Hi there, 

When you do your taxes with TurboTax, we'll get your self-employed income info and then calculate the income tax due for you. If you made any estimated payments during 2016, we'll also get that info, which will lower the tax due. 

Then we'll walk you through any work-related deductions you have, which also lowers the tax due on your self-employed income. 

Before you file, you can choose how you want to pay any of the self-employed that's still tax leftover. We'll do all the math for you.