What's an e-filing PIN?
An e-filing PIN is one of two ways to verify your identity when e-filing your federal return. The other verification method uses last year's adjusted gross income (AGI).
If you received a 5-digit PIN from the IRS prior to June 23, you can still use it. Otherwise, verify your identity with your 2014 AGI (and if you didn't file a return in 2014, enter a 0 for your AGI).