Vehicle expenses can be a valuable tax deduction, but only when mileage is properly classified and documented. For tax purposes, the deductibility of mileage depends on whether the travel is considered business, commuting, or personal. Understanding these distinctions is essential to support allowable business mileage deductions.
What Qualifies as Business Mileage
Business mileage includes travel that is directly related to conducting business and generally qualifies for a tax deduction.
Common examples of deductible business mileage include:
- Driving from your office to meet with a client or customer
- Traveling between multiple business locations or job sites in the same day
- Running business-related errands, such as trips to the bank, post office, or office supply store
- Driving from home directly to a temporary work location or client site
These miles may be deducted using either the standard mileage rate or the actual expense method, provided only the business-use portion of vehicle expenses is claimed.
Mileage That Is Not Deductible
- Commuting Mileage
Travel between your home and your primary or permanent place of business is considered commuting and is generally not deductible, regardless of distance or time spent.
- Personal Mileage
Miles driven for personal or non-business activities are never deductible. This includes personal errands, social travel, and any personal portion of an otherwise business-related trip.
Key Requirements to Support Business Mileage Deductions
- Business Purpose Is Critical: The primary reason for the trip determines whether mileage qualifies as deductible business use.
- Maintain Detailed Mileage Logs: Taxpayers must keep contemporaneous records that document the date, destination, business purpose, and number of miles driven for each business trip.
- Deduct Only Business Use: When using a vehicle for both business and personal purposes, only the business-use portion of total mileage may be deducted.
Proper tracking and documentation of business mileage can help maximize allowable deductions while ensuring compliance with IRS requirements. Taxpayers should work closely with their tax advisor to determine the most appropriate deduction method and to maintain adequate records.
