US Math Olympiad AMC 12B Exam 2025 (bookmark this page and check back for update)

REGISTRATION FOR AMC 12B 2025 is OPEN.


  • Time: Nov. 13th (Thu), 2025 3:00pm EST (tentative), please get to the exam location 10 minutes earlier to allow for some time to settle down.

US Math Olympiad AMC 12B Exam 2025 Logistics

  • AMC 12B Early Bird Registration Deadline: Sept 25, 2025
  • Registration fee: $73.00 to payment@njsci.org (zelle or paypal friend and family) or Fei-Liu-NJ (venmo) and use the form below to register for AMC 12B exam. Late registration (after Sep 25, 2025) fee is $123.00.
  • There is no refund once your exam is purchased from MAA or for late registration.



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  • Email: Fei.Liu@njsci.org