When to Take USMLE Step 1: 2026 and 2027 Eligibility

Most US MD and DO students take USMLE Step 1 at the end of their second year, right before core clerkships, after a dedicated study block of roughly five to eight weeks. You do not book a date directly: you apply for a three-month eligibility period, and NBME currently sells periods running from November 1, 2026 to January 31, 2027 through October 1, 2027 to December 31, 2027 at the 2027 fee.

So the real timing question has two halves. The first is which eligibility period to buy, which is a calendar decision you make months ahead. The second is whether you are ready to sit inside it, which is a data decision: a timed NBME self-assessment above the passing line and a Free 120 you clear comfortably, not a feeling that you have studied enough. Below is each half in order, plus the change coming in 2029 that will narrow the calendar considerably.

Key takeaways

• When most people sit it: the USMLE program says most students at LCME-accredited schools take Step 1 at the end of their second year; international students test on their own program's clock.
• The 2027 windows: three-month eligibility periods start on the first of each month, from November 1, 2026 to January 31, 2027 through October 1, 2027 to December 31, 2027.
• What it costs: $695 for Step 1 through NBME in both the 2026 and 2027 fee years, plus $70 if you need to extend your eligibility period.
• Ready means data, not vibes: finished coursework, a timed NBME self-assessment above the passing line, question-bank scores trending up, and a Free 120 you clear comfortably.
• Do not rush it: Step 1 is pass/fail with only four attempts allowed, and passing it starts a seven-year clock on finishing all three Steps.
• Coming in 2029: the USMLE program is cutting the number of test days each year, so the apply-early advice gets more important, not less.

When do most students take USMLE Step 1?

For US MD and DO students, Step 1 sits at the seam between the preclinical and clinical phases of medical school. You finish the foundational science curriculum (usually the first two years, though many schools now compress this into 18 months), then take a dedicated study period, then sit Step 1 before you start your core clinical rotations. That ordering exists because Step 1 tests the integrated basic science you just spent two years learning, so the closer you sit it to that coursework, the fresher the material is.

The USMLE program states this plainly in its general common questions: in LCME-accredited medical schools, Step 1 and Step 2 can be taken in any order, but most students take Step 1 at the end of their second year and Step 2 in their fourth year. There is no rule forcing that order. It is simply what most people do.

International medical students and graduates run on a different schedule. Because curricula vary in length and structure, there is no single "end of year two" moment that fits everyone. Many test after completing their basic science coursework, sometimes alongside their ongoing program and sometimes after graduating. The common thread across both paths is the same: coursework done, readiness confirmed, then the exam.

Two common Step 1 timelines. Both gate the exam behind finished coursework and a readiness check. Source: USMLE Bulletin of Information and ECFMG eligibility rules.

There is no national deadline for Step 1 itself, but your own school almost certainly sets one. Most US programs require you to pass Step 1 before you can advance into or complete clerkships, so the practical deadline is whatever your registrar enforces, not a rule from the USMLE program. Check your school's promotion policy early, because it usually matters more to your scheduling than anything on usmle.org.

What is the best year to take Step 1?

For a traditional four-year US curriculum, the answer is the end of M2. That is what the USMLE program describes as typical, and it is what most schools build their calendar around.

The reason is not tradition. Step 1 is comprehensive basic science, and your recall of that material peaks right after you finish teaching yourself it. Sitting in M1 means testing on subjects you have not covered. Sitting during M3 means testing on material you last saw eighteen months earlier, while clerkship hours eat the study time you would need to rebuild it.

Two exceptions are real. Schools with compressed preclinical curricula (18 months is now common) move the slot earlier by design, which is a curriculum decision, not a student one. And some schools now place Step 1 after the first clinical rotations, which is covered below. In both cases your school's structure decides, not your preference. The year is rarely the live question. The eligibility period inside that year is.

Which eligibility periods are open for 2026 and 2027?

You do not apply for a date. You apply for a three-month window, and this is the part most timing guides skip entirely.

NBME, which registers students and graduates of LCME-accredited US schools, publishes its USMLE exam fees and eligibility periods by fee year. A new three-month period starts on the first of each month, so the windows overlap rather than sitting end to end.

Three practical readings of that table:

• Every month of the year is testable. Because a period starts on the first of each month, there is no month you cannot sit Step 1 in. If you want an October date, the July 1 to September 30 period will not do it, but the August, September and October starts all cover it.
• The fee year is set by your period's start, not your test date. A period beginning November 1, 2026 falls under the 2027 fee even though you might test in January 2027.
• 2028 is not bookable yet. NBME says 2028 application materials will be available by the second half of August 2027, so a student planning that far out is planning against an unpublished calendar.

