If you have TurboTax CD (not Online), you're allowed to file more than one return. So this answer is very unsatisfactory. Please advise how to start a second re...
I had the same issue, on a Mac. TurboTax was updated already, but it kept telling me to update and giving me the "validation failed" message. What worked for me...
H&R Block said in 2016 that TSA Pre was deductible in some cases. So why not Global Entry, which is just an expanded version of TSA Pre? Have the rules changed ...