To close your account visit the account locker where you will need to provide your username and password. Once you lock your account, it cannot be unlocked and it will be deleted automatically with all its data.
URLS:
http://lavabit.com
https://lavabit.com/apps/locker
Please note that AccountKiller.com is not associated with the business listed on this page. AccountKiller provides easy-to-understand instructions and guides on how to cancel charges and relationships from the list of businesses on our site, we have no affiliation with these businesses.