Federal student loans are automatically deferred while you are in school, as long as you’re enrolled at least half-time and your school reports that enrollment to the Department of Education. You don’t normally need to file anything. Private student loans are a separate matter: whether payments pause depends entirely on the terms of your promissory note. And in both cases, interest can keep accruing in the background, which is the part that catches borrowers off guard years later.
How the Automatic Pause Works
The threshold is half-time enrollment. For undergraduate programs measured in credit hours, that’s at least six credits per term; full-time is 12 or more.1FSA Partner Connect. Federal Student Aid Handbook Chapter 4 – Enrollment Status Minimum Requirements Graduate and non-standard term programs can define half-time differently based on the school’s academic calendar, so check with your financial aid office if you’re close to the line.
Under 34 CFR 685.204, the Department of Education processes a deferment when it receives student status information from your school indicating at least half-time enrollment.2eCFR. 34 CFR 685.204 – Deferment Most schools send their enrollment data to the National Student Clearinghouse, which passes it to the National Student Loan Data System, the Department’s central database for federal aid records.3U.S. Department of Education FSA Knowledge Center. National Student Loan Data System (NSLDS) Your servicer reads the updated status and pauses billing.
Because the chain runs school to Clearinghouse to NSLDS to servicer, there can be a lag, especially early in a term or at schools that report infrequently. Log in to your servicer’s account a few weeks into each semester and confirm the status reads “In School Deferment” or similar. Catching a reporting gap early prevents a missed-payment notice from showing up when you thought everything was handled.
When You Do Have to Ask
A few situations fall outside the automatic process.
Parent PLUS loans are the biggest one. For loans first disbursed on or after July 1, 2008, a parent can request deferment while the student they borrowed for is enrolled at least half-time, plus six months after that student drops below half-time.4Federal Student Aid. Parent PLUS Borrower Deferment Request The key word is request. Without the paperwork, repayment begins 60 days after the loan is fully disbursed, and many parent borrowers end up making payments they could have postponed.
Graduate and professional students who take out Direct PLUS Loans get the deferment automatically while enrolled at least half-time, along with an additional six months after leaving school.5Federal Student Aid. Direct PLUS Loans for Graduate or Professional Students
For your own federal loans, you may need to file manually if you’re returning after a gap, starting at a new school, or if the reporting chain hasn’t caught up. The form is the In-School Deferment Request, submitted to your loan servicer. It asks for your Social Security number, expected graduation date, and your school’s eight-digit Office of Postsecondary Education Identification number, which the financial aid office can give you.6Federal Student Aid. In-School Deferment Request A school registrar or authorized official has to complete a section confirming your enrollment status and the dates of the current term. Electronic submission through your servicer’s portal is faster than mail. Processing takes a few weeks, and during that window you’re still on the hook for any scheduled payments, so keep paying until the account status actually changes.
What’s Still Growing While You Aren’t Paying
Automatic deferment means you aren’t billed. It doesn’t always mean the balance holds still.
Direct Subsidized Loans are the exception where it does. The federal government covers the interest that accrues while you’re enrolled at least half-time, so your balance stays flat.2eCFR. 34 CFR 685.204 – Deferment The 150% subsidized usage limit that used to cut off the interest benefit for borrowers who stayed in school too long has been repealed, so subsidized loans keep their subsidy for the full duration of your enrollment.7Federal Student Aid. 150 Percent Direct Subsidized Loan Limit Information
Direct Unsubsidized Loans and PLUS loans are different. Interest accrues every day you’re in school, and you’re responsible for all of it. For loans first disbursed between July 2025 and June 2026, undergraduate Direct loans carry a fixed rate of 6.39%, graduate unsubsidized loans sit at 7.94%, and Grad PLUS loans at 8.94%.8Federal Student Aid. Interest Rates for Direct Loans First Disbursed Between July 1, 2025 and June 30, 2026 On a $20,000 unsubsidized balance at 6.39%, roughly $1,278 in interest accumulates each year. Four years of undergrad adds more than $5,000 before you’ve made a single payment.
Then comes capitalization: the moment unpaid interest gets added to your principal, so you start paying interest on the larger amount. For federal loans, interest on unsubsidized balances capitalizes when you enter repayment for the first time after leaving school and when a deferment period ends. It also capitalizes on both subsidized and unsubsidized loans after forbearance, and a missed payment can trigger capitalization on accrued interest. The practical effect: if you have unsubsidized loans and do nothing for four years, all that accrued interest folds into your principal the day repayment starts, and every dollar of it generates its own interest for the remaining life of the loan.
Making small, interest-only payments during school prevents the compounding entirely. You don’t have to pay the whole bill. Covering just the interest each month keeps the principal from growing.
Private Student Loans Follow Their Own Rules
No federal law requires private lenders to pause payments while you’re in school. Whether your private loan defers depends on the terms of your promissory note. Many lenders offer an in-school option to stay competitive, but the specifics vary. Federal regulations under the Truth in Lending Act do require private lenders to disclose whether a payment deferral option exists, whether interest accrues during that deferral, and whether unpaid interest will be added to principal.9eCFR. 12 CFR Part 226 Subpart F – Special Rules for Private Education Loans Those disclosures are the place to look.
Common structures lenders offer during school include:
- Full deferral, with no payments due while enrolled, typically capped at four consecutive years. Interest accrues and usually capitalizes when repayment begins.
- Interest-only payments each month, which keeps the principal from growing.
- A small fixed monthly payment, often $25 to $50, that covers part of the accruing interest.
- Immediate full repayment, with principal and interest starting right away.
Interest almost always keeps accumulating on a private loan regardless of which structure you choose. If the rate is higher than your federal loans and you pick full deferral, the capitalized interest at graduation can add a substantial amount to the total.
Paying Interest While Deferred Has a Tax Benefit
Voluntary interest payments made while you’re in school count toward the student loan interest deduction on your federal tax return. The IRS allows up to $2,500 per year in deductible student loan interest and explicitly includes voluntary payments, not just required ones.10Internal Revenue Service. Publication 970 – Tax Benefits for Education The loan has to be a qualified student loan taken out to pay education expenses for a student enrolled at least half-time.11Internal Revenue Service. Topic No. 456 – Student Loan Interest Deduction The deduction phases out at higher incomes based on modified adjusted gross income, and because it’s above-the-line, you benefit even without itemizing. For a borrower in a lower bracket, the tax savings won’t fully offset the interest, but combined with avoiding capitalization, voluntary payments during school are often the cheapest money you’ll ever spend on your loans.