If the IRS determined that you qualify, than you could file a paper amended return. Read the IRS notice carefully to make sure that what they are saying is accurate and correct to your situation. You should be able to find out if you qualify by following the steps shown in your IRS notice. You can find your notice number in the top right corner of your notice.
Click on this link to find your notice number for some additional instructions: IRS Notices EITC
You likely got a Notice CP08, CP09 or CP27. Click on the Notice number that you got and it tells you what you need to do. You may not have to amend. It looks like you may be able to fill out a worksheet and send it to the IRS. Read your notice carefully and refer to the link above.
If you need to amend by mail:
Form 1040-X is here.
Instructions for Form 1040-X are here.
Click here for "File an amended return"
Click here for "About Form 1040-X, Amended U.S. Individual Income Tax Return"
Click here for "How to Correct Federal Tax Returns"
Please come back to TurboTax Community with any additional information or questions you may have and we will be glad to help you.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"