This year it seems to be taking much longer for returns
to get processed. There's no way of knowing exactly when the IRS will update.
Some returns may take more time for the IRS to review. 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/3332479
However,
since your return was accepted 21 days ago or more, you can follow the
instructions in the following FAQ to contact the IRS for further assistance.
https://ttlc.intuit.com/replies/3302084