Can't delete a Qualified Business Expense dedcution.

Please provide clarification:

What version of TurboTax are you using?  You appear to be using TurboTax Premier Online.

What section of TurboTax are you working in, and what is the screen title?

Are you in the federal or state section of TurboTax?  If state, what state?

Are you entering a specific form? 

If you’re referring to Self-Employment Expenses in TurboTax Online, you should step back through the interview:

1. If you’re on the Hi TurboTax Client, let's keep working on your taxes! screen, click the Pick up where you left off button

2. Click Federal in the left pane, if you’re not already there

3. Click Income & Expenses in the banner

4. Click Show more to the right of Self-Employment

5. Click Start to the right of Self-employment income and expenses

6. Click Yes on the Did you have any self-employment income or expenses? page

7. Continue through the screens until you reach expenses again

Enter all of your relevant information.