The stimulus is NOT taxed ... the taxcaster asks how much you got in advance so you are not given credit on the return ... it gives you the full credit until you said you already got it (just like the TT program did) ... thus you will see a change naturally. Don't change this or the estimate will be off and not in your favor.
And the advance of 1/2 of the CTC will naturally reduce your refund since you got 1/2 of the credit up front.
