Is can i write off gas and mileage a valid tax write-off?

Gas and mileage expenses are deductible when they are incurred for business purposes. You can choose between the standard mileage rate or actual expenses method. The standard mileage rate simplifies the process by allowing a deduction based on a fixed rate per mile driven for business, while the actual expenses method requires tracking all vehicle-related expenses, including gas, maintenance, and depreciation. Personal and commuting miles are not deductible.