<prompt> Human: Its a brand ambassador position, I basically travel to stores and demo products. Pay is 18hr, with 16 hours a month very likely many more hours after the first month.The only expense I can think of at the moment off the top of my head is gas and mileage. How much minimum am I going to have to set aside for taxes? How can I really help myself to pay the least amount of taxes?I read somewhere that if I become an S Corporation I will pay much less. Is this legal AND advisable? Additional info:1 I have another full time job in which I earn gross 4500 a month I am an employee, taxes automatically withheld.2 I am married and we file jointly, my wife does not earn income.  <response>: Dont start an S-corp for 3,500 a year in income. 