My husband filed exempt on his W-4 when he changed jobs in April. At his previous job, his W-4 said 1 so federal taxes were taken out. At the time, I was not working and we had 2 dependents. We own our home and I was in school full time up until May. I did not start working until August. Also, when I started my job, I put 0 on my W-4. How screwed are we when we file our taxes?