Could it be for a state refund? Federal and state refunds come from different places at different times. At the end Turbo Tax just shows you the net federal and state combined. But that is only for your info.
Or did you have the fees deducted from your refund? There is an extra $40 (45 in California) Refund Processing Service charge for that.
How to see your fees
https://ttlc.intuit.com/community/charges-and-fees/help/how-do-i-review-my-fees-in-turbotax-online/0...
