A 1099-int that I received lists the payers SSN in truncated form. I cannot transmi

The payers tax identification number is not required. Try leaving that field completely blank and see if you can transmit.

Tried this solution in conjunction with a live assistant via TurboTax but it did not work, the program still mandated the full SSN.  I was ultimately fortunate enough to contact the individual and they were willing to give me their full SSN.  I would otherwise have had to file the old fashioned way, via snail mail.  Glad to avoid that potential headache!