Medical school loans work much like other federal student loans, but with higher borrowing caps, built-in accommodations for the low-paid residency years, and specific forgiveness routes tied to public and clinical service. Most students fund their degree through a mix of federal Direct Unsubsidized Loans and Direct PLUS Loans, add private loans only if a gap remains, and then choose a repayment approach after graduation that fits a resident’s salary. The average medical school graduate carries roughly $223,000 in educational debt, so the mechanics of how these loans accrue interest, when payments start, and which programs can reduce the balance matter a great deal.
Where the Money Comes From
Two federal loans do most of the work. Direct Unsubsidized Loans are available to essentially every enrolled medical student without any demonstration of financial need.1Federal Student Aid. Unsubsidized Loan They carry a fixed interest rate and form the first layer of borrowing.
When unsubsidized borrowing does not cover the full cost of attendance, Direct PLUS Loans (often called Grad PLUS Loans) fill the rest. You can borrow up to the total cost of attendance minus any other aid, so there is no fixed dollar ceiling.2Federal Student Aid. How Much Money Can I Borrow in Federal Student Loans? PLUS Loans do require a credit check, and a borrower with an adverse credit history may need an endorser or documentation of extenuating circumstances to qualify.3Student Financial Services. Direct PLUS Loans
Private medical school loans come from banks, credit unions, and online lenders. Rates and terms depend on your credit and income (or a co-signer’s), and some products use variable rates that move with the market. The important limit is what private loans do not carry: no income-driven repayment, no mandatory forbearance during residency, and no path to Public Service Loan Forgiveness. Financial aid offices generally recommend exhausting federal options before considering private borrowing.
Borrowing Limits, Rates, and Fees
Regular graduate students can borrow up to $20,500 per year in Direct Unsubsidized Loans. Medical students in eligible health professions programs qualify for higher limits: $40,500 for a typical nine-month academic year and up to $47,167 for a twelve-month year. The lifetime aggregate cap for health professions students is $224,000 in combined subsidized and unsubsidized loans, versus $138,500 for other graduate students.4Federal Student Aid Knowledge Center. Annual and Aggregate Loan Limits Grad PLUS Loans have no separate cap beyond cost of attendance.
Federal rates are fixed for the life of each loan but reset annually for new loans, based on the 10-year Treasury note auction each May. For loans first disbursed between July 1, 2025 and June 30, 2026, the rate is 7.94% on Direct Unsubsidized Loans for graduate and professional students and 8.94% on Direct PLUS Loans.5Federal Student Aid. Interest Rates for Direct Loans First Disbursed Between July 1, 2025 and June 30, 2026 Once disbursed, that rate does not change.
Each disbursement is also reduced by a one-time origination fee. For loans first disbursed between October 1, 2025 and September 30, 2026, the fee is 1.057% on Direct Unsubsidized Loans and 4.228% on Direct PLUS Loans.6Federal Student Aid. FY 26 Sequester-Required Changes to the Title IV Student Aid Programs On a $40,500 unsubsidized loan you would receive about $40,072 in disbursed funds but owe the full $40,500. The PLUS fee is meaningfully larger, so plan for it.
What Happens Between Disbursement and Graduation
Federal loan funds go to your medical school, not to you. The financial aid office applies the money first to tuition, fees, and required charges, then releases any remaining balance to you for living expenses. Schools cannot disburse funds more than ten days before the first day of classes for a given term.7eCFR. 34 CFR 668.164 – Disbursing Funds Disbursements typically arrive at the start of each semester or payment period.
Interest on both Direct Unsubsidized and Grad PLUS Loans starts accruing the day funds are disbursed, even while you are enrolled and not making payments.1Federal Student Aid. Unsubsidized Loan On a $40,500 loan at 7.94%, roughly $3,200 in interest accumulates in a single year with no payments. Across four years of school, unpaid interest adds up.
That unpaid interest capitalizes (gets added to your principal) at specific trigger points: when a deferment ends, when you leave an income-driven plan, or when your grace period concludes. From then on, you pay interest on the larger principal. Making even small interest-only payments during school prevents some of that capitalization and can save thousands over the life of the loan.
Repayment After Graduation
The Six-Month Grace Period
After graduation or dropping below half-time enrollment, Direct Unsubsidized Loans give you a six-month grace period before payments are due.8AAMC. Postponing Loan Repayment: Grace, Deferment, and Forbearance Interest keeps accruing, but no monthly payment is required. For most graduates this window overlaps with the start of residency and gives you time to pick a plan.
Standard Repayment
The default is the Standard Repayment Plan: a fixed monthly payment calculated to pay off the loan in ten years.9Aidvantage. Federal Student Loan Repayment Options Total interest paid is minimized, but the monthly payment is high. Resident salaries typically run $60,000 to $75,000 while balances often exceed $200,000, so the Standard payment is usually impractical during training.
Income-Driven Repayment
Income-driven repayment (IDR) ties your monthly payment to a percentage of your discretionary income (the difference between your adjusted gross income and a multiple of the federal poverty guideline). Under Income-Based Repayment (IBR), payments are capped at 10% of discretionary income for newer borrowers or 15% for those who borrowed before July 1, 2014. If the calculated payment comes out to less than $5 per month, your required payment is zero, and that zero-dollar payment still counts toward forgiveness.10Federal Student Aid. Questions and Answers About IDR Plans
The SAVE Plan was struck down by the Eighth Circuit in early 2025 and remains blocked by a federal court injunction. The Department of Education has instructed the roughly 7.7 million borrowers enrolled in SAVE to switch to a different IDR plan (most commonly IBR) to resume making qualifying payments toward forgiveness.11U.S. Department of Education. U.S. Department of Education Continues to Improve Federal Student Loan Repayment Options If you are picking a plan now, IBR and Pay As You Earn (PAYE) are the active IDR options.
