There could be a few reasons that your deposit was less than
expected. First, if you opted to have your TurboTax fees taken out of
your refund, that could be a cause for a refund less than the original
amount. Second, it is possible that there was an offset for monies owed.
If that was the case, then you should have received notification from
the IRS. Last, the IRS could have made changes to your calculations
resulting in a lower refund. For more information, please review the
TurboTax FAQ below.
https://ttlc.intuit.com/replies/3288510