A private lender will probably quote you a lower interest rate than the federal government for medical school. Take the federal loans anyway — at least up to the federal limits — unless you can already articulate exactly why your situation is the exception. The reason is not the rate. It is that federal loans come bundled with options worth tens of thousands of dollars during the one stretch of your career when you will be both highly indebted and modestly paid: the 3–7 years of residency and fellowship between graduation and your attending contract.
The median medical school graduate carries roughly $200,000 in education debt into a residency paying $60,000–$70,000 a year. On that income, the required payment on $200,000 of private debt at even a generous 6% fixed is about $2,220 per month over 10 years — more than half of a resident's monthly take-home. The federal system's prices that same period at a few hundred dollars a month, and if your career runs through nonprofit hospitals (as most residencies and roughly half of attending jobs do), can erase a six-figure balance entirely. A private rate discount of 1–2% does not compete with that, and the arithmetic below shows why.
One thing before the comparison: 2026 is the most consequential year for this decision in a generation, because the federal side just changed.
What changed in 2026: caps and the end of Grad PLUS
For two decades, the federal system would lend a medical student essentially the full cost of attendance: Direct Unsubsidized loans up to an annual cap, then Grad PLUS loans for everything above it. The 2025 budget reconciliation law ended that structure for new borrowers.
As of this writing, for loans first disbursed on or after July 1, 2026:
- Grad PLUS is eliminated for new borrowers. The catch-all federal loan that filled the gap between the unsubsidized cap and a $90,000+ cost of attendance is gone for students starting after the cutoff.
- Professional-degree borrowing is capped at $50,000 per year and $200,000 lifetime for professional students, medical students included.
- Students already enrolled before July 1, 2026 get a transition allowance: continued borrowing under the prior limits for up to three years.
The strategic consequence is blunt: at a school whose true cost of attendance runs $75,000–$100,000 per year, new medical students may no longer be able to finance entirely with federal loans. The question for the class of 2030 is not "federal or private" — it is "federal first, then how to handle the gap." That makes the priority order more important, not less.
The rate comparison, honestly
Federal graduate loan rates are set each year off the May 10-year Treasury auction and fixed for the life of the loan. For 2026-27 — loans first disbursed July 1, 2026 through June 30, 2027 — Direct Unsubsidized for graduate students is 8.07%, up from 7.94% the prior year, with a 1.057% origination fee.
Private medical school loans from the major lenders will often quote fixed rates 1–3 points below the federal rate for borrowers with excellent credit or a cosigner, with no origination fee. On rate and fee alone, private wins. That is precisely why the comparison cannot be made on rate and fee alone.
| Federal Direct Unsubsidized | Private med school loan | |
|---|---|---|
| Rate | Fixed, set annually by formula | Often 1–3% lower fixed (with strong credit/cosigner) |
| Origination fee | ~1% | Usually $0 |
| Payment during residency | Income-driven: ~$0–$400/mo at resident income | Full amortized payment, or deferral with interest compounding |
| PSLF eligibility | Yes | Never |
| Forgiveness at end of IDR term | Yes (taxability varies by plan/year) | No |
| Death/disability discharge | Federal discharge by law | Varies by lender contract |
| Cosigner | Never required | Often required at student rates |
The option value: what you're actually buying with a higher rate
Think of the federal premium — say 1.5% on the rate — as an insurance premium. Here is what it buys:
Income-driven repayment during training. Federal IDR sets your payment as a percentage of discretionary income, not your balance. A PGY-2 earning $66,000 owes a few hundred dollars a month regardless of whether the balance is $150,000 or $350,000. Private loans price payments off the balance. This single feature is what makes a $250,000 debt survivable on a resident salary without a cosigned bailout. (For loans made on or after July 1, 2026, that plan is the Repayment Assistance Plan: payments of 1–10% of AGI depending on income, a $10 monthly minimum, unpaid interest waived so the balance stops growing, PSLF-eligible, with forgiveness at 30 years.)
PSLF. Every ACGME residency at a nonprofit or university hospital is qualifying employment, which means medical training is 3–7 years of nearly-automatic PSLF credit at the lowest payments of your life. A physician who trains for 5 years and then spends 5 years at a nonprofit hospital can have the entire remaining balance forgiven, federal-tax-free. Private loans are permanently ineligible. Signing away PSLF eligibility as an MS-1 — when you cannot possibly know whether your eventual job will be at a 501(c)(3) — is discarding a lottery ticket whose expected value is real money.
Downside protection. Federal loans are discharged at death and total disability by statute, carry deferment and forbearance rights, and have no cosigner — meaning no parent whose retirement is attached to your outcome. Private terms vary lender to lender and are whatever the contract says.
Key insight
The asymmetry that decides this: you can always convert federal loans into private loans later — that is what refinancing is — but you can never convert private loans into federal loans. Choosing federal at origination keeps every door open: PSLF, IDR, and the option to refinance as an attending if forgiveness turns out not to fit your career. Choosing private at origination closes the federal doors forever. When the costs of the two paths are within a couple of points, take the one that preserves the options, decide at 31 with full information instead of at 23 with none.
A worked example over a 7-year training timeline
Assumptions, stated explicitly: $250,000 borrowed for medical school; 4-year residency plus 3-year fellowship at a nonprofit academic center ($62,000 rising to $78,000 over the 7 years); single filer; then an attending job. Two financing paths — all federal at 8.0% effective (rate plus fee), versus all private at 6.0% with no fee. Round numbers, directionally sound.
Path A: Federal, IDR during training, PSLF-track. IDR payments at resident/fellow income run roughly $250–$550 per month across the 7 years — call it $33,000 of total payments during training. All 84 months count toward PSLF. The balance grows despite payments (payments below accrued interest), arriving at attending year 1 around $300,000 depending on plan treatment of unpaid interest. The attending then takes a 501(c)(3) hospital job: 36 more months of qualifying payments at roughly $2,300–$2,800/month (~$92,000) reaches 120, and the remaining ~$290,000 is forgiven, federal-tax-free. Total out of pocket: ~$125,000 on $250,000 borrowed.
Path B: Private at 6%. Deferred during training, interest compounds: $250,000 grows to roughly $380,000 over 7 years. Repaid over 10 attending years: about $4,200/month, ~$506,000 total. Even choosing interest-only payments during training (~$1,250/month — a quarter of a resident's take-home) to hold the balance at $250,000, the attending decade still costs ~$2,780/month, ~$333,000, plus the $105,000 paid during training: ~$438,000 total.
Example calculation
Path A (federal + PSLF): ~$125,000 total payments. Path B (private, deferred): ~$506,000. Path B (private, interest-only in training): ~$438,000. The federal path wins by roughly $300,000+ — and that is with the federal rate 2 points higher. Even if the physician's career ends up entirely for-profit and PSLF never pays off, the federal borrower simply refinances at attending year 1 into the same private market, having lost only the rate differential during training (~$35,000–$45,000) in exchange for 7 years of $300–$550 payments instead of $1,250–$2,220. The downside of choosing federal is small and bounded; the downside of choosing private is large and irreversible.
A physician who knows with certainty they will never work nonprofit narrows the gap considerably — but no MS-1 knows that, and about half of U.S. hospital employment is PSLF-qualifying.
When private loans genuinely make sense
Private loans are not a scam; they are mispriced for most medical students but correctly priced for a few situations:
- The post-cap gap. Under the new borrowing limits, students at expensive schools may exhaust federal eligibility before covering cost of attendance. Then the comparison is private loans versus institutional loans versus a cheaper school — there is no federal option left for the marginal dollar. Borrow federal to the cap first; shop the gap hard (school-based loans, HPSP/military and service-commitment programs, and state loan-repayment programs all belong in that comparison).
- A short, certain horizon. A student with family resources arriving mid-training, or a committed path into a high-paying for-profit specialty practice with plans to clear debt in 2–3 attending years, is buying little option value from the federal system.
- Refinancing as an attending — the legitimate home of private credit in physician finance. Once you know your employer is for-profit, your income is high, and PSLF is genuinely off the table, refinancing federal debt to a lower private rate is often correct. That decision belongs at year 1 of attendinghood, not year 1 of medical school.
Important
Do not let a cosigned private rate quote anchor the decision. The quoted 5.5% assumes a parent's credit and attaches their finances to your loans for a decade. Price the private option at your standalone rate, and read the death-and-disability discharge terms before comparing anything.
Common questions
Federal rates are higher. Doesn't that compound against me during a 7-year training path?
Yes — that is the real cost of the federal option, roughly 1–2% per year on the balance. The worked example above prices it: about $35,000–$45,000 over 7 years on $250,000. Weigh that against IDR cash-flow relief during residency (worth $700–$1,800 per month versus an amortizing private payment) and the live possibility of six-figure forgiveness. The premium is real; what it buys is usually worth multiples of it.
Should I borrow federal even for living expenses, or use private loans for the cheaper part?
Federal first, for every dollar up to your federal limit. Splitting "tuition on federal, living expenses on private" just hands the private lender a slice of debt that would otherwise carry IDR and PSLF eligibility. The ordering is: scholarships and family money, then federal to the cap, then — only for any remaining gap — institutional and private credit, compared carefully.
What about the new caps — will $200,000 lifetime even cover medical school?
At many private schools, no: four years at an $85,000+ cost of attendance overruns a $200,000 lifetime cap. This is the new central planning problem for pre-meds, and it makes school price a bigger variable than it has been in decades. A state school at $45,000/year may now be fully federally financeable while a $95,000/year private school forces $100,000+ of private debt with none of the federal protections. Factor that into the admissions decision itself.
Do parent loans or home equity beat private student loans for the gap?
Sometimes on rate, never on protection. Home equity puts the family house behind your medical education; parent-held debt has its own rates and risks and no IDR. Compare honestly, and treat all of them as inferior to federal dollars — they compete only for the gap above the federal cap.
If I take federal loans now, can I switch to private later?
Yes, at any time, by refinancing — typically sensible only once you are an attending at a for-profit employer with PSLF ruled out. The reverse conversion does not exist, which is the core reason to start federal.
What to do next
- Price your true 4-year cost of attendance at each school you're considering, and map it against current federal annual and lifetime limits to see whether a private-loan gap exists at all.
- Borrow in priority order: grants and scholarships → federal Direct Unsubsidized to the cap → only then compare institutional, service-commitment, and private options for any gap.
- Confirm the current rules before signing anything — 2026-27 rates, the new caps, and the repayment plan that will govern your loans are all newly set this cycle. studentaid.gov is the source of record.
- Minimize the borrowed amount itself — the financing choice moves tens of thousands; the school-cost choice moves hundreds of thousands.
- Calendar a decision point for attending year 1: re-evaluate PSLF versus refinancing the month you sign your first contract, when you finally know your employer's tax status and your real income.
The PSLF half of that year-1 decision is exactly what the PSLF complete guide covers, and once you are in repayment, the PSLF Guardian tracks qualifying employment and payments from your first residency paycheck — so the option value you preserved by choosing federal is never lost to paperwork.