Study guide
1.1 Format, Scoring, Fees, and 2026 Software Change
USMLE Step 1 Exam
Track your progress as you read
Finished sections get a check mark.
1 Chapter 1: Step 1 Exam Roadmap and Official Sources
1.1 Format, Scoring, Fees, and 2026 Software Change 1.2 Eligibility, Results, Retakes, and Source Control
2 Chapter 2: Question Method and Study System
2.1 Single-Best-Answer Vignette Method 2.2 Blueprint-Weighted Study System
3 Chapter 3: Foundational Science Mechanisms
3.1 Biochemistry, Genetics, and Cell Biology 3.2 Microbiology, Immunology, and Pharmacology Anchors
4 Chapter 4: Blood, Lymphoreticular, and Immune Systems
4.1 Hematology and Coagulation Reasoning 4.2 Immune Dysregulation and Lymphoid Disease
5 Chapter 5: Behavioral Health, Nervous System, and Special Senses
5.1 Neuroanatomy Localization and Neurologic Mechanisms 5.2 Behavioral Health, Communication, and Special Senses
6 Cardiovascular System
Hemodynamics, Murmurs, and Ischemia Vascular Pathology, Arrhythmias, and Cardiac Drugs
7 Respiratory, Renal, and Urinary Systems
Pulmonary Mechanics, Gas Exchange, and Pathology Renal Physiology, Electrolytes, and Acid-Base
8 Gastrointestinal System and Nutrition
GI Physiology, Pathology, and Motility Hepatobiliary, Pancreas, and Nutrition
9 Reproductive, Endocrine, and Human Development
Endocrine Axes, Metabolism, and Diabetes Reproductive Physiology, Pathology, and Development
10 Musculoskeletal, Skin, and Connective Tissue
Muscle, Bone, Joint, and Rheumatology Skin, Dermatopathology, and Connective Tissue
11 Multisystem Processes and Infectious Disease
Shock, Sepsis, Inflammation, and Injury Systemic Infections, Autoimmunity, Toxicology, and Cancer Principles
12 Biostatistics, Population Health, and Final Review
Biostatistics, Epidemiology, and Population Health Final Review, Exam-Day Risk Control, and Error Analysis
1.1 Format, Scoring, Fees, and 2026 Software Change
Key Takeaways Explain This Topic AI
USMLE Step 1 assesses basic science concepts underlying health, disease, and therapy rather than isolated memorized facts.
Step 1 has been reported Pass/Fail for exams taken on or after January 26, 2022.
Before May 14, 2026, Step 1 is seven 60-minute blocks in one 8-hour session, with no more than 40 questions per block and no more than 280 total items.
On or after May 14, 2026, Step 1 is fourteen 30-minute blocks in one 8-hour session, with no more than 20 questions per block and no more than 280 total items.
The 2026/2027 Step 1 fee is $695; testing outside the United States and Canada also has a $210 region fee that is not a USMLE fee.
Prometric administers Step 1, so scheduling, admission logistics, and test-center readiness should be checked before the dedicated study period ends.
Last updated: June 2026
What Step 1 Is Built To Measure
The United States Medical Licensing Examination (USMLE) Step 1 is the first written USMLE Step most medical students encounter, but its purpose is broader than a school final. Step 1 assesses whether you can apply basic science concepts that underlie health, disease, and therapy. That wording matters. The exam can ask about anatomy, biochemistry, physiology, pathology, microbiology, immunology, pharmacology, behavioral science, epidemiology, and related disciplines, but the task is usually integration: connect a mechanism to a clinical finding, a drug effect, a laboratory pattern, or a disease process.
Treat the exam roadmap as a control document for your study calendar. If your calendar is based on a stale block structure, a stale fee, or a misunderstanding of pass/fail reporting, you can waste energy rehearsing the wrong day. The official facts below are current as of June 6, 2026 and should be rechecked before scheduling.
