Have a Tax Question? Ask a Tax Expert
No, that amount sounds about right. I think you are overlooking the self-employment portion of taxes. As a self-employed individual, you are responsible for paying self employment tax, as well as be taxed on your regular income. Generally, the amount subject to self-employment tax is 92.35% of your net earnings from self-employment. If your filing status is single, you are in the 25% tax bracket. Refer to the following links for tax brackets.
As for owing less, you would have to increase your tax deductions or claim credits that are applicable to you. Legitimately, there is not a way to owe less unless you have the deductions.
Let me know if I can be of further assistance to you regarding this matter. If all is clear, a positive rating of 3 or more stars is appreciated so that I can receive credit for assisting you.
On a different note, I just noticed your username. I actually have the 45 RPM vinyl record by Falco. I love that song. I just have to mention that to you.