Medical School Cost of Attendance vs Actual Debt: Why the Gap Exists

The average published cost of attendance at a private U.S. medical school runs about $67,000 per year. Multiply that by four, and you get roughly $268,000 — a number that sounds alarming on its own. Yet the AAMC's 2023 Medical Student Education: Debt, Costs, and Loan Repayment Fact Card reports that the median debt for indebted medical school graduates sits at $200,000, while a meaningful slice of graduates — particularly those at private schools in high cost-of-living cities — exit with $300,000, $350,000, or more in federal loans.

So which number is real? And why does a student who attends a school with a published four-year cost of $268,000 sometimes end up owing $320,000? The answer isn't tuition fraud or accounting errors. It's a set of structural gaps — between what schools report, what students actually spend, and how interest compounds through seven-plus years of training before repayment even starts.

Understanding the gap is not an academic exercise. It determines whether your IBR payment in residency makes a dent in your balance, whether you're a realistic PSLF candidate, and how much net worth you forfeit if you refinance too early.

Why Medical School Cost of Attendance Figures Understate Actual Debt

Every medical school publishes a Cost of Attendance (COA) figure — it's a federal requirement under Title IV. COA includes tuition, fees, required books and equipment, room and board, transportation, and a personal expense allowance. That figure sets the ceiling on how much federal aid (loans) you can borrow.

The problem is that COA is a regulatory floor estimate, not a lived budget:

Room and board is systematically underestimated. Schools often calculate housing costs using local average rent, but medical students in cities like New York, San Francisco, Boston, or Los Angeles routinely pay 30–50% more than the school's estimate. A school might budget $16,000/year for housing; a student renting a studio near NYU Langone is paying $24,000 or more.

The personal expense allowance is fictional for many students. Schools budget $2,000–$4,000 annually for personal expenses. This has to cover clothing, toiletries, gym memberships, car insurance if you own a vehicle, and every irregular cost that doesn't fit neatly into another category. For most students, this line item is consistently blown.

Board exam and Step costs aren't fully accounted for. USMLE Step 1 costs $645. Step 2 CK costs $645. Step 3 costs $895. Add dedicated prep courses — most students spend $2,000–$4,000 on Amboss, UWorld subscriptions, First Aid supplements, and dedicated review. Many schools don't build these costs fully into COA, or they're buried under a "books and supplies" line that was calibrated for a normal semester, not a high-stakes licensing exam cycle.

Residency application costs are excluded entirely. The COA you borrow against covers your time in medical school — not the $10,000–$16,000 fourth-year students routinely spend on ERAS application fees, USMLE Step 3 registration, interview travel, and away rotations. Most students cover these costs by borrowing a final tranche of loans in their MS4 year, sometimes beyond their COA allocation through GradPLUS, or by depleting savings. Either way, it adds to the total.

The Interest Capitalization Problem: Where the Real Gap Lives

The single biggest driver of the gap between COA and actual debt load at repayment is interest capitalization during medical school itself.

Federal student loans begin accruing interest the moment they're disbursed. Graduate Unsubsidized loans — which make up the bulk of medical school borrowing — carry interest rates set annually by Congress. For the 2024–2025 academic year, the Graduate Unsubsidized rate is 8.08%. GradPLUS loans are 9.08%.

During medical school, most students make zero payments. The interest that accumulates during those four years gets capitalized — added to your principal — either at graduation, at the end of your grace period, or when you enter repayment.

Here's what that looks like concretely. A student who borrows $200,000 over four years (front-loaded, because tuition typically rises annually) accrues roughly $36,000–$42,000 in unpaid interest by the time they graduate, depending on disbursement timing and rate. Before they make a single payment, their balance is already $236,000–$242,000.

Then comes residency. The average residency lasts 3–7 years depending on specialty. Neurosurgery residents train for seven years; orthopedic surgery residents for five; family medicine residents for three. During that time, most residents enroll in an income-driven repayment plan. Under IBR — now the standard IDR plan after SAVE was vacated by the 8th Circuit in March 2026 — a first-year resident earning $61,000 pays roughly $300–$400/month.

That payment doesn't cover all the interest accruing on a $240,000 balance at 7–8%. The shortfall accumulates. A resident in a five-year surgical program making IBR payments might add another $40,000–$60,000 in negative amortization before ever reaching attending salary.

The student who borrowed $200,000 — right in line with the AAMC median — can easily owe $280,000–$300,000 the day they finish residency. This is not irresponsibility. It's math.

How School Type and State Residency Widen the Medical School Cost of Attendance vs Actual Debt Gap

Not all COA gaps are equal. The disparity is predictably larger at certain school types:

Private medical schools charge significantly more than public schools, and their COA figures — while higher in absolute terms — can still understate actual costs if they're located in expensive metros. NYU Grossman is now tuition-free, a notable exception, but Columbia, Georgetown, Tufts, and similar institutions run tuition alone at $65,000–$70,000 annually.

Out-of-state public medical school students often face a COA that accurately reflects tuition (because out-of-state tuition is explicit), but still underestimate living costs. The gap here tends to be more about personal spending than housing.

