To find out why the software used $1200 on line 16, you can check to see how to see the how TurboTax calculated the Recovery Rebate credit.
TO VIEW THE RECOVERY REBATE CREDIT:
Click Tax Home
Click Review if necessary to get Tax Tools on the left side-bar
Click Tax Tools on the left side-bar (you may need to use the scroll bar for the left side-bar to see this)
Click Tools on the drop-down list
Click View Tax Summary on the Tools Center screen
When you do this, Preview my 1040 appears on the left side-bar
Click Preview my 1040 on the left side-bar
Scroll down and look at line 30 on the 1040 for your “Recovery rebate credit”
