You are using a Yahoo account to use Yahoo chat and use Yahoo email service. But for some reason you want to permanently delete your Yahoo account, to create a new Yahoo account or not to use Yahoo anymore.
The following article shows how to permanently delete Yahoo accounts. You need to consider before deleting, once you delete your Yahoo account, you delete all Yahoo services.
Step 1: You access the following address http://edit.yahoo.com/config/delete_user.
Step 2: Enter your yahoo account name and password. Then click Sign In .
Step 3: The website confirms the deletion of Yahoo account, you need to see information about deleting Yahoo account. If you want to delete your account, then enter your password in the white box below the word please identify yourself with your password . Next enter the code in the image into the text box below the code string. Then click Stop using this Account .
A notice of deletion appears, so your Yahoo account has been deleted.
So with these simple steps, you quickly delete your Yahoo account permanently. Good luck!