We both made roughly the same amount ~22,000 but my wife actually owes money this year. After looking at our w2s it looks like her withholding is significantly lower than mine (about a third of what was withheld from me). Why is this ? We both only have our w2s no extra forms and we both made around the same both are residents of the same state so why was her withholding so low throughout the year that now she owes money ?
