This year, the optional 2020 business mileage rates used to calculate the deductible costs of operating an automobile for business decreased by one-half cent, to 57.5¢ per mile. As a result, you might claim a lower deduction for vehicle-related expense for 2020 than you could 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,...