Tax question

I have a small business where I have self contractors. I also work full time and have a W-2. 

 

I pay quarterly taxes for my small business. Do I still owe more on my individual tax return? I paid like $7,000 over the year of taxes and now supposedly have to pay another $5,000 when doing my indivudual tax return. It doesn't feel like I should owe more if i already paid as much as I have.