Federal Direct Student Loans: Types, Limits, and Interest Rates

The federal Direct Loan program offers four loan types, and each one has its own eligibility rules and borrowing caps. Direct Subsidized Loans go to undergraduates with financial need, Direct Unsubsidized Loans are open to undergraduates and graduate students regardless of need, Grad PLUS Loans cover graduate and professional students, and Parent PLUS Loans let parents borrow for a dependent undergraduate. Annual caps run from $5,500 for a first-year dependent undergraduate up to the school’s full cost of attendance for PLUS borrowers, with lifetime ceilings of $31,000, $57,500, and $138,500 depending on your category.¹

The William D. Ford Federal Direct Loan Program is run by the U.S. Department of Education, which lends the money itself rather than through a bank.² The four loan types sit on a cost ladder, and the differences between them can mean thousands of dollars over the life of a loan.

Direct Subsidized Loans

Direct Subsidized Loans are reserved for undergraduate students who demonstrate financial need. Your school calculates need by subtracting your expected financial contribution from the cost of attendance, and the resulting gap sets how much you can borrow in subsidized funds.

The defining advantage is in the name. The federal government covers the interest while you’re enrolled at least half-time, during your six-month grace period after leaving school, and during any approved deferment.³ On a $5,500 loan at current rates, that subsidy saves roughly $1,400 in interest over four years of school alone. Because the government is absorbing interest, subsidized loans are the cheapest federal borrowing available.

Graduate and professional students lost eligibility for subsidized loans starting in 2012, so this is an undergraduate-only benefit now. If you drop below half-time enrollment, the subsidy ends and interest starts running on you.

The Deferment Subsidy

Because interest doesn’t accrue on subsidized loans during deferment, the subsidy keeps paying off long after you leave school. Several deferment categories exist, and the most common include:

Unemployment deferment, available if you’re actively seeking but unable to find full-time work, for up to 36 months.
Economic hardship deferment, available if you receive public assistance, serve in the Peace Corps or AmeriCorps, or earn below 150% of the federal poverty guideline, for up to 36 months.
In-school deferment, automatically applied while you’re enrolled at least half-time, with no time limit.
Military deferment, available during active-duty service in a war or national emergency, with no time limit.⁴

On unsubsidized loans, interest keeps running during all of these deferments. That gap is why it pays to exhaust subsidized borrowing before turning to unsubsidized loans whenever you can.

Direct Unsubsidized Loans

Direct Unsubsidized Loans are available to undergraduates, graduate students, and professional students regardless of financial need. The trade-off for the broader eligibility: you’re responsible for all interest from the moment the loan is disbursed. Interest accrues while you’re in school, during the grace period, and during deferment or forbearance.

You can pay the interest as it accrues, and the math argues for doing so. Any interest you don’t pay eventually gets added to your principal through capitalization, and the new, larger principal then generates its own interest. On a $20,500 graduate loan at 7.94%, skipping interest during a two-year master’s program adds roughly $3,250 to your balance before you’ve made a single loan payment.

For Direct Loans held by the Department of Education, capitalization triggers when a deferment ends on an unsubsidized loan, and under certain circumstances on income-driven repayment, such as when you fail to recertify your income by the annual deadline or voluntarily switch plans.⁵ Knowing when those triggers hit lets you time interest payments to blunt the damage.

Grad PLUS Loans

Direct PLUS Loans for graduate and professional students fill the gap between the $20,500 annual unsubsidized cap and the school’s full cost of attendance. Unlike subsidized and unsubsidized loans, PLUS Loans require a credit check. Your credit history counts as “adverse” if you have accounts totaling $2,085 or more that are 90 or more days delinquent, charged off, or in collections, or if you have a recent bankruptcy discharge, foreclosure, tax lien, or wage garnishment on your record.⁶

The borrowing ceiling is the school’s cost of attendance minus any other financial aid, which makes PLUS the only federal loan type with no fixed dollar cap. That open ceiling is both the appeal and the risk, because PLUS also carries the program’s highest interest rate.

If Your Credit Is Denied

A denial doesn’t end the process. You have two options: find an endorser who agrees to repay the loan if you don’t, or submit documentation of extenuating circumstances for the Department of Education to review. An endorser cannot have an adverse credit history themselves, and borrowers who qualify through an endorser must also complete PLUS Loan credit counseling on StudentAid.gov.⁷

One important catch: if you’re currently in default on any federal student loan, neither an endorser nor extenuating circumstances will get a PLUS Loan approved. You have to resolve the default first.⁷

Parent PLUS Loans

Parent PLUS Loans let parents of dependent undergraduates borrow up to the school’s full cost of attendance minus other aid. The same credit check and the same adverse-credit standard apply, and the same endorser or extenuating-circumstances path exists if a parent is denied. For a Parent PLUS Loan, the dependent student cannot serve as the endorser.⁷

A parent borrowing $40,000 per year across four years of a child’s education can easily accumulate $160,000 in Parent PLUS debt at the program’s higher rate. Two features deserve serious thought before signing. First, parents remain legally responsible for Parent PLUS debt for the life of the loan; the obligation cannot be transferred to the student. Second, Parent PLUS Loans are not eligible for most income-driven repayment plans, so the repayment safety nets available on other federal loans largely don’t apply.

