When you file your return electronically the IRS requires that you enter a current-year PIN (Personal Identification Number) and either your Prior Year AGI or your Prior Year PIN for verification. 

If you did not file a federal tax return last year, you do not have a prior year PIN to use.  In this case, you must make an entry for "Prior Year AGI".  Since you didn't file last year, the IRS does not have a prior year AGI on file for you. Simply enter "0" for your "Prior Year AGI"  and leave your "Prior Year PIN" blank.

Note: Within the e-file process, if you select "No" that you did not file a return in the prior year, the TaxSlayer program will automatically populate a "0" for you.  You will then have to only create your 5-digit current-year PIN.