This year, the optional standard mileage rate used to calculate the deductible costs of operating an automobile for business decreased by one-half cent, to 57.5 cents per mile. As a result, you might claim a lower deduction for vehicle-related expense for 2020 than you can for 2019. Calculating your deduction Businesses can generally deduct the actual expenses attributable to business use of vehicles. This includes gas, oil, tires, insurance, repairs, licenses and vehicle registration fees. In addition, you can claim a depreciation allowance for the vehicle. However, in many cases depreciation write-offs on vehicles are subject to certain limits that don’t apply to other types of business assets. The cents-per-mile rate comes into play if you don’t want to keep track of actual vehicle-related expenses. With this approach, you don’t have to account for all your actual expenses, although you still must record certain information, such as the mileage for each business trip, the date and ...