The following comments apply to Turbo Tax Premiere 2020 which was downloaded to my laptop. There is an error in the software in that it does not correctly calculate the dollar amount that should be in line 18 of Form 1116. According to both turbo tax help information and the instructions for Form 1116 from the IRS the number in Form 1116 Line 18 is from Line 15 of Form 1040 and adjusted by using the Form 1116 line 18 worksheet if the filer used the Qualified Dividends and Capital Gain Tax Worksheet. Turbo tax does not make this adjustment and that results in Form 1116 Line 18 being overstated which then understates the Tax Credit the filer is allowed and raises the tax due. This is not a question of interpretation of tax law but a failure in the software to do the math to adjust the number. Please fix right away and make sure that current users are aware of the error. You are directly costing some of your customers money.
