Steps to Delete Yahoo! ID/Account Permanently
- First you will have to visit the Account Termination Page
- Type your ID and Password under please confirm your Indentity
- Click On Terminate this Account
Play the waiting game.wait for 90 days for yahoo to delete your data.
Ex.The Emails related to your ID.But The data connected to Yahoo! Finance will be still there with Yahoo!for a period of 3 calender years
This is the actual link (https://edit.yahoo.com/config/delete_user)