Wait until your return has been accepted or rejected by the
IRS and then you can file an amended return to claim any additional refund due
to the Earned Income Tax Credit (EITC).
Instructions for amending a 2017 return
will be available in early February. If
you keep checking the information below, the link to the instructions will
become active when they are available.
https://ttlc.intuit.com/replies/3288565
https://ttlc.intuit.com/replies/3318732