As you say, there are a lot of variables.
I suggest you look over Form 1040 (or the year to year comparison) to see what changed.
Look at your Adjusted Gross Income (line 11)
Look at your tax liability (line 16)
Next, look at credits you got on line 21 and finally the tax that was withheld on line 25d
If you see any large discrepancies, you might want to dig a little deeper.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
