To add. It does look like more than last year, for me. For me it can get tricky to monitor because of floating one of my sons alternating years with my exh. Last year I filed for 3 since he had zero on the book wages for the first time in his work history. And there's the internal job change back in fall of '17 which was a wage increase=more taxes paid. And this year the DOR is pushing all of my exes refund my way for back pay on child support.
Either way, I'm not in the category of being negatively affected by tax reform.