Telematics and Usage-Based Auto Insurance: How Driving Data Affects Your Premium
Usage-based programs use a phone app or device to track mileage and driving behavior, and may lower or sometimes raise your premium. Here's what's tracked, who benefits, and the privacy trade-offs.

Usage-based insurance (UBI) programs use telematics, data from a smartphone app, a plug-in device, or the car's built-in systems, to price auto insurance based on how much and how you drive. Some programs offer only discounts; others can raise premiums for risky driving, depending on the insurer and state.
What's commonly tracked
| Data | Why insurers use it |
|---|---|
| Mileage | More miles generally means more risk |
| Hard braking and rapid acceleration | Associated with higher crash risk |
| Speed | Speeding behavior |
| Time of day | Late-night driving can be riskier |
| Phone use while driving | Distraction |
| Cornering | Aggressive driving |
Types of programs
- Behavior-based: discounts or surcharges based on driving habits.
- Pay-per-mile: a base rate plus a per-mile charge, which can suit low-mileage drivers.
- Discount-only trials: an initial discount for enrolling, with a final rate based on results.

Who tends to benefit
- Low-mileage drivers.
- Drivers who avoid late-night driving and hard braking.
- Families with teen drivers who want feedback; see teen drivers.
Trade-offs
- Privacy: understand what's collected, how long it's kept, and who can access it.
- Possible increases: some programs can raise rates.
- Data use in claims: ask how data may be used after an accident.
Some states regulate how insurers can use telematics data.
See how to lower your car insurance premium.
The takeaway
Telematics programs reward low mileage and smooth driving. Read the privacy terms and whether rates can go up before enrolling.
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