How to register for COMLEX-USA: eligibility, fees and scheduling
To register for COMLEX, you first need your college of osteopathic medicine (or residency program director for Level 3) to make you eligible; then you register, pay and schedule through your NBOME account. Dates open about six months ahead, and the NBOME advises booking at least 120 days before the date you want because seats are limited. Levels 1 and 2-CE cost $745 each and Level 3 $950.
First checked October 12, 2026; rechecked October 21, 2026 · Sources: NBOME’s Bulletin of Information (Registration & Scheduling) and FAQ.
Create an NBOME account and accept the terms and conditions.
Your COM (Levels 1 and 2-CE) or residency program director (Level 3) must make you eligible before you can register.
Register and pay the fee in the NBOME Portal: $745 for Level 1 or 2-CE, $950 for Level 3.
Book your date, ideally 120+ days ahead. Level 1 and 2-CE can't be booked less than 5 days before the exam; Level 3 has registration deadlines per testing window.
Rescheduling and cancellation fees
| When | Level 1 or 2-CE | Level 3 |
|---|---|---|
| More than 30 days before | No fee; full refund if canceling | No fee; full refund if canceling |
| 6 to 30 days before | $85 | $170 |
| 1 to 5 days before | $250 | $350 |
| Within 24 hours (no-show) | $400 | $500 |
From NBOME’s Registration & Scheduling page. Amounts are forfeited from the registration fee.
If circumstances beyond your control force a change, you can ask the NBOME to waive the fee within 30 days using its fee waiver form.
Test accommodations
- Apply after your first year of medical school, even before your COM makes you eligible for Level 1.
- Allow about 75 days for a decision on a complete application.
- Don’t schedule an accommodated exam until approval arrives; you can book a standard exam in the meantime.
Common questions about how to register for COMLEX
Who makes me eligible for COMLEX?
Your college of osteopathic medicine makes you eligible for Levels 1 and 2-CE; your residency program director does so for Level 3.
How much does it cost to register for COMLEX?
$745 each for Level 1 and Level 2-CE and $950 for Level 3, frozen through the 2027-28 cycles.
How far ahead should I book?
The NBOME advises booking at least 120 days before the date you want, because seats are limited; dates open about six months ahead.
Can I reschedule?
Yes, but fees rise closer to the date: $85 at 6 to 30 days for Level 1 or 2-CE, up to $400 within 24 hours ($170 to $500 for Level 3).