You will need to file an amended tax return. This can be a lot of paperwork, but it's easy enough if you take it step-by-step.---------------------------------------------------------------------------------------------------------------------------------------------------------------------
First, you need to prepare a new Form 1040. (Regardless of which tax form you originally used, such as 1040EZ or 1040A.) The new Form 1040 needs to report **ALL** your income and deductions correctly. And the income needs to be your entire total -- all W2s from all jobs.--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
This new, corrected, and complete Form 1040 then is compared to your original return. The differences between the two (original and corrected) are reported on Form 1040X. Finally, the the additional tax or refund is reported, and you either mail in a check or wait from an extra refund check.---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Amendments take extra long to process, and they CANNOT be e-filed. You will need to mail it in. And wait 3-4 months for your extra refund check.
PLEASE make a photocopy of all tax returns BEFORE mailing them in
