and transportation, the actual first-year cost climbs to $30,990, and $65,470 at a private nonprofit school. It's a big enough gap that it shows up nationally too: about 42.6 million Americans currently hold roughly $1.7 trillion in federal student loans combined.

Expert Take: Don't rely on the tuition page to estimate what you'll owe. Use the school's net price calculator instead. It accounts for the full cost of attendance and your likely financial aid, so the number you get is much closer to reality.

A student loan is money you borrow to pay for education costs like tuition, room and board, fees, books, and other living expenses. Student loans are a form of installment loan, with fixed interest and terms for repayment, and you can take out federal or private loans.

The type of loan will impact your rate, your repayment options, and whether you'll need a cosigner, so understanding the difference between the two is critical.

From My Experience: I borrowed both federal and private student loans for my undergraduate and graduate degrees, and the federal loans were far easier to live with. The six-month grace period gave me time to find work before the first bill arrived, and the longer repayment terms kept the monthly payment at a number I could actually manage. That protection came automatically, I didn't have to ask for it or qualify for it.

My private loans required a co-signer, which I had. I paid my loans off (slowly), but I know parents today who co-signed for a child and ended up carrying the balance themselves, right into retirement, which can be a risky time for some families to take on additional debt.

Federal student loans follow a clear path from application to repayment. Understanding a few basic steps in the process can help you prepare, although always speak directly to your loan servicer if you have questions.

1. Complete the FAFSA: Schools use this to determine what loans, grants, and work-study you qualify for. You (or your parents) fill it out each year using the previous year's tax information.

2. Review your financial aid offer: Your school will offer a package that may include grants, work-study, and eligible loans. Grants and scholarships don't have to be repaid, though scholarships may come with conditions.

3. Accept only what you need: You can accept all, some, or none of the loans offered. First-time borrowers also complete entrance counseling and sign a Master Promissory Note.

4. Funds are disbursed to your school: Money goes directly to your school, applied first to tuition, fees, and room and board. Leftover funds are refunded to you within 14 days for other costs like books or rent, though with Parent PLUS loans, that refund goes to the parent unless they authorize the school to send it to the student.

5. Repayment begins after your grace period: Payments typically start six months after you graduate, leave school, or drop below half-time.

What You Need to Know: A good rule of thumb, according to the Consumer Financial Protection Bureau, is to avoid borrowing more in total student debt than you expect to earn in your first year of work after school. That's not always realistic, but it's a useful starting point when deciding how much to borrow.

Federal loans come from the U.S. Department of Education with standardized terms set by law, while private loans come from online lenders, banks, and credit unions. Here's how federal direct subsidized and unsubsidized loans compare with private student loans:

Most student loan experts agree it's worth exhausting grants, scholarships, and federal loans before turning to private ones, since federal loans carry fixed rates and built-in borrower protections that private loans typically don't.

If there's still a gap after that, comparing private student loan options can help you cover the difference, look for the best rate and terms you can find.

Direct Subsidized Loans for Undergraduates

Direct Subsidized loans go to undergraduates with financial need, based on your FAFSA. The government pays the interest while you're in school at least half-time and during your grace period, which is why you accept these first.

Your college or university will determine the amount you can borrow, which may not be larger than your financial need to attend. Graduate students don't qualify for subsidized loans.

Federal Parent PLUS Loans

A federal Parent PLUS loan is a type of Direct PLUS loan that lets parents help their dependent undergraduates cover costs other aid doesn't. These loans require a limited credit check, meaning the underwriter looks only at adverse credit history, which makes them easier to qualify for than most private loans.

• Interest rate: A fixed 9.07% for the 2026-27 school year, subject to change annually, according to Federal Student Aid.

• Borrowing limit: Parents could once borrow up to the full cost of attendance, but 2026 rules capped Parent PLUS at $20,000 per year and $65,000 per student across all four years.

• Who the cap applies to: The cap follows the student, not the parent.

For example: If you and your spouse both want to borrow for your eldest child, you share a single $20,000 allowance for the year, so if one of you takes the full amount, the other can't borrow more for that child. But if you also have another child in college, they come with their own separate $20,000 and $65,000 limits.

Expert Opinion: Think Hard Before You Co-Sign

With Parent PLUS capped at $20,000 a year, and $65,000 for the entire college stay, it's not surprising that some parents opt for private student loans.