Annual and Aggregate Borrowing Limits

Federal law caps how much you can borrow each year and over your entire academic career. The limits vary with your year in school, your dependency status, and whether you’re an undergraduate or graduate student.

Annual Limits for Dependent Undergraduates

First year: $5,500 total, with a $3,500 maximum in subsidized loans.
Second year: $6,500 total, with a $4,500 maximum in subsidized loans.
Third year and beyond: $7,500 total, with a $5,500 maximum in subsidized loans.¹

Annual Limits for Independent Undergraduates

Independent students, and dependent students whose parents are denied a PLUS Loan, get higher caps:

First year: $9,500 total, with a $3,500 maximum in subsidized loans.
Second year: $10,500 total, with a $4,500 maximum in subsidized loans.
Third year and beyond: $12,500 total, with a $5,500 maximum in subsidized loans.¹

The subsidized portions are the same across dependent and independent status. The entire difference sits in how much additional unsubsidized borrowing is allowed.

Annual Limits for Graduate and Professional Students

Graduate and professional students can borrow up to $20,500 per year in unsubsidized loans. They are not eligible for subsidized loans at all.¹ Beyond that, graduate students turn to Grad PLUS Loans up to the cost of attendance.

Lifetime (Aggregate) Limits

Aggregate limits cap total federal student loan borrowing across all years of school:

Dependent undergraduates: $31,000 total, with a $23,000 maximum in subsidized loans.
Independent undergraduates: $57,500 total, with a $23,000 maximum in subsidized loans.
Graduate and professional students: $138,500 total, with a $65,500 maximum in subsidized loans, including any loans carried over from undergraduate study.¹

The subsidized portion of the graduate aggregate limit typically reflects subsidized debt carried over from undergraduate years, since graduate students can’t take out new subsidized loans. These caps are strictly enforced; your school’s financial aid office will not certify a loan that would push you past the limit. PLUS Loans sit outside these aggregate caps, because they’re bounded instead by the cost of attendance each year.

Current Interest Rates and Fees

Federal student loan interest rates are fixed for the life of each loan but reset annually for newly disbursed loans. The rate is tied to the 10-year Treasury note yield from the final auction before June 1, plus a statutory add-on that varies by loan type.⁸ Congress also set hard caps so the rate can never exceed a ceiling no matter how high Treasury yields climb.

For loans first disbursed between July 1, 2025, and June 30, 2026:

Undergraduate subsidized and unsubsidized: 6.39%, with a cap of 8.25%.
Graduate and professional unsubsidized: 7.94%, with a cap of 9.50%.
PLUS Loans (parent and graduate): 8.94%, with a cap of 10.50%.⁹

Rates for loans disbursed on or after July 1, 2026, will be announced after the spring 2026 Treasury auction. Once a loan is disbursed its rate never changes, so loans taken out in different years may carry different rates even if they’re the same type.

Origination Fees

Every Direct Loan disbursement has a small origination fee deducted before the money reaches you. For loans first disbursed between October 1, 2020, and October 1, 2026, the fees are 1.057% for subsidized and unsubsidized loans and 4.228% for PLUS Loans.¹⁰ On a $5,500 subsidized loan, you’ll receive about $5,442. On a $25,000 Parent PLUS Loan, roughly $23,943 actually reaches the school. You still owe interest on the full loan amount, so budget accordingly.

Choosing Between the Types

The order for most undergraduate borrowers is straightforward. Take the full subsidized amount you’re offered first, because the government is paying interest for you. Add unsubsidized borrowing next, up to your annual cap, and pay the interest as it accrues if you can afford to. Only after those two are maxed out does PLUS make sense, because its rate is higher and, for Parent PLUS, its repayment options are narrower.

For graduate students, the first $20,500 each year is unsubsidized at 7.94%. Anything above that comes from Grad PLUS at 8.94% with a 4.228% origination fee, so there’s a real cost difference between the two tiers worth factoring into how much graduate school you can afford at a given program.

1
Federal Student Aid. 2024-2025 Federal Student Aid Handbook – Volume 8, Chapter 4: Annual and Aggregate Loan Limits
2
eCFR. 34 CFR Part 685 – William D. Ford Federal Direct Loan Program
3
FSA Partner Connect. 2019-2020 Chapter 5 – Direct Loan Periods and Amounts
4
Nelnet. Postpone Your Payments with Deferment or Forbearance
5
Nelnet. Interest Capitalization
6
Federal Student Aid. PLUS Loans: What to Do if You’re Denied Based on Adverse Credit History
7
FSA Partner Connect. Federal Student Aid Handbook: Student and Parent Eligibility for Direct Loans
8
Office of the Law Revision Counsel. 20 USC 1087e – Terms and Conditions of Loans
9
FSA Partner Connect. Interest Rates for Direct Loans First Disbursed Between July 1, 2025 and June 30, 2026
10
FSA Partner Connect. FY 26 Sequester-Required Changes to the Title IV Student Aid Programs