my taxes was rejected due to I need to attached my 8862 form where do I add it so I can file

Go to Deductions & Credits > You and Your Family > Earned Income Credit (EIC).

 

Step through the interview until asked about Form 8862, and the form will be prepared for you so you can Efile.

 

Here's instructions on How to Eile Form 8862.

 

@Clintonhoward45