Wife and lived together with kids for about 13 years while I finished school. During that time, of course we filed separately and always got back some dough. Our annual income then was about 38000 a year. I finished school, we got married and now our annual income is around 135k a year. Now, we owe each year and can't wrap our heads around why it's so much. We have 2 kids who are dependents and file married and each year for the last 3 years we've had a 2k tax bill. I get that increased income means no more earned income credit, but why such a large debt when both of us have our W2s set to take out the most each pay.

Can anyone help explain why? Or does any one else have to pay do much?