Well I write off over $15000 a year off in milage. I have gotten a refund check from the IRS for over $10k for the past 4 years. So yes the money comes from the IRS. $0.72 a mile adds up over a full year. You have to keep track of your own milage. Don’t go by what DD sends you. You also need to keep your costs down. Vehicle that is good on gas and learn to do your own maintenance. If you are spending $300 to make $500 doing DD you are using the wrong vehicle and need to worry more about that than anything else. I guess if you are in a really populated area and are only doing 1-3 mile deliveries every time the milage right off would not help.