Usage-based insurance, often shortened to UBI and sold under a variety of program names, prices part of your auto coverage on observed driving rather than on the proxies insurers have traditionally relied on. Instead of inferring risk from your age, your vehicle and your record, the insurer measures how much and how you actually drive.
The NAIC groups these programs into a few families: pay-as-you-drive, which is largely about mileage, pay-how-you-drive, which adds behavior, and hybrids of the two.
What gets measured
The data set varies by program, but the NAIC's descriptions of vehicle telematics consistently list the same core signals:
- Miles driven, the single strongest and least controversial variable
- Time of day, since late-night driving carries different crash exposure
- Hard braking, treated as a proxy for following distance and attention
- Rapid acceleration
- Hard cornering
- Location, where the program uses GPS
- Airbag deployment, which some programs use to trigger crash response
Smartphone-based programs commonly add phone handling while the vehicle is moving, which is the variable most likely to surprise a new participant. Some programs also score speed relative to posted limits.
How much of this a given program collects, and how much of it feeds the rate rather than a coaching dashboard, differs from insurer to insurer.
How the data is gathered
There are three common collection methods, and they are not equivalent.
| Method | How it works | Practical notes |
|---|---|---|
| Plug-in device | A dongle in the vehicle's OBD-II port | Ties data to a specific car rather than a person; usually returned at the end of a monitoring period |
| Smartphone app | The phone's sensors detect trips | Cannot always tell a driver from a passenger; may need to be running to record |
| Built-in connected car data | The manufacturer's own telematics, shared with the insurer with consent | No hardware to install; the consent path and what is shared are worth reading closely |
The phone-based approach creates the most common complaint: a trip taken as a passenger, in a rideshare, or on a train can be recorded as your driving unless you flag it. Most programs offer a way to reclassify trips, and finding out how before you need it saves effort later.
How it reaches your rate
Programs differ substantially in structure, and the distinction that matters most is whether the program can only help you or can also work against you.
Discount-only programs apply an enrollment credit and then a performance-based credit at the end of a monitoring period, with the downside limited to losing the credit. Continuous programs re-rate at each renewal based on the most recent period, which means the adjustment can go either direction over time. Mileage-based programs charge partly on distance, so the result follows how much you drive.
The NAIC notes plainly that while these programs are marketed on their discounts, not everyone drives better than average, and participation can also lead to a higher premium. Read the program terms for how a poor score is treated, whether the rate can increase, and whether you can withdraw.
Who tends to do well and who does not
Nothing here is a promise about your own result, which depends on your driving, your insurer's model and your state. But the patterns are predictable enough to be worth stating:
- Low annual mileage is the most consistently rewarded input across programs, which makes remote workers, retirees and second vehicles common candidates
- Long highway commutes accumulate miles quickly and may not score well on distance even when the driving is uneventful
- Dense urban driving produces more hard braking events for reasons that have little to do with the driver
- Night shift work collides with the time-of-day variable
- Delivery or rideshare driving is generally a separate issue entirely, since personal policies commonly exclude business use regardless of telematics. See rideshare and delivery driving coverage
Telematics and teen drivers
Several programs are used by households mainly for the feedback rather than the rate. Trip reports, speed alerts and phone-use flags give a parent something concrete to discuss with a newly licensed driver, and the Insurance Research Council has reported that a large share of participants say they changed how they drive after joining a program.
If that is the goal, ask whether the program reports per driver or per vehicle, since a vehicle-level program in a shared car tells you very little. See adding a teen driver to your policy.
Privacy, data retention and disclosure
This is the part worth slowing down on, because the answers are program-specific and generally available only in the enrollment terms.
- What is retained, and for how long? Trip-level detail and location history are not the same thing as an aggregate score.
- Who else receives it? Programs vary on sharing with affiliates, service providers and analytics vendors.
- Is it used in a claim? Insurers may use telematics data in investigating a claim, and it can be sought in litigation.
- Can you leave, and what happens to the data? Withdrawal terms and deletion rights differ, and some states give residents broader data rights than others.
- Is the data reported to an outside exchange? Some driving data has been shared with consumer reporting agencies. You can request your own file from the specialty reporting agencies that maintain it. See CLUE reports and claims history.
Some states have enacted disclosure requirements around tracking practices, and the rules continue to develop. Your state's Department of Insurance is the authority for what applies where you live.
Questions to ask before enrolling
- Is this discount-only, or can my rate increase based on the results?
- How long is the monitoring period, and is monitoring continuous after it?
- Is scoring per driver or per vehicle, and how are passenger trips handled?
- Which specific behaviors are scored, and is phone use one of them?
- Is location collected, and is it used in rating?
- How long is data retained, who is it shared with, and can I request deletion?
- Can I withdraw mid-term, and does withdrawing forfeit the enrollment credit?
- Is the resulting credit portable if I move or change vehicles?
If a program is a poor fit, the traditional discounts have not gone anywhere. See insurance discounts worth asking about.
Related reading: how insurers set your rate, safety technology, repair costs and your auto rate, and how to shop for insurance.
Program availability, scored variables, rating impact, data practices and withdrawal rules vary by insurer, by program and by state, and the program terms and your policy control. For your own situation, speak with a licensed agent, your insurer, or your state's Department of Insurance. You can also request auto insurance quotes and get connected with licensed providers in your area.