I want to delete my account as I did not use it for the intended purpose and I do not plan to use it in the future.

[hndreca17]

How can I do that?

[mesquitebean]

If you haven't paid or registered, you can use "Clear and start over" to erase a return.   After clearing, just don't start over.   To deactivate the account, however, you'd need to phone TurboTax Support.

FAQ:  How do I clear and start over in TurboTax Online?
https://ttlc.intuit.com/questions/2586254-how-do-i-clear-and-start-over-in-turbotax-online

Here's how to contact TurboTax Support to begin an account deactivation process.

FAQ:  What is the TurboTax phone number?

https://ttlc.intuit.com/replies/3300041