Verified answer

To close or delete your Yahoo! account:

1. Visit the Account Termination page. ← on help page link below

2. For enhanced security, enter the Yahoo! ID and password for the account you are deleting.

- If you have forgotten your password, please use our Yahoo! Password Helper.

3. Read the important information facts in the Account Termination page.

4. Confirm your password in the field provided and enter the CAPTCHA code.

5. Select the Terminate this Account button.

This will terminate ALL Yahoo! Product accounts, not just email.

Read the help page carefully before you procede.

Log in to the account you want to delete then.

Go below, follow the prompts. Click edit email information, delete the account and save.

https://login.yahoo.com/config/login_verify2?.slog...

You can also check the link below:

http://help.yahoo.com/l/us/yahoo/edit/changing_use...

Go to https://edit.yahoo.com/config/delete_user and click the terminate button...