What would cause your return to be adjusted to zero the day you were expecting a direct deposit?

It could be due to an offset or a change to your tax return by the IRS:

An offset is used to pay off past-due federal tax, state income tax, state unemployment compensation debts, child support, spousal support, or other federal non tax debts, such as student loans. Also, you could see a change in your refund amount because the IRS made a change to your tax return. 

If the IRS made an adjustment or it is due to a change you will receive a notice in the mail.

Here is more information:

https://ttlc.intuit.com/replies/3288510

I was supposed to get almost $900 back fro federal. I got my state back, but not my federal. I looked up my status, and it says adjusted refund amount: $0.00. But I go to turbo tax, and it says it was accepted.. I’m very confused! Also that blue bar on turbo tax is in the middle. Any ideas??

There are multiple reasons why your refund may have been adjusted. For more information please click the link below.

What is a refund offset? - Community - TurboTax