Ok i get 17 miles a gallon that is 3923 gallons of fuel for the loaded miles.Now as for deadhead the only deadhead i count is the miles to pick up the load.I dont count deadhead to layover spot because i may go where i think the best spot would be not the nearest spot .So with that said i added another 477 gallons on for deadhead to pickup only.And you want to know about the taxes.Ok last year i was out for 3 months on the road the rest of the time i had a reg job.So yes i hope not to pay any taxes but i sit aside 10 percent of my projected taxable wages.This way if i dont have to pay.That money will be like a refund.ON the fuel cost i took my last two week fuel tickets and did an avg of 3.35 a gallon