AMC Age Limit 2026-27: Who Can Take AMC 8, AMC 10 and AMC 12?

The AMC age limit is one of the most important eligibility rules to understand before you register for any AMC competition.

The short answer: AMC 8 is for grade 8 or below and under 15.5, AMC 10 is for grade 10 or below and under 17.5, and AMC 12 is for grade 12 or below and under 19.5. Age is measured on the day of the contest, and both the grade rule and the age rule must be met.

This guide covers the age limit and eligibility rules for all three AMC competitions, so you know exactly which exam you qualify for, what happens when you are on the boundary, and what comes next after you compete.

AMC Age Limit: Quick Reference Table

Exam	Grade Limit	Age Limit on Contest Day	Format	Max Attempts Per Year
AMC 8	Grade 8 or below	Under 15.5 years old	25 questions, 40 minutes	1
AMC 10	Grade 10 or below	Under 17.5 years old	25 questions, 75 minutes	2 (AMC 10A + 10B)
AMC 12	Grade 12 or below	Under 19.5 years old	25 questions, 75 minutes	2 (AMC 12A + 12B)
AIME	By invitation	At least 13 years old from 2027	15 questions	1

The key rule across all AMC exams: both conditions must be met, grade level AND age limit. Meeting one but not the other means you are ineligible for that exam.

There is no minimum age or minimum grade for any AMC exam. A capable 5th grader can sit the AMC 8, and a 7th grader can sit the AMC 10. The limits are ceilings, not windows.

Check Your Own Case: Age and Grade Examples

Most people arrive here with a specific situation rather than a general question. Here are the common ones.

Your situation	What you can take
Grade 9, age 14	AMC 10 or AMC 12. The AMC 8 is closed to you on grade.
Grade 10, age 16	AMC 10 and AMC 12, on different dates.
Grade 10, age 17 years 7 months on contest day	AMC 12 only. You are past 17.5, so the AMC 10 is closed.
Grade 11, any age under 19.5	AMC 12 only. Grade 11 exceeds the AMC 10 ceiling.
Grade 8, age 13	AMC 8, and the AMC 10 as well if you want the stretch.
Grade 6, age 11	AMC 8. The AMC 10 is allowed but usually early.
Grade 8, age 15 years 8 months	AMC 10 only. You are past 15.5, so the AMC 8 is closed.
Grade 12, age 19 years 7 months	None. Past 19.5 means no AMC level is open.
Qualified for AIME but turning 13 after the AIME date	You keep the AMC award, but cannot sit the 2027 AIME.

If your birthday falls close to a cutoff, work it out against the exact contest date rather than the school year. The AMC test dates page has every date for this cycle.

AMC 8 Age Limit and Eligibility

The AMC 8 is designed for middle school students and is the entry-level competition in the AMC series.

• Grade requirement: Grade 8 or below
• Age requirement: Under 15.5 years old on contest day
• Format: 25 questions, 40 minutes, no calculator
• Scoring: 1 point per correct answer, no penalty for wrong answers or blanks

The AMC 8 does not directly qualify students for the AIME. Its primary purpose is to build problem-solving foundations and introduce younger students to competition mathematics.

However, strong performance on the AMC 8 is excellent preparation for the AMC 10 in subsequent years. For the step up, see AMC 8 vs AMC 10, and for students preparing to move up, understanding what type of questions are asked in math olympiads gives a useful preview of AMC 10 and 12 problems.

Is the AMC 8 Age Limit 14.5 or 15.5?

You will see both numbers online, and the difference matters if your child is on the boundary. The MAA’s own policy and Teacher’s Manual state under 15.5 years on competition day, alongside the grade 8 ceiling. The 14.5 figure circulates widely on prep sites and reference pages but does not match the MAA’s current wording.

If your child’s birthday puts them between 14.5 and 15.5 on the contest date, confirm directly with your competition manager before registering. They are the one submitting the roster, and they can check the current manual.

AMC 10 Age Limit and Eligibility

The AMC 10 is the most commonly asked-about exam when it comes to age eligibility.

• Grade requirement: Grade 10 or below
• Age requirement: Under 17.5 years old on contest day
• Format: 25 questions, 75 minutes, no calculator
• Scoring: 6 points correct, 1.5 points blank, 0 points wrong
• Maximum score: 150

The 17.5 Age Rule: What It Means in Practice

The 17.5 age cutoff is calculated based on your age on the specific day of the contest, not your age at the start of the school year. If you are 17.5 years old or older on contest day, you are ineligible for the AMC 10 regardless of your grade level.

How to work it out: add 17 years and 6 months to your date of birth. If that date falls on or before the contest date, you are out.

Worked example. A student born on 15 May 2009 reaches 17.5 on 15 November 2026. The AMC 10A is on 5 November 2026, so they are eligible for the A paper. The AMC 10B is on 13 November 2026, which is still two days inside the limit, so they are eligible for that too. A student born two weeks earlier, on 1 May 2009, reaches 17.5 on 1 November and is eligible for neither.

