Using the TurboTax desktop editions you can use the What-If worksheet in Forms mode.
With the desktop program opened click on Forms in the upper right of the program screen. When in Forms mode click on Open Form in the upper left of the screen. Type in what-if and click on the result to open the worksheet.
Or you can use the TurboTax calculator Taxcaster to get an estimate of a refund or taxes owed - https://turbotax.intuit.com/tax-tools/calculators/taxcaster/
Using the TurboTax desktop editions you can use the What-If worksheet in Forms mode.
With the desktop program opened click on Forms in the upper right of the program screen. When in Forms mode click on Open Form in the upper left of the screen. Type in what-if and click on the result to open the worksheet.
Or you can use the TurboTax calculator Taxcaster to get an estimate of a refund or taxes owed - https://turbotax.intuit.com/tax-tools/calculators/taxcaster/