Open the Snapchat app or go to the Snapchat Accounts Portal
Sign in to the account you want to delete
Go to the Delete Account page
Enter your username and password if prompted
Confirm that you want to delete the account
The account will be deactivated for 30 days
Do not log in during the 30-day deactivation period if you want it permanently deleted
After 30 days, the account will be permanently deleted