It's been almost 25 years since I took my cost accounting class and am looking to see if this makes sense or if I'm missing something. I am using round numbers.
A friend started driving for Uber and we discussed whether or not it was financially worth the effort. He is not concerned about his time since he is retired, he enjoys it and it gets him out of the house. He had made about $10,000 and racked up about 7,500 miles.
His taxable income would be $5,125 ($10,000 less $4,875 mileage deduction), $3,900 after taxes. This got me thinking: is this the true income? I would argue it is not.
The only true variable cost in the mileage rate is gas. He would have to pay for insurance and licensing whether or not he drove for Uber. Repairs and depreciation are a mixed cost, as he would still have to make the repairs and the car would still depreciate even if didn't drive for Uber.
I used Kelly Blue book to see what impact the added mileage had on the value of the car, which was $600. He had $500 in repairs (none of which were directly attributable to driving for Uber) and the business usage was about 40%, making the repair costs attributable to business use $200. He gets 25 MPG and gas in this area is $3 a gallon, 12 cents a mile, making his cost for gas $900.
Looking at the cash flow, the true cost of driving for Uber is $1,700 ($900 for gas, $200 for repairs, and $600 for depreciation) making his true income $8,300. After taxes, he has about $7,000 more in his pocket driving for Uber.