Where exactly do you see "tax owed"? I think you might be looking at the amount that you have to pay, which is not the total tax on your income. If you had tax withheld during the year, the tax that was withheld is applied to your total tax. If the tax withheld is less than your total tax, you have to pay the difference.
For example, if you your taxable income is $4,400, the total tax from the tax table is $443. If you had $394 of tax withheld, you would now owe an additional $49 ($443 minus $394).
