form 1040 vs 1040x
When you can file. As long as your original tax return was prepared using Forms 1040, 1040A, 1040EZ, 1040EZ-T, 1040NR or 1040NR-EZ, then you can amend it using Form 1040X.If your changes affect more than one tax return, you must file a separate Form 1040X for each tax year.he most helpful document you need when preparing Form 1040X is a copy of the original tax return youâre amending. You can transfer some of the original information onto the amended tax return such as Social Security numbers, your filing status and gross income.