Those fees cover students and graduates of LCME-accredited US schools registering through NBME. International applicants register through FSMB, where the fee schedule differs.

Who is eligible to take USMLE Step 1?

To sit Step 1, you have to fall into one of three eligibility categories, and you must meet it both when you apply and on test day. According to the official USMLE eligibility requirements, you must be a medical student officially enrolled in, or a graduate of, one of these:

• A US or Canadian medical school leading to the MD degree that is accredited by the LCME.
• A US medical school leading to the DO degree that is accredited by the Commission on Osteopathic College Accreditation (COCA).
• A medical school outside the US and Canada that is listed in the World Directory of Medical Schools as meeting ECFMG eligibility requirements.

Notice what is not on that list: there is no minimum GPA, no prerequisite score, and no requirement to have finished a specific number of courses in the USMLE rules themselves. The gatekeeping happens through your school. If you are dismissed or withdraw, you lose eligibility immediately, which is why active enrollment status is the real requirement. A leave of absence is a grey area the bulletin tells you to clear with your registration organization before you apply, and again before you test.

Who registers you depends on your category, and this changed. The NBME registers US MD and DO students and graduates, who apply through the MyUSMLE portal. International students and graduates now register through the FSMB: as the ECFMG exam-eligibility rules state, USMLE exam services formerly provided by ECFMG, including exam registration, score report delivery and customer service, are now provided by FSMB. Plenty of advice online still says ECFMG registers you. It does not.

ECFMG has not dropped out of the process, though. It still decides whether you are eligible for ECFMG Certification, and FSMB confirms that with ECFMG when you apply. For students, an authorized official at your medical school must certify your enrollment and that you will have completed the basic medical science component of the curriculum by the beginning of your eligibility period, not by your test date. That distinction catches people out: pick a window that opens before your coursework ends and you are not eligible for it. Graduates additionally need primary-source verification of their medical diploma, which takes time, so start early.

How the eligibility period and scheduling actually work

Here is the sequence, straight from the USMLE Bulletin of Information.

When you apply, you select your three-month eligibility period. Once your registration is complete, the organization that registered you issues a scheduling permit by email. Only then can you go to the Prometric website and book an actual test date, and per the USMLE applying and scheduling rules, scheduling is not available more than six months in advance.

A few practical consequences fall out of this:

• Apply before you want the window to open, not on the day you hope to test. Registration and permit issuance take time, and popular test dates near the end of an academic term fill up.
• Book your Prometric seat as soon as the permit arrives. Seats are first come, first served, and the USMLE program itself recommends booking early in your eligibility period so you keep room to reschedule.
• Rescheduling is free until it is not. You may move your appointment within your eligibility period, but you pay a fee for any change made during the 45 calendar days before your scheduled date.
• You get one safety net, and it costs $70. If you cannot test within your eligibility period, you can request a one-time contiguous extension to the next period. It is one extension, not unlimited.
• Letting the window lapse is the expensive mistake. If you do not test within your original or extended period, you must reapply with a new application and new fees. The old fees are non-refundable and non-transferable, so a lapsed window costs you the full $695 again.

The exam itself is a one-day, eight-hour session at a Prometric test center. The structure changed on May 14, 2026: Step 1 is now divided into fourteen 30-minute blocks of no more than 20 questions each, with a minimum of 55 minutes of break time and a 5-minute optional tutorial, per the USMLE Step 1 exam overview. Before that date it ran as seven 60-minute blocks capped at 280 items total, which is the format most older guides still describe. The day is just as long either way, so schedule it when your energy and your preparation both peak.

What Designated Testing Dates will change in 2029

The biggest coming change to Step 1 timing has nothing to do with your curriculum. The USMLE program is moving from on-demand testing to a limited number of fixed test days each year, a model it calls Designated Testing Dates. On those days, every Prometric center available for USMLE testing is reserved exclusively for Step exams.

The transition takes effect in January 2029. That date moved: the change was first announced on June 23, 2026 as starting in 2028, and the timeline was updated on August 6, 2026 to January 2029. The program has said the decision itself is final.

What it means for your planning depends on where you are now:

• Testing in 2027 or 2028: nothing changes. Continuous testing and rolling three-month eligibility periods run as described above.
• Testing in 2029 or later: you will be choosing from a published list of dates rather than any open seat. The program says those dates will be published more than a year ahead of each calendar year, so you will have notice, but a slipped date may cost you months instead of weeks.
• Everyone: eligibility rules do not change. The Designated Testing Dates FAQs confirm that the eligibility requirements for every Step stay exactly as they are, and that rescheduling remains possible, though availability will vary by date and location.

