Philipp2021, are you saying that you were able to efile while claiming the QBI and stating a safe harbor, but just mailed in the safe harbor statements? Did you have to uncheck the safe harbor box QBI document in order for TT to allow the efiling?
Tax Slayer allows you to print, sign then upload the safe harbor statement. 20+ years using turbotax and this has now got me to go!
https://support.taxslayerpro.com/hc/en-us/articles/[phone number removed]-QBID-Rental-Property-and-E...
