I filed a 1040ez in 2016 and forgot to report stock sales. The IRS sent a bill for the unreported income. I need to amend my 1040ez to include the sales of stock as the IRS bill has billed me more then due.
1. Can I amend a 1040ez and add a schedule D? I guessing not.
2. If I can not do that what should I do? How would a refile my taxes for that year?