Step 1
Sign up for a personal IOIS account by clicking on the purple "Create Account" button. You can skip step one if you already have an account.
Step 2
Log into your IOIS account.
Step 3
Go to "My Account" and select "My Payments" in the dropdown menu
OR click here
Step 4
Click on the purple button "REGISTER for IOIS 2021 Congress" and follow the instructions. If you are a IOIS 2021 member, your FREE registration is automatically indicated. If you are a non-member follow the instructions for payment.