You may not e-file an additional return once the IRS has processed and accepted the return- even if you are trying to correct it.  If you need to make a change to your already accepted federal return you must file an amended return using the Form 1040X.  This form must be mailed to the IRS.  It cannot be filed electronically.

Prepare your 1040X directly through your TaxSlayer account:

If your return was accepted through your TaxSlayer account and you need to prepare an amended return to correct it, you can do so directly through your account. 

To begin preparing your 1040X after your return has been accepted, login to your account and click Access Return next to 2009 Tax Year and then Edit Return.  You can "Close" the Quick Start Help Menu" to gain access to the Main Menu.  From the Main Menu, select "File an Amended Return".  The fee to prepare the amended return with TaxSlayer is $19.95.  TaxSlayer will then walk you through preparing your amended return with a detail list of instructions.  Once you get done making your changes, you will need to print it and mail it to the IRS.  Mailing addresses can be found by clicking here.

How else can I prepare an amended return?

This form is available at the IRS web site at the link listed below. The IRS does not accept the amended return electronically. This type of return must be mailed to the IRS service center that services your area.

To access the actual Form 1040X, click here.

To access the Instructions for Form 1040X, click here.