You make tax payments (taxes withheld) on your gross income received from an employer throughout the year. These payments are just estimates on what you may owe at the end of the year on federal tax return. Actually you came out very well since your total tax liability was almost exactly the same as your total tax payments.
Look at your federal tax return Form 1040.
Your taxable income is shown on Line 15. The tax on your taxable income is shown on Line 16 and your Total Taxes are shown on Line 24.
Your total tax payments and credits are shown on Line 33. Subtract Line 33 from Line 24 and this will be the amount of taxes owed on Line 37.
