If your Earned Income Credit (EIC) was disallowed or reduced for something other than a math or clerical error, you may need to file Form 8862 before the IRS allows you to use the credit again.
TurboTax Desktop: Search for Form 8862 and select the Jump to link.
You'll come to the Earned Income Credit section. Select Continue.
Answer the questions. When you get to, Do any of these uncommon situations apply? check the box that says, I got a notice from the IRS saying that Form 8862 is required for the Earned Income Tax Credit.