Should you pay your student loans while you’re still in college? If you have unsubsidized or private loans and can spare even $10 or $20 a month, yes. Interest on those loans starts the day the money goes out, and whatever you don’t pay gets added to your balance when your grace period ends.
Paying just that interest as it builds means you graduate owing exactly what you borrowed. On subsidized loans there’s no rush at all, because the government covers the interest while you’re in school.
Here’s the math on a typical set of undergrad loans, and the easy way to set it up.
The short answer
- Direct Unsubsidized Loans charge interest from the day they’re disbursed, including while you’re in school and during the 6-month grace period.
- Unpaid interest is capitalized (added to your principal) when the grace period ends, so you pay interest on interest after that.
- On $8,000 of unsubsidized loans at 6.52%, paying the interest in school saves about $569 and lowers your payment by about $17.78 a month for 10 years.
- Subsidized loans don’t charge you interest while you’re enrolled at least half time, so saving the money instead is fine.
- Borrowed too much? Return it within 120 days of disbursement and you owe no interest or loan fee on that part.
Why your balance grows while you’re in school
A Direct Unsubsidized Loan charges interest during all periods, starting when it’s first disbursed. That includes every semester you’re in class and the six months of grace after you leave. You don’t have to pay it then. But if you don’t, it’s capitalized at the end of the grace period, which means it’s added to your principal and starts charging interest of its own.
- Direct Unsubsidized Loan
- Interest is charged from the first disbursement, in school and during grace. You owe all of it.
- Direct Subsidized Loan
- Only for undergrads with financial need. The Education Department pays the interest while you’re enrolled at least half time, during your grace period and during deferment.
- Capitalization
- Unpaid interest added to your principal, so you’re charged interest on it from then on.
Private student loans follow the lender’s terms, so check your loan agreement or ask the lender what in-school payment options it has.
The math: paying the interest vs letting it build
Say you’re a dependent undergrad who borrows the full federal limit each year and gets the most subsidized money allowed. The unsubsidized part of your federal loans is $2,000 a year, all four years. Here’s what that costs, both ways.
Example: $2,000 unsubsidized each year, 4 years, 6.52%
- Interest on each $2,000 loan
- $10.87 a month
- Paying it as it builds
- $10.87/mo freshman year, rising to $43.47/mo senior year and grace
- Interest that builds if you pay nothing
- $1,564.80 by the end of grace
- Balance when repayment starts
- $8,000 if you paid, $9,564.80 if you didn’t
- 10-year payment
- $90.92/mo if you paid, $108.70/mo if you didn’t
- Total cost of the loans
- $12,475.18 if you paid, $13,044.45 if you didn’t
How we got it: each $2,000 loan disbursed at the start of its school year at a fixed 6.52% (the undergraduate rate for loans first disbursed July 1, 2026 to June 30, 2027; each year’s loans get that year’s rate), simple interest until it’s capitalized once at the end of a 6-month grace period, then a 10-year level payment with interest figured monthly. A balance under $25,000 also gets a 10-year term on the Tiered Standard plan. The 1.057% loan fee is ignored here.
So paying about $1,565 over four and a half years saves you about $569 overall and knocks $17.78 off every payment for a decade. Not life-changing, but it’s real money for something that costs the price of a pizza a month, and it adds up fast with bigger loans or graduate rates.
Can you pay more than the interest? Sure, and every extra dollar comes straight off principal before interest has a chance to grow on it. Just pay the interest first.
Subsidized loans: no rush, but a smart option
Because the government covers the interest on a subsidized loan while you’re enrolled at least half time and during grace, paying early saves you nothing during those months. Want to get ahead anyway? Put the money in a savings account while you’re in school and send it as one lump payment before your grace period ends. You’ll start repayment with a smaller balance and a lower bill, and you keep the cash handy in case something comes up.
One catch: the grace period starts when you graduate, leave school or drop below half time. Drop a few classes and the clock starts sooner than you planned.
Borrowed more than you need? Send it back
This is the best deal on the page. You can return all or part of a Direct Loan within 120 days of the date your school disbursed it, and you won’t pay interest or the loan fee on the part you return. Your servicer will tell you how.
Good to know
Before the money is even disbursed, you can cancel all or part of a loan by telling your school. After that, your school has its own short window for cancellations, and the 120-day return through your servicer is the backstop.
How to make payments while you’re in school
- Log in to studentaid.gov and find your loan servicer under My Aid.
- Create an account on the servicer’s site and look up the interest on each unsubsidized loan.
- Make a payment for at least that amount each month. A small autopay is the easiest way to keep it going.
- Tell the servicer to apply the payment to your unsubsidized loans first, highest rate first.
- Check your next statement to make sure the unpaid interest went down.
Not sure what you owe or to whom? Our guide to organizing your student loans shows you how to pull it all into one list.
Where the money can come from
You don’t need much. $10.87 a month covers the interest on a $2,000 unsubsidized loan at 6.52%, and a few hours of work a month will cover it.
- A campus job or tutoring. Our guide to making money as a broke college student has more ideas that fit around classes
- A delivery shift or two. Our DoorDash review covers how that works
- Small apps that pay for spare time, which beermoney.co rounds up
- Part of a tax refund, a birthday check or leftover summer job money
Bottom line: if you can cover the interest on your unsubsidized loans, do it. It’s the cheapest head start you’ll ever get on paying off your student loans.
Common questions about paying student loans in college
Yes. You can make payments on federal and most private student loans while you are in school, and federal loans have no prepayment penalty. Your loan servicer takes the payment even though none is due yet.
On unsubsidized and private loans, usually yes. Unpaid interest on a Direct Unsubsidized Loan is capitalized at the end of the grace period, so you would pay interest on it for years. On $8,000 at 6.52% borrowed over four years, paying the interest in school saves about $569 overall.
No. The Education Department pays the interest on Direct Subsidized Loans while you are enrolled at least half time, during your 6-month grace period and during deferment.
It keeps building through your 6-month grace period. If you do not pay it, it is capitalized at the end of grace, which means it is added to your principal and you are charged interest on it from then on.
Yes. You can return all or part of a Direct Loan within 120 days of the date your school disbursed it, and you do not owe interest or the loan fee on the returned amount. Contact your loan servicer for instructions.
Sources (6)
We use primary sources wherever we can: Federal Student Aid, the U.S. Department of Education, the IRS, federal regulations and each company’s own site.
- Federal Student Aid. Subsidized and Unsubsidized Loans. studentaid.gov. Accessed October 22, 2026.
- Federal Student Aid. Master Promissory Note: Direct Subsidized Loans and Direct Unsubsidized Loans. studentaid.gov. Accessed October 22, 2026.
- Federal Student Aid. Big Updates: Definitions (annual loan limits). studentaid.gov. Accessed October 22, 2026.
- Federal Student Aid. Interest Rates and Fees for Federal Student Loans. studentaid.gov. Accessed October 22, 2026.
- U.S. Department of Education. Reimagining and Improving Student Education: Federal Student Loan Program Final Regulations (Tiered Standard terms). Federal Register. Accessed October 22, 2026.
- Federal Student Aid. Loan Servicers. studentaid.gov. Accessed October 22, 2026.
