obvious errors on TurboTax worksheet 8829 itself, and they won't do anything to fix it.

[AlyMatt4]

I found the error on worksheet 8829. the problem with the working sheet line5, it should add line 1 and line4, not line 3 and line4. The description is the gross income from Schedule C, it should be line1, not the percent income on line 3. So the final number they have on worksheet line 9, is not the correct number showing on Schedule C line 29.  I talked with the Agent, they won't do anything to correct the mistake. With this obvious mistake, they won't do anything, it is really frustrating. How can we report the error?

[AnnetteB6]

No, adding lines 3 and 4 is correct.  

The percent of business use of the home office is missing from the calculation and therefore the result is that the calculation shows a loss for your business.

When you go through the Federal Review of your return, this error will be flagged and you can enter the amount on that review screen.  The amount to enter is the percentage of time that you spend in your home office making money for your business.  If all of your time is spent working in your home office for your business, then enter 100%.

You can also make the correction to the calculation using Forms Mode.  Use these steps:

• Click Forms on the top row of TurboTax.
• Go to Form 8829.
• Scroll to the section titled Line 8 Calculation Smart Worksheet and enter your percent of business use of the home office on line B.
• Click Step-by-Step at the top of the screen to go back to the input screens.