DEFINITION of 'Mileage Allowance'
A deduction of automobile expenses for people using their vehicles for business, charity, moving, medical or any other purpose that qualifies for a deduction.
BREAKING DOWN 'Mileage Allowance'
There are different categories of purposes for deductible automobile-expenses, each of which has a specific cent-per-mile deduction. Careful documentation of the mileage and the reason for the trip is essential for audit-proofing your taxes.