MileIQ is a technology company based in San Francisco, founded in 2011. It specializes in automated mileage tracking, primarily for self-employed individuals, freelancers, and business professionals. The company developed the MileIQ mobile app, which operates on Android and iOS devices. This app automatically tracks and logs driving mileage using smartphone sensors, artificial intelligence, and machine learning to differentiate between personal and business trips.

The MileIQ app runs in the background, capturing all driving activity without requiring manual input. Users can easily classify trips as personal or business with a simple swipe. The app offers a free version that tracks up to 40 drives per month, along with a premium subscription for unlimited drives and additional features. With over one million users, MileIQ has facilitated more than $10 billion in mileage reimbursements and tax deductions since its inception. The company returned to independent operation in 2021 after being acquired by Microsoft in 2015, focusing on enhancing its mileage tracking solutions.