How long should your dedicated study period be?

Most students give themselves a dedicated study period of about five to eight weeks between finishing coursework and sitting Step 1. That range is a rule of thumb, not an official requirement, and the right length depends on how strong your foundation already is when dedicated begins.

The mistake is treating dedicated as the time to learn the content for the first time. It is not. Dedicated works best as a consolidation and practice phase: you should already know the material reasonably well from your coursework and your day-to-day question practice, and you use these weeks to do large volumes of practice questions, patch weak areas, and take timed assessments. If you reach dedicated and realize you are learning whole subjects from scratch, that is a signal you may be sitting too early, not that you need a longer dedicated block.

Work backwards from this when you pick a window. If your coursework ends in late April and you want six weeks of dedicated, you are testing in June, which means an eligibility period starting April 1, May 1 or June 1 all work, and the June start leaves the least room if anything slips.

If you want a week-by-week structure for those weeks, see our USMLE Step 1 study plan. This article is about when to sit; that one is about how to spend the run-up.

How do you know you are ready for Step 1?

Readiness is measurable, and you should treat it that way. The students who pass comfortably tend to clear the same four signals before they lock in a date. If you are missing one, it usually pays to move your date rather than hope.

The four readiness signals that say it is time to sit Step 1. Source: standard USMLE readiness gauges (timed NBME self-assessments and the official Free 120).

1. Your NBME self-assessment predicts a pass with margin. The NBME Comprehensive Basic Science Self-Assessments are built by the same organization that writes the real exam, and they are the single most trusted readiness gauge. Take them timed, and you want a result that clears the passing standard with room to spare rather than one that lands right on the line.

2. Your question-bank percentage is on track. Working UWorld's Step 1 question bank thoroughly is the most reliable predictor of readiness, and what matters is the trend. First-pass scores that are climbing week over week signal that your reasoning is maturing; scores stuck near where you started signal that more time will help.

3. You passed a timed Free 120 comfortably. The official USMLE Free 120 is the closest thing to the real exam you can get, because the items come straight from the test makers. Do it timed, in the back half of your prep, and treat a comfortable pass as confirmation rather than a coin flip.

4. Your coursework is genuinely complete. Step 1 is comprehensive, so a large untouched subject (say, you never really learned renal or biochem) will cost you across the whole exam, not just one block. Finishing the underlying content is the precondition that makes the other three signals meaningful.

You can gut-check your practice percentages against the reality of current Step 1 pass rates. In 2025, the most recent year in the official tables, first-attempt pass rates were 93% for US MD students (23,028 tested), 89% for US DO students (4,623 tested), and 75% for students and graduates of non-US schools (22,066 tested), according to USMLE performance data. All three figures are two points above 2024. Those numbers describe populations, not your personal odds, but they are a useful reminder that a comfortable margin on your self-assessments beats a borderline one.

How pass/fail changed the timing decision

Step 1 has been reported as pass or fail only since January 26, 2022, with a minimum passing standard of 196 on the old three-digit scale and no number on your report, per the official USMLE transition notice. That change reshaped the timing conversation in two ways.

First, because there is no score to maximize, some schools have used the shift to move Step 1 later, after students' first clinical rotations, on the theory that clinical context helps and there is no high number to protect. If your school does this, follow your school's structure. For most programs, though, the end-of-preclinical slot is still standard.

Second, and more importantly for your decision, pass/fail did not make Step 1 a low-stakes formality. The stakes of a failed attempt are real. The USMLE allows only four attempts to pass each Step, a limit reduced from six in July 2021, and you cannot take the same Step more than three times within a 12-month period. The fourth attempt carries its own waiting rules: it must fall at least 12 months after your first attempt at that exam and at least six months after your most recent one. A failed attempt also shows up on your transcript for residency programs. So the pass/fail era did not lower the cost of sitting too early. If anything, the four-attempt cap raised it. "Take it and see" is not a strategy Step 1 rewards.

There is one more clock worth knowing about before you sit. Passing Step 1 starts it: the USMLE common questions page linked above says most medical licensing authorities require completion of all three Steps within a seven-year period, which begins when you pass your first Step. For a student on a standard timeline that is comfortable. For anyone adding a research year, a dual degree, or a gap, it is worth checking against your target state's rules before you pick a date.