What If You Are in 10th Grade but Over 17.5?

You cannot take the AMC 10. You must register for the AMC 12 instead. Grade level alone does not determine eligibility, and the age limit is a hard cutoff with no exceptions, appeals or waivers.

Can You Take Both AMC 10A and AMC 10B?

Yes. The AMC 10 is offered twice each year, the 10A and the 10B on different dates. Eligible students can participate in both.

Many students use the first sitting as a practice run and aim for their best score on the second sitting. Your best result from either sitting counts toward AIME qualification.

For a full breakdown of how registration works for both sittings, see how to register for AMC math competitions.

AMC 12 Age Limit and Eligibility

The AMC 12 covers a broader and more advanced curriculum than the AMC 10 and is designed for older high school students.

• Grade requirement: Grade 12 or below
• Age requirement: Under 19.5 years old on contest day
• Format: 25 questions, 75 minutes, no calculator
• Scoring: Same as AMC 10, 6 correct, 1.5 blank, 0 wrong
• Maximum score: 150

The AMC 12 tests additional topics not found on the AMC 10, including trigonometry, advanced algebra, and precalculus-level content.

For the full AMC syllabus breakdown across all levels, that post covers what each exam tests in detail, and AMC 10 vs AMC 12 compares the two directly.

Can You Take Both AMC 10 and AMC 12 in the Same Year?

Yes, if you are eligible for both. A student in 10th grade who is under 17.5 can sit for AMC 10A and AMC 12B (or AMC 10B and AMC 12A) in the same academic year, since the A and B sittings are on different dates.

You cannot take AMC 10A and AMC 12A on the same date.

Many 10th graders who are eligible for AMC 10 choose to also attempt the AMC 12 for additional practice and to assess their readiness for the following year.

AMC Time Limits and Format by Level

Eligibility and format get asked together, so here is the whole picture in one place.

Exam	Questions	Time limit	Per question	Calculator	Max score
AMC 8	25	40 minutes	1.6 minutes	Not allowed	25
AMC 10	25	75 minutes	3 minutes	Not allowed	150
AMC 12	25	75 minutes	3 minutes	Not allowed	150
AIME	15	Two 90-minute parts	12 minutes	Not allowed	15

The AMC 8 time limit of 40 minutes for 25 questions is tighter per question than the AMC 10 and AMC 12, which is why pacing catches out strong middle schoolers more often than difficulty does.

Why Does the AMC Have Age Limits?

The age limits exist for two interconnected reasons: fairness and pathway integrity.

Fairness

A 17-year-old in 10th grade who has had two additional years of mathematical exposure compared to a typical 15-year-old 10th grader has a structural advantage in problem-solving depth.

The age cap ensures that students compete against peers at a genuinely similar stage of development, not just the same grade level. It also closes an obvious loophole: without it, a student could repeat a grade and keep competing against younger peers.

Pathway Integrity

The AMC competition structure is designed as a deliberate progression:

• AMC 10 to AIME to USAJMO (for younger students, typically grades 9 to 10)
• AMC 12 to AIME to USAMO (for older students, typically grades 11 to 12)

Separating these pathways means younger students qualify for USAJMO rather than competing directly against older students for USAMO spots.

This gives high-achieving younger students a meaningful, age-appropriate milestone to work toward. For a full picture of where this pathway leads, see how to qualify for the IMO in the USA.

AIME Age Limit: New Minimum Age of 13 from 2027

From 2027, students must be at least 13 years old to take the AIME, even if they qualify through the AMC 10 or AMC 12. This is a new rule that came with the move to Pearson testing centers.

• A younger student can still take the AMC 10 or AMC 12 and earn its awards.
• If a student under 13 scores 100 on the AMC 10 or 85 on the AMC 12, they cannot sit the 2027 AIME, and there is no alternative exam for them this year.
• The AMC 8 has no minimum age, so younger students can keep building experience there.

This is the first time the AMC pathway has had a floor rather than only a ceiling, and it affects a genuinely small group: the handful of students who clear an AIME qualifying score before their 13th birthday. If that is your child, the practical answer is to keep sitting the AMC and target the following year’s AIME. The AMC awards they earn on the AMC 10 or 12 are unaffected.

Is There a Minimum Age for the AMC?

No. The AMC 8, AMC 10 and AMC 12 have no minimum age and no minimum grade. The only floor anywhere in the pathway is the AIME’s age-13 rule from 2027.

How Age Eligibility Affects AIME Qualification

Understanding which exam you take based on age has a direct impact on your qualification pathway.

AMC 10 to AIME to USAJMO

Students who qualify for the AIME through the AMC 10 are eligible for the USAJMO (USA Junior Mathematical Olympiad), the pathway for younger competitors.

