To get an Avis Wizard number, the simplest way is to enroll in the Avis Preferred loyalty program on the official Avis website. Enrollment is free and generates a Wizard number immediately, which acts as your unique customer ID to store your driver's license, credit card, and rental preferences. If you have already created a profile but forgot your number, you can retrieve it by going to the "Forgot Wizard Number" page on the Avis site; you will typically need to provide your last name and either the email address or the credit card number associated with the account. In 2026, having this number is a high-value "pro-tip" for travelers, as it allows you to bypass the rental counter at most major airports and go straight to your car, saving significant time during a busy trip and ensuring your preferred car class and insurance options are pre-selected.