The acknowledgement email from TurboTax would be that your refund was "Accepted" by the IRS. Once the IRS accepts your return, TurboTax receives no further information from the IRS regarding your return. Turbotax gives an estimated date based on the IRS's 21 day timeframe.
Continue to monitor the IRS Where’s My Federal Refund? site for updates. Updates are made daily, usually overnight. You may also download the IRS2Go app to check your Federal refund status.
The general timeline of e-filed returns is: Transmission > Acceptance > Processing > Approval > Refund.
Please see the TurboTax FAQ's below for more information:
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