I'm using quickbooks with my Uber "business." I did my first quarterly and with expenses I was ahead by a couple hundred. Entering my mileage for the second quarter has been different. I notice that if I enter 100 miles which should be $54 (57?) then the deduction in taxes owed only changes by maybe $10 and not the full $54. Is 54 cents per mile the deduction or is 10 cents? There is no way to come out ahead if 10 cents a mile is all we actually get for car payment, gas, depreciation, etc. Please tell me I'm missing something here.