In-state public school students tend to have the smallest gap — lower tuition means lower absolute borrowing, and interest accrual is proportionally smaller.

For specialty-specific context on how these numbers land at graduation and play out through residency, the MedDebt guide to medical school debt by specialty breaks down expected debt loads by field — including how a family medicine graduate with $180,000 faces a completely different calculus than a neurosurgeon with $350,000.

The Lifestyle Creep Borrowing That Never Gets Talked About

There's a culturally uncomfortable piece of the gap worth naming directly: some borrowing above COA reflects lifestyle choices, not system failures.

Medical school is socially intense. Students attend conferences, travel for interviews in MS3, take trips during dedicated study breaks, and maintain social lives that cost money. When your only income source is loan disbursements — and federal loans are already disbursed in lump sums that feel abstract — it's behaviorally easy to spend $3,000 on a spring break trip that you rationalize as "necessary mental health recovery" and technically charge to your credit card while your loan disbursement sits in checking.

These aren't failures of character — they're predictable responses to a system that hands 22-year-olds $50,000 twice a year with minimal financial literacy support. But acknowledging this matters for planning. If a student borrows $5,000–$10,000 above true academic costs each year, that's $20,000–$40,000 in additional principal accumulating interest for 10+ years.

The cumulative effect can rival a full semester of tuition.

What This Means for Your Repayment Strategy

The gap between published COA and actual debt at repayment is not just a curiosity — it has concrete repayment implications.

For PSLF candidates: Your PSLF timeline is calculated from your first qualifying payment, not from when you started school. But your balance at forgiveness is heavily influenced by how much you borrowed above COA. A resident with $320,000 in debt pursuing PSLF at a nonprofit hospital will have more forgiven — tax-free — than a resident with $200,000. The PSLF vs. aggressive payoff calculator comparison makes this concrete.

For refinancing candidates: Refinancing makes sense when your debt-to-income ratio is favorable and you're in private practice. But if your balance is higher than expected because of capitalized interest rather than purely because of borrowing, understanding why the balance is where it is matters before you lock in a fixed rate. See PSLF vs. refinancing for attending physicians for the full analysis.

For IBR planning: IBR is now the default income-driven plan for loans disbursed before July 1, 2026. (Loans disbursed after that date are eligible for the new RAP plan.) Under IBR, your payment is capped at 10% of discretionary income for new borrowers, with forgiveness after 20 or 25 years depending on when you first borrowed. For residents understanding what their IBR payment does to an inflated principal balance, the IBR vs. standard repayment breakdown for doctors explains exactly what negative amortization looks like in practice.

For attending physicians heading into contract negotiations, understanding where your actual loan balance sits — versus where it "should" be based on published COA — is foundational to building a transition strategy from residency to attending year.

FAQ: Medical School Cost of Attendance vs Actual Debt

Why is my medical school debt higher than the cost of attendance? Several factors cause debt to exceed the published COA: interest that accrues and capitalizes during school, residency application costs not included in COA, higher-than-estimated living expenses, and personal spending during school funded through loan disbursements. By the time repayment starts, capitalized interest alone can add $40,000–$70,000 to the original borrowed amount.

What is the average medical school debt in 2024? According to the AAMC's 2023 Medical Student Education: Debt, Costs, and Loan Repayment Fact Card, the median debt for indebted MD graduates is $200,000. However, graduates from private schools and those in high cost-of-living areas frequently exit with $280,000–$350,000 or more once interest capitalization is factored in.

Does interest accrue during medical school on federal loans? Yes. Graduate Unsubsidized loans and GradPLUS loans both accrue interest from the first day of disbursement. Because most students make no payments during medical school, this interest capitalizes — it's added to your principal — at graduation or the end of the grace period. On a $200,000 balance at 8%, you're accruing roughly $16,000 per year in interest before making a single payment.

Why doesn't the medical school cost of attendance include residency application costs? COA is a federally regulated figure covering the enrollment period at that institution. Residency application costs occur in the MS4 year and technically during post-graduation — they fall outside what federal loan calculations are designed to capture. Students routinely spend $10,000–$16,000 on ERAS fees, Step 3, and interview travel, usually financed through additional GradPLUS borrowing or depleted savings.

How should I account for the COA gap when planning loan repayment? Start with your actual current balance from studentaid.gov, not your school's published COA. Run repayment projections using that real number. Model IBR payments against your expected PGY1 salary, project your balance at attending transition, then compare PSLF eligibility against aggressive payoff or refinancing using your true debt load — not the number you expected to borrow.

Run Your Own Numbers

Every physician's debt situation is different. Use the MedDebt Calculator to model your exact repayment strategy — PSLF vs. aggressive payoff vs. refinancing — with your actual loan balance, specialty, and income.

It's free, takes 2 minutes, and shows you net worth projections by year.

Disclosure: This article is for informational purposes only and does not constitute financial, legal, or tax advice. Loan program details change — always verify current rules on studentaid.gov. MedDebt may earn a referral commission if you refinance through links on this site.