Sign in to Apple Account at https://account.apple.com/
Go to the Data and Privacy page
Select Request to delete your account
Follow the on-screen steps
Choose a reason for the request
Review the terms and conditions
Confirm the deletion request
Save the access code provided by Apple
Wait for Apple to process the request
Sign out of all Apple devices and services
Cancel any active subscriptions before deleting the account
Back up any important data before proceeding