Taxpayers who
claim the Earned Income Tax Credit (EITC) or the Additional Child Tax
Credit (ACTC) may experience a refund hold. The IRS has just begun to
process these returns. There's no way of knowing exactly when the IRS
will update. You will need to keep checking the Where’s My Federal Refund? tool for updates. Updates are made daily, usually
overnight.
https://ttlc.intuit.com/replies/5556415