Common Step 1 timing mistakes

• Scheduling a date first, then reverse-engineering readiness. Pick your date from your practice data, not the other way around. A date you booked in a panic is not a deadline your NBME scores have to honor.
• Confusing "finished dedicated" with "ready." Time spent is not the metric. If your self-assessments are not clearing the bar, more calendar does not fix that on its own; targeted practice does.
• Choosing an eligibility period with no slack at the end. If your window closes the same week you planned to test, one illness or one full test center costs you $70 for an extension or $695 for a reapplication.
• Applying too late. Registration, permit issuance, and Prometric availability all take time. Build in a buffer so a slow permit or a full test center does not force your hand.
• Ignoring your own school's rules. Your program's promotion and clerkship-entry policies are usually the real deadline. Read them before you plan anything around the USMLE's own (much looser) rules.
• For international students, starting the ECFMG process late. School certification and credential verification are not instant, and your basic science has to be certified complete by the start of your window, not by test day.

The bottom line

Take Step 1 when your coursework is done and your timed practice says you will pass, not on a date you picked out of hope or panic. For US MD and DO students that lands at the end of the second year; for international students it lands wherever your program and the ECFMG process put you. Pick an eligibility period with a few weeks of slack at the end, confirm eligibility early, book your Prometric seat the moment your permit arrives, and let your NBME self-assessments and a timed Free 120 make the final call. If you want to build the run-up itself, start with our free USMLE Step 1 resources and the wider USMLE resource directory, all rated against our documented review methodology.

Frequently asked questions

When do most medical students take USMLE Step 1?

Most US MD and DO students take Step 1 at the end of their second year, before core clerkships, after a dedicated study period of about five to eight weeks. That is the USMLE program's own description of the typical path at LCME-accredited schools. International students test on their own program's schedule, often after finishing basic science coursework. There is no national deadline, but your own medical school usually requires a pass before you advance in clerkships.

What eligibility periods are available for Step 1 in 2027?

Three-month eligibility periods start on the first of each month. For the 2027 fee year, NBME lists periods running from November 1, 2026 to January 31, 2027 through October 1, 2027 to December 31, 2027. Step 1 costs $695 in that year for students registering through NBME, and extending a period costs $70. Application materials for 2028 are due to be available by the second half of August 2027.

What are the eligibility requirements for USMLE Step 1?

You must be officially enrolled in, or a graduate of, a medical school in one of three categories: a US or Canadian MD school accredited by the LCME, a US DO school accredited by COCA, or an international school listed in the World Directory of Medical Schools as meeting ECFMG requirements. You have to meet the category at both application and test time. US MD and DO candidates register through NBME; international students and graduates now register through FSMB, with ECFMG confirming their certification eligibility.

How far in advance do you register and schedule Step 1?

You select a three-month eligibility period when you apply. After registration, your registration organization issues a scheduling permit, and you then book a seat at a Prometric test center. Scheduling is not available more than six months in advance, so apply well before your target window and book as soon as your permit arrives.

Can you change your Step 1 test date or eligibility period?

Yes, within limits. You can reschedule your Prometric appointment within your eligibility period, though a change made during the 45 calendar days before your appointment carries a fee. If you cannot test within the period at all, you may request a one-time contiguous extension to the next period for $70. Let the window lapse without extending and you have to reapply and pay the full exam fee again.

What is the seven-year rule for the USMLE?

Most medical licensing authorities require you to complete Steps 1, 2 and 3 within seven years, and the clock starts when you pass your first Step. It rarely binds a student on a standard timeline, but it is worth checking if you are adding a research year, a dual degree or a long gap between Steps. Some states grant exceptions for combined-degree candidates, and the rules are set by each licensing authority rather than by the USMLE program.

How do I know if I am ready to take Step 1?

Use four signals: a timed NBME self-assessment that predicts a pass with margin, question-bank scores that are trending up, a timed Free 120 you clear comfortably, and completed preclinical coursework with no large gaps. If you are missing one, moving your date is usually smarter than hoping. Readiness is measurable, so let the data decide rather than a feeling of "I have studied a lot."

Does it matter when you take Step 1 now that it is pass/fail?

The timing still matters, just for different reasons. Since there is no score to maximize, the goal is a confident pass, not a high number, and some schools have moved Step 1 slightly later. But pass/fail did not make it easy: you get only four attempts to pass, a fourth attempt carries a 12-month wait from your first try, and a failure appears on your transcript. Sitting before you are ready is a genuine risk, not a free trial.

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