What is USMLE Step 3?
USMLE Step 3 is the final examination in the USMLE sequence, taken over two separate days. Day 1, Foundations of Independent Practice, tests basic clinical science with about 232 multiple-choice questions; Day 2, Advanced Clinical Medicine, adds about 180 questions plus 13 to 14 computer-based case simulations. It assesses whether a physician can practice medicine unsupervised.
It is the only Step that includes interactive Computer-based Case Simulations (CCS) alongside its multiple-choice blocks, and the only one taken after - or, for some candidates, just before - the start of residency. The sections that follow break down each day, the scoring, eligibility, timing, fees, and the retake rules in full.
How is USMLE Step 3 structured across its two test days?
USMLE Step 3 is delivered over two test days that are usually scheduled on separate calendar days within the same eligibility period rather than back to back. The first day, Foundations of Independent Practice (FIP), runs about seven hours; the second, Advanced Clinical Medicine (ACM), runs about nine hours because it adds interactive case simulations to the multiple-choice blocks. Per the 2026 Bulletin of Information, every item count below is approximate and can vary slightly by test form.
Both days share the same break structure: 45 minutes of authorized break time, plus a short pre-exam tutorial whose unused minutes roll into your break allowance. Unused block time is added to your break as well, so finishing a block early buys you rest later. The table below lays the two days side by side so you can see where the volume and the time pressure sit before you plan your prep.
| Feature | Day 1 - Foundations of Independent Practice | Day 2 - Advanced Clinical Medicine |
|---|---|---|
| Multiple-choice items | About 232 questions | About 180 questions |
| MCQ blocks | Six 60-minute blocks | Six 45-minute blocks |
| Case simulations (CCS) | None | 13 to 14 CCS cases, 10 or 20 minutes each |
| Approximate session length | About 7 hours | About 9 hours |
| Main focus | Basic science principles, biostatistics, pharmacology, ethics | Patient management, diagnosis, prognosis, CCS simulations |
| Authorized break time | 45 minutes per day | 45 minutes per day |
Scroll horizontally to view all columns.
What is Day 1 - Foundations of Independent Practice?
Day 1, Foundations of Independent Practice, is the more science-heavy of the two days. It contains about 232 multiple-choice questions split across six 60-minute blocks, and it leans on the basic medical and scientific principles that underpin safe practice. Expect question sets built around scientific abstracts and even pharmaceutical advertisements, alongside biostatistics and epidemiology, pharmacology, and medical ethics. These formats reward careful reading of data and study design as much as raw recall.
FIP is where your ability to interpret evidence gets tested directly. The abstract-based and advertisement-based sets ask you to judge whether a claim is supported by the numbers in front of you, which is a different skill from the pattern recognition that carries much of Day 2. If your Step 1 foundations feel shaky, this is the day to shore them up first - our Step 1 study guide and the pass/fail explainer are good places to refresh the fundamentals.
What is Day 2 - Advanced Clinical Medicine and the CCS cases?
Day 2, Advanced Clinical Medicine, focuses on the evolving management of patients over time. It opens with about 180 multiple-choice questions in six 45-minute blocks, then adds 13 to 14 Computer-based Case Simulations (CCS). The whole session runs about nine hours, making it the longer and more demanding of the two days.
CCS cases are the feature that sets Step 3 apart from Step 1 and Step 2 CK. Each case is an interactive patient-management simulation: you advance a simulated clock, order tests, prescribe treatments, and move the patient between care settings while their condition evolves in response to what you do. Each case is allotted a maximum of 10 or 20 minutes of real time. Because the clock is part of the exercise, timing and sequencing decisions - not just the right final answer - affect your result, so practicing with the official case-simulation software before test day is close to non-negotiable. If Day 2's clinical reasoning is your weak point, the Step 2 CK guide covers the same management-focused thinking in depth.
How is USMLE Step 3 scored?
USMLE Step 3 is reported on a 3-digit scale, and the current minimum passing score is 200, confirmed on the 2026 sample score report. Step 3 is criterion-referenced and reported as pass or fail, so there is no fixed percentage of candidates who pass and no curve against other test takers. The Bulletin indicates you need to answer roughly 60 percent of items correctly to pass, though that figure is approximate and the exact standard is set by performance against a defined criterion, not by a fixed count of raw items.
