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NBME 26 Step 1 Practice Exam

NBME 26 is an official Step 1 practice exam. NBME sells it online through its examinee portal.

Updated Oct 25, 2026. Edited by: Ilyass Ben Hakim.

Where to buy

Create a MyNBME account. Then buy the CBSSA form you want. Your school may provide vouchers.

Professional insight

Step 1 tutors schedule NBME 26 as an early baseline. Newer forms are saved for the final weeks.

Take it timed, in one sitting, like test day.
Score reports estimate your chance of passing Step 1.
Standard pacing gives 1 hour 15 minutes per section.
Bundles of three forms sometimes go on sale.

Check the label

Product named Comprehensive Basic Science Self-Assessment, CBSSA.
Form number 26 shown before checkout.
Seller is NBME or the MyNBME portal.
Pacing option, standard or self paced.
Access window stated after purchase.
Score report type included.

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NBME 26 at a glance

Exam: USMLE Step 1 practice
Format: 4 sections of 50 questions
Released: 2021; Launched with forms 25 to 30.

Red flags

PDFs or screenshots of NBME 26 sold online.
Answer keys offered by private sellers.
Shared login accounts for sale.
Any seller other than NBME or your school.

Tips

Use the same start time as your real exam.
Review every missed question within two days.
Track weak systems, not just the total score.
Space later forms about a week apart.

Common questions

Is NBME 26 still available?: It was listed with forms 26 to 31 in 2025. Check MyNBME for the current list.
Can I retake NBME 26?: Each purchase covers one attempt. Retakes repeat the same questions.
Is NBME 26 on Amazon?: No. NBME sells it only through its own portal.