Eligibility
To be eligible to participate in the ILO, you must:
- Be enrolled as a Middle-School student (US grades 6-8)
- Be between the ages of 11-14 by January 1st 2027
- Be able to understand, communicate, and complete exams in English
How To Register
Registering for the International Logic Olympiad (ILO) is simple and takes 5 steps.
Step 1: Create an Account
- Create an account on our testing portal. After signing up, you'll receive an email to verify your address. Verification is required to proceed with the next steps.
- Creating an account does not automatically register you for the competition.
- Financial Aid applicants: after creating your account, do not continue to Step 2. Instead, complete the separate Financial Aid application form and follow the instructions provided there.
Step 2: Register for Your Division
- Select the correct division based on your eligibility (see above). You'll be asked to confirm your age and school grade as part of this step.
Step 3: Pick Testing Location
- Select your residence location from the provided list for the Preliminary Round Exam. After payment, this location goes through a verification process, so please choose carefully.
Step 4: Upload Identification
- Upload a valid form of identification confirming your name, birthdate, school name, and current grade. Because these details are used to verify your eligibility and testing location, incomplete or illegible documents may delay or invalidate your registration.
- Preferred: A current school ID card showing your photo, full name, birthdate, grade, and school name.
- Also accepted, if a school ID with the required details is not available:
- A letter of enrollment issued by your school (on official letterhead or with a school stamp) listing your name, birthdate, and grade
- A report card or transcript showing your name, birthdate, grade, and school name
- A national ID, passport, or birth certificate showing your name and birthdate, submitted together with a separate school enrollment document confirming your grade and school name
Step 5: Payment
- Complete your payment to finalize registration.
Important Dates
January 14th: Registration Opens
March 21st: Registration Closes
April 10th or 11th: Preliminary Round (Dependent on Regional Testing Center)
July 1st - July 3rd: Final round at Stanford University
Registration Fee
Please note that participation in the International Logic Olympiad requires a $50 registration fee.
Financial Aid
Who is Eligible?
We believe that financial limitations should not hinder anyone from participating in the ILO. Therefore, financial aid is available for students who qualify. Students whose family income is less than $20,000 annually can apply for financial aid. To apply, participants must complete a financial aid application form and provide supporting documentation, such as tax returns or pay stubs, proving the family’s financial situation. Applications for financial aid are open until February 17th, 2027 (11:59pm PST) , and decisions will be communicated to applicants by February 21st, 2027.
How to Apply
- Complete the application form↗ with your personal information and proof of income.
- All documents must be submitted before the deadline, which will be communicated on the website and through email notifications.
What Financial Aid Covers
The financial aid only applies to the $50 registration fee. Please note that it does not cover other expenses.
Applications will be reviewed, and you will be notified of the outcome before the registration deadline by February 21st, 2027. Our goal is to ensure that all eligible students have the opportunity to participate in the ILO without financial barriers.

