The Tax Calculator* provides the ability to perform What-If scenarios in your current year's TaxAct® return for the current or future years. You can project your earnings and expenses into the following years and then make estimated changes to the information to determine your tax liability for the current or upcoming years based on those changes.
From the TaxAct website, click Tax Info in the top center of the screen. On the website Tax Information for When You Need It Most, click the link Tax Tools & Calculators. From there click the link Tax Calculator and proceed through the screens to enter the information. On the final screen, titled Your 2019 Tax Calculation, you will be able to view a summary of the results based on your entries. From there you can also click the green link titled Start your return for Free! to start a return using the TaxAct program.