UPDATED FOR TAX YEAR 2019

The desktop version of TurboTax offers a What-If Worksheet.  It's probably easiest to enter the information on both you and your husband in the return first.  Then open the What-If worksheet and delete his information in the next column to get a side-by-side comparison.

You will get error messages if you try to enter your W-2s, etc. as spouse when there is no taxpayer.  To open the What-If worksheet, please follow these steps:

1. When you are in your return, click on Forms in the upper right of the screen. 
2. When in Forms mode, click on Open Form in the upper left of the screen. 
   
3. Type in what-if and double-click on the result to open the worksheet.  With the What-If Worksheet open you can use the 2019 tax rates or check the box(es) shown to use the 2020 tax rates for each scenario you will be running.  [See screenshot below.]

[Edited | 3/19/2020 |  1:10 pm PDT]