• AIME qualifying score on the AMC 10: 94.5 to 105 points before 2026-27, now fixed at 100

AMC 12 to AIME to USAMO

Students who qualify through the AMC 12 are eligible for the USAMO (USA Mathematical Olympiad), the senior and more competitive pathway.

• AIME qualifying score on the AMC 12: 76.5 to 100.5 points before 2026-27, now fixed at 85

From 2027, USAJMO and USAMO invitations rest primarily on the AIME score rather than a combined AMC and AIME index. A student who takes both AMC 10 and AMC 12 in the same year can qualify through either route, but qualifying through the AMC 12 directs them toward USAMO rather than USAJMO even if they are young enough for USAJMO.

For context on what a competitive score looks like for each path, see what is a good AMC math competition score and the average AMC math scores by level.

When Should a Student Start Preparing for the AMC 8?

Most students start preparing in grade 5 or 6, around ages 10 to 12, roughly a year before their first sitting. There is no minimum age, so a confident younger student can sit it earlier purely for the experience.

A reasonable progression:

1. Grades 4 to 5: build arithmetic fluency and try untimed competition-style problems. No score pressure.
2. Grade 5 or 6: first AMC 8 sitting. The Achievement Roll at 15 points is the natural first target for grade 6 and below.
3. Grades 7 to 8: aim for the Honor Roll, which needed 21 in 2026, and start sitting timed past papers.
4. Grade 8 or 9: step up to the AMC 10 while still sitting the AMC 8 if eligible.

Starting earlier is not automatically better. A student pushed onto a paper they find demoralising often disengages, and the AMC 8 is specifically designed to be enjoyable rather than high-stakes. Start with untimed problems and move to timed papers only when the problems themselves feel manageable.

AMC 10 vs AMC 12: Which Should You Take?

If you are eligible for both AMC 10 and AMC 12, here is how to decide:

Factor	Choose AMC 10	Choose AMC 12
Grade	Grade 9 or 10	Grade 11 or 12
Content comfort	Algebra, geometry, basic number theory	Plus trigonometry, precalculus, advanced algebra
Competition pathway goal	USAJMO	USAMO
AIME qualifying score	100 out of 150	85 out of 150
Trade-off	Higher score needed, easier material	Lower score needed, harder material
Both eligible?	Take AMC 10 as primary	Use AMC 12 as a stretch attempt

Most students in grades 9 to 10 who are eligible for both should take the AMC 10 as their primary exam and consider attempting AMC 12 on a separate date for practice and benchmarking.

For students who want to understand what the benefits of the AMC competition are beyond just rankings, that post covers the college application, cognitive, and academic development advantages.

How to Prepare Once You Know Your Eligibility

Once you have confirmed you are eligible for AMC 10 or AMC 12, preparation is the next step.

Know the Exam Format Cold

AMC 10 and 12 share the same structure: 25 questions, 75 minutes, 6/1.5/0 scoring. Understanding the scoring strategy is the single easiest way to improve your score without additional content knowledge. Never guess randomly, because a wrong answer is worth 0 while a blank is worth 1.5. Three well-chosen blanks are worth 4.5 points.

Build Topic Fluency by Exam Level

The AMC 10 focuses on algebra, geometry, combinatorics, number theory, and probability within a precalculus boundary. The AMC 12 adds trigonometry, sequences and series, logarithms and more advanced algebraic topics.

Use Past Papers With Real Timing

Practicing under actual timed conditions, 75 minutes with no calculator, is non-negotiable. Reviewing every wrong answer in detail is more valuable than attempting more papers without reflection. Start with AMC past papers and the level-specific sets in our AMC 8 practice test, AMC 10 practice test and AMC 12 practice test guides, plus the roundup of free AMC practice resources.

Aim Above the AIME Qualifying Score

If AIME qualification is your goal, aim 10 to 15 points above the line so a single careless error does not cost you the invitation. On the AMC 10 that means targeting 110 to 115, and on the AMC 12, 95 to 100. For full preparation guidance, see how to prepare for an AMC math competition, and once you are near the line, work through real AIME problems.

Key Takeaways

• AMC 8: grade 8 or below and under 15.5 on contest day. AMC 10: grade 10 or below and under 17.5. AMC 12: grade 12 or below and under 19.5.
• Both conditions apply. Meeting the grade rule but not the age rule makes you ineligible, and there are no exceptions.
• Age is measured against the contest date, not the start of the school year, so a birthday between the A and B sittings can change your eligibility mid-cycle.
• There is no minimum age or grade for any AMC exam. The only floor is the AIME’s age-13 rule from 2027.
• All three exams are 25 questions: 40 minutes for the AMC 8, 75 minutes for the AMC 10 and AMC 12.
• AIME qualifying scores are now fixed at 100 on the AMC 10 and 85 on the AMC 12.

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