You have two choices when you report mileage on Schedule C at the end of the year. You can either use the IRS standard mileage rate ($0.655 per mile so far in 2023) or you can keep track of all allowable costs such as gas, oil, tune-ups, repairs, new tires, depreciation, etc. Regardless of which method you choose to use, you have to track total mileage for the year and the miles driven for mystery shopping. If you choose method 2 and 10% of the miles you drive are for mystery shopping, then the total of all expenses will end up being multiplied by 0.10. In addition to the mileage rate or actual expenses, you can, in addition, claim as business expenses highway tolls, bridge tolls, and parking expenses incurred while doing mystery shopping.
My belief is that most people use the standard mileage rate. You will find some people who say that they ask for money to cover gas. If they actually do that, then they are really short-changing themselves. Consider that if gas costs $5 per gallon, and you get 20 miles per gallon, the cost of gasoline alone would be $0.25 per mile, whereas the standard mileage rate is $0.655 per mile. You might think that $0.655 per mile is too low. The way to find out is to track all costs including depreciation and see which benefits you the most. Remember, that if you buy a new car and it depreciates $5000 in the first year and you use the car 10% of the time for mystery shopping, then the pro-rata depreciation is only $500. If you drive 2000 miles (out of 20,000 total miles = 10%), then that works out to $0.25 per mile ($500 / 2000 miles). In this pretend example, you are now up to $0.50 per mile. You need to find another $0.655 per mile to just break even against the IRS mileage rate. 2000 miles are $0.155 per mile = $310, but that is only 10%, so you would have had to have had $3100 in repairs, maintenance, sites, windshield wiper blades, etc. for the entire year.
@mcarlsonlane wrote:
Hello-thanks for all your good tips and guidance. When keeping track of mileage for shops (just like from my home to a restaurant shop), how do price the cost of gas? Do you get and save your gas receipts and then figure out what the breakdown is based on what you paid at the pump previously?
Shopping Southeast Pennsylvania, Delaware above the canal, and South Jersey since 2008