You can turn off the automatic renewal until 30 days prior to your renewal date for yearly and 3-year subscriptions (and 14 days for monthly subscriptions) by logging into your customer portal > My products > Active Products
Navigate to the subscription you wish to amend and Disable the automatic renewal:
You can enable the auto-renewal again until the renewal date is reached. Please note that it is not possible to reactivate your license once the end date has passed.