Yes, there is. If you have one of the desktop versions of the product, you can use the steps here to help you find that What-If Worksheet. You can do 3 scenarios on that worksheet.
NOTE: The TurboTax Online version does not have the What-If feature
For Windows Users:
- Click the Forms button in the top right corner
- Then choose Open Forms at the top of the list of forms to the left
- Type in What-If Worksheet, select that in the list and click Open
For Mac Users:
- Click the Forms button in the top left corner
- Then choose Open Forms at the top center of the page
- Type in What-If Worksheet, select that in the list and click Open
