Two weeks ago I received the rejection from the IRS for Form 8615 Box 7 error. I have waited until today to refile. Every time I would try to revisit the form on TurboTax, nothing changed. I took the forms from the IRS website and calculated everything by hand, getting the same answer as TurboTax. Today I decided to delete the 1099 Income information regarding the stock sales and then re-enter it in TurboTax. This 1099 stock sale info is what generated the Form 8615 in the first place. The same exact figures appeared on the tax forms with the same amount of tax due. I refiled the return with the IRS, and the IRS has accepted it. I had previously input the 1099 stock info before TurboTax did an update on 3/19/20 to Form 8615. Hope this helps someone else.
