I have recently started a very small general contracting business with my father. We are unsure of how to calculate taxes that need to be deducted from our profits.

We have only finished one small job since the beginning of the 2017 year. Neither of us is fluent in tax preparation or accounting, this is a new venture. We want to make sure we pay the correct amount of taxes owed and on time. I'm also unsure as to what taxes we need to pay. I've done my own research and have come across estimated tax and self employment taxes but I'm unsure what all applies to us. If anyone could give me advice it would be greatly appreciated!!