https://ttlc.intuit.com/community/taxes/discussion/re-form-8453/01/1588051#M989335 <P>No, you do not need to include Form 8453 with a return you are mailing in.&nbsp; Just include the 8949 and supporting documents.</P> Thu, 14 May 2020 18:09:28 GMT RobertG 2020-05-14T18:09:28Z https://ttlc.intuit.com/community/taxes/discussion/form-8453/01/1582533#M989334 <P>I am MAILING &nbsp;in his 1040. &nbsp;I have &nbsp;form 8949, and all the supporting documents. &nbsp;Turbo tax is telling me I have to include for 8453 as well. &nbsp;But 8453 says it is for an e-file which I am not doing. Do I need to mail in form 8453 even though I have form 8949 and the supporting documents?</P> Tue, 12 May 2020 00:00:37 GMT https://ttlc.intuit.com/community/taxes/discussion/form-8453/01/1582533#M989334 Dgiese1 2020-05-12T00:00:37Z https://ttlc.intuit.com/community/taxes/discussion/re-form-8453/01/1588051#M989335 <P>No, you do not need to include Form 8453 with a return you are mailing in.&nbsp; Just include the 8949 and supporting documents.</P> Thu, 14 May 2020 18:09:28 GMT https://ttlc.intuit.com/community/taxes/discussion/re-form-8453/01/1588051#M989335 RobertG 2020-05-14T18:09:28Z