In this guide
Usage-based car insurance, also called telematics insurance, sets or adjusts your premium using data about how you drive, collected by a phone app or a device in your car. It can reward careful driving, but your rate may not drop, and in some programs it can rise. You also share location and driving data with your insurer. Knowing what is tracked, how it's used, and whether you can opt out helps you decide if it fits you.
Key takeaways
- Telematics programs measure behaviors like hard braking, rapid acceleration, time of day, and miles driven.
- Safe drivers may earn lower premiums, but drivers who aren't better than average may not.
- Privacy is the main concern: ask what data is collected, how long it's kept, and who can see it.
- Program rules vary widely: some give only a discount, others can raise your rate.
- Read the terms before you enroll and ask about your options if you change your mind.
What usage-based insurance is
The NAIC describes usage-based insurance (UBI) as insurance priced using data about how and how much you drive. Names include pay-as-you-drive, pay-how-you-drive, and distance-based insurance. The data comes from a device plugged into the car, a built-in system, or a smartphone app.
According to the NAIC, telematics can record miles driven, time of day, where the vehicle is driven, rapid acceleration, hard braking, hard cornering, and airbag deployment, with data sent to the insurer in real time. Most programs use some mix of these.
There are two broad styles:
- Behavior-based. Your driving habits adjust your price. Sometimes you start with a trial discount, then a score decides the final rate.
- Mileage-based. The distance you drive is the main factor. See pay-per-mile car insurance for how that works.
How a typical program works
- You opt in and install an app or plug in a device.
- A monitoring period begins, often several weeks to several months, depending on the insurer.
- The insurer scores your driving based on the factors it tracks.
- Your premium is adjusted at enrollment, at renewal, or on an ongoing basis.
Some insurers apply a discount just for signing up and then re-rate you later. Others only adjust at renewal. Because the terms differ, ask for the details in writing.
Pros of telematics insurance
- Your own driving can matter. The NAIC notes that low-risk drivers may get lower premiums, and drivers who mostly make short, slower trips may pay less than those who drive long distances at high speeds.
- It may encourage safer habits. Feedback on braking and speed can show where to improve. The NAIC adds that smoother driving can also improve fuel economy.
- It can help younger or newer drivers prove their record. A driver without a long history may show how they actually drive. See car insurance for teen drivers.
- Additional features. Some programs offer crash detection or trip feedback.
Cons and risks
- Privacy. The NAIC says sharing location and driving behavior with an insurer raises privacy concerns. Its consumer pieces call privacy the main downside.
- Your rate may not fall. The NAIC points out that premiums may go up or down depending on behavior, and drivers who aren't better than average may not qualify for a discount.
- Some behaviors count against you that you might not expect, such as late-night driving or frequent hard braking in stop-and-go traffic.
- Possible use of data in claims. The NAIC suggests asking whether you can decide if telematics data is used to settle a claim after an accident.
- Phone distraction or battery drain. App-based programs run in the background, and a poor signal may affect scoring accuracy.
- State rules differ. Whether and how insurers can use driving data in pricing depends on the state. In California, for instance, state law requires mileage and driving record to rank among the key rating factors, and the Department of Insurance has said proposals to add broader telematics-based pricing conflict with that law as of 2026. Ask your state insurance department how rules apply where you live.
Questions to ask before you enroll
The NAIC suggests these checks, and a few more are worth adding:
- What exactly will be monitored, and which devices or apps are used?
- Can my rate go up, or can the discount only stay the same or fall?
- How long does the monitoring period last, and when does the rate change?
- Who sees my data, and is it shared with other companies?
- How long is my data stored, and can I ask for it to be deleted?
- Can I leave the program, and what happens to my price if I do?
- Can the data be used in a claim, and do I control that?
Tip: If you want to see how you'd score, ask whether the insurer offers a trial period that doesn't change your price until you decide. Programs vary, so confirm the rules first.
Who may find it a good fit
This isn't personal advice, but telematics programs may be worth a look if you:
- Drive carefully, avoid late-night trips, and rarely brake hard.
- Drive short distances or don't drive often.
- Are comfortable sharing driving data.
- Are new to driving and have little history to show.
It may be less appealing if you commute in heavy stop-and-go traffic, drive late at night for work, share the car with people whose habits you can't control, or simply want to keep your data private.
Telematics vs. other ways to cut costs
| Approach | What changes | Trade-off |
|---|---|---|
| Telematics program | Price reflects your driving data | Privacy; rate may not fall |
| Pay-per-mile | Price reflects miles driven | Best suited to low-mileage drivers |
| Higher deductible | You take more of each loss | Needs savings to cover it |
| Discount checklist | Price reflects traits like student or bundling status | Eligibility varies |
See our car insurance discounts checklist and ways to lower your premium for other options. Comparing quotes from several insurers, including programs with and without telematics, may give a clearer picture of the real difference.
Frequently asked questions
Can telematics raise my premium?
It can, depending on the program. The NAIC says premiums may go up or down based on driving behavior. Some programs only offer discounts, so ask the insurer to explain.
Does the insurer track me all the time?
Many programs collect data while you drive, and some apps run in the background. Ask what is recorded and when.
Can I stop participating?
Often yes, but you may lose any discount you earned. Ask how it affects your premium and your data.
Are passengers' phones tracked?
Some apps try to detect whether you or a passenger was driving, but accuracy varies. Ask how the program handles this.
Where can I get more information?
Your state insurance department and the NAIC publish consumer guidance on usage-based insurance.
Sources
- NAIC – Understanding Usage-Based Insurance
- NAIC – Want Your Auto Insurer to Track Your Driving?
- NAIC CIPR – Telematics
- NAIC – Auto Insurance consumer page
General information only. This guide explains general concepts and is not insurance, legal or financial advice. Rules and prices vary by state and insurer. Check your policy documents and speak to a licensed insurance professional or your state insurance department about your situation.