Scoring Status
Step 1 is reported as Pass/Fail for exams taken on or after January 26, 2022. The old equivalent passing standard is 196 on the prior three-digit scale, but USMLE states that future passing-standard reviews will not be reported as a three-digit score. For examinees, the practical point is direct: your study target is reliable performance above the passing standard, not optimization for a reported numeric score.
Pass/Fail does not make the exam low stakes. It changes the feedback you receive. Because you will not get a three-digit score for a passing attempt, your preparation should use multiple independent signals: school assessments, question-bank performance trends, content-outline coverage, self-assessment timing, and your ability to explain why an answer is right or wrong. Do not use one strong block, one weak block, or one anecdotal benchmark as definitive evidence.
Format Change By Test Date
The most important 2026 logistics update is the Step 1 software change on May 14, 2026. The total testing session remains one 8-hour day and the maximum item count remains no more than 280 questions, but block length, questions per block, tutorial time, and minimum break time change.
- Test date Blocks Block length Questions per block Total items Break time Optional tutorial
- Before May 14, 2026 7 60 minutes <=40 <=280 Minimum 45 minutes 15 minutes
- On or after May 14, 2026 14 30 minutes <=20 <=280 Minimum 55 minutes 5 minutes
The new structure is not just a cosmetic screen change. Fourteen shorter blocks create more frequent transition points. That can help fatigue management, but it also means you must become comfortable with more start-stop cycles and more decisions about breaks. A student who has practiced only seven long blocks may be surprised by the rhythm of fourteen shorter blocks. A student testing before the change should not over-rehearse the newer rhythm and then be surprised by 60-minute blocks.
Pacing Implications
For the pre-May 14 format, one 60-minute block with up to 40 questions creates a rough maximum pace of 90 seconds per question. That does not mean every question should receive exactly 90 seconds. Some items should be answered quickly because the mechanism is clear; others require deliberate comparison of similar diagnoses, drugs, enzymes, or physiologic changes.
For the on/after-May 14 format, one 30-minute block with up to 20 questions preserves the same rough maximum pace of 90 seconds per question. The difference is recovery and workflow. You will close blocks more often, reset your concentration more often, and decide whether to bank or spend break time more often. Practice should include short-block execution, not just total question volume.
A useful rehearsal rule is to separate knowledge review from test-day behavior. During content review, pause long enough to learn. During timed practice, enforce the clock. When you review a timed block, classify errors by cause: knowledge gap, misread stem, premature closure, calculation error, or uncertainty between two plausible answers. This keeps Pass/Fail preparation from becoming vague confidence tracking.
Fees And Administration
The 2026/2027 Step 1 fee is $695. If you test outside the United States and Canada, an additional $210 region fee applies, and that region fee is not a USMLE fee. Plan around the official fee rather than a school handout, an old forum post, or outdated metadata.
Prometric administers Step 1. That means test-center logistics are part of exam readiness. Confirm your scheduling permit, name match, identification requirements, arrival time, and local test-center route well before test day. A strong content plan can still be disrupted by a preventable administrative problem.
Practical Roadmap For Examinees
Use this sequence when building your first-pass Step 1 plan:
Confirm whether your test date is before May 14, 2026 or on/after May 14, 2026.
Match your full-length practice sessions to the correct block rhythm.
Build timed blocks around application of basic science mechanisms, not only recall cards.
Reserve time to review official content areas that feel low yield but still appear on the blueprint, including population health and communication.
Recheck official USMLE pages before paying fees, selecting a date, or making travel plans.
The ExamFinch Step 1 practice bank spans general principles, organ systems, multisystem processes, and biostatistics. Use it as retrieval practice and explanation training. Do not treat any practice bank, including this one, as the authority for current fees, block timing, eligibility, or scoring. Those facts belong to USMLE source pages.
Bottom Line
Step 1 preparation starts with the right operating model. You are preparing for an 8-hour, Prometric-administered, pass/fail exam that tests integrated basic science. The May 14, 2026 software change changes the exam-day rhythm, not the overall maximum question count. Your date determines the block structure you should rehearse.