Complying with IRS mileage tracking requirements means maintaining clear, detailed records of each business-related trip taken throughout the year. This includes the exact date, starting and ending mileage, purpose of the trip, and destination. The IRS accepts both paper logs and digital tracking solutions, as long as the information is accurate and regularly updated. Failing to meet these standards can result in rejected deductions and potential penalties. Using a reliable system not only simplifies tax filing but also ensures peace of mind in case of an audit.