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Thank you. I spent several hours with the W-4 Calculator today and I think I left more confused than I was before. A lot of my wife's income is through bonuses so that made the calculator difficult. I did it without bonuses and by averaging them into her monthly paychecks. Both times said we would get a little bit back instead of owing a ton. We knocked our allowances down to 2 and I suppose we could just as easily tack on an additional amount each paycheck as well.  

Could the huge amount we owe be solely due to us having too many allowances (6) on our W4?