<prompt> Human: In 2016, I filed my first tax return and received a refund of 239. My W-2 Income was 3,701.77, which was included on my tax return. I sold my short-term stocks and gained 1,073.34, but did not report this on my Tax Return Form. I used TurboTax to file the return and TD Ameritrade for stock trading. Since this is a huge amount of additional income, should I amend my 2016 Tax Return to avoid any further penalties from IRS?  <response>: While you wont owe any extra, I would go ahead and file the amendment just to correct the record. 