Why is my refund $1200 less then turbotax calculated?

[the_fox_57]

Why is my refund $1200 less then turbotax calculated? We filed married jointly and got $2400 stimulus with combined income less then $150000

[DoninGA]

Have you received the second stimulus payment at $600 for each of you?

[SweetieJean]

The IRS will be sending you a letter; they do not notify TT.  But my guess is that you claimed a Recovery Rebate Credit for stimulus #2 ($600 per person),  but that the IRS records show it was already sent to you.  Did you perhaps receive it in 2021, after you had filed?