But as a parent with kids who will likely go to college, I plan to be careful about co-signing private student loans for my child. Private loans don't come with the federal supports in place. When you co-sign a private loan for education, you risk having to pay it back if your child can't.

Choosing a college, and how to pay for it, is an extremely personal choice. Finding scholarships, looking at less expensive schools, and taking out federal loans only may be a better choice for a parent or guardian who doesn't want to potentially have to pay a hefty student loan into their retirement.

Direct Consolidation Loans

When you use a Direct Consolidation loan, you roll all your student loans together into one, providing you with a fixed interest monthly payment, which may help make repayments easier to manage. It won't lower your interest rate, but if you have multiple federal loans, it could be an option.

The difference comes down to who pays the interest while you're in school. With subsidized loans, the government does. With unsubsidized loans, you do. That single distinction can add up to real money over four years, which is why it pays to accept subsidized loans first.

For example: On a $10,000 unsubsidized loan at 6.52%, interest adds up to roughly $2,600 over four years of school, since unpaid interest gets added to your balance once repayment starts. The same $10,000 as a subsidized loan avoids that entirely, staying at $10,000 instead of growing to about $12,600. This example assumes the full amount is borrowed upfront and held for four years, your actual cost depends on how much you borrow each year.

Like any loan, interest is what it costs you to borrow. On federal loans, it's charged on the amount you borrowed, and it doesn't snowball the way credit card interest does.

Take that same $10,000 example, but this time factor in the full timeline: four years of school plus the standard six-month grace period.

• Interest rate: 6.52% for undergraduates

• Annual interest cost: About $652

• Total interest by the time repayment begins: Roughly $2,934

Before July 2023, accrued interest got folded into your loan balance when repayment began, meaning you'd then pay interest on the interest. That changed for all federal Direct Loans. The interest now sits alongside your loan instead of being absorbed into it, so it stops growing once you enter repayment. You still owe it, but it won't compound.

Federal Student Aid calls this "capitalization," and it can still happen in a few specific cases, like when a deferment ends on an unsubsidized loan. Ask your servicer if you're unsure whether it applies to you.

What About the Origination Fee?

There's one more cost to factor in: the origination fee. A 1.057% fee comes out upfront on Direct Subsidized and Unsubsidized loans.

• On a $10,000 loan: The fee is about $106.

• What you actually receive: About $9,894.

• What you still owe: The full $10,000.

On July 1, 2026, new federal rules changed how much students and parents can borrow and how they repay. The Department of Education published the final rule in May 2026, according to NASFAA.

Here's what's new:

• Graduate PLUS loans: Ended for new borrowers on July 1, 2026. Students already borrowing in the program may qualify for a limited extension.

• Federal borrowing cap: Set at $257,500, combining undergrad and grad debt. Parent PLUS is capped separately (see above).

• Repayment plans: Loans disbursed on or after July 1, 2026, use either the Repayment Assistance Plan (RAP) or a Tiered Standard Plan. SAVE, PAYE, and ICR are phasing out.

• Forbearance: For loans first disbursed on or after July 1, 2027, general forbearance is capped at nine months within any two years, down from 12 months at a time and three years total. These loans also lose access to economic hardship and unemployment deferments.

Many private lenders let you choose how to handle payments while you're enrolled, with options that typically include full payments, interest-only payments, a small fixed monthly payment, or deferring everything until after you leave school. Deferring costs the most over the life of the loan, since interest keeps accruing either way.

If you take out federal loans, you'll likely have a grace period after you graduate or leave. When it's time to repay, your options depend on when your loans were first disbursed:

• Loans from before July 1, 2026: Standard, graduated, extended, or income-driven repayment plans.

• Loans disbursed after July 1, 2026: RAP or the Tiered Standard Plan (see the 2026 changes above).

If you have trouble with repayment, deferment and forbearance let you pause payments temporarily, but interest usually keeps accruing, so your balance can grow. Forgiveness programs can erase remaining balances too, including Public Service Loan Forgiveness for eligible government and nonprofit workers, and Teacher Loan Forgiveness for qualifying teachers.

