I made non-deductible contributions to a new Traditional IRA account in 2017, but did not realize I had to submit a form 8606. I am filling out the 2017 form 8606 to file now (late). Should I check the box that says 'If this is amended return, check here'? Should I include any other forms with the 2017 8606 or can it be sent by itself? Do I include the penalty payment (check) with the form?
