First, you'll need to download a copy of your 2014 tax return. Assuming that you used the online program, instructions for accessing the PDF copy are below:
https://ttlc.intuit.com/replies/3301525
From there, you'll look for the final page of your tax return. This will vary depending on which 1040 form (1040A, 1040EZ, 1040) you filed. The signature page is the page that you would have signed if you didn't sign it electronically for e-filing. Sometimes, these requests only require that you print a copy of your signature page, sign and date it for the date that you e-filed the return. If you need a copy of the electronic postmark page (to prove when you actually e-filed your return), you should find it in the PDF file of your return. Open the PDF and scroll through the pages until you see the Electronic Postmark page. You can then select to print only that form if that's all you need.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