Yes. Like any time you borrow money, taking out student loans can be helpful or hurtful to your credit. Because they're such a common form of debt, they show up on your credit report and factor into your score. On the plus side, on-time payments build a strong payment history, the most important piece of your FICO score.

On the downside, missed payments do damage. Federal loans are typically reported to the credit bureaus around 90 days past due, and private loans can be reported as early as 30 days past due.

Worse, a default stays on your credit report for seven years from the date of the first missed payment, and it can follow you into decisions that have nothing to do with school, like buying a home or leasing a car.

Contact your loan servicer before you miss a payment. If you have federal loans, you usually have options to pause or lower your payment before things get serious.

Here's the timeline:

• Day 1 after a missed payment: Your loan becomes delinquent.

• 270 days past due: Your loan goes into default. At this point, you lose access to federal safety nets like deferment, forbearance, and repayment plan changes, on top of the credit damage covered above.

As of March 2026, about 9 million borrowers, holding $220 billion in outstanding federal loans, were in default, more than 13% of the federally managed loan portfolio. Default also carries consequences beyond your credit report, including wage garnishment and a withheld tax refund.

If you're at risk, ask your servicer about switching to a lower-cost repayment plan, or request deferment or forbearance. Some employers even offer loan assistance, so it's worth asking.

Borrowing caps make free money and early planning more valuable than ever.

Outside scholarships won at age 12 or 15 can reduce what a family owes at 18.

Earn College Credit Before You Enroll

"Advanced Placement and dual enrollment courses allow teens to amass as many as two years' worth of college credit before they even graduate high school," Padurano said. "A student who enters as a sophomore or junior may finish in two or three years instead of four."

Pick a College and Stay There

"Pick the right college and stay there," Padurano said. "Transfer students' credits often don't follow them to a new college." Lost credits can add a semester or a full year to a degree, and fifth- and sixth-year students pay for that time out of pocket or with additional loans.

Work While You Study

"Consider co-op, internship, or other professional opportunities that allow you to earn while you study," Padurano said. "Some employers may even pay for your education, so you're gaining valuable work experience while finishing your degree."

Grants and scholarships come first no matter where you are in your education, since that's money you don't repay. After that, your next step depends on your situation:

• Incoming undergraduate: After seeking out grants and scholarships, plus accepting any work-study offers from your college, consider subsidized loans, then unsubsidized. Private student loans take careful consideration as a way to bridge any gap.

• Parent borrower: Know the Parent PLUS ceiling before you file the FAFSA, and talk through the risks of cosigning private loans with your student first. Our guide to paying for your child's college can help.

• Existing borrower: With federal loans, always revisit your repayment plan. A different option may lower your monthly payment.

How much can I borrow with student loans?

Federal undergraduate limits run about $5,500 to $12,500 per year depending on your year in school and dependency status. Private limits depend on the lender and your credit.

When do I have to start repaying my student loans?

For most federal loans, repayment starts six months after you graduate, leave school or drop your enrollment to under half-time. This period of six months is known as your “grace period.” Private timelines vary by lender, so it is important to ask for a detailed repayment plan ahead of time so you can be prepared.

What's the difference between subsidized and unsubsidized loans?

The government pays the interest on subsidized loans, which are given as need-based aid, while you're in school. On unsubsidized loans, the interest is yours from day one.

Do I need a cosigner for a student loan?

Most federal loans don't require a cosigner or a credit check, but many private loans do, because students often lack a credit history needed to qualify for a loan.

What is forbearance?

When you put your loans into forbearance, you take a temporary pause or reduction in your loan payments. While you don’t pay for the period of forbearance, interest usually keeps accruing, so your balance can grow while payments are paused. You can obtain forbearance with federal loans, but private student loan forbearance varies by lender.

• Federal Student Aid: Loan types, interest rates, fees, portfolio data, and 2026 updates.

• NASFAA: OBBBA final rule reporting.

• Congressional Research Service: Repayment Assistance Plan (RAP) details.

• University of South Carolina Financial Aid Office: Parent PLUS borrowing cap changes.

• Student Loan Borrower Assistance: 2023 interest capitalization rule change.

• College Board: Trends in College Pricing and Student Aid 2025.

• Consumer Financial Protection Bureau: Borrowing guidance and private loan forbearance rules.

• myFICO: Credit score and payment history guidance.