<prompt> Human: I received my tax return today with a form 3531 stating I needed to sign my tax return. Yeah, I know. Im an idiot. To be fair I had a lot going on at the time and it completely slipped my mind. It was definitely received the first time before the deadline and was red stamped for correction on May 4. Should I just send this form in again with the form 3531 with my signature on it? Or should I also file for an extension with this tax return?  <response>: This happened to me last year. Sign the form and mail it in. Since they have your tax return dated before the cutoff, you dont need the extension. 