How to cancel a registration

Click "My Registrations" in the navigation bar on the left. Click your current year registration. Click Payment and Invoice. You should see a Cancel button. If you are before the Cancellation Deadline, you will get a full refund issued to your credit card. The refund can take 10 business days to post to your account. If you are after the Cancellation Deadline, you cannot get a refund.

Cancellation Policy

https://2017.icml.cc/Help/CancellationPolicy