Complete your amended return as if you are filing the return for the first time. Submit all the forms relevant to the information in your amended return.To file an amended return, complete all six pages of. Visit the TCAD Forms Database to locate the form you need, fill it out, and submit it to their office. A complete list of forms can be found at the bottom of this page. Please read the instructions below to ensure that you select the correct form. You're required to fix or correct (amend) your Virginia return to reflect the changes on your federal return within one year of the final determination date. Affidavit of Motor Vehicle Gift Transfer. An alphabetical-by-topic list is provided below containing information and downloadable PDF forms, when available, or links to external resources. Many forms in Texas are not available in a fill-in-the-blank format.