Keep mileage logs

When you keep mileage logs for a tax deduction, not only should you keep records for each trip: date, destination/purpose, beginning mileage, ending mileage, business mileage, personal mileage and total miles, you should also make sure the destination and purpose of the trip is not vague. It should contain a specific address and the client's name, not just the city. It is also a good idea to keep third party records, such as service records to support odometer readings.