If you e-file for someone else, how do they sign

[rhosken]

Am preparing taxes for an elderly neighbor. How can I get their signature in order to e-file? What is the signing process or do they have to sign paper copy and mail in?

[ChrisVonHoep · Accepted solution]

1. Use a Self-Selected or Previously Issued PIN: If you've used a self-selected PIN in previous years, you can use the same PIN to file your taxes electronically for the 2017 tax year—in essence, you'll notice no difference. Or, if you've been issued an Identity Protection PIN (IP PIN), you can use that to file your taxes online.
2. Use Your 2016 Tax Return: You can also file your taxes online using your adjusted gross income (AGI) from last year's tax return to verify your identity. If you filed your taxes with TurboTax last year, you can access last year's tax filing to find your AGI. Look on:
   • Line 37 of the Form 1040
   • Line 21 on the Form 1040-A
   • Line 4 on the Form 1040-EZ