@CGK3 you could try printing out and then signing and dating your return. use the date that Turbotax shows. if the FI doesn't accept this your only option is to find another FI and hand them a signed copy of the return. (don't mention it was e-filed unless they ask - don't lie). This is not the only FI that has no clue how e-filing works for self-prepared returns. The electronic postmark is all there is. Another option that an FI might accept is a transcript of the return which you can get through the IRS website but you have to register if you want to download a printable copy or file form 4506-T to get a transcript in the mail or call the number listed on the website
https://www.irs.gov/individuals/get-transcript