The CCS cases carry real weight in that decision. Per USMLE, the case-simulation score contributes to your overall pass or fail outcome, and its proportional weight is no greater than the share of total testing time spent on CCS. In practice that means you cannot ignore the simulations and coast on the multiple-choice blocks. For how and when results are posted after you finish, see the USMLE score release timeline; the pass or fail mechanics that first appeared at Step 1 are covered in our Step 1 explainer.
- •Reported on a 3-digit scale; the minimum passing score is 200 (per the 2026 sample score report).
- •Pass or fail and criterion-referenced - there is no fixed pass percentage and no curve.
- •You need to answer roughly 60 percent of items correctly to pass (approximate, per the Bulletin).
- •CCS weight is no greater than the share of total test time spent on the case simulations.
Who is eligible, and when should you take Step 3?
To sit Step 3 you must have passed both Step 1 and Step 2 CK and hold an MD or DO degree - or, for international medical graduates, hold ECFMG certification. Notably, the USMLE program itself does not require you to have completed, or even started, postgraduate residency training before you take Step 3. Some state medical boards, however, require roughly one year of residency before they will grant a license, so the licensing rule and the testing rule are separate questions. Confirm your state board's requirement before you build a timeline. Remember too that all Steps - Step 1, Step 2 CK, and both Step 3 days - must fall within a single seven-year window.
So when should you take it? Many candidates sit Step 3 during intern year (PGY-1), when clinical management is fresh and the seven-year clock still has room. Others take it before residency starts to strengthen a residency application or, for some visa pathways, to support an H-1B route. The right timing depends on your residency workload, your state's licensing rule, and how close you are to that seven-year deadline. If you have not yet cleared the earlier Steps, work backward from Step 2 CK first.
What does Step 3 cost, and what are the retake rules?
The Step 3 application fee is 955 US dollars, charged by the FSMB and applicable to eligibility periods running from November 1, 2025 through December 31, 2026. It is non-refundable and non-transferable, so book only once your dates are firm. For reference, Step 1 and Step 2 CK cost 695 US dollars each in 2026. These are 2026 figures tied to the current eligibility window; fees change annually, so re-check the FSMB before you pay.
Retake rules are strict. You may not take the same Step more than three times within any 12-month period, and a fourth attempt must come at least 12 months after your first attempt and at least six months after your most recent one, with incomplete attempts counting toward the total. You cannot retake a Step once you have passed it. USMLE also enforces a lifetime cap on the number of attempts to pass any given Step - confirm the current wording on usmle.org, since attempt policies and state-specific rules can change.
| Item | Detail |
|---|---|
| Step 3 application fee | 955 US dollars (FSMB), eligibility periods Nov 1 2025 to Dec 31 2026 |
| Step 1 and Step 2 CK fees | 695 US dollars each in 2026 (for reference) |
| Minimum passing score | 200 on the 3-digit scale |
| Attempts per 12 months | No more than 3 times within any 12-month period |
| Fourth attempt timing | At least 12 months after the first attempt and 6 months after the most recent |
| Once passed | You cannot retake a Step you have already passed |
| Completion window | All Steps within a single 7-year period |
Scroll horizontally to view all columns.
What are the Step 3 pass rates and 2026 changes?
Step 3 pass rates are high for well-prepared, first-time takers, but always read them by cohort and by year. For 2024 first-time takers, published performance data indicated approximately 97 percent for US and Canadian MD graduates, about 93 percent for DO graduates, and about 89 percent for non-US and Canadian international graduates; the 2023 figures ran a few points higher for the DO and IMG groups. Treat these as approximate and confirm the exact figure for your cohort and year on the USMLE performance-data page before you rely on it.
One 2026 change worth knowing is administrative, not academic. The organizations that co-sponsor Step 3 services are shifting: services for US medical students and graduates are moving from the FSMB toward the NBME, while services for international graduates move from ECFMG/Intealth toward the FSMB. This affects where you register and who supports you, not the exam's content or format. The 2026 Bulletin also now cites 13 to 14 CCS cases rather than the flat 13 many older guides quote; the multiple-choice counts are unchanged.
If your date is close and you want support, Exam Assist works with USMLE candidates on pay-after-pass terms - you pay only after you hit your target, not upfront. Message us with your test dates and the areas running weakest and we will map out your options confidentially. Exam Assist is independent and is not affiliated with the USMLE, NBME, FSMB, or ECFMG.