Vehicle Expenses Keeping good records and knowing what you can deduct will save you money.
Business mileage is tax-deductable. Business miles accumulatewhen you drive for the purpose of either doing business or seekingbusiness; going to talk to a potential client, visiting a supplier,and doing something related to the promotional aspects of yourbusiness are all considered business mileage. The mileage you drivefrom your home office to any other location for buisiness pruposesis deductable. As with your other deductions, you must be able tosupport your claims for business miles. Keep a log by entering yourbusiness mileage after each trip. Enter your total daily businessmileage on your appointment calendar at the end of each day.
Excerpted from Starting a Home-based Business