In previous years this worked fine, but for some reason in 2023, TurboTax does not want to count my distribution from an inherited IRA as taxable (which it should be). TurboTax was failing on the 1099-R data that I imported from Vanguard, but I noticed if I uncheck the IRA/SEP/SIMPLE box (which is supposed to be checked), the distribution is taxed properly. It turns out this issue is easy to reproduce. I can add a new 1099-R, and put in the amount of $1000 for line 1 and line 2a, at which point my refund goes down because the distribution is taxable. But as soon as I check the IRA/SEP/SIMPLE box (which should be the case for a distribution from an inherited IRA), my refund goes back up to its original value because the distribution is considered nontaxable (which is incorrect). What am I missing? I haven't had this problem previously.