After 20 or 25 years of qualifying payments (depending on the plan and whether you borrowed for graduate school), any remaining IDR balance is forgiven. Starting in 2026, that forgiven amount may be treated as taxable income on your federal return. A temporary provision under the American Rescue Plan Act had excluded student loan forgiveness from federal taxes through January 1, 2026, but that protection has expired for IDR forgiveness. This potential tax bill is worth weighing against Public Service Loan Forgiveness, which remains tax-free.
Handling Payments During Residency
If IDR payments still feel out of reach during training, you can request mandatory forbearance designed specifically for medical and dental residents. Your loan servicer is required to grant it as long as you document participation in an accredited internship or residency program.12Federal Student Aid. Service-Based Mandatory Forbearance Request – Medical or Dental Internship/Residency It is granted in increments of up to 12 months and can be renewed.
Interest continues to accrue during forbearance and eventually capitalizes. And for anyone pursuing Public Service Loan Forgiveness, IDR payments during residency count toward the 120-payment requirement (even zero-dollar ones), while forbearance months do not. IDR is usually the stronger choice if PSLF is part of your long-term plan.
Forgiveness and Repayment Assistance
Public Service Loan Forgiveness
PSLF cancels your remaining federal loan balance after 120 qualifying monthly payments made while working full-time for a qualifying employer, typically a government agency, nonprofit hospital, or academic medical center.13Federal Student Aid. Employer Eligibility for Public Service Loan Forgiveness (PSLF) Full-time means averaging at least 30 hours per week. The 120 payments need not be consecutive, and only payments made after October 1, 2007 count.
Amounts forgiven under PSLF are not treated as taxable income. That exclusion is set by federal tax law and was not affected by the expiration of the American Rescue Plan Act provision.14Office of the Law Revision Counsel. 26 U.S. Code 108 – Income From Discharge of Indebtedness For a physician spending three to seven years in residency and fellowship at a nonprofit hospital, PSLF can wipe out hundreds of thousands of dollars in remaining debt tax-free.
Submit the PSLF Certification and Application (via the PSLF Help Tool on studentaid.gov) annually or whenever you change employers. Your employer’s authorized official signs the form to confirm qualifying employment, which prevents surprises when you reach payment 120.15Federal Student Aid. Tackling the Public Service Loan Forgiveness Form: Employer Tips
Service-Based Repayment Programs
Beyond PSLF, a few federal programs pay down debt in exchange for a service commitment:
- National Health Service Corps (NHSC): physicians practicing primary care, psychiatry, or obstetrics/gynecology at an approved site in a Health Professional Shortage Area can receive up to $75,000 for a two-year full-time commitment, or $37,500 for half-time. Awards are based on your outstanding qualifying loan balance and can be renewed.16NHSC. NHSC Loan Repayment Program
- NIH Loan Repayment Programs: physicians engaged in biomedical or biobehavioral research can receive up to $50,000 per year toward qualifying educational debt. Both extramural researchers and intramural NIH employees are eligible.17National Institutes of Health. Loan Repayment Programs
Amounts received under the NHSC program and similar state loan repayment programs are also excluded from taxable income under federal law.14Office of the Law Revision Counsel. 26 U.S. Code 108 – Income From Discharge of Indebtedness Many states run their own repayment programs for physicians in underserved areas; your state health department is the place to check.
Consolidation and Refinancing
A federal Direct Consolidation Loan combines multiple federal loans into one loan with a single payment. The new rate is the weighted average of your existing rates, rounded up to the nearest one-eighth of a percent. Consolidation can simplify billing and make some loans eligible for IDR or PSLF that were not before.
The trade-offs are meaningful. Consolidation can lengthen your repayment period and add total interest, unpaid interest capitalizes when the new loan is created, and, most importantly, it resets your qualifying payment count for PSLF and IDR forgiveness to zero.18Federal Student Aid. 5 Things to Know Before Consolidating Federal Student Loans Consolidation cannot be undone once processed.
Private refinancing is different: a private lender pays off your existing loans and issues a new one at its own rate. Strong credit and an attending salary can produce a lower rate than your federal loans carry. Refinancing federal loans into a private loan, though, permanently ends access to IDR, PSLF, and mandatory residency forbearance. If PSLF or IDR flexibility might matter to you, avoid private refinancing until those benefits are no longer relevant.
The Student Loan Interest Deduction
You can deduct up to $2,500 per year in student loan interest paid on qualified education loans, reducing your taxable income by that amount.19Internal Revenue Service. Publication 970, Tax Benefits for Education You do not need to itemize; it is taken as an adjustment to income. The deduction phases out and eventually disappears at higher incomes based on your modified adjusted gross income and filing status, with thresholds adjusted annually by the IRS.
During residency, when the salary is modest and interest charges are heavy, you are likely to qualify for the full deduction. At attending-physician income, you may be phased out entirely. Claiming this deduction every eligible year is worth the modest paperwork during the period when the debt-to-income ratio is at its worst.20Internal Revenue Service. Topic No. 456, Student Loan Interest Deduction