You choose between the standard mileage rate and actual vehicle costs. With the standard rate, you multiply business miles by the IRS rate. You can't also deduct gas, oil, maintenance and repairs, insurance, registration, lease payments, or depreciation for that year.
The IRS business standard mileage rates are 72.5 cents per mile for January 1–June 30, 2026, and 76 cents per mile for July 1–December 31, 2026. A driver with 10,000 business miles in each half of 2026 would have a mileage deduction of $14,850.
To use the standard rate on a car you own, you must choose it in the first year the car is available for business. On a leased car, you must use it for the whole lease.
Business parking and tolls are deductible on top of the standard rate. Commuting isn't deductible, however far you drive. Whether the drive from home to your first pickup counts depends on your facts, so ask a tax professional if it adds up to a lot of miles.