Filing a tax return can be a complicated process, so it's easy to make mistakes that can affect the amount of tax you pay. If you make a major error like filing as a single person instead of a married person or forgetting to claim a tax break, you might want to re-file your return. The Internal Revenue Service allows you to redo a past tax return by filing an amended return, but you won't be able to e-file it.

Amended Return Processing Time

To file an amended tax return, you must fill out Form 1040X and mail it to the IRS. It is not possible to e-file an amended return, even if you filed your original tax return electronically. As a result, it can take much longer for the government to receive and process amended returns than normal tax returns. According to the IRS, it can take up to 12 weeks for it to process an amended return and issue a refund. You can check the status of an amended tax return using the "Where's My Amended Return" web tool offered